CN101511522A - Method of welding and method of friction stir - Google Patents

Method of welding and method of friction stir Download PDF

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Publication number
CN101511522A
CN101511522A CNA2007800333991A CN200780033399A CN101511522A CN 101511522 A CN101511522 A CN 101511522A CN A2007800333991 A CNA2007800333991 A CN A2007800333991A CN 200780033399 A CN200780033399 A CN 200780033399A CN 101511522 A CN101511522 A CN 101511522A
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China
Prior art keywords
throw
friction stir
joint
formal
adapter piece
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CNA2007800333991A
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Chinese (zh)
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CN101511522B (en
Inventor
佐藤勇人
堀久司
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Nippon Light Metal Co Ltd
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Nippon Light Metal Co Ltd
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Priority claimed from JP2006271246A external-priority patent/JP4935282B2/en
Priority claimed from JP2006271245A external-priority patent/JP4957160B2/en
Priority claimed from JP2006271244A external-priority patent/JP4844328B2/en
Priority claimed from JP2006271249A external-priority patent/JP4844329B2/en
Priority claimed from JP2006271248A external-priority patent/JP5082364B2/en
Priority claimed from JP2006271247A external-priority patent/JP4957161B2/en
Priority to CN201310280336.3A priority Critical patent/CN103495801B/en
Priority to CN201210137735.XA priority patent/CN102672342B/en
Priority to CN201110199754.0A priority patent/CN102267007B/en
Application filed by Nippon Light Metal Co Ltd filed Critical Nippon Light Metal Co Ltd
Priority claimed from PCT/JP2007/055346 external-priority patent/WO2008041380A1/en
Publication of CN101511522A publication Critical patent/CN101511522A/en
Application granted granted Critical
Publication of CN101511522B publication Critical patent/CN101511522B/en
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Abstract

A method of welding that realizes enhancements of airtightness and watertightness at weld area; and a method of welding and method of friction stir that attain an enhancement of welding operation efficiency/speed. There is provided a method of welding comprising the first principal welding step of carrying out a friction stir on abuttal portion (J1) of metal member (1,1) from the surface (12) side of metal member (1) and the second principal welding step of carrying out a friction stir on the abuttal portion (J1) from the reverse face (13) side of the metal member (1), wherein in the second principal welding step, the friction stir is performed while penetrating stir pin (B2) of rotation tool (B) in plasticized region (W1) formed in the first principal welding step.

Description

Joint method and friction stir method
Technical field
The present invention relates to a kind of joint method and friction stir method that utilizes the hardware of friction stir.
Background technology
As the method that hardware is engaged with each other, known friction stir engages (FSW=FrictionStir Welding) (with reference to following cited document 1～9 (the publication communique of Japan's special permission Room distribution)).It is following method that friction stir engages: move while throw is rotated along hardware docking section each other, it is mobile to utilize the frictional heat of throw and hardware to make the metal of docking section make plasticity, makes hardware solid phase joint each other by this.In addition, throw is generally the outstanding instrument that pin (probe) forms that stirs that is provided with on the lower surface of cylindrical shoulder.
Patent documentation 1: 11-No. 342481 communiques of Japanese patent laid-open
Patent documentation 2: the Japan Patent spy opens communique 2004-No. 358535
Patent documentation 3: the Japan Patent spy opens communique 2005-No. 131666
Patent documentation 4: the Japan Patent spy opens communique 2003-No. 164980
Patent documentation 5: the Japan Patent spy opens communique 2002-No. 248582
Patent documentation 6: the Japan Patent spy opens communique 2002-No. 1551
Patent documentation 7: the Japan Patent spy opens communique 2005-No. 66669
Patent documentation 8: the Japan Patent spy opens communique 2004-No. 154798
Patent documentation 9: the Japan Patent spy opens communique 2003-No. 326374
Under the thickness specific rotation of the hardware that will engage is changed a job the big situation of the length of stirring pin of tool, also to carry out friction stir and engage (for example reference literature 1～3) after friction stir engages carrying out sometimes from rear side from the face side of hardware.In addition, if increase the length that stirs pin, then only carrying out the friction stir joint from face side just can be engaged with each other hardware, but increase owing to put on the load of the drive unit of friction stir device, under situation about can't tackle, must transform or introduce large-scale friction stir device to the friction stir device with existing friction stir device.
If friction stir is carried out in hardware docking section each other, then such as document 2 record, may produce so-called tunnel (tunnel) defective along the direct of travel of throw.Even though there is the tunnel defective also to be unlikely to influence the quality at junction surface, under the situation of air-tightness of having relatively high expectations and watertightness, the tunnel defective must be cut off, make it discontinuous.In addition, what disclose in the document 2 is the hardware that is formed with stage portion on the end face to be docked each other and the technology that forms recess on the docking section, the docking section of the connecting plate that embeds this recess and hardware is carried out friction stir, by this hardware is engaged with each other, but, thereby carrying out after the friction stir to hardware docking section each other, utilizing mobile throw to come the crosscut docking section that the technology of tunnel defective cut-out is also revealed.
In document 4,5, disclosed before the formal joint in the hardware docking section each other that desire is engaged by friction stir the interim technology that engages in above-mentioned docking section; In the both sides of hardware docking section each other configuration adapter piece (tab) (abutting member), the starting position of the friction stir that on this adapter piece, is provided for formally engaging or the technology of end position; And before hardware docking section is each other formally engaged, adapter piece is engaged in the technology of hardware etc.
In document 6, disclosed before the formal joint in the hardware docking section each other that desire is engaged by friction stir by the technology of friction stir with the interim joint in above-mentioned docking section; In document 7, the starting position of the friction stir that on the adapter piece of the both sides that are disposed at hardware docking section each other, is provided for formally engaging or the technology of end position have been disclosed; And the technology etc. that before formal the joint, adapter piece is engaged in hardware by friction stir with hardware docking section each other.
In document 7 and document 8 etc., disclosed on the adapter piece of the side that is disposed at the hardware docking section each other that desire engages the starting position of friction stir or the technology of end position have been set.
In document 9, disclosed in the starting position of friction stir and formed bottom outlet, begin to carry out the friction stir method of friction stir from this bottom outlet.
In addition, the rotating speed of throw and transporting velocity friction stir such as (translational speeds) condition is according to suitably setting as the material of the hardware of the object of friction stir and thickness etc., in document 2,3,5,6,9, though also disclosed various friction welded conditions, but in any one piece of document, all be to play from the moment of inserting (being pressed into) starting position the rotary speed of throw to be kept constant till breaking away from from end position, throw is moved with constant transporting velocity.
The announcement of invention
In the joint method of document 1～3, the zone of plastification by the friction stir of carrying out from face side (hereinafter referred to as " face side plastification zone ") has a trickle joint defect with the boundary member in the zone (hereinafter referred to as " rear side plastification zone ") of plastification is residual sometimes by the friction stir of carrying out from rear side.If such joint defect couples together, the air-tightness at junction surface and watertightness are descended, therefore undesirable.In addition, in document 1～3, face side plastification zone and rear side plastification zone are contacted or overlapping slightly at the central portion of the thickness direction of hardware, by this on whole thickness direction with the hardware joint, so bond strength can be sufficient.
From the point of view, problem of the present invention provides a kind of joint method that improves the air-tightness and the watertightness at junction surface, and a kind of joint method and friction stir method that engages operating efficiency, rapidization that make also is provided.
The joint method claimed in claim 1 that is used for solving above-mentioned problem comprises the first formal second formal operation that engages that engages operation and from the rear side of above-mentioned hardware described docking section is rubbed and stirs that above-mentioned hardware docking section is each other rubbed and stirs from the face side of hardware; The method is characterized in that, will the length of the above-mentioned first formal stirring pin that engages the throw that use in the operation be set in more than the thickness of the above-mentioned hardware of locating above-mentioned docking section in the above-mentioned second length sum that formally engages the stirring pin of the throw that uses in the operation.
The principal character of joint method of the present invention is, above-mentioned second formal the joint in the operation, makes the stirring pin of throw enter the plastification zone that forms and carry out friction stir simultaneously in the above-mentioned first formal joint operation.
Thus, in the first formal deep that engages the plastification zone (face side plastification zone) that forms in the operation second formal the joint in the operation by the stirring pin of throw once again by friction stir, even therefore be formed with joint defect etc. in the deep in face side plastification zone, also can be with corrections such as this joint defects, thus the air-tightness and the watertightness at junction surface can be improved.
In addition, because plastification is to the also dark position of front end than the stirring pin, therefore as described in the above-mentioned prior art, even the stirring pin of the throw that uses the friction stir of carrying out from rear side is lacked, can't be arrived under the situation in face side plastification zone, face side plastification zone and rear side plastification zone are contacted or overlapping slightly at the central portion of the thickness direction of hardware, but, but can't fully positively revise the joint defect in the deep that is formed at face side plastification zone etc.Relative therewith, in the present invention, in the second formal joint operation, make the stirring pin enter face side plastification zone and directly carry out friction stir, therefore can fully positively revise the joint defect that is formed at face side plastification zone.
In the present invention, with the length setting of the above-mentioned first formal stirring pin that engages the throw that uses in the operation in more than 1/2 of thickness of the above-mentioned hardware at place, above-mentioned docking section, and the getting final product more than 1/2 of the thickness of the above-mentioned hardware of will the above-mentioned second formal length setting that engages the stirring pin of the throw that uses in the operation locating in above-mentioned docking section.Thus, face side plastification zone is overlapping at the central portion of the thickness direction of hardware with rear side plastification zone, and the difference of the sectional area in the sectional area in face side plastification zone and rear side plastification zone diminishes, the homogeneous so the quality at junction surface becomes.In addition, the length of the stirring pin of each throw is obviously less than the thickness of hardware.
In addition, if the above-mentioned second formal length that engages the above-mentioned stirring pin of the above-mentioned throw that uses in the operation is made as identical with the length of the above-mentioned first formal above-mentioned stirring pin that engages the above-mentioned throw that uses in the operation, then face side plastification zone is equal with rear side plastification zone, therefore the quality at junction surface homogeneous more, and, owing to can formally engage the same throw of use in the operation in the first formal operation and second that engages, therefore can improve operating efficiency.
In addition, with the above-mentioned first formal length L that engages the stirring pin of the throw that uses in the operation 1And the above-mentioned second formal length L that engages the stirring pin of the throw that uses in the operation 2Be set at and satisfy following relation and get final product: when the thickness of the above-mentioned hardware at place, above-mentioned docking section is made as t, 1.01≤(L 1+ L 2)/t≤1.10.If (L 1Ten L 2)/t is more than 1.01, even then hardware has dimensional tolerance etc., also can make the stirring pin positively enter face side plastification zone in the operation second formal the joint.If (L 1+ L 2)/t is greater than 1.10, and then the size of each throw increases to more than the required size, and the load that puts on the friction stir device increases, therefore (L 1+ L 2)/t is preferably below 1.10.
In the present invention, with the length setting of the above-mentioned first formal stirring pin that engages the throw that uses in the operation in below 3/4 of thickness of the above-mentioned hardware at place, above-mentioned docking section, and the getting final product below 3/4 of the thickness of the above-mentioned hardware of will the above-mentioned second formal length setting that engages the stirring pin of the throw that uses in the operation locating in above-mentioned docking section.Thus, owing to when carrying out friction stir, do not need the dorsal part fitting, therefore can improve operating efficiency.
In addition, when the first formal end position that engages the friction stir in the operation breaks away from the stirring pin upward, can form inevitably and the roughly the same punching of shape of stirring pin, if and the mobile alignment and the punching of the stirring pin of the throw that uses in the second formal joint operation are overlapping, then the metal of plasticity liquidation may flow in the punching, produces joint defect.Therefore, first formal engage the punching that forms in the operation still residual situation under, be preferably and set the above-mentioned second formal route that engages the friction stir in the operation, make it avoid above-mentioned punching, the second formal stirring pin that engages the throw that uses in the operation is moved along this route.
In addition, even at the second formal stirring pin that engages the throw that uses in the operation under the situation by the first formal punching that engages operation, space betwixt from hour, the metal of plasticity liquidation may be pushed to punching, produce joint defect, therefore be more preferably the above-mentioned first formal end position and above-mentioned second that engages the friction stir in the operation is formally engaged more than the external diameter of shoulder that beeline between the motion track of the above-mentioned throw that uses in the operation is made as the above-mentioned second above-mentioned throw that formally uses in the joint operation.
Before implementing the first formal joint operation, can implement the interim interim joint operation that engages in hardware docking section each other.The interim method that engages does not have special restriction, can be undertaken by welding or friction stir, engaging by friction stir under the situation of operation temporarily, be preferably use than the above-mentioned first formal more small-sized interim joint throw of throw that uses in the operation that engages, friction stir carried out in above-mentioned docking section from the face side of above-mentioned hardware.Thus, be difficult for perforate taking place when the face side of hardware carried out friction stir, therefore can engage with good precision in the docking section first formal engage in the operation.In addition, if when enforcement first formally engages operation, water-cooled is carried out in the docking section, then cooling water may enter between the hardware, make and produce oxide scale film on the composition surface, if but implement the interim operation that engages, seam with the face side of hardware is airtight in advance, and then cooling water is difficult to enter between the hardware, therefore can improve the quality at junction surface.
Before implementing the second formal joint operation, also can implement to engage operation temporarily.In the case, be preferably use, friction stir carried out in above-mentioned docking section from the rear side of above-mentioned hardware than the above-mentioned second formal more small-sized interim joint throw of throw that uses in the operation that engages.
In addition, owing to the interim joint and the adapter piece that carry out before formal the joint only are the preparatory joints of implementing in order formally to engage with engaging of hardware, though therefore wish to accomplish efficient activity and rapidization any preparatory joint operating efficiency and rapidization of all can't making in the technology of above-mentioned document 4～7.
For example, shown in document 4,5, undertaken by welding under the hardware interim joint and the situation about engaging of adapter piece and hardware each other, because handwork is more, therefore operating efficiency is low, is not suitable for the many situations of posetionof weld and carries out mass-produced situation.
In addition, shown in document 6,7, engage by friction stir temporarily and the situation of the preparatory joints such as joint of adapter piece under, because the operation that is to use the friction stir device to carry out, therefore compare with the situation of the welding of being undertaken by handwork, more can reach the effect of efficient activity and rapidization, but because the plug of throw needs the time, if therefore the plug of throw often, then can influence preparation property and engage efficiency of operationization and rapidization.
In order to address the above problem, to be preferably and to adopt the described joint method of claim 11.The described joint method of claim 11 comprises: preparatory process, in this preparatory process, distolateral configuration first adapter piece in hardware docking section each other, make the bearing surface of above-mentioned first adapter piece be connected to the side of above-mentioned two metal elements, and another distolateral configuration second adapter piece in above-mentioned docking section makes the bearing surface of above-mentioned second adapter piece be connected to the side of above-mentioned two metal elements; First adapter piece engages operation, engages in the operation at this first adapter piece, and friction stir is carried out in the docking section of above-mentioned first adapter piece and above-mentioned two metal elements; The interim operation that engages this interim joint in the operation, is carried out friction stir to above-mentioned hardware docking section each other; Second adapter piece engages operation, engages in the operation at this second adapter piece, and friction stir is carried out in the docking section of above-mentioned second adapter piece and above-mentioned two metal elements; And formally engage operation, this formal joint in the operation, friction stir is carried out in above-mentioned hardware docking section each other under the interim engagement state, this joint method is characterised in that, the terminal point that engages operation at above-mentioned first adapter piece does not finish friction stir, but carry out friction stir continuously, till the starting point of above-mentioned interim joint operation, directly be transferred to above-mentioned interim joint operation then.
Thus,, and need not to implement the insertion operation of throw, therefore can make preparatory joint operating efficiency, rapidization in the interim starting point that engages operation because the terminal point that engages operation at first adapter piece need not to implement the separating operation of throw.
Under the condition that throw is broken away from, carry out friction stir, under the situation till the starting point of interim joint operation, starting point in above-mentioned interim joint operation can not finish friction stir, but carry out friction stir continuously, till the terminal point of above-mentioned interim joint operation.Thus, at the interim separating operation that does not need to implement throw in the operation fully that engages, therefore can make preparatory joint operation efficient activity, rapidization further.
Under the condition that throw is broken away from, carry out friction stir, under the situation till the terminal point of interim joint operation, terminal point in above-mentioned interim joint operation can not finish friction stir, but carry out friction stir continuously, engage up to above-mentioned second adapter piece till the starting point of operation, directly be transferred to above-mentioned second adapter piece then and engage operation.Thus, need not to implement the separating operation of throw, and need not to implement the insertion operation of throw, therefore can make preparatory joint operation efficient activity, rapidization further in the starting point that second adapter piece engages operation at the interim terminal point that engages operation.
Under the situation till carrying out friction stir under the condition that throw is broken away from, engaging the starting point of operation up to second adapter piece, the terminal point that engages operation at above-mentioned second adapter piece can not finish friction stir, but carries out friction stir continuously from the origin-to-destination of above-mentioned second adapter piece joint operation.Thus, the terminal point that engages operation at second adapter piece need not to implement the separating operation of throw, so can make preparatory joint operation efficient activity, rapidization further.
In addition, even in operations such as first adapter piece joint operation, make under the situation of throw disengaging, as long as the terminal point in above-mentioned interim joint operation does not finish friction stir, but carry out friction stir continuously, engage up to above-mentioned second adapter piece till the starting point of operation, directly be transferred to above-mentioned second adapter piece then and engage operation, then need not to implement the separating operation of throw at the interim terminal point that engages operation, and need not to implement the insertion operation of throw in the starting point that second adapter piece engages operation, therefore can make preparatory joint operation efficient activity further, rapidization.
In addition, making under the dextrorotary situation of throw, may produce trickle joint defect in the left side of throw direct of travel.Therefore, above-mentioned first adapter piece is engaged under the dextrorotary situation of using in the operation of throw, engage the starting point of operation and the position of terminal point as long as set above-mentioned first adapter piece, the right side that makes above-mentioned hardware be positioned at the direct of travel of above-mentioned throw gets final product.Thus, be difficult to produce joint defect, therefore can obtain high-quality conjugant in the hardware side.
In addition, make throw under the situation of anticlockwise, may produce trickle joint defect on the right side of throw direct of travel.Therefore, make the throw that uses in above-mentioned first adapter piece joint operation under the situation of anticlockwise, engage the starting point of operation and the position of terminal point as long as set above-mentioned first adapter piece, the left side that makes above-mentioned hardware be positioned at the direct of travel of above-mentioned throw gets final product.
In addition, as long as the terminal point that will engage operation from above-mentioned first adapter piece is set on above-mentioned first adapter piece to the route of the friction stir of the starting point of above-mentioned interim joint operation, the motion track the when terminal point that makes throw engage operation from first adapter piece moves to the starting point of interim joint operation is formed at first adapter piece and gets final product.Thus, the operation till the terminal point that engages operation from first adapter piece plays the starting point of interim joint operation, be difficult to produce joint defect on the hardware.Therefore can obtain high-quality conjugant.
The route that above-mentioned first adapter piece engages the friction stir in the operation and the terminal point that engages operation from above-mentioned first adapter piece are preferably guaranteed more than the external diameter of the shoulder of above-mentioned throw to the spacing distance of the route of the friction stir of the starting point of above-mentioned interim joint operation.That is the spacing distance of formed motion track was preferably guaranteed more than the external diameter of the shoulder of throw when formed motion track and the terminal point that makes throw engage operation from above-mentioned first adapter piece moved to the starting point of interim joint operation when, the starting point that makes throw engage operation from above-mentioned first adapter piece moved to terminal point.Thus, even the hardware side at throw the operation till the terminal point that engages operation from first adapter piece plays the starting point of interim joint operation has produced joint defect, this joint defect also is difficult to involve hardware, therefore can obtain high-quality conjugant.
Above-mentioned second adapter piece is engaged under the dextrorotary situation of using in the operation of throw, be preferably the right side that makes above-mentioned hardware be positioned at the throw direct of travel, but according to the position relation of the hardware and second adapter piece, hardware also may be positioned at the left side of direct of travel.In the case, as long as the route setting in the friction stir of the origin-to-destination that engages operation from above-mentioned second adapter piece is turned back a little, set starting point that above-mentioned second adapter piece engages operation then, turn back a little and the position of terminal point, make that at least the right side that above-mentioned hardware is positioned at the direct of travel of above-mentioned throw gets final product from the route of the friction stir of the above-mentioned above-mentioned terminal point of turning back a little.Thus, even march in the process of turning back a little at throw, hardware is positioned at the left side of throw direct of travel, produced joint defect in the hardware side, but since after carry out from turning back a little to the friction stir of terminal point, hardware is positioned at the right side of throw direct of travel, therefore can revise above-mentioned joint defect, obtains high-quality conjugant.
In addition, the throw that uses in making above-mentioned second adapter piece joint operation is under the situation of anticlockwise, be preferably the left side that makes above-mentioned hardware be positioned at the throw direct of travel, but according to the position relation of the hardware and second adapter piece, hardware also may be positioned at the right side of direct of travel.In the case, as long as the route setting in the friction stir of the origin-to-destination that engages operation from above-mentioned second adapter piece is turned back a little, set starting point that above-mentioned second adapter piece engages operation then, turn back a little and the position of terminal point, make that at least the left side that above-mentioned hardware is positioned at the direct of travel of above-mentioned throw gets final product from the route of the friction stir of the above-mentioned above-mentioned terminal point of turning back a little.
In addition, as long as will be set on above-mentioned second adapter piece, make the motion track of throw when the terminal point of interim joint operation moves to second adapter piece and engages the starting point of operation be formed at second adapter piece and get final product from the terminal point of above-mentioned interim joint operation engages the starting point of operation to above-mentioned second adapter piece the route of friction stir.Thus, the operation till the terminal point from interim joint operation plays the starting point of second adapter piece joint operation, be difficult to produce joint defect on the hardware, therefore can obtain high-quality conjugant.
The route of friction stir that engages the starting point of operation to above-mentioned second adapter piece from the terminal point of above-mentioned interim joint operation engages the route of the friction stir the operation with above-mentioned second adapter piece spacing distance is preferably guaranteed more than the external diameter of the shoulder of above-mentioned throw.That is the spacing distance of formed motion track is preferably guaranteed more than the external diameter of the shoulder of throw when, making throw formed motion track when the terminal point of interim joint operation moves to second adapter piece and engages the starting point of operation move to terminal point with the starting point that makes throw engage operation from above-mentioned second adapter piece.Thus, even the hardware side at throw the operation till the terminal point from interim joint operation plays the starting point of second adapter piece joint operation has produced joint defect, this joint defect also is difficult to involve hardware, therefore can obtain high-quality conjugant.
In the present invention, the starting position of the friction stir in above-mentioned formal joint operation forms bottom outlet, begins to carry out friction stir from above-mentioned bottom outlet and gets final product.That is, forming bottom outlet in the insertion precalculated position of stirring pin gets final product.Thus, can alleviate the load (extruding force) when the formal stirring pin that engages the formal joint usefulness throw that uses in the operation inserts, therefore can reduce the load of friction stir device, and, owing to also can accelerate the formal insertion speed that engages with throw, therefore can shorten the required activity duration of formal joint.
When bottom outlet is set, maximum diameter of hole with above-mentioned bottom outlet is decreased to less than the maximum outside diameter of the formal joint that uses in above-mentioned formal joint operation with the stirring pin of throw in advance, is pressed into above-mentioned bottom outlet then when making above-mentioned stirring pin rotation and gets final product.Thus, be connected at the formal shoulder that engages with throw before the surface of hardware etc., stir pin to be connected to the hole wall of bottom outlet and to produce frictional heat, so can shorten the required time of plasticity liquidation.
When bottom outlet is set, bottom outlet is formed at the docking section of above-mentioned first adapter piece and above-mentioned hardware, or the docking section that is formed at above-mentioned second adapter piece and above-mentioned hardware gets final product.Thus, when the formal stirring pin that engages with throw is pressed into bottom outlet, in the part inflow adapter piece and the small gap between the hardware of the metal of plasticity liquidation, the metal of plasticity liquidation is towards the loss in the above-mentioned gap mitigation that becomes after this, therefore is difficult to cause because of thickness is not enough joint defect.
In addition, be pressed into bottom outlet on the docking section that is arranged at adapter piece and hardware if will formally engage stirring pin with throw, the then power generation effect that adapter piece and hardware are pulled away from, may produce the gap between adapter piece and the hardware, therefore, when on the docking section of first adapter piece and hardware, bottom outlet being set, before being inserted above-mentioned bottom outlet with throw, above-mentioned formal joint will get final product by interim joint of the inner corner portion that above-mentioned hardware and above-mentioned first adapter piece form by welding in advance; Similarly, when on the docking section of second adapter piece and hardware, bottom outlet being set, will get final product by interim joint of the inner corner portion that above-mentioned hardware and above-mentioned second adapter piece form by welding in advance.
In addition, in the present invention, will engage the punching that forms when the interim joint that use in the operation breaks away from the stirring pin of throw as above-mentioned bottom outlet, or the aperture of above-mentioned punching is enlarged the back get final product as above-mentioned bottom outlet at above-mentioned second adapter piece.Thus, can omit or simplify the processing of bottom outlet, therefore can shorten the activity duration.
In addition, in the joint method that document 6 is disclosed, owing to use the formal throw that engages usefulness to engage temporarily, the therefore interim bond strength that engages may be excessive.Particularly under the very thick situation of hardware that desire engages, because the employed throw of formal joint maximizes, if therefore use this throw to engage temporarily, then not only the loss of throw is accelerated, although be that the preparation property of implementing for formal the joint engages, can apply very big load to the friction stir device too.And in document 6, because the transporting velocity of the transporting velocity (translational speed) of the throw must engage the time when setting for formal the joint is identical temporarily, so also existence can't be shortened the interim joint problem of required time.
In order to address the above problem.Be preferably and adopt the described joint method of claim 32.The described joint method of claim 32 comprises: the interim joint operation of hardware docking section each other being carried out friction stir; And the formal joint operation of the above-mentioned hardware docking section each other under the state of interim joint being carried out friction stir, this joint method is characterised in that, uses and implements above-mentioned interim joint operation with the more small-sized interim joint of throw with throw than the formal joint that uses in the above-mentioned formal joint operation.
Thus, can engage with the load littler than formal joint temporarily, therefore can reduce when interim the joint, to put on the load of friction stir device, also the translational speed (transporting velocity) that temporarily engages with throw can be accelerated to being higher than the translational speed of formal joint with throw, so can reduce required activity duration of interim joint and cost.
In addition, can carry out friction stir from the face side of hardware interim the joint in the operation, and carry out friction stir formal the joint in the operation from the rear side of hardware, also can carry out friction stir from the face side of hardware in interim joint operation and formal the joint in these two operations of operation.
In addition, in the interim joint operation in claim 32, both can carry out friction stir to above-mentioned docking section discontinuously, also can in the length range of above-mentioned docking section, carry out friction stir continuously.
In addition, when implementing formally to engage operation, under the situation of implementing water-cooled, in length range, hardware docking section is each other being carried out friction stir continuously from the face side of hardware interim the joint in the operation, and from the face side of hardware friction stir is being carried out in the docking section under the interim engagement state in the operation and get final product formal the joint.Under situation about temporarily engaging discontinuously, cooling water may enter between the hardware, make and produce oxide scale film on the composition surface, if but continuity ground engage temporarily, then cooling water is difficult to enter between the hardware, therefore can improve the quality at junction surface.
In the present invention, the starting position of the friction stir in above-mentioned formal joint operation forms bottom outlet, begins to carry out friction stir from above-mentioned bottom outlet and gets final product.That is, forming bottom outlet in the formal insertion precalculated position that engages the stirring pin of using throw gets final product.Thus, load (extruding force) in the time of can alleviating formal joint and insert with the stirring pin of throw therefore can reduce to put on the load of friction stir device, and, owing to can accelerate the formal insertion speed that engages with throw, therefore can shorten the required activity duration of formal joint.
When bottom outlet was set, the maximum diameter of hole with above-mentioned bottom outlet was decreased to less than the maximum outside diameter of above-mentioned formal joint with the stirring pin of throw in advance, is pressed into above-mentioned bottom outlet then when making above-mentioned stirring pin rotation and gets final product.Thus, be connected at the formal shoulder that engages with throw before the surface of hardware etc., stir pin to be connected to the hole wall of bottom outlet and to produce frictional heat, so can shorten the required time of plasticity liquidation.
In addition, in the present invention, the punching that forms when the stirring pin that makes above-mentioned interim joint with throw is broken away from is as above-mentioned bottom outlet, or will above-mentioned punching enlarges the back and get final product as above-mentioned bottom outlet.Thus, can omit or simplify the processing of bottom outlet, therefore can shorten the activity duration.
In addition, make under the dextrorotary situation of formal joint usefulness throw, may produce tunnel defective etc. in the formal left side that engages with the direct of travel of throw, make it under the situation of anticlockwise, right side at direct of travel may produce the tunnel defective, therefore, and for cutting off above-mentioned tunnel defective, can implement repair procedure, this repair procedure is the operation of the plastification zone that forms by above-mentioned formal joint operation being carried out friction stir.In above-mentioned repair procedure, make under the dextrorotary situation of above-mentioned formal joint usefulness throw, carry out friction stir to being positioned at above-mentioned formal joint with the above-mentioned plastification zone in the direct of travel left side of throw, making above-mentioned formal joint use throw under the situation of anticlockwise, carry out friction stir with the above-mentioned plastification zone on the direct of travel right side of throw to being positioned at above-mentioned formal joint.
In above-mentioned repair procedure, the route of the friction stir in the above-mentioned formal joint operation carries out friction stir continuously and gets final product.Thus,, also can positively cut off this tunnel defective, therefore be difficult to produce joint defect even form continuously under the situation of tunnel defective at the route of the friction stir in formal joint operation.
In addition, when stating repair procedure on the implementation, can use than above-mentioned formal joint with the more small-sized repairing throw of throw.Thus, can prevent that the plastification zone from expanding to more than the required size.
If the starting position or the end position of friction stir are set on the adapter piece of the side that is disposed at the hardware docking section each other that desire engages, then be accompanied by moving of throw, the oxide scale film that is present on the bearing surface of hardware and adapter piece is involved in the plastification zone that is formed on the hardware, therefore may produce joint defect.
In order to address the above problem, to be preferably and to adopt the described joint method of claim 42.The described joint method of claim 42 comprises: the formal joint operation of hardware docking section each other being carried out friction stir; And the repair procedure of the plastification zone that forms by above-mentioned formal joint operation being carried out friction stir on above-mentioned hardware, this joint method is characterised in that, in above-mentioned formal joint operation, the starting position or the end position of friction stir are set on the adapter piece of the side that is disposed at above-mentioned hardware docking section each other, in above-mentioned repair procedure, at least to carrying out friction stir with the above-mentioned plastification zone of above-mentioned adapter piece adjacency.
Thus,, also can this oxide scale film be cut off, therefore be difficult to produce joint defect by the friction stir in the repair procedure even the oxide scale film that is present on the bearing surface of hardware and adapter piece is involved in the plastification zone that is formed on the hardware.
In addition, in above-mentioned formal joint operation, the adapter piece that is disposed at the side of above-mentioned hardware docking section each other is provided with under the situation of starting position of friction stir, in above-mentioned repair procedure, make above-mentioned formal joint carry out friction stir to being positioned at above-mentioned formal joint with the above-mentioned plastification zone in the direct of travel of throw left side under the dextrorotary situation, making above-mentioned formal joint under the situation of anticlockwise, carry out friction stir with the above-mentioned plastification zone on the direct of travel right side of throw and get final product being positioned at above-mentioned formal joint with throw with throw.
In addition, in above-mentioned formal joint operation, the adapter piece that is disposed at the side of above-mentioned hardware docking section each other is provided with under the situation of end position of friction stir, in above-mentioned repair procedure, make above-mentioned formal joint carry out friction stir to being positioned at above-mentioned formal joint with the above-mentioned plastification zone on the direct of travel right side of throw under the dextrorotary situation, making above-mentioned formal joint under the situation of anticlockwise, carry out friction stir with the above-mentioned plastification zone in the direct of travel of throw left side and get final product being positioned at above-mentioned formal joint with throw with throw.
In the present invention, be preferably use and implement above-mentioned repairing work with the more small-sized repairing of throw with throw than above-mentioned formal joint.Thus, can prevent that the plastification zone from expanding to more than the required size.
In addition, the route of the friction stir that is disclosed in the document 2 is the route for friction stir seamlessly being carried out in the whole surface of the interface of the bottom surface that is formed at the recess on the docking section and connecting plate and setting, not only for cutting off the route that the tunnel defective is set, therefore be that main purpose is carried out under the situation of friction stir to cut off the tunnel defective, if set route as the friction stir that is disclosed in the document 2, then not only the displacement of throw increases to more than the Len req, and the number of times of the direction of throw conversion also increases.That is, being under the situation of main purpose to cut off the tunnel defective, if directly continue to use the route of the friction stir of document 2, then useless action becomes many in the action of throw, and utilization rate may variation.
In order to address the above problem, to be preferably and to adopt the described joint method of claim 46.The described joint method of claim 46 comprises: the formal joint operation of hardware docking section each other being carried out friction stir; And crosscut repair procedure, in this crosscut repair procedure, mobile throw, make it carry out repeatedly crosscut to the plastification zone that on above-mentioned hardware, forms by formal joint operation, by this friction stir is carried out in above-mentioned plastification zone, this joint method is characterised in that, set the route of the friction stir in the above-mentioned crosscut repair procedure, be spaced from each other at interval on the route of the feasible friction stir of a plurality of plastifications again zone in above-mentioned formal joint operation that in above-mentioned plastification zone, forms by above-mentioned crosscut repair procedure.
Among the present invention, carry out friction stir,, also this tunnel defective can be cut off even therefore be formed with the tunnel defective along this plastification zone with the form of the plastification zone crosscut that will form by formal joint operation.In addition, as described herein, if a plurality of plastifications again zone is spaced from each other at interval on the route that formally engages the friction stir in the operation, then with formal the joint form again the situation in plastification zone in the whole plastification zone that forms in the operation and compare, the number of times of the crosscut number of times of throw and direction conversion tails off, the result, the length overall of the route of the friction stir in the crosscut repair procedure shortens, therefore useless action reduces in the action of throw, and can cut off the tunnel defective efficiently.
In the present invention, be preferably make adjacent above-mentioned plastification again zone the interval more than the width dimensions in above-mentioned plastification again zone.Thus, action useless in the action of throw further reduces, and can cut off the tunnel defective more efficiently.
In addition, be provided with on the friction stir route in above-mentioned crosscut repair procedure under many intersecting routes and the situation with the end transferring route connected to one another of the homonymy of adjacent above-mentioned intersecting routes in the above-mentioned plastification of crosscut zone, above-mentioned transferring route is preferably parallel with the route of friction stir in the above-mentioned formal joint operation.Thus, compare with respect to the situation that the route of the friction stir in the formal joint operation tilts with transferring route, because the distance of transferring route shortens, so useless action further reduces in the action of throw, can cut off the tunnel defective more efficiently.
Under the above-mentioned transferring route situation parallel with the friction stir route in the above-mentioned formal joint operation, be preferably the position of setting above-mentioned transferring route, make that the lateral margin by the above-mentioned plastification zone that forms in the plastification zone that above-mentioned throw moved along above-mentioned transferring route form and the above-mentioned formal joint operation contacts.Thus, the length of the external diameter sum of the width dimensions that the length of intersecting routes is reached be equivalent to formally engage the plastification zone that forms in the operation and the shoulder of throw, therefore useless action further reduces in the action of throw, can cut off the tunnel defective more efficiently.
In the present invention, be preferably use and implement above-mentioned crosscut repair procedure than the more small-sized throw of throw that uses in the above-mentioned formal joint operation.Thus, can prevent that the plastification zone (plastification zone again) that forms from expanding to more than the required size in the crosscut repair procedure.
In addition, formal engage the joint defect that throw caused that uses in the operation be formed at mostly play from its upper end of stirring pin its length 1/3 till scope in, therefore the length of the stirring pin of the throw that uses in the crosscut repair procedure is preferably more than 1/3 of length that engages the stirring pin of the throw that uses in the operation formal, if but greater than 1/2, then the plastification zone may be expanded to more than the required size, therefore is preferably below 1/2.
In the friction stir method of document 9, though stir pin for cylindric, and the maximum diameter of hole of bottom outlet is less than the external diameter of above-mentioned stirring pin, thus, because the lower surface of stirring pin is connected to the surface of hardware, therefore there is the bigger problem of resistance of pressing in that is pressed into initial stage.
In order to address the above problem, to be preferably and to adopt the described friction stir method of claim 52.The described friction stir method of claim 52 is the method that forms bottom outlet in the starting position of friction stir, begins to carry out friction stir from above-mentioned bottom outlet, this friction stir method is characterised in that, in advance the stirring pin of throw is made the circular cone shape of tip, make the minimum outer diameter of the maximum diameter of hole of above-mentioned bottom outlet greater than above-mentioned stirring pin, and make the maximum outside diameter of the maximum diameter of hole of above-mentioned bottom outlet, when making above-mentioned stirring pin rotation, be pressed into above-mentioned bottom outlet then less than above-mentioned stirring pin.
According to this friction stir method, the leading section of stirring pin that is the circular cone shape of tip enters bottom outlet, and the side face (side) that has entered the stirring pin of bottom outlet is connected to the hole wall of bottom outlet, so metal begins the plasticity liquidation from the hole wall side.If above-mentioned state, then can when the metal that utilizes the side face that stirs pin with the plasticity liquidation arranges, will stir pin and be pressed into, so can reduce to be pressed into the resistance of pressing in of initial stage.
In addition, if the maximum diameter of hole of bottom outlet is less than 50% of the maximum outside diameter that stirs pin, then resistance of pressing in reduces degree and may descend, in addition, if the maximum diameter of hole of bottom outlet surpasses the maximum outside diameter 90% that stirs pin, then stir the amount of selling the frictional heat that is produced and reduce, plasticity liquidation zone reduces, the heat input quantity reduces, so the load of throw when moving increase, and is easy to generate defective.Therefore, in the present invention, the maximum diameter of hole of above-mentioned bottom outlet be preferably above-mentioned stirring pin maximum outside diameter 50～90%.
In addition, if the degree of depth of bottom outlet is more than the required degree of depth, then required time of the processing of bottom outlet is elongated, therefore the degree of depth of above-mentioned bottom outlet is preferably less than the length of above-mentioned stirring pin, if but the degree of depth of bottom outlet is less than 70% of the length that stirs pin, then resistance of pressing in reduces degree and may descend, in addition, if the degree of depth of bottom outlet is above 90% of the length that stirs pin, then stir the amount of selling the frictional heat that is produced and reduce, plasticity liquidation zone reduces, and the heat input quantity reduces, it is big that load when therefore throw moves becomes, and is easy to generate defective.Therefore, in the present invention, the degree of depth of above-mentioned bottom outlet be preferably above-mentioned stirring pin length 70～90%.
In addition, if the volume of bottom outlet is more than required volume, then city, plasticity liquidation district diminishes, resistance of pressing in when the stirring pin is pressed into may increase, therefore the volume of above-mentioned bottom outlet is preferably less than the volume of above-mentioned stirring pin, if but the volume of bottom outlet is less than 40% of the volume that stirs pin, then resistance of pressing in reduces degree and may descend, in addition, if the volume of bottom outlet, then stirs the amount minimizing of selling the frictional heat that is produced above 80% of the volume that stirs pin, plasticity liquidation zone reduces, the heat input quantity reduces, so the load of throw when moving become big, is easy to generate defective.Therefore, in the present invention, the volume of above-mentioned bottom outlet be preferably above-mentioned stirring pin volume 40～80%.
In addition, insert when stirring pin in the starting position of friction stir, owing to the plastic deformation liquidation that must make under the normal temperature state, therefore inserting operation needs the time.
In order to address the above problem, to be preferably and to adopt the described friction stir method of claim 58.The described friction stir method of claim 58 is characterised in that the rotary speed of the above-mentioned throw when inserting the stirring pin of throw in the starting position of friction stir is higher than makes the rotary speed of above-mentioned throw from the above-mentioned throw of above-mentioned starting position when the end position of friction stir moves.
Thus, the situation identical with the rotary speed (rotary speed during insertion) of inserting the throw when stirring pin in the starting position of friction stir and the rotary speed that makes throw from the throw of this starting position when the end position of friction stir moves when mobile (rotary speed) compared, shortened, therefore the insertion operation that can promptly stir pin the required time of plastic deformation liquidation in the starting position of friction stir.
In addition, if 3.0 times of the rotary speed of the rotary speed when inserting when mobile, then the heat to the metal input increases, the temperature of metal rise to temperature required more than, therefore be preferably below 3.0 times.In addition, if 1.5 times of the rotary speed of the rotary speed when inserting when mobile, the effect that then shortens the activity duration diminishes, and therefore is preferably more than 1.5 times.
Make and stir pin when the end position of friction stir breaks away from, stir on the pin because the metal of plasticity liquidation is wrapped in, the disengaging resistance (drawing resistance) that therefore stirs pin increases, and the separating operation that stirs pin needs the time.
In order to address the above problem, to be preferably and to adopt the described friction stir method of claim 60.The described friction stir method of claim 60 is characterised in that, the rotary speed of the above-mentioned throw of stirring pin when above-mentioned end position breaks away from of the throw of the end position that arrives friction stir is higher than makes the rotary speed of above-mentioned throw from the above-mentioned throw of starting position when above-mentioned end position moves of friction stir.
Thus, the situation identical with the rotary speed that makes the rotary speed (rotary speed during disengaging) that stirs the throw of pin when the end position of friction stir breaks away from when mobile compared, the disengaging resistance that stirs pin reduces, and therefore can promptly stir the separating operation of pin at the end position of friction stir.
In addition, if 3.0 times of the rotary speed of the throw of the rotary speed when breaking away from when mobile, then the heat to the metal input increases, the temperature of metal rise to temperature required more than, therefore be preferably below 3.0 times.In addition, if 1.5 times of the rotary speed of the rotary speed when breaking away from when mobile, the effect that then shortens the activity duration diminishes, and therefore is preferably more than 1.5 times.
Utilize joint method of the present invention, can improve the air-tightness and the watertightness at junction surface.And, utilizing joint method of the present invention and friction stir method, can make to engage operating efficiency, rapidization.
The simple declaration of accompanying drawing
Fig. 1 is the figure of the configuration of the hardware, first adapter piece and second adapter piece that are used for illustrating embodiment one, (a) is stereogram, (b) is plane, (c) is the cutaway view along I-I line of (b), (d) is the cutaway view along II-II line of (b).
Fig. 2 (a) is used to illustrate the side view of interim joint with throw, (b) is to be used to illustrate the side view of formal joint with throw.
It (b) is to be used to illustrate the pattern side view that inserts the situation of starting position with throw with engage temporarily that Fig. 3 (a) reaches.
Fig. 4 is that first adapter piece that is used for illustrating embodiment one engages operation, engages the plane that the operation and second adapter piece engage operation temporarily.
Fig. 5 (a) is the cutaway view along III-III line of Fig. 4, and (b) reaching (c) is the first formal cutaway view that engages operation that is used for illustrating embodiment one.
Fig. 6 is used for illustrating the figure that carries out the zone of friction stir in first repair procedure of embodiment one, (a) is plane, (b) is the cutaway view along IV-IV line of (a).
Fig. 7 is the plane that is used for illustrating first repair procedure of embodiment one.
Fig. 8 is the plane that is used for illustrating the first crosscut repair procedure of embodiment one.
Fig. 9 is the cutaway view along V-V line of Fig. 8.
Figure 10 (a)～(c) is the second formal cutaway view that engages operation that is used for illustrating embodiment one.
Figure 11 (a) represents the formal joint that uses in the first formal joint operation side view of throw, is that expression second formally engages the side view that the formal joint that uses in the operation is used throw (b).
Figure 12 is used for illustrating that first adapter piece of embodiment one engages the plane of the variation of operation and second adapter piece joint operation.
Figure 13 is the plane of variation that is used for illustrating the repair procedure of embodiment one.
Figure 14 is the plane of variation that is used for illustrating the crosscut repair procedure of embodiment one,
Figure 15 is the figure of the configuration of the hardware, first adapter piece and second adapter piece that are used for illustrating embodiment two, (a) is stereogram, (b) is plane.
Figure 16 (a) and (b) be the figure that is used for illustrating first front travel of embodiment two.
Figure 17 is the plane of variation that is used for illustrating first front travel of embodiment two.
Figure 18 is the first formal plane that engages operation that is used for illustrating embodiment two.
It (b) is the first formal plane that engages the variation of operation that is used for illustrating embodiment two that Figure 19 (a) reaches.
Figure 20 (a) and (b) be the plane that is used for illustrating first repair procedure of embodiment two.
Figure 21 is the plane that is used for illustrating the first crosscut repair procedure of embodiment two.
Figure 22 is the second formal cutaway view that engages operation that is used for illustrating embodiment two.
Figure 23 is used for illustrating that first adapter piece of embodiment two engages the plane of the variation of operation and second adapter piece joint operation.
Label declaration
1 hardware
2 first adapter pieces
3 second adapter pieces
J1～J3 docking section
The interim joint of A used throw
The A1 shoulder
A2 stirs pin
The formal joint of B used throw
The B1 shoulder
B2 stirs pin
C repairs and uses throw
D crosscut throw
The P1 bottom outlet
W1, W2 plastification zone
W3 is the plastification zone again
The best mode that carries out an invention
Implementing best mode of the present invention is the hardware joint method each other that utilizes friction stir, exemplify following joint method: hardware docking section is each other carried out as after the interim friction stir that engages, the docking section under the interim engagement state is carried out the friction stir that engages as formal.
[embodiment one]
In embodiment one, as shown in Figure 1, exemplify hardware 1,1 with the interconnective situation of linearity.
At first, the hardware 1,1 that desire is engaged is elaborated, and employed first adapter piece 2 and second adapter piece 3 are elaborated when this hardware 1,1 is engaged.
But hardware 1 is made of the metal material of friction stir such as aluminium, aluminium alloy, copper, copper alloy, titanium, titanium alloy, magnesium, magnesium alloy.In the present embodiment, a hardware 1 and other hardware 1 are made of the metal material of same composition.Shape, the size of hardware 1,1 do not have special restriction, but preferably the gauge with docking section J1 place is identical at least.
First adapter piece 2 and second adapter piece 3 are the adapter pieces that dispose with the form that the docking section J1 with hardware 1,1 clamps, add respectively on hardware 1,1, the seam (boundary line) of hardware 1,1 that comes across side 14 sides of hardware 1 is hidden.The material of first adapter piece 2 and second adapter piece 3 does not have special restriction, but in the present embodiment, is formed by the metal material with hardware 1 same composition.In addition, shape, the size of first adapter piece 2 and second adapter piece 3 do not have special restriction yet, but in the present embodiment, its gauge are made as identical with the gauge of the hardware 1 at docking section J1 place.
Then, with reference to Fig. 2, throw A (hereinafter referred to as " the interim joint used throw A ") that uses in interim joint the and the throw B (hereinafter referred to as " the formal joint used throw B ") that uses in formal the joint are elaborated.
Interim joint shown in Fig. 2 (a) with throw A by tool steel geometric ratio hardware 1 more the metal material of hard constitute, comprise stirring pin (probe) A2 on cylindrical shoulder A1 and the outstanding lower surface A11 that is arranged at this shoulder A1.Interim engage size with throw A, shape, but use throw B (with reference to Fig. 2 (b)) more small-sized than the formal joint that uses in the described later first formal joint operation at least as long as wait corresponding to the material of hardware 1 and thickness and to set.Thus, can engage with the load littler than formal joint temporarily, therefore put on the load of friction stir device in the time of can reducing interim joint, and, owing to can make interim joint be higher than the translational speed of formal joint, therefore can reduce required activity duration of interim joint and cost with throw B with the translational speed (transporting velocity) of throw A.
The lower surface A11 of shoulder A1 plays the metal of pushing down the plasticity liquidation, the position that prevents the effect that it disperses towards periphery, in the present embodiment, is configured as concave shape.The external diameter X of shoulder A1 1Size do not have special restriction, but in the present embodiment less than the formal external diameter Y that engages with the shoulder B1 of throw B 1
Stirring pin A2 hangs down from the central authorities of the lower surface A11 of shoulder A1, in the present embodiment, is configured as the circular cone shape of tip.In addition, on the side face that stirs pin A2, be formed with and be carved into spiral helicine agitator.Stirring the size of the external diameter of pin A2 does not have special restriction, but in the present embodiment, maximum outside diameter (footpath, upper end) X 2Less than formal maximum outside diameter (footpath, the upper end) Y that engages with the stirring pin B2 of throw B 2, and minimum outer diameter (footpath, lower end) X 3Less than the minimum outer diameter that stirs pin B2 (footpath, lower end) Y 3Stir the length L of pin A2 ABe preferably the hardware 1 that docking section J1 (with reference to Fig. 1 (a)) locates thickness t (with reference to Fig. 2 (b)) 3～15%, at least less than the formal length L that engages with the stirring pin B2 of throw B 1
Formal joint shown in Fig. 2 (b) with throw B by tool steel geometric ratio hardware 1 more the metal material of hard constitute, comprise stirring pin (probe) B2 on cylindrical shoulder B1 and the outstanding lower surface B11 that is arranged at this shoulder B1.
The lower surface B11 of shoulder B1 uses throw A identical with interim the joint, is configured as concave shape.Stirring pin B2 hangs down from the central authorities of the lower surface B11 of shoulder B1, in the present embodiment, is configured as the circular cone shape of tip.In addition, on the side face that stirs pin B2, be formed with and be carved into spiral helicine agitator.Stir the length L of pin B2 1Be preferably more than 1/2 below 3/4 of the thickness t that is set at the hardware 1 that docking section J1 (with reference to Fig. 1 (a)) locates, be more preferably to set for and satisfy 1.01≤2L 1The relation of/t≤1.10.
Below, the joint method in the present embodiment is elaborated.Joint method in the present embodiment comprises: (1) preparatory process, (2) first front travels, (3) first formal operation, (4) first repair procedure, (5) first crosscut repair procedure, (6) second front travels, (7) second formal operation, (8) second repair procedure, (9) the second crosscut repair procedure of engaging of engaging.In addition, first front travel, first formal operation, first repair procedure and the first crosscut repair procedure of engaging are the operations of implementing from surface 12 sides of hardware 1, and second front travel, second formal operation, second repair procedure and the second crosscut repair procedure of engaging are the operations of implementing from the back side 13 sides of hardware 1.
(1) preparatory process:
With reference to Fig. 1 preparatory process is described.Preparatory process is to prepare the hardware 1,1 of desire joint and the operation that is used to be provided with the starting position of friction stir and the abutting member of end position (first adapter piece 2 and second adapter piece 3), in the present embodiment, it comprises: the butt joint operation that the hardware 1,1 that desire is engaged docks; Dispose the adapter piece arrangement step of first adapter piece 2 and second adapter piece 3 in the both sides of the docking section J1 of hardware 1,1; And the welding operation that first adapter piece 2 and second adapter piece 3 is engaged in temporarily hardware 1,1 by welding.
In the butt joint operation, shown in Fig. 1 (c), make the side 11 of a hardware 1 and side 11 driving fits of another hardware 1, and the surface 12 that makes a hardware 1 is in the same plane with the surface 12 of another hardware 1, and the back side 13 that makes hardware 1 on one side is in the same plane with the back side 13 of the hardware 1 of another side.
In the adapter piece arrangement step, shown in Fig. 1 (b), first adapter piece 2 is disposed at docking section J1 one distolateral of hardware 1,1, make its bearing surface 21 be connected to the side 14,14 of hardware 1,1, and it is distolateral that second adapter piece 3 is disposed at another of docking section J1, makes its bearing surface 31 be connected to the side 14,14 of hardware 1,1.At this moment, shown in Fig. 1 (d), the surface 22 of first adapter piece 2 and the surface 32 of second adapter piece 3 and the surface 12 of hardware 1 are in the same plane, and the back side 23 of first adapter piece 2 and the back side 33 of second adapter piece 3 and the back side 13 of hardware 1 are in the same plane.
In the welding operation, as Fig. 1 (a) and (b), inner corner portion 2a, the 2a that will form by the hardware 1 and first adapter piece 2 (i.e. bight 2a, the 2a that forms by the side 24 of the side 14 of hardware 1 and first adapter piece 2) welding, thereby hardware 1 is engaged with first adapter piece 2, inner corner portion 3a, the 3a that will form by the hardware 1 and second adapter piece 3 (i.e. bight 3a, the 3a that forms by the side 34 of the side 14 of hardware 1 and second adapter piece 3) welding, thus hardware 1 is engaged with second adapter piece 3.In addition, both can on the whole total length of inner corner portion 2a, 3a, implement welding continuously, also can implement welding discontinuously.
After preparatory process finished, on the pallet of not shown friction stir device, not shown anchor clamps such as use clip limited, and it can't be moved with hardware 1,1, first adapter piece 2 and second adapter piece, 3 mountings.In addition, under the situation of omitting the welding operation, on the pallet of not shown friction stir device, implement butt joint operation and adapter piece arrangement step.
(2) first front travels:
First front travel is that in the present embodiment, it comprises: first adapter piece that hardware 1,1 is engaged with the docking section J2 of first adapter piece 2 engages operation in the first formal operation of carrying out before the operation that engages; With the interim interim joint operation that engages of the docking section J1 of hardware 1,1; Second adapter piece that hardware 1,1 is engaged with the docking section J3 of second adapter piece 3 engages operation; And the bottom outlet that forms bottom outlet in the first formal starting position that engages the friction stir in the operation forms operation.
In first front travel of present embodiment, as shown in Figure 4, interim a joint is moved with throw A, form the motion track (bead) of unicursal, thereby docking section J1, J2, J3 are carried out friction stir continuously.That is, make the starting position S that inserts friction stir PInterim joint under situation about not breaking away from, do not moving to end position E with the stirring pin A2 (with reference to Fig. 2 (a)) of throw A midway PThereby, implement first adapter piece continuously and engage operation, engage the operation and second adapter piece temporarily and engage operation.In addition, in the present embodiment, the starting position S of friction stir is set on first adapter piece 2 P, on second adapter piece 3, end position E is set P, but do not represent starting position S PWith end position E PThe position limit.
With reference to Fig. 3 and Fig. 4 the order of the friction stir in first front travel of present embodiment is elaborated.
At first, shown in Fig. 3 (a), make interim joint be positioned at starting position S on the appropriate location that is arranged at first adapter piece 2 with throw A PDirectly over, then, interim joint is descended to the right rotation limit with throw A limit, sell A2 and be pressed on starting position S thereby will stir PThe interim joint with the rotary speed of throw A according to stirring the size of selling A2, shape, waited by the material of the hardware 1 of friction stir etc. and thickness and set, but in most cases be set in the scope of 500～2000 (rpm).
Contact with the surface 22 of first adapter piece 2 if stir pin A2,, shown in Fig. 3 (b), stir pin A2 and insert first adapter piece 2 then because of frictional heat causes stirring pin A2 plastic deformation liquidation on every side.The interim joint with the insertion speed (decrease speed) of throw A according to stirring size, the shape of selling A2, being used to be provided with starting position S PThe material of member and thickness wait and set, but in most cases be set in the scope of 30～60 (mm/ branches).
The integral body that stirs pin A2 enters first adapter piece 2, and the whole surface of the lower surface A11 of shoulder A1 is with after the surface 22 of first adapter piece 2 contacts, as shown in Figure 4, while interim joint is relatively moved with the starting point s2 that throw A rotates to first adapter piece joint operation.
The interim joint with the translational speed (transporting velocity) of throw A according to stirring the size of selling A2, shape, waited by the material of the hardware 1 of friction stir etc. and thickness and set, but in most cases be set in the scope of 100～1000 (mm/ branches).The rotary speed of interim rotary speed when engaging with throw A mobile when inserting is identical or lower than it.In addition, when interim joint is moved with throw A, though the axis that can make shoulder A1 is with respect to the rear side slight inclination of perpendicular towards direct of travel, if but do not tilt, but being vertical state, the then interim direction conversion that engages with throw A becomes easily, can do complicated action.If interim joint is moved with throw A, then it stirs pin A2 metal plasticity liquidation successively on every side, and on the position away from stirring pin A2, the metal of plasticity liquidation solidifies once again.
Interim joint is relatively moved with throw A, engage to first adapter piece carry out friction stir continuously till the starting point s2 of operation after, at starting point s2 interim joint is broken away from throw A, engage operation but directly be transferred to first adapter piece.
In first adapter piece engages operation, the docking section J2 of first adapter piece 2 and hardware 1 is carried out friction stir.Particularly,, interim joint is relatively moved along this route with throw A, by this docking section J2 is carried out friction stir at the last route of setting friction stir of the seam (boundary line) of the hardware 1,1 and first adapter piece 2.In addition, in the present embodiment, interim joint is broken away from midway with throw A, but carry out friction stir continuously to terminal point e2 from the starting point s2 of first adapter piece joint operation.
In addition, make under the dextrorotary situation of interim joint usefulness throw A, owing to may produce small joint defect in the interim left side that engages with the direct of travel of throw A, therefore be preferably setting first adapter piece and engage the starting point s2 of operation and the position of terminal point e2, make hardware 1,1 be positioned at the right side of interim joint with the direct of travel of throw A.Thus, be difficult to produce joint defect, therefore can obtain high-quality conjugant in hardware 1 side.
In addition, make interim joint usefulness throw A under the situation of anticlockwise, owing to may produce small joint defect on the interim right side that engages with the direct of travel of throw A, therefore be preferably setting first adapter piece and engage the starting point of operation and the position of terminal point, make hardware 1,1 be positioned at the left side of interim joint with the direct of travel of throw A.Particularly, though omit diagram,, on the position that makes interim joint starting point s2 during to right rotation, terminal point is set and gets final product with throw A as long as on the position that makes interim joint terminal point e2 during to right rotation, starting point is set with throw A.
In addition, if the interim stirring pin A2 that engages with throw A enters docking section J2, the then power generation effect that hardware 1 and first adapter piece 2 are pulled away from, but owing to will engage by the inner corner portion 2a that the hardware 1 and first adapter piece 2 form by welding, so can not produce the space between the hardware 1 and first adapter piece 2 temporarily.
After engaging the terminal point e2 that arrives first adapter piece joint operation with throw A temporarily, do not finish friction stir at terminal point e2, but carry out friction stir continuously, till the starting point s1 of interim joint operation, directly be transferred to interim joint operation then.Promptly, the terminal point e2 that engages operation from first adapter piece does not make interim joint break away from throw A till playing the starting point s1 of interim joint operation, but proceed friction stir, be under the situation that interim joint is broken away from throw A at starting point s1 then and be transferred to interim joint operation.Thus, need not engage separating operation at the terminal point e2 of first adapter piece joint operation with throw A temporarily, need not engage the insertion operation of using throw A temporarily yet, therefore can make preparatory joint efficiency of operationization, rapidization at the interim starting point s1 that engages operation.
In the present embodiment, the terminal point e2 that will engage operation from first adapter piece is set on first adapter piece 2 to the route of the friction stir of the starting point s1 of interim joint operation, is formed on first adapter piece 2 thereby will engage with the motion track of throw A when the terminal point e2 of first adapter piece joint operation moves to the starting point s1 of interim joint operation temporarily.Thus, the operation till the terminal point e2 that engages operation from first adapter piece plays the starting point s1 of interim joint operation, be difficult for producing joint defect on the hardware 1,1, therefore can obtain high-quality conjugant.
In addition, the terminal point e2 that engages operation from first adapter piece engages the parallel part of the route of the friction stir in the operation engages the route of the friction stir in the operation with first adapter piece spacing distance d with first adapter piece to the route of the friction stir of the starting point s1 of interim joint operation 2Guarantee at the external diameter X of interim joint with the shoulder A1 of throw A 1More than (with reference to Fig. 2 (a)).That is, interim formed motion track and the interim spacing distance d that engages with throw A formed motion track when the terminal point e2 of first adapter piece joint operation moves to the starting point s1 of interim joint operation when engaging the starting point s2 that engages operation from first adapter piece with throw A and moving to terminal point e2 2Guarantee at the external diameter X of interim joint with the shoulder A1 of throw A 1More than.Thus, the operation till the terminal point e2 that engages operation from first adapter piece plays the starting point s1 of interim joint operation, even produced joint defect in interim hardware 1 side that engages with throw A, this joint defect also is difficult to involve hardware 1, therefore can obtain high-quality conjugant.
Engage in the operation interim, the docking section J1 (with reference to Fig. 1 (a)) of hardware 1,1 is carried out friction stir.Particularly,, interim joint is relatively moved along this route with throw A, on the whole total length of docking section J1, carry out friction stir by this continuously at the last route of setting friction stir of the seam (boundary line) of hardware 1,1.In addition, in the present embodiment, interim joint is broken away from midway with throw A, but carry out friction stir continuously to terminal point e1 from the starting point s1 of interim joint operation.Thus, do not need to engage the interim joint separating operation of throw A in the operation fully temporarily, so can make preparatory joint operation efficient activity, rapidization further.
After interim joint arrives the terminal point e1 that temporarily engages operation with throw A, do not finish friction stir at terminal point e1, but carry out friction stir continuously, and engage up to second adapter piece till the starting point s3 of operation, directly be transferred to second adapter piece then and engage operation.Promptly, till the terminal point e1 of interim joint operation plays the starting point s3 that second adapter piece engages operation, interim joint is broken away from throw A, but proceed friction stir, be at starting point s3 then and be transferred to second adapter piece under the situation that interim joint is broken away from throw A and engage operation.Thus, need not engage the separating operation of using throw A at the interim terminal point e1 that engages operation temporarily, need not engage insertion operation at the starting point s3 of second adapter piece joint operation temporarily yet, therefore can make preparatory joint operation efficient activity, rapidization further with throw A.
In the present embodiment, the friction stir route that will engage the starting point s3 of operation from the terminal point e1 of interim joint operation to second adapter piece is set on second adapter piece 3, is formed on second adapter piece 3 thereby will engage with the motion track of throw A when the terminal point e1 of interim joint operation moves to the starting point s3 of second adapter piece joint operation temporarily.Thus, the operation till the terminal point e1 from interim joint operation plays the starting point s3 of second adapter piece joint operation, on hardware 1, be difficult to produce joint defect, therefore can obtain high-quality conjugant.
In addition, engage engaging the parallel part of the route of the friction stir in the operation engages the route of the friction stir in the operation with second adapter piece spacing distance d3 with second adapter piece described later and guarantee the external diameter X that engages the shoulder A1 that uses throw A interim the route of friction stir of starting point s3 of operation from the terminal point e1 of interim joint operation to second adapter piece 1More than (with reference to Fig. 2 (a)).That is, the interim joint with throw A formed motion track when the terminal point e1 of interim joint operation moves to second adapter piece and engages the starting point s3 of operation guaranteed at the joint external diameter X of the shoulder A1 of throw A temporarily with engaging with throw A spacing distance d3 of formed motion track when the starting point s3 of second adapter piece joint operation moves to terminal point e3 temporarily 1More than.Thus, the operation till the terminal point e1 of interim joint operation plays the starting point s3 that second adapter piece engages operation, even produced joint defect in interim hardware 1 side that engages with throw A, this joint defect also is difficult to involve hardware 1, therefore can obtain high-quality conjugant.
In second adapter piece engages operation, the docking section J3 of the hardware 1,1 and second adapter piece 3 is carried out friction stir.Particularly,, interim joint is relatively moved along this route with throw A, by this docking section J3 is carried out friction stir at the last route of setting friction stir of the seam (boundary line) of the hardware 1,1 and second adapter piece 3.In addition, in the present embodiment, the starting point s3 from second adapter piece joint operation midway under the situation that interim joint is broken away from throw A carries out friction stir continuously to terminal point e3.
In addition,, therefore set second adapter piece and engage the starting point s3 of operation and the position of terminal point e3, make hardware 1,1 be positioned at the right side of interim joint with the direct of travel of throw A owing to make interim joint use throw A to right rotation.Thus, be difficult to produce joint defect, therefore can get high-quality conjugant in hardware 1 side.In addition, make interim joint use throw A under the situation of anticlockwise, be preferably setting second adapter piece and engage the starting point of operation and the position of terminal point, making hardware 1,1 be positioned at the left side of interim joint with the direct of travel of throw A.Particularly, though omit diagram,, on the position that makes interim joint starting point s3 during to right rotation, terminal point is set and gets final product with throw A as long as on the position that makes interim joint terminal point e3 during to right rotation, starting point is set with throw A.
In addition, if the interim stirring pin A2 (with reference to 2a figure) that engages with throw A enters docking section J3, the then power generation effect that hardware 1 and second adapter piece 3 are pulled away from, but owing to engage by the inner corner portion 3a of welding with the hardware 1 and second adapter piece 3 temporarily, therefore the space can not take place between the hardware 1 and second adapter piece 3.
After engaging the terminal point e3 that arrives second adapter piece joint operation with throw A temporarily, do not finish friction stir at terminal point e3, but carry out friction stir continuously, up to the end position E that is arranged on second adapter piece 3 PTill.In addition, in the present embodiment, on the extended line of the seam (boundary line) of the hardware 1,1 of surface 12 sides that come across hardware 1, be provided with end position E PIn addition, end position E PAlso be the described later first formal starting position S that engages the friction stir in the operation M1
Arrive end position E interim the joint with throw A PAfter, interim joint is risen on while rotating with throw A, stir pin A2 (with reference to Fig. 2 (a)) from end position E thereby make PBreak away from.
In addition, the interim joint with the second cosmic velocity (rate of climb) of throw A according to stirring size, the shape of selling A2, being used to be provided with end position E PThe material of member and thickness wait and set, but in most cases be set in the scope of 30～60 (mm/ branches).In addition, the interim rotary speed of rotary speed when mobile that engages when breaking away from throw A is identical or higher than it.
Then, implement bottom outlet and form operation.Bottom outlet forms operation shown in Fig. 2 (b), is at the first formal starting position S that engages the friction stir in the operation M1Form the operation of bottom outlet P1.That is, bottom outlet formation operation is the operation that forms bottom outlet P1 in the formal insertion precalculated position that engages the stirring pin B2 that uses throw B.
Bottom outlet P1 is in order to reduce the formal hole that engages the insertion resistance (resistance of pressing in) of the stirring pin B2 that uses throw B and be provided with, in the present embodiment, be that the aperture of formed punching H1 enlarges and forms by will engage stirring pin A2 (with reference to Fig. 2 (a)) with throw A with not shown drill bit etc. temporarily and break away from the time.If utilize punching H1, then can simplify the formation operation of bottom outlet P1, therefore can shorten the activity duration.The form of bottom outlet P1 does not have special restriction, but is cylindric in the present embodiment.In addition, in the present embodiment, on second adapter piece 3, formed bottom outlet P1, but the position of bottom outlet P1 does not have special restriction, both can be formed on first adapter piece 2, also can be formed on docking section J2, the J3, but be preferably, be formed on the extended line of seam (boundary line) of hardware 1,1 of surface 12 sides that come across hardware 1 as described in the present embodiment.
The maximum diameter of hole Z of bottom outlet P1 1Less than formal maximum outside diameter (epimere footpath) Y that engages with the stirring pin B2 of throw B 2, but be preferably the maximum outside diameter Y that stirs pin B2 250～90%.In addition, if the maximum diameter of hole Z of bottom outlet P1 1Less than the maximum outside diameter Y that stirs pin B2 250%, the reducing degree and may descend of resistance of pressing in that then stirs pin B2, in addition, if the maximum diameter of hole Z of bottom outlet P 1Surpass the maximum outside diameter Y that stirs pin B2 290%, then reduce by the amount that stirs the frictional heat that pin B2 produces, the zone of plasticity liquidation diminishes, the heat input quantity reduces, the load increase when therefore formal joint being moved with throw B is easy to generate defective.
In addition, if the degree of depth Z of bottom outlet P1 2More than the required degree of depth, then required time of the processing of bottom outlet P1 elongated, so degree of depth Z of bottom outlet P1 2Preferably less than the length L that stirs pin B2 1If, but the degree of depth Z of bottom outlet P1 2Less than the length L that stirs pin B2 170%, the reducing degree and may descend of resistance of pressing in then, in addition, if the degree of depth Z of bottom outlet P1 2Surpass the length L that stirs pin B2 190%, then reduce by the amount that stirs the frictional heat that pin B2 produces, the zone of plasticity liquidation diminishes, the heat input quantity reduces, the load increase when therefore formal joint being moved with throw B is easy to generate defective.Therefore, the degree of depth Z of bottom outlet P 2Be preferably the length L that stirs pin B2 170～90%.
In addition, if the volume of bottom outlet P1 is more than required volume, then the zone of plasticity liquidation diminishes, resistance of pressing in when stirring pin B2 is pressed into may increase, therefore the volume of bottom outlet P1 is preferably less than the volume that stirs pin B2, if but the volume of bottom outlet P1 is less than 40% of the volume that stirs pin B2, then resistance of pressing in reduces degree and may descend, in addition, if the volume of bottom outlet P1 above 80% of the volume that stirs pin B2, is then reduced by the amount that stirs the frictional heat of selling the B2 generation, the zone of plasticity liquidation diminishes, the heat input quantity reduces, and the load when therefore formal joint being moved with throw B increases, and is easy to generate defective.Therefore, the volume of bottom outlet P1 is preferably 40～80% of the volume that stirs pin B2.
In addition, in the present embodiment, the aperture that has exemplified the punching H1 that will temporarily engage the stirring pin A2 (with reference to Fig. 2 (a)) that uses throw A enlarges the situation of back as bottom outlet P1, but is stirring the maximum outside diameter X that sells A2 2Greater than the formal minimum outer diameter Y that engages with the stirring pin B2 of throw B 3, and stir the maximum outside diameter X of pin A2 2Less than the maximum outside diameter Y that stirs pin B2 2(Y 3＜X 2＜Y 2) situation under, also can be directly will stir the punching H1 of pin A2 as bottom outlet P1.
(3) the first formal operations that engage:
The first formal operation that engages is the operation that the docking section J1 with hardware 1,1 formally engages.First formal the joint in the operation of present embodiment, use the formal joint shown in Fig. 2 (b) from surface 12 sides of hardware 1 the docking section J1 under the state of interim joint to be carried out friction stir with throw B.
First formal the joint in the operation.Shown in Fig. 5 (a)～(c), the stirring pin B2 insertion (being pressed into) that formally engages with throw B is formed at starting position S M1On bottom outlet P1, make the stirring pin B2 that inserted under situation about not breaking away from, not move to end position E midway then M1That is,, begin to carry out friction stir, carry out friction stir then continuously, up to end position E from bottom outlet P1 first formal the joint in the operation M1Till.In addition, in the present embodiment, the starting position S of friction stir is set on second adapter piece 3 M1, on first adapter piece 2, end position E is set M1, but do not represent starting position S M1With end position E M1The position limit.
With reference to Fig. 5 (a)～(c) the first formal operation that engages is described in detail.
At first, shown in Fig. 5 (a), make formal joint be positioned at bottom outlet P1 (starting position S with throw B M1) directly over, then, formal joint is descended with throw B limit to the right rotation limit, thereby makes the front end that stirs pin B2 insert bottom outlet P1.Insert bottom outlet P1 if stir pin B2, the side face (side) that then stirs pin B2 is connected to the hole wall of bottom outlet P1, and metal begins the plasticity liquidation from hole wall.Under this state, when the side face that utilize to stir pin B2 arranges the metal of plasticity liquidation, will stir and sell B2 and be pressed into, therefore can reduce to be pressed into the resistance of pressing in of initial stage, in addition, before the formal shoulder B1 that engages with throw B is connected to the surface 32 of second adapter piece 3, stir pin B2 and be connected to the hole wall of bottom outlet P1 and produce frictional heat, therefore can shorten the required time of plasticity liquidation.That is, can reduce the load of friction stir device, also can shorten the required activity duration of formal joint.
The starting position S that inserts friction stir with the stirring pin B2 of throw B will formally be engaged M1The time formal joint wait according to the size that stirs pin B2, shape, by the material of the hardware 1 of friction stir etc. and thickness with the rotary speed (rotary speed during insertion) of throw B and set, in most of the cases be set in the scope of 70～700 (rpm), use throw B from starting position S but be preferably than formal joint M1End position E to friction stir M1Formal joint when mobile is higher with the rotary speed of throw B when mobile (rotary speed).Thus, the situation that the rotary speed of the rotary speed when inserting when mobile is identical is compared, because the required time of plastic deformation liquidation is shortened, therefore can promptly carry out starting position S M1The insertion operation of the stirring pin B2 at place.
In addition, if 3.0 times of the rotary speed of the rotary speed during the formal insertion that engages with throw B when mobile, then the heat to the metal input increases, the temperature of metal rises to more than the required temperature, in addition, if 1.5 times of the rotary speed of the rotary speed when inserting when mobile, then the shortening effect of activity duration diminishes, and the rotary speed during the therefore formal insertion that engages with throw B is preferably 1.5～3.0 times of rotary speed when mobile.
The formal joint with the insertion speed (decrease speed) of throw B according to stirring size, the shape of selling B2, being used to be provided with starting position S M1The material of member and thickness wait and set, but in most cases be set in the scope of 5～60 (mm/ branches).
The integral body that stirs pin B2 enters second adapter piece 3, and the whole surface of the lower surface B11 of shoulder B1 is with after the surface 32 of second adapter piece 3 contacts, shown in Fig. 5 (b), formal joint is relatively moved to the end of the docking section J1 of hardware 1,1 with throw B, make formal joint with throw B crosscut docking section J3 and charge into docking section J1 then.If formal joint is moved with throw B, then it stirs pin B2 metal plasticity liquidation successively on every side, and on away from the position of stirring pin B2, the metal of own plasticity liquidation solidifies once again, thereby forms plastification zone W1 (hereinafter referred to as " face side plastification zone W1 ").
The formal joint with the translational speed (transporting velocity) of throw B according to stirring the size of selling B2, shape, set by the material and the thickness of the hardware 1 of friction stir etc., but in most cases be set in the scope of 30～300 (mm/ branches).In addition, when formal joint was moved with throw B, the axis that can make shoulder B1 was with respect to the rear side slight inclination of perpendicular towards direct of travel, if but do not tilt, but being vertical state, the then formal direction conversion that engages with throw B becomes easily, can do complicated action.
Under situation that may be excessive to the heat of hardware 1 input, be preferably the water of supplying with that formally engages with throw B from surperficial 12 side direction on every side and wait and cool off.In addition, if cooling water enters between the hardware 1,1, then on composition surface (side 11), may produce oxide scale film, but in the present embodiment, owing to implemented interim joint operation, with the seam obturation between the hardware 1,1, so cooling water is difficult to enter between the hardware 1,1, so the quality at junction surface can deterioration.
On the docking section J1 of hardware 1,1, on the seam of hardware 1,1, (engage on the motion track in the operation) route of setting friction stir temporarily, formal joint is relatively moved along this route with throw B, till the end of docking section J1 plays the other end, carry out friction stir continuously.After making formal joint relatively move to the other end of docking section J1, make formal joint with throw B crosscut docking section J2, then directly to end position E while carry out friction stir with throw B M1Relatively move.
In addition, in the present embodiment, on the extended line of the seam (boundary line) of the hardware 1,1 of surface 12 sides that come across hardware 1, set the starting position S of friction stir M1, therefore the first formal route that engages the friction stir in the operation can be made as a straight line.If the route of friction stir is made as a straight line, then the displacement that formally engages with throw B can be controlled at Min., therefore can carry out the first formal operation that engages efficiently, also can reduce the formal wear extent that engages with throw B.
Arrive end position E formal the joint with throw B M1After, shown in Fig. 5 (c), formal joint is risen on while rotating with throw B, stir pin B2 from end position E thereby make M1(with reference to Fig. 5 (b)) breaks away from.In addition, if at end position E M1The place breaks away from stirring pin B2 upward, then can form and stir the punching Q1 of the roughly the same shape of pin B2 inevitably, but in the present embodiment, still make it residual.
Make formal joint use the stirring pin B2 of throw B from end position E M1Formal joint during disengaging is preferably the rotary speed that is higher than when mobile with the rotary speed (rotary speed during disengaging) of throw B.Thus, the situation that the rotary speed of the rotary speed when breaking away from when mobile is identical is compared, and the disengaging resistance that stirs pin B2 reduces, and therefore can promptly carry out end position E M1The separating operation of the stirring pin B2 at place.
In addition, if 3.0 times of the rotary speed of the rotary speed during the formal disengaging that engages with throw B when mobile, then the heat to the metal input increases, the temperature of metal rises to more than the required temperature, in addition, if 1.5 times of the rotary speed of the rotary speed when breaking away from when mobile, then the shortening effect of activity duration diminishes, and the rotary speed during the therefore formal disengaging that engages with throw B is preferably 1.5～3.0 times of rotary speed when mobile.
The formal joint with the second cosmic velocity (rate of climb) of throw B according to stirring size, the shape of selling B2, being used to be provided with starting position S M1The material of member and thickness wait and set, but in most cases be set in the scope of 5～60 (mm/ branches).
(4) first repair procedure:
First repair procedure is the operation of the face side plastification zone W1 that forms by the first formal joint operation being carried out friction stir on hardware 1, and the purpose of carrying out this operation is that the joint defect that possible be comprised in the W1 of face side plastification zone is repaired.
In first repair procedure of present embodiment, shown in Fig. 6 (a)～(b), at least the first repairing area R1, the second repairing area R2 and the 3rd repairing area R3 among the W1 of face side plastification zone are carried out friction stir.
The purpose of the first repairing area R1 being carried out friction stir is to cut off with the tunnel defective of the direct of travel formation of throw B along formal joint.Make under the dextrorotary situation of formal joint usefulness throw B, left side at its direct of travel may produce the tunnel defective, under the situation of anticlockwise, right side at direct of travel may produce the tunnel defective, therefore formal joint is used in the dextrorotary present embodiment of throw B, as long as set the first repairing area R1, make it comprise the top of observing the face side plastification zone W1 that is positioned at the direct of travel left side from the plane at least and get final product.
The purpose that the second repairing area R2 is carried out friction stir is to be involved in oxide scale film in the W1 of face side plastification zone (oxide scale film that forms) cut-out when formally engaging with throw B crosscut docking section J2 on the bearing surface 21 of the side 14 of hardware 1 and first adapter piece 2.As will formally engaging the end position E of the friction stir in the operation as described in the present embodiment M1Be arranged under the situation on first adapter piece 2, make under the dextrorotary situation of formal joint usefulness throw B, it is higher that oxide scale film is involved in the possibility on top of the face side plastification zone W1 that is positioned at its direct of travel right side, under the situation of anticlockwise, it is higher that oxide scale film is involved in the possibility on top of the face side plastification zone W1 that is positioned at direct of travel left side, therefore formal joint is used in the dextrorotary present embodiment of throw B, as long as set the second repairing area R2, make it comprise the top of observing the face side plastification zone W1 that is positioned at the direct of travel right side among the face side plastification zone W1 with first adapter piece, 2 adjacency from the plane at least and get final product.In addition, the edge from the seam of the hardware 1 and first adapter piece 2 to hardware 1 side of the second repairing area R2 apart from d 4More preferably greater than the stirring pin B2 maximum outside diameter Y of formal joint with throw B 2
The purpose that the 3rd repairing area R3 is carried out friction stir is the oxide scale film that is involved in face side plastification zone W1 when formally engaging with throw B crosscut docking section J3 (oxide scale film of formation on the bearing surface 31 of the side 14 of hardware 1 and second adapter piece 3) cut-out.As will formally engaging the starting position S of the friction stir in the operation as described in the present embodiment M1Be arranged under the situation on second adapter piece 3, make under the dextrorotary situation of formal joint usefulness throw B, it is higher that oxide scale film is involved in the possibility on top of the face side plastification zone W1 that is positioned at its direct of travel left side, under the situation of anticlockwise, it is higher that oxide scale film is involved in the possibility on top of the face side plastification zone W1 that is positioned at the direct of travel right side, therefore formal joint is used in the dextrorotary present embodiment of throw B, as long as set the 3rd repairing area R3, its top of observing the face side plastification zone W1 that is positioned at the direct of travel left side from the plane that comprises at least among the face side plastification zone W1 with second adapter piece, 3 adjacency is got final product.In addition, from the edge of hardware 1 side of seam to the three repairing area R3 of the hardware 1 and second adapter piece 3 apart from d 5More preferably greater than the maximum outside diameter Y of formal joint with the stirring pin B2 of throw B 2
In first repair procedure of present embodiment, use than formal the joint and carry out friction stir with throw C with the more small-sized repairing of throw B.Thus, can prevent that the plastification zone is extended to more than the required size.
Repair and to engage with throw A identically with interim, constitute, shown in Fig. 6 (b), comprise cylindrical shoulder C1 and give prominence to stirring pin (probe) C2 on the lower surface that is arranged at this shoulder C1 by the metal material of hard such as tool steel with throw C.
Stir pin C2 and hang down, in the present embodiment, be configured as the circular cone shape of tip from the lower surface of shoulder C1.In addition, on the side face that stirs pin C2, be formed with and be carved into spiral helicine agitator.The joint defect that causes with throw B by the formal joint shown in Fig. 2 (b) be formed at mostly from the upper end of stirring pin B2 play its length 1/3 till scope in, the length of therefore repairing with the stirring pin C2 of throw C is preferably the length L that engages the stirring pin B2 that uses throw B formal 1More than 1/3 of (with reference to Fig. 2 (b)), if but greater than its 1/2, therefore then the plastification zone may be extended to more than the required size, is preferably below 1/2.In addition, though the size of the maximum outside diameter of stirring pin C2 (footpath, upper end) and minimum outer diameter (footpath, lower end) does not have special restriction, in the present embodiment, they are respectively less than maximum outside diameter (upper end footpath) Y of formal joint with the stirring pin B2 of throw B 2And minimum outer diameter (footpath, lower end) Y 3
In first repair procedure, both can repairing be broken away from throw C, also can use the different repairing of form throw C to each repairing area, but in the present embodiment, as shown in Figure 7, a repairing is moved with throw C, form the motion track (bead) of unicursal, thereby the first repairing area R1, the second repairing area R2 and the 3rd repairing area R3 are carried out friction stir continuously.That is, in first repair procedure of present embodiment, make the starting position S that inserts friction stir RRepairing under situation about not breaking away from, do not moving to end position E with the stirring pin C2 (with reference to Fig. 6 (b)) of throw C midway RIn addition, in the present embodiment, exemplified the starting position S that friction stir is set on first adapter piece 2 R, and on second adapter piece 3, end position E is set R, carry out the situation of friction stir with the order of the second repairing area R2, the first repairing area R1, the 3rd repairing area R3, but do not represent starting position S RWith end position E RThe position and the order of friction stir limit.
With reference to Fig. 7 the order of the friction stir in first repair procedure is elaborated.
At first, be arranged at starting position S on the appropriate location of first adapter piece 2 with repairing stirring pin C2 (with reference to Fig. 6 (b)) insertion (being pressed into) with throw C R, begin to carry out friction stir then, the second repairing area R2 is carried out friction stir.
In addition, will repair with throw C insertion starting position S RThe time rotary speed and insertion speed (decrease speed) wait according to the size that stirs pin C2, shape, by the material of the hardware 1 of friction stir etc. and thickness and set, but in most cases, rotary speed is set in the scope of 300～2000 (rpm), and insertion speed is set in the scope of 30～60 (mm/ branches).
In addition, repair with the translational speed (transporting velocity) of throw C according to stirring the size of selling C2, shape, waited by the material of the hardware 1 of friction stir etc. and thickness and set, but in most cases be set in the scope of 100～1000 (mm/ branches).The rotary speed of rotary speed when repairing with throw C mobile when inserting is identical or lower than it.
If the second repairing area R2 is carried out friction stir, even then be involved under the situation of face side plastification zone W1 (with reference to Fig. 6 (b)) at the oxide scale film on the bearing surface 21 of the side 14 of hardware 1 and first adapter piece 2, also this oxide scale film can be cut off, even therefore with the face side plastification zone W1 of first adapter piece, 2 adjacency in, also be difficult to produce joint defect.In addition, carry out under the regional big situation of friction stir with throw C than using to repair, to use throw C work several to turn round (U-turn) as long as the route skew of friction stir is made repair on one side at the second repairing area R2.
Pretty in the friction stir end that the second repairing area R2 is carried out, do not make to repair to break away from, but directly move to the first repairing area R1 with throw C, carry out friction stir continuously along above-mentioned first route that formally engages the friction stir in the operation.Thus,, also can positively this tunnel defective be cut off, therefore be difficult to produce joint defect even be formed with continuously under the situation of tunnel defective at the route of the friction stir in formal joint operation.
After the friction stir to the first repairing area R1 finishes, do not make to repair to break away from, but directly move to the 3rd repairing area R3 with throw C, the 3rd repairing area R3 is carried out friction stir.Thus, even the oxide scale film on the bearing surface 31 of the side 14 of hardware 1 and second adapter piece 3 is involved in the situation of face side plastification zone W1 (with reference to Fig. 6 (b)), also this oxide scale film can be cut off, even therefore with the face side plastification zone W1 of second adapter piece, 3 adjacency in, also be difficult to produce joint defect.In addition, carry out under the regional big situation of friction stir with throw C than using to repair, while do revolution for several times as long as make the route skew of friction stir make to repair with throw C at the 3rd repairing area R3.
After the friction stir that the 3rd repairing area R3 is carried out finishes, make to repair to move to end position E with throw C R, make then to repair to rise on while rotate, thereby make stirring sell C2 (with reference to Fig. 6 (b)) from end position E with throw C RBreak away from.
In addition, make repairing use throw C from end position E RRotary speed during disengaging and second cosmic velocity (rate of climb) wait according to the size that stirs pin C2, shape, by the material of the hardware 1 of friction stir etc. and thickness and set, but in most cases, rotary speed is set in the scope of 300～2000 (rpm), and second cosmic velocity is set in the scope of 30～60 (mm/ branches).The rotary speed of rotary speed when repairing the disengaging with throw C when mobile is identical or higher than it.
(5) first crosscut repair procedure:
The first crosscut repair procedure also is the operation of the face side plastification zone W1 that forms by the first formal joint operation being carried out friction stir on hardware 1, its objective is the tunnel defective cut-out that may be comprised in the W1 of face side plastification zone.
In the first crosscut repair procedure of present embodiment, as shown in Figure 8, crosscut is moved with throw D, make its repeatedly crosscut face side plastification zone W1, by this face side plastification zone W1 is carried out friction stir.That is, in the first crosscut repair procedure, set the route of friction stir, make its repeatedly crosscut face side plastification zone W1.Thus, even be formed with the tunnel defective, also can fully positively this tunnel defective be cut off along face side plastification zone W1.
Friction stir route in the first crosscut repair procedure be set at make be formed on a plurality of plastifications zone (hereinafter referred to as " plastification zone again ") W3, W3 in the W1 of face side plastification zone ... be spaced from each other at interval on the route of the friction stir in the first formal joint operation (being the center line of face side plastification zone W1).
Friction stir route in the first crosscut repair procedure is provided with a plurality of intersecting routes F1 of crosscut face side plastification zone W1 and with the end transferring route F2 connected to one another of the homonymy of adjacent intersecting routes F1, F1.That is, the route of the friction stir in the first crosscut repair procedure comprises at least: from the side of face side plastification zone W1, clamp face side plastification zone W1, towards the first intersecting routes F1 of opposition side setting; From the terminal point e10 of this intersecting routes F1, along the first formal transferring route F2 that engages route (seam of hardware 1, the 1) setting of the friction stir in the operation; And from the terminal point s10 of this transferring route F2, clamp face side plastification zone W1, the second intersecting routes F1 that sets towards opposition side.
Intersecting routes F1 is the route with the friction stir of the form setting of crosscut face side plastification zone W1, in the present embodiment, and with the first friction stir route quadrature that formally engages in the operation.The starting point s10 of intersecting routes F1 and terminal point e10 are positioned at the side of face side plastification zone W1, clamp face side plastification zone W1 and opposed.
Though being preferably, the position of the starting point s10 of intersecting routes F1 and terminal point e10 is set in the position that crosscut is extracted in the W1 of face side plastification zone with the integral body of throw D, if but be set in face side plastification zone W1 at a distance of the position more than the required distance, then crosscut increases with the displacement of throw D, therefore in the present embodiment, they are set in the position of satisfying following condition: the distance of the lateral margin of zone W1 and the distance from the lateral margin of face side plastification zone W1 to terminal point e10 equal the external diameter X of crosscut with the shoulder D2 of throw D from starting point s10 to the face side plastification 4Half of (with reference to Fig. 9).That is, the length of intersecting routes F1 (distance from starting point s10 to terminal point e10) equals the width dimensions d of face side plastification zone W1 6Add the external diameter X of shoulder D2 4And the value that gets.In addition, by the width dimensions d of crosscut with the formed plastification of throw D zone 9Approximate the external diameter X of shoulder D2 4, so the length of intersecting routes F1 approximates the width dimensions d of face side plastification zone W1 5Add by the width dimensions d of crosscut with the formed plastification of throw D zone 9And the value that gets.
The spacing distance d of adjacent intersecting routes F1, F1 7Size be set at make plastification again zone W3, W3 ... be spaced from each other at interval on the route of the friction stir in the first formal joint operation (that is the center line of face side plastification zone W1).In addition, the spacing distance d of the adjacent zone of plastification again W3, W3 8Width dimensions d at the zone of plastification again W3 9More than, be more preferably and guarantee at width dimensions d 9More than 2 times.
Transferring route F2 is that the terminal point e10 from an intersecting routes F1 plays the route than the friction stir till the starting point s10 of another intersecting routes F1 of the end position EC side of the more close friction stir of this intersecting routes F1, in the present embodiment, be arranged at right side or the left side of face side plastification zone W1, and parallel with the first formal route that engages the friction stir in the operation.
Transferring route F2 is preferably and is set in by crosscut is moved on the lateral margin position contacting of regional W4 of the plastification that forms and face side plastification zone W1 along transferring route F2 with throw D.In addition, in the present embodiment, as mentioned above, equal width dimensions d respectively as the distance of the lateral margin of the terminal point e10 of the intersecting routes F1 of transferring route F2 starting point and face side plastification zone W1 and as the distance of the starting point s10 of the intersecting routes F1 of transferring route F2 terminal point and the lateral margin of face side plastification zone W1 by the formed plastification of crosscut usefulness throw D zone 9Half, so W4 inevitable lateral margin with face side plastification zone W1 in plastification zone contacts.
Order to the friction stir in the first crosscut repair procedure is elaborated.
In addition, in the present embodiment, above-mentioned repairing is used as crosscut throw D with throw C (with reference to Fig. 6), omits its detailed description.In addition, the rotary speed of crosscut usefulness throw D, insertion speed, translational speed, second cosmic velocity etc. are also identical with the situation of repairing with throw C, omit its detailed description.
In the present embodiment, a crosscut is moved with throw D as zigzag, form the motion track (bead) of unicursal, by this from the starting position S of friction stir CTo end position E CCarry out friction stir continuously.That is, make the starting position S that inserts friction stir CCrosscut under situation about not breaking away from, do not moving to end position E with the stirring pin D2 (with reference to Fig. 9) of throw D midway CIn addition, when each crosscut face side plastification zone W1, make crosscut break away from also harmless with throw D.In addition, in the present embodiment, exemplified the starting position S that friction stir is set on hardware 1 C, and on second adapter piece 3, end position E is set CSituation, but do not represent starting position S CWith end position E CThe position limit.
Order to the friction stir in the first crosscut repair procedure is described in detail.
In the first crosscut repair procedure, at first, crosscut is inserted (being pressed into) with the stirring pin D2 (with reference to Fig. 9) of throw D be arranged at starting position S on the appropriate location of hardware 1 C, begin to carry out friction stir then, carry out friction stir continuously along article one intersecting routes F1.
If making crosscut moves along intersecting routes F1 with throw D, the metal on top that then is positioned at face side plastification zone W1 is once more by friction stir (with reference to Fig. 9), therefore can be fully positively with the tunnel defective that is not completely severed in above-mentioned first repair procedure and the cut-outs such as tunnel defective that on position, form away from the route of the friction stir in first repair procedure.
After crosscut arrives the terminal point e10 of article one intersecting routes F1 with throw D, crosscut is changed over the direction of the route of the friction stir in the formal joint operation with the moving direction of throw D, it is moved along transferring route F2.That is, at terminal point e10 crosscut is broken away from throw D, but directly move, thereby the metal of the side that is positioned at face side plastification zone W1 is carried out friction stir continuously along transferring route F2.In the present embodiment, the transferring route F2 and the first formal route that engages the friction stir in the operation are parallel, therefore compare with the situation that transferring route F2 is tilted, and the distance of transferring route F2 shortens.
After crosscut arrives the starting point s10 of second intersecting routes F1 with throw D, crosscut is changed over the direction of intersecting with face side plastification zone W1 with the moving direction of throw D, and crosscut is directly moved along second intersecting routes F1 under situation about not breaking away from throw D, thereby face side plastification zone W1 is carried out friction stir continuously.
Carry out said process repeatedly, after crosscut arrives the terminal point e10 of last intersecting routes F1 with throw D, make crosscut move to end position E with throw D C, crosscut is risen on while rotating with throw D, stir pin D2 (with reference to Fig. 9) from end position E thereby make CBreak away from.
Thus, if make a plurality of plastifications again zone W3, W3 ... on the first formal friction stir route that engages in the operation, be spaced from each other at interval, then with in the W1 of whole face side plastification zone, form again the situation in plastification zone and compare, crosscut reduces with the crosscut number of times of throw D and the number of times of direction conversion, the result, the length overall of the route of the friction stir in the first crosscut repair procedure shortens, therefore useless action reduces in the action of crosscut with throw D, and can cut off the tunnel defective efficiently.Particularly in the present embodiment, the spacing distance d of the adjacent zone of plastification again W3, W3 8More than the width dimensions d9 of the zone of plastification again W3, so useless action further reduces in the action of crosscut with throw D.
In addition, even will be also harmless with throw D as crosscut with the different throw of throw C with repairing, but even in this case, this throw be also preferably more small-sized with throw B than formal joint shown in Figure 2.In addition, the tunnel defective that causes with throw B by formal joint be formed at mostly from the upper end of stirring pin play its length 1/3 till scope in, so crosscut is preferably the length L that engages the stirring pin B2 (with reference to Fig. 2) that uses throw B formal with the length of the stirring pin of throw D 1More than 1/3, if but greater than 1/2, then the plastification zone may be extended to more than the required size, therefore be preferably below 1/2.
After the first crosscut repair procedure finishes, remove the burr that produces because of first front travel, the first formal friction stir that engages in operation, first repair procedure and the first crosscut operation, shown in Figure 10 (a),, make the back side 13 up then with hardware 1,1 turn-over.
(6) second front travels:
Second front travel is the second formal operation of carrying out before the operation that engages, and in the present embodiment, is included in the second formal starting position S that engages the friction stir in the operation M2The bottom outlet that forms bottom outlet P2 forms operation.In addition, in second front travel, can comprise above-mentioned first adapter piece and engage operation, engage the operation and second adapter piece temporarily and engage operation.
(7) the second formal operations that engage:
The second formal operation that engages is the operation that the docking section J1 with hardware 1,1 formally engages.Second formal the joint in the operation of present embodiment,, use at the first formal formal joint that use in the operation of engaging and carry out friction stir from 13 couples of docking section J1 of rear side of hardware 1 with throw B as Figure 10 (a) and (b).
Second formal the joint in the operation, be arranged at bottom outlet P2 (starting position S on second adapter piece 3 with formally engaging stirring pin B2 insertion (being pressed into) with throw B M2), make the stirring pin B2 that is inserted under situation about not breaking away from, move to the end position E that is arranged on first adapter piece 2 midway then M2That is,, begin to carry out friction stir, carry out friction stir then continuously, up to end position E from bottom outlet P2 second formal the joint in the operation M2Till.
With reference to Figure 10 (a)～(c) the second formal operation that engages is described in detail.
At first, shown in Figure 10 (a), make formal joint with throw B be positioned at bottom outlet P2 directly over, then, formal joint is descended with throw B limit to the right rotation limit, thereby will stir the front end insertion bottom outlet P2 of pin B2.In addition, identical with the above-mentioned first formal situation that engages operation, the rotary speed the when rotary speed during the formal insertion that engages with throw B is preferably and is higher than formal joint and uses throw B mobile.
The integral body that stirs pin B2 enters second adapter piece 3, and the whole surface of the lower surface B11 of shoulder B1 is with after the surface of second adapter piece 3 contacts, shown in Figure 10 (b), formal joint is relatively moved to the end of the docking section J1 of hardware 1,1 with throw B.If formal joint is moved with throw B, then be positioned at it and stir pin B2 metal plasticity liquidation successively on every side, and on away from the position of stirring pin B2, the metal of plasticity liquidation solidifies once more, thereby forms plastification zone W2 (hereinafter referred to as " rear side plastification zone W2 ").In the present embodiment, use same formal joint throw B first formal the joint in the operation and the second formal joint operation, so the sectional area of rear side plastification zone W2 is identical with the sectional area of face side plastification zone W1.In addition, identical with the situation of the first formal joint operation, when formal joint is moved with throw B, the axis that can make shoulder B1 is with respect to the rear side slight inclination of perpendicular towards direct of travel, if but do not tilt, but being vertical state, the then formal direction conversion that engages with throw B becomes easily, can do complicated action.In addition, to the heat of hardware 1 input may be excessive situation under, be preferably the water of supplying with that from the back side 13 side direction formally engage with throw B on every side and wait and cool off.
Behind the end of the docking section J1 that arrives hardware 1,1, formal joint is relatively moved along the seam of hardware 1,1 with throw B, thereby carry out friction stir continuously, the other end up to docking section J1, while carrying out friction stir formal joint is relatively moved with throw B then, up to end position E M2Till.
When docking section J1 is carried out friction stir, make formal joint enter the face side plastification zone W1 that in the first formal joint operation, forms and carry out friction stir simultaneously with the stirring pin B2 of throw B.Thus, utilize stirring pin B2 that friction stir is carried out in the first formal deep that engages the face side plastification zone W1 that forms in the operation once more, even therefore be formed with joint defect continuously in the deep of face side plastification zone W1, also this joint defect can be cut off, make it discontinuous, thereby can improve the air-tightness and the watertightness at junction surface.In addition, in the present embodiment, the formal length L that engages with the stirring pin B2 of throw B 1Set for and satisfy 1.01≤2L 1The relation of/t≤1.10 (with reference to Fig. 2 (b)) as long as therefore formal joint is moved along the seam of hardware 1,1 with throw B, stirs pin B2 and can positively enter face side plastification zone W1.
Arrive end position E formal the joint with throw B M2After, formal joint is risen on while rotating with throw B, stir pin B2 from end position E thereby make M2Break away from (with reference to Figure 10 (c)).The formal rotary speed that engages when breaking away from throw B is identical with the situation of the above-mentioned first formal joint operation, is preferably the rotary speed that is higher than when mobile.
In addition, if the first formal punching Q1 and the second formal formal joint that engages in the operation that left behind in the operation of engaging uses the mobile alignment of throw B overlapping, then the metal of plasticity liquidation may flow among the wrong hole Q1, produce joint defect, therefore be preferably the second formal end position E that engages the friction stir in the operation is set on the position away from punching Q1 M2(punching Q2), and set the second formal route that engages the friction stir in the operation, make it avoid punching Q1, formal joint is moved along this route with the stirring pin B2 of throw B.
In addition, even at the second formal formal joint that use in the operation of engaging with the stirring pin B2 of throw B under the situation by the first formal punching Q1 that engages operation, space betwixt from hour, the metal of plasticity liquidation may be pushed to punching Q1, produce joint defect, therefore the first formal end position E that engages the friction stir in the operation M1Use the motion track of throw B (to be end position E in the present embodiment with the second formal joint that formally engages in the operation M2) beeline d when observing from the plane 1Be more preferably more than the external diameter of formal joint with the shoulder B1 of throw B.
In addition, if carry out the second formal joint operation with throw B as the first formal formal joint that uses in the operation that engages of use as described in the present embodiment, then can improve operating efficiency, reach the purpose of cutting down cost, and owing to the sectional area of face side plastification zone W1 equates with the sectional area of rear side plastification zone W2, therefore the quality at junction surface homogeneous more, but, even use the formal joint of different shape also harmless with throw first formal the joint in the operation and the second formal joint operation.
Use the formal joint of different shape with under the situation of throw first formal the joint in the operation and the second formal joint operation, for example be preferably Figure 11 (a) and (b) shown in, with the first formal length L that engages the formal joint that uses in the operation with the stirring pin B2 of throw B 1Formally engage the length L that the formal joint that uses in the operation is used the stirring pin B2 ' of throw B ' with second 2Sum is set in more than the thickness t of hardware 1 at J1 place, docking section.In addition, stir the length L of pin B2, B2 ' 1, L 2Obviously respectively less than thickness t.Thus, utilize the second formal formal joint that uses in the operation that engages to use the stirring pin B2 ' of throw B ' that friction stir is carried out in the first formal deep that engages the face side plastification zone W1 that forms in the operation once more, even therefore be formed with joint defect continuously in the deep of face side plastification zone W1, also this joint defect can be cut off, make it discontinuous, thereby can improve the air-tightness and the watertightness at junction surface.
And, be more preferably as Figure 11 (a) and (b), will formally engage with throw B, the stirring pin B2 of B ', the length L of B2 ' 1, L 2Be set in more than 1/2 of thickness t of the hardware 1 at J1 place, docking section respectively, and, preferably be set in below 3/4 of thickness t.If will stir the length L of pin B2, B2 ' 1, L 2Be set in more than 1/2 of thickness t, then face side plastification zone W1 and rear side plastification zone W2 are overlapping at the central portion of the thickness direction of hardware 1, and the difference of the sectional area of the sectional area of face side plastification zone W1 and rear side plastification zone W2 reduces, therefore the quality at the junction surface homogeneous that becomes will be if will stir the length L of selling B2, B2 ' 1, L 2Be set in below 3/4 of thickness t, then when carrying out friction stir, do not need the dorsal part fitting, therefore can improve operating efficiency.
Be more preferably and stir the length L of pin B2, B2 ' 1, L 2Be set at and satisfy 1.01≤(L 1+ L 2The relation of)/t≤1.10.If in advance with (L 1+ L 2)/t is set at more than 1.01, even then hardware 1 has dimensional tolerance etc., also can make stirring pin B2 ' positively enter face side plastification zone W1 in the operation second formal the joint.In addition, if (L 1+ L 2)/t is greater than 1.10, and then each throw increases to more than the required size, and the load that puts on the friction stir device increases, if but in advance with (L 1+ L 2)/t is set at below 1.10, and the load that then puts on the friction stir device reduces.
(8) second repair procedure:
Second repair procedure is the operation of the rear side plastification zone W2 that forms by the second formal joint operation being carried out friction stir on hardware 1, its objective is the joint defect that may be comprised in the W2 of rear side plastification zone is repaired.Second repair procedure is except carrying out the friction stir this point from the back side 13 sides of hardware 1, and is identical with above-mentioned first repair procedure, therefore omits its detailed description.
(9) second crosscut repair procedure:
The second crosscut repair procedure is the operation of the rear side plastification zone W2 that forms by the second formal joint operation being carried out friction stir on hardware 1, its objective is the tunnel defective cut-out that may be comprised in the W2 of rear side plastification zone.The second crosscut repair procedure is except carrying out the friction stir this point from the back side 13 sides of hardware 1, and is identical with the first above-mentioned crosscut repair procedure, therefore omits its detailed description.
After the second crosscut repair procedure finishes, remove the burr that produces because of second front travel, the second formal friction stir that engages in operation, second repair procedure and the second crosscut repair procedure, excise first adapter piece 2 and second adapter piece 3 then.
Through above-mentioned operation (1)～(9), even under the situation that the extremely thick hardware 1,1 that thickness is surpassed 40 (mm) engages, also can improve the air-tightness and the watertightness at junction surface.
[variation]
In addition, also harmless even the sequential scheduling in the above-mentioned embodiment one is carried out suitable change.
For example, engage in the operation at above-mentioned first adapter piece, set first adapter piece and engaged the starting point s2 of operation and the position of terminal point e2, make hardware 1,1 be positioned at the right side (with reference to Fig. 4) of dextrorotary interim joint with the direct of travel of throw A, but be not limited thereto, also can be with the position of terminal point e2 shown in Figure 4 as turning back a little, the position of the starting point s1 of interim joint operation shown in Figure 4 is engaged the terminal point of operation as first adapter piece.Promptly, as shown in figure 12, starting point s2 is set and a m2 that turns back on the seam of the hardware 1 and first adapter piece 2, and will be at starting point s2 and the interim starting point s1 of operation that engages between the m2 of turning back as terminal point e2, after making interim joint move to a m2 that turns back from starting point s2 with throw, make it move to terminal point e2, get final product thereby docking section J2 is carried out friction stir from a m2 that turns back.
Thus, the terminal point e2 that need not to engage operation from first adapter piece is set on first adapter piece 2 to the route of the friction stir of the starting point s1 of interim joint operation, therefore the displacement that temporarily engages with throw A can be controlled at Min..That is, can carry out first adapter piece efficiently and engage operation, also can reduce the interim wear extent that engages with throw A.
In addition, make under the dextrorotary situation of interim joint usefulness throw A, be preferably the starting point s2 that sets first adapter piece and engage operation, the position of turn back a m2 and terminal point e2, make that at least the route of the friction stir from starting point s2 to a m2 that turns back, hardware 1,1 is positioned at the right side of interim joint with the direct of travel of throw A.In addition, make interim joint usefulness throw A under the situation of anticlockwise, though the diagram of omission, but be preferably the starting point setting first adapter piece and engage operation, turn back a little and the position of terminal point, make that at least the route from starting point to friction stir a little of turning back, hardware 1,1 is positioned at the left side of the direct of travel of interim joint usefulness throw A.
Similarly, engage in the operation at above-mentioned second adapter piece, also set second adapter piece and engaged the starting point s3 of operation and the position of terminal point e3, make hardware 1,1 be positioned at the right side (with reference to Fig. 4) of dextrorotary interim joint with the direct of travel of throw A, but be not limited thereto, also can be with the terminal point s1 of interim joint operation shown in Figure 4 as starting point, the position of starting point s3 that second adapter piece shown in Figure 4 is engaged operation is as turning back a little.Promptly, as shown in figure 12, turn back a m3 and terminal point e3 are set on the seam of the hardware 1 and second adapter piece 3, and will be at the interim terminal point e1 of operation that engages between turn back a m3 and the terminal point e3 as starting point s3, after making interim joint move to a m3 that turns back from starting point s3 with throw A, make it move to terminal point e3, get final product thereby docking section J3 is carried out friction stir from a m3 that turns back.
Thus, the route of friction stir that need not to engage the starting point s3 of operation from the terminal point e1 of interim joint operation to second adapter piece is arranged on second adapter piece 3, therefore the displacement that temporarily engages with throw A can be controlled at Min..That is, can carry out second adapter piece efficiently and engage operation, also can reduce the interim wear extent that engages with throw A.
In addition, make under the dextrorotary situation of interim joint usefulness throw A, be preferably the starting point s3 that sets second adapter piece and engage operation, the position of turn back a m3 and terminal point e3, make that at least from turning back a m3 to the route of the friction stir of terminal point e3, hardware 1,1 is positioned at the right side of interim joint with the direct of travel of throw A.In addition, make interim joint usefulness throw A under the situation of anticlockwise, though the diagram of omission, but be preferably the starting point setting second adapter piece and engage operation, turn back a little and terminal point Shuo position, make that at least hardware 1,1 is positioned at the left side of the direct of travel of interim joint usefulness throw A from the route of the friction stir of the terminal point of turning back a little.
In addition, in above-mentioned repair procedure, the first repairing area R1, the second repairing area R2 and the 3rd repairing area R3 have been carried out friction stir (with reference to Fig. 7), but also can only carry out friction stir the second repairing area R2 and the 3rd repairing area R3.
In the case, as long as shown in figure 13, move to repair and use throw C ', the plastification zone (the second repairing area R2 or the 3rd repairing area R3) that its crosscut is formed on the both ends of docking section J1 respectively by formal joint operation gets final product.Promptly, as long as making to repair on the end on one side of docking section J1 uses throw C ' to move along docking section J2, by this second repairing area R2 is carried out friction stir, on the end of the another side of docking section J1, make to repair and move along docking section J3, by this 3rd repairing area R3 is carried out friction stir and get final product with throw.Particularly, as long as the starting position S of friction stir is set on a hardware 1 R, make to repair and move to another hardware 1 with throw, by this side edge part of hardware 1 is carried out friction stir and get final product.Thus, also indrawn oxide scale film when formal joint is used throw B (with reference to Fig. 2 (b)) crosscut docking section J2, J3 can be cut off, therefore can obtain the few conjugant of joint defect.
In addition, when docking section J2 carries out friction stir, use under the dextrorotary situation of throw C ' making to repair, set the route of friction stir, make first adapter piece 2 be positioned at the left side of direct of travel, and, set the route of friction stir as shown in the figure under the situation of anticlockwise, make first adapter piece 2 be positioned at the right side of direct of travel.Similarly, when docking section J3 carries out friction stir, use under the dextrorotary situation of throw C ' making as shown in the figure to repair, set the route of friction stir, make second adapter piece 3 be positioned at the left side of direct of travel, under the situation of anticlockwise, set the route of friction stir, make second adapter piece 3 be positioned at the right side of direct of travel.Under any situation, the end position E of friction stir RAs long as all be set on first adapter piece 2 or second adapter piece 3, make the punching of repairing the stirring pin of using throw C ' not residue in hardware 1,1 and get final product.
In above-mentioned crosscut repair procedure, exemplified and make as the intersecting routes F1 of the part of friction stir route and formally engages the situation (with reference to Fig. 8) of the route quadrature of the friction stir in the operation, but the such oblique of intersecting routes F1 ' shown in also can image pattern 14.
The route of the friction stir in the crosscut repair procedure shown in Figure 14 also set for make a plurality of plastification zone W3, W3 ... on the formal friction stir route (center line of plastification zone W1) that engages in the operation, be spaced from each other at interval, but also can omit transferring route F2 shown in Figure 8, make many intersecting routes F1 ', F1 ' ... continuously.In addition, be preferably and guarantee the spacing distance d of adjacent plastification again zone W3, W3 on the center line of plastification zone W1 8Width dimensions d at the zone of plastification again W3 9More than, be more preferably and guarantee at width dimensions d 9More than 2 times.
Intersecting routes F1 ' also sets the plastification zone W1 crosscut that will form by formal joint operation for.The starting point of intersecting routes F1 ' (also being the terminal point of last intersecting routes F1 ') s11 and terminal point (also being the starting point of a back intersecting routes F1 ') e11 are positioned at the side of plastification zone W1, clamp plastification zone W1 and opposed.
The starting point s11 of intersecting routes F1 ' and terminal point e11 are preferably and are set in the position that crosscut is extracted in the W1 of plastification zone with the integral body of throw D, if but be set in plastification zone W1 at a distance of the position more than the required distance, then crosscut increases with the displacement of throw D, therefore in the present embodiment, they are set in the position of satisfying following condition: the distance of the lateral margin of zone W1 and the distance from the lateral margin of plastification zone W1 to terminal point e11 equal crosscut with half of the external diameter of the shoulder of throw D from starting point s11 to plastification.
In the first crosscut repair procedure of variation, at first crosscut is inserted (being pressed into) with the stirring pin of instrument D and be arranged at starting position S on the appropriate location of hardware 1 C, begin to carry out friction stir then, carry out friction stir continuously along article one intersecting routes F1 '.
After crosscut arrives the terminal point e11 of article one intersecting routes F1 ' with throw D, change the moving direction of crosscut with throw D, it is moved along second intersecting routes F1 '.That is, at terminal point e11 crosscut is broken away from throw D, but directly move, thereby plastification zone W1 is carried out friction stir continuously along second intersecting routes F1 '.
Carry out said process repeatedly, after crosscut arrives last intersecting routes F1 ' with throw D, make crosscut move to end position E with throw D C, crosscut is risen on while rotating with throw D, stir pin from end position E thereby make CBreak away from.
If the crosscut repair procedure shown in the image pattern 14 make like that with many intersecting routes F1 ', F1 ' of plastification zone W1 oblique ... continuous with zigzag, then compare with the situation that transferring route is set (with reference to Fig. 8), can reduce the number of times of crosscut with the direction conversion of throw D, therefore useless action further reduces in the action of crosscut with throw D, can cut off the tunnel defective more efficiently.
[embodiment two]
In above-mentioned embodiment one, exemplified hardware 1,1 with the interconnective situation of linearity, but for hardware 1,1 with L font or the interconnective situation of T font, also can use said method.In addition, exemplify below hardware 1,1 with the interconnective situation of L font.
The joint method of embodiment two is identical with the joint method of embodiment one, also comprises (1) preparatory process, (2) first front travels, (3) first formal operation, (4) first repair procedure, (5) first crosscut repair procedure, (6) second front travels, (7) second formal operation, (8) second repair procedure and (9) the second crosscut repair procedure of engaging of engaging.In addition, first front travel, first formal operation, first repair procedure and the first crosscut repair procedure of engaging is the operation of implementing from the face side of hardware 1, and second front travel, second formal operation, second repair procedure and the second crosscut repair procedure of engaging are the operations of implementing from the rear side of hardware 1.
(1) preparatory process:
With reference to Figure 15 preparatory process is described.The preparatory process of present embodiment comprises: the butt joint operation that the hardware 1,1 that desire is engaged docks; Dispose the adapter piece arrangement step of first adapter piece 2 and second adapter piece 3 in the both sides of the docking section J1 of hardware 1,1; And the welding operation that first adapter piece 2 and second adapter piece 3 is engaged in temporarily hardware 1,1 by welding.
In the butt joint operation, the hardware 1,1 that desire is engaged is configured to the L font, makes the side of a hardware 1 and the side driving fit of another hardware 1.
In the adapter piece arrangement step, first adapter piece 2 is disposed at one distolateral (outside) of the docking section J1 of hardware 1,1, make the bearing surface 21 (with reference to Figure 15 (b)) of first adapter piece 2 be connected to the side in the outside of hardware 1,1, and it is distolateral that second adapter piece 3 is disposed at another of docking section J1, makes the bearing surface 31 (with reference to Figure 15 (b)) of second adapter piece 3 be connected to the side of the inboard of hardware 1.In addition, when hardware 1,1 is combined into the L font, one in first adapter piece 2 and second adapter piece 3 (being the 3rd adapter piece 3 in the present embodiment) is disposed at the inner corner portion that formed by hardware 1,1 (bight that is formed by the side of the inboard of hardware 1,1).
In the welding operation, inner corner portion 2a, the 2a welding that will form by the hardware 1 and first adapter piece 2, thereby hardware 1 is engaged with first adapter piece 2, inner corner portion 3a, the 3a welding that will form by the hardware 1 and second adapter piece 3, thus hardware 1 is engaged with second adapter piece 3.
After preparatory process finished, on the pallet of not shown friction stir device, the not shown anchor clamps of use clip etc. limited, and it can't be moved with hardware 1,1, first adapter piece 2 and second adapter piece, 3 mountings.
(2) first front travels:
First front travel comprises: first adapter piece that hardware 1,1 is engaged with the docking section J2 of first adapter piece 2 engages operation; With the interim interim joint operation that engages of the docking section J1 of hardware 1,1; Second adapter piece that hardware 1,1 is engaged with the docking section J3 of second adapter piece 3 engages operation; And the bottom outlet that forms bottom outlet in the first formal starting position that engages the friction stir in the operation forms operation.
In first front travel of present embodiment, as Figure 16 (a) and (b), interim a joint is moved with throw A, form the motion track (bead) of unicursal, thereby docking section J1, J2, J3 are carried out friction stir continuously.
Order to the friction stir of first front travel of present embodiment is described in detail.
At first, make interim joint with the stirring pin A2 of throw A at the starting position S that in anticlockwise, inserts on the appropriate location that is arranged at first adapter piece 2 P, begin then to carry out friction stir, interim joint is relatively moved to the starting point s2 that first adapter piece engages operation with throw A.
Interim joint is relatively moved with throw A, engage to first adapter piece carry out friction stir continuously till the starting point s2 of operation after, at starting point s2 interim joint is broken away from throw A, engage operation but directly be transferred to first adapter piece.
In first adapter piece engages operation, the docking section J2 of first adapter piece 2 and hardware 1,1 is carried out friction stir.Particularly, on the seam of the hardware 1,1 and first adapter piece 2, set the route of friction stir, interim joint is relatively moved along this route with throw A, by this docking section J2 is carried out friction stir.In the present embodiment, interim joint is broken away from throw A midway, but carry out friction stir continuously to terminal point e2 from the starting point s2 of first adapter piece joint operation.
In addition, make interim joint usefulness throw A under the situation of anticlockwise, right side at direct of travel may produce small joint defect, therefore be preferably setting first adapter piece and engage the starting point s2 of operation and the position of terminal point e2, make hardware 1,1 be positioned at the left side of interim joint with the direct of travel of throw A.Thus, be difficult to produce joint defect, therefore can obtain high-quality conjugant in hardware 1 side.
After engaging the terminal point e2 that arrives first adapter piece joint operation with throw A temporarily, do not finish friction stir at terminal point e2, but carry out friction stir continuously, till the starting point s1 of interim joint operation, directly be transferred to interim joint operation then.In addition, in the present embodiment, the terminal point e2 that will engage operation from first adapter piece is set on first adapter piece 2 to the route of the friction stir of the starting point s1 of interim joint operation.
Engage in the operation interim, the docking section J1 of hardware 1,1 is carried out friction stir.Particularly, on the seam of hardware 1,1, set the route of friction stir, interim joint is relatively moved along this route with throw A, by this docking section J1 is carried out friction stir.In the present embodiment, interim joint is broken away from throw A midway, but carry out friction stir continuously to terminal point e1 from the starting point s1 of interim joint operation.
After interim joint arrives the terminal point e1 that temporarily engages operation with throw A, directly be transferred to second adapter piece joint operation.That is, at the interim terminal point e1 that engages operation interim joint is broken away from throw A, engage operation but be transferred to second adapter piece, the terminal point e1 of above-mentioned interim joint operation also is the starting point s3 that second adapter piece engages operation.
In second adapter piece engages operation, docking section J3, the J3 of the hardware 1,1 and second adapter piece 3 carried out friction stir.In the present embodiment, the starting point s3 of second adapter piece joint operation is positioned at the centre of docking section J3, J3, therefore at the starting point s3 that engages operation from second adapter piece to the route setting of the friction stir of a terminal point e3 m3 that turns back, after making interim joint move to a m3 that turns back from starting point s3 (with reference to Figure 16 (a)) with throw A, make interim joint move to terminal point e3 (with reference to Figure 16 (b)) with throw A from a m3 that turns back, the starting point s3 from second adapter piece joint operation carries out friction stir continuously to terminal point e3 by this.That is, make interim joint with throw A after starting point s3～turn back comes and goes between the m3, make interim joint move to terminal point e3 with throw A, the starting point s3 from second adapter piece joint operation carries out friction stir continuously to terminal point e3 by this.In addition, the route of friction stir and be set in respectively on the seam of the hardware 1 and second adapter piece 3 to the route of the friction stir of terminal point e3 from a m3 that turns back from starting point s3 to a m3 that turns back.
The position relation of starting point s3, turn back a m3 and terminal point e3 does not have special restriction, but as described in present embodiment, make interim joint usefulness throw A under the situation of anticlockwise, be preferably the starting point s3 that sets second adapter piece and engage operation, the position of turn back a m3 and terminal point e3, make that at least from turning back a m3 to the route of the friction stir of terminal point e3, hardware 1,1 is positioned at the left side of interim joint with the direct of travel of throw A.In the case, the route that is preferably the friction stir of the starting point s3～round two-way between the m3 of turning back all is set on the seam of the hardware 1 and second adapter piece 3, and interim joint is moved along this route with throw A.Thus, on route from starting point s3 to a m3 that turns back, hardware 1 is positioned at the right side of interim joint with the direct of travel of throw A, even produced joint defect in hardware 1 side, since after carry out from turning back a m3 to the friction stir of terminal point e3, hardware 1 is positioned at the left side of interim joint with the direct of travel of throw A, therefore can revise above-mentioned joint defect, obtains high-quality conjugant.
In addition, make under the dextrorotary situation of interim joint usefulness throw A, be preferably the starting point setting second adapter piece and engage operation, turn back a little and the position of terminal point, make that hardware 1,1 is positioned at the right side of interim joint with the direct of travel of throw A from the route of the friction stir of the terminal point of turning back a little.Particularly, though the diagram of omission, but, on the position of the m3 that turns back under the situation of anticlockwise, terminal point is set with throw A at joint temporarily and gets final product as long as turn back a little engaging on the position of the terminal point e3 under the situation of anticlockwise, to be provided with temporarily with throw A.
Shown in Figure 16 (b), after engaging the terminal point e3 that arrives second adapter piece joint operation with throw A temporarily, do not finish friction stir at terminal point e3, but carry out friction stir continuously, till the end position EP that is arranged on second adapter piece 3.Interim engage arrive end position EP with throw A after, interim joint is risen on while rotate with throw A, break away from from end position EP thereby make stirring sell A2.
Then, implement bottom outlet and form operation.It is the operation that forms bottom outlet P1 in the first formal starting position that engages the friction stir in the operation that bottom outlet forms operation.Bottom outlet in present embodiment forms in the operation, and bottom outlet P1 is formed on the docking section J3 of the hardware 1 and second adapter piece 3.
The formation method of bottom outlet P1 is also unrestricted, for example can form by not shown known drill bit rotation is inserted, in addition, while also can by make have more large-scale and rotate to be inserted into to extract than the formal throw that engages with the more small-sized stirring pin of the stirring pin B2 (with reference to Fig. 2 (b)) of throw B and form than interim joint with the stirring pin A2 (with reference to Fig. 2 (a)) of throw A.
In addition, the position of bottom outlet P1 (i.e. the first formal starting position that engages the friction stir in the operation) is also unrestricted, both can be formed on first adapter piece 2 and second adapter piece 3, also can be formed on the J2 of docking section, but be preferably as described in the present embodiment, be formed on the extended line of seam (boundary line) of hardware 1,1 of surface 12 sides that come across hardware 1, or be formed at the end (being the end of docking section J1) of the seam of omitting illustrated hardware 1,1.
In addition, forming under the situation of bottom outlet P1 on the extended line of the seam of hardware 1,1, can as shown in figure 17 the end position E of the friction stir in first front travel be set on this extended line P, will engage the punching that forms when stirring pin A2 with throw A breaks away from temporarily, or enlarge and the formation bottom outlet with the aperture with punching such as not shown drill bit directly as bottom outlet.Thus, can omit or simplify the processing operation of bottom outlet, therefore can shorten the activity duration.
(3) the first formal operations that engage:
After first front travel finishes, the first formal operation that engages that enforcement formally engages the docking section J1 of hardware 1,1.First formal the joint in the operation of present embodiment, use the formal joint throw B shown in Fig. 2 (a), from the face side of hardware 1 the docking section J1 under the interim engagement state is carried out friction stir.
First formal the joint in the operation, at first, as shown in figure 18, make formal joint also will stir pin B2 simultaneously to anticlockwise and insert starting position S with throw B M1(being the bottom outlet P1 shown in Figure 16 (b)) begins to carry out friction stir then.In the present embodiment, with starting position S M1Be arranged at the docking section J3 of the hardware 1 and second adapter piece 3, therefore in the time will formally engaging stirring pin B2 with throw B and be pressed into, in the part inflow hardware 1 and the small gap between second adapter piece 3 of the metal of plasticity liquidation, therefore the metal of plasticity liquidation is difficult to take place because of the not enough joint defect that causes of thickness towards the loss in the above-mentioned gap mitigation that becomes after this.
In addition, if the stirring pin B2 that will formally engage with throw B is pressed into bottom outlet P1, the then power generation effect that hardware 1 and second adapter piece 3 are pulled away from, but owing to will engage with inner corner portion 3a, the 3a that second adapter piece 3 forms by hardware 1 by welding, so can not produce the space between the hardware 1 and second adapter piece 3 temporarily.
Proceed to the end of docking section J1 of hardware 1,1 in friction stir after, make formal joint directly charge into docking section J1 with throw B, formal joint is relatively moved along the friction stir route on the seam that is set in hardware 1,1 with throw B, and the end to end from docking section J1 carries out friction stir continuously by this.After making formal joint relatively move to the other end of docking section J1, make its crosscut docking section J2, directly relatively move to end position EM1 while carry out friction stir with throw B.
Arrive end position E formal the joint with throw B M1After, formal joint is risen on while rotating with throw, stir pin B2 from end position E thereby make M1Break away from.In addition, if at end position E M1The place breaks away from stirring pin B2 upward, then can form and stir the punching Q1 of the roughly the same shape of pin B2 inevitably, but in the present embodiment, still make it residual.
In addition, in the present embodiment, exemplified the first formal starting position that engages the friction stir in the operation has been arranged at the situation of docking section J3, but also can shown in Figure 19 (a), be arranged on second adapter piece 3, can also shown in Figure 19 (b), be arranged on first adapter piece 2.
(4) first repair procedure:
After the first formal joint operation finishes, implement first repair procedure, in this first repair procedure, the face side plastification zone W1 that forms by the first formal joint operation is carried out friction stir on hardware 1.In first repair procedure of present embodiment, as Figure 20 (a) and (b), utilization engages with the more small-sized repairing of throw B throw C than formal, first among the regional W1 of face side plastification is repaiied to rely the region R 1 and the second repairing area R2 to carry out friction stir at least.
The purpose of the first repairing area R1 being carried out friction stir is to cut off with the tunnel defective of the direct of travel formation of throw B (with reference to Fig. 2 (b)) along formal joint.Make formal joint usefulness throw B in the present embodiment of anticlockwise, right side at direct of travel may produce the tunnel defective, therefore as long as set the first repairing area R1, make it comprise the top of observing the face side plastification zone W1 that is positioned at the direct of travel right side from the plane at least and get final product.
The purpose that the second repairing area R2 is carried out friction stir is to be involved in oxide scale film in the W1 of face side plastification zone (oxide scale film that forms) cut-out when formally engaging with throw B crosscut docking section J2 on the bearing surface 21 of the side 14 of hardware 1 and first adapter piece 2.As will formally engaging the end position E of the friction stir in the operation as described in the present embodiment M1Be arranged on first adapter piece 2 and make formal joint with throw B (with reference to Fig. 2 (b)) under the situation of anticlockwise, it is higher that oxide scale film is involved in the possibility on top of the face side plastification zone W1 that is positioned at direct of travel left side, therefore as long as set the second repairing area R2, make it comprise the top of observing the face side plastification zone W1 that is positioned at the direct of travel left side among the face side plastification zone W1 with first adapter piece, 2 adjacency from the plane at least and get final product.
In first repair procedure, shown in Figure 20 (b), a repairing is moved with throw, form the motion track (bead) of unicursal, thereby the first repairing area R1, the second repairing area R2 and the 3rd repairing area R3 are carried out friction stir continuously.In addition, in the present embodiment, exemplified the situation of carrying out friction stir with the order of the first repairing area R1, the second repairing area R2, but do not represented the order of friction stir is limited.
With reference to Figure 20 (b) order of the friction stir in first repair procedure is described in detail.
At first, be arranged at starting position S on the appropriate location of hardware 1 with repairing stirring pin insertion (being pressed into) with throw C R, begin to carry out friction stir then, the first repairing area R1 (with reference to Figure 20 (a)) is carried out friction stir.In the present embodiment, at the formal starting position S that engages the friction stir in the operation M1Starting position S is set near (with reference to Figure 18) R, and clamping starting position S R, with end position E RA relative side setting M that turns back R, make and repair with throw C to a M that turns back RAfter relatively moving, at a M that turns back RTurn back, it is relatively moved along docking section J1 (with reference to Figure 18), by this first repairing area R1 (with reference to Figure 20 (a)) is carried out friction stir.By from starting position S RTo a M that turns back RCarry out friction stir, can will insert starting position S at the formal stirring pin B2 that engages with throw B M1Indrawn oxide scale film cuts off when (with reference to Figure 18).
After the friction stir that the first repairing area R1 is carried out finishes, do not make to repair to break away from, but directly move to the second repairing area R2 with throw C, carry out friction stir for the second repairing area R2.In addition, carry out under the regional big situation of friction stir with throw C than using to repair, to use throw C work several to turn round (U-turn) as long as the route skew of friction stir is made repair on one side at the second repairing area R2.
After the friction stir that the second repairing area R2 is carried out finishes, make to repair to move to end position E with throw C R, make then to repair to rise on while rotate, thereby make stirring sell C2 from end position E with throw C RBreak away from.
(5) first crosscut repair procedure:
After first repair procedure finishes, implement the first crosscut repair procedure, in this first crosscut repair procedure, crosscut is moved with throw D, make its repeatedly crosscut face side plastification zone W1, by this face side plastification zone W1 is carried out friction stir.
The route of the friction stir in the first crosscut repair procedure be set at make a plurality of plastifications again zone W3, W3 ... be spaced from each other at interval on the route of the friction stir in the first formal joint operation (center line of face side plastification zone W1), in the present embodiment, it comprises: many intersecting routes F1, the F1 of crosscut face side plastification zone W1, And with end transferring route F2 connected to one another, the F2 of the homonymy of adjacent intersecting routes F1, F1 ...
Intersecting routes F1 and first formally engages the route quadrature of the friction stir in the operation.In addition, transferring route F2 is arranged at right side or the left side of face side plastification zone W1, and is parallel with the first formal friction stir route that engages in the operation.
Order to the friction stir in the first crosscut repair procedure is elaborated.
In the present embodiment, also be that a crosscut is moved as zigzag with throw D, form the motion track (bead) of unicursal, by this from the starting position S of friction stir CTo end position E CCarry out friction stir continuously.
In the first crosscut repair procedure, at first, crosscut is inserted (being pressed into) with the stirring pin D2 (with reference to Fig. 9) of throw D be arranged at starting position S on the appropriate location of hardware 1 C, begin to carry out friction stir then, carry out friction stir continuously along article one intersecting routes F1.Behind the terminal point e10 that arrives article one intersecting routes F1, change the moving direction of crosscut with throw D, it is moved along transferring route F2, the metal that is positioned at W1 side, face side plastification zone is carried out friction stir continuously.After crosscut arrives the starting point s10 of second intersecting routes F1 with throw D, change the moving direction of crosscut with throw D, it is moved along second intersecting routes F1, W1 carries out friction stir continuously to face side plastification zone.Carry out said process repeatedly, after crosscut arrives the terminal point e10 of last intersecting routes F1 with throw D, make crosscut move to end position E with throw D C, crosscut is risen on while rotating with throw D, stir pin D2 (with reference to Fig. 9) from end position E thereby make CBreak away from.
After the first crosscut repair procedure finishes, remove the burr that produces because of first front travel, the first formal friction stir that engages in operation, first repair procedure and the first crosscut repair procedure, with hardware 1,1 turn-over, make the back side up then.
(6) second front travels:
After with hardware 1,1 turn-over, implement second front travel, this second front travel is included in the second formal bottom outlet that engages the starting position formation bottom outlet (omitting diagram) of the friction stir in the operation and forms operation.
(7) the second formal operations that engage:
After second front travel finishes, implement the second formal operation that engages, this second formal joint in the operation, as shown in figure 22, use is carried out friction stir from the back side 13 sides of hardware 1 to docking section J1 at the first formal formal joint throw B that uses in the operation that engages.When docking section J1 is carried out friction stir, make formal joint enter the face side plastification zone that in the first formal joint operation, forms, and carry out friction stir (with reference to Figure 10 (b)) simultaneously with the stirring pin B2 of throw B.
Second formal the joint in the operation of present embodiment, set the route of friction stir, make it avoid making and inserting not shown bottom outlet (starting position S at the first formal punching Q1 that left behind in the operation that engages M2) the stirring pin under situation about not breaking away from, do not moving to end position E midway M2, by this from starting position S M2To end position E M2Carry out friction stir continuously.In addition, the first formal end position E that engages the friction stir in the operation M1Beeline d when (center of punching Q1) and the second formal formal joint that engages in the operation are observed from the plane with the motion track of throw B 1Guarantee more than the external diameter of formal joint with the shoulder B1 of throw B.
In addition, the order of the second formal joint operation of present embodiment is identical with the situation of the second formal joint operation of above-mentioned embodiment one, therefore omits its detailed description.
(8) second repair procedure:
After the second formal joint operation finishes, implement second repair procedure, in this second repair procedure, the rear side plastification zone W2 that forms by the second formal joint operation is carried out friction stir on hardware 1.Second repair procedure is except carrying out the friction stir this point from the back side 13 sides of hardware 1, and is identical with above-mentioned first repair procedure, therefore omits its detailed description.
(9) second crosscut repair procedure:
After second repair procedure finishes, implement the second crosscut repair procedure, in this second crosscut repair procedure, the rear side plastification zone W2 that forms by the second formal joint operation is carried out friction stir on hardware 1.Second repair procedure is except carrying out the friction stir this point from the back side 13 sides of hardware 1, and is identical with the above-mentioned first crosscut repair procedure, therefore omits its detailed description.
After the second crosscut repair procedure finishes, remove the burr that produces because of second front travel, the second formal friction stir that engages in operation, second repair procedure and the second crosscut repair procedure, excise first adapter piece 2 and second adapter piece 3 then.
Through above-mentioned operation (1)～(9), even under the situation that the extremely thick hardware 1,1 that thickness is surpassed 40 (mm) engages, also can improve the air-tightness and the watertightness at junction surface.
In addition, in embodiment two, exemplified the situation that disposes second adapter piece 3 in the inner corner portion of the hardware 1,1 that docks with the L font, even but as shown in figure 23, inner corner portion at hardware 1,1 disposes first adapter piece 2, and it is also harmless to dispose second adapter piece 3 with the form of clamping docking section J1 at opposition side.
In the case, first adapter piece can be set on the seam of hardware 1 and first adapter piece 2 engage the starting point s2 of operation and a m2 that turns back, and will be at starting point s2 and the interim starting point s1 (inner corner portion of hardware 1,1) of operation that engages between the m2 of turning back as terminal point e2, after making interim joint move to a m2 that turns back from starting point s2 with throw A, make it move to terminal point e2, thereby docking section J2 is carried out friction stir from a m2 that turns back.
In addition, make under the dextrorotary situation of interim joint usefulness throw A, be preferably the starting point s2 that sets first adapter piece and engage operation, the position of turn back a m2 and terminal point e2, make that at least the route of the friction stir from starting point s2 to a m2 that turns back, hardware 1,1 is positioned at the right side of interim joint with the direct of travel of throw A.In addition, make interim joint usefulness throw A under the situation of anticlockwise, though the diagram of omission, but be preferably the starting point setting first adapter piece and engage operation, turn back a little and the position of terminal point, make at least from starting point to the friction stir route of turning back a little, hardware 1,1 is positioned at the left side of the direct of travel of interim joint usefulness throw A.
Similarly, engage in the operation at above-mentioned second adapter piece, turn back a m3 and terminal point e3 can be set on the seam of the hardware 1 and second adapter piece 3, and will be at the interim terminal point e1 of operation that engages between turn back a m3 and the terminal point e3 as starting point s3, after making interim joint move to a m3 that turns back from starting point s3 with throw A, make it move to terminal point e3, thereby docking section J3 is carried out friction stir from a m3 that turns back.
In addition, make under the dextrorotary situation of interim joint usefulness throw A, be preferably the starting point s3 that sets second adapter piece and engage operation, the position of turn back a m3 and terminal point e3, make that at least from turning back a m3 to the friction stir route of terminal point e3, hardware 1,1 is positioned at the right side of interim joint with the direct of travel of throw A.In addition, make interim joint usefulness throw A under the situation of anticlockwise, though the diagram of omission, but be preferably the starting point setting second adapter piece and engage operation, turn back a little and the position of terminal point, make that at least from turning back a little to the friction stir route of terminal point, hardware 1,1 is positioned at the left side of the direct of travel of interim joint usefulness throw A.
Embodiment
The concrete engaging condition of above-mentioned joint method is shown in table 1～table 3.What table 1 disclosed is alloy species, thickness, the size of each throw and the size of bottom outlet of hardware 1, first adapter piece 2 and second adapter piece 3, and what table 2 disclosed is rotary speed, insertion speed and the translational speed of each throw in above-mentioned each operation.In addition, in the present embodiment, the first formal operation that engages is identical with the engaging condition of the second formal joint operation, and first repair procedure is identical with the engaging condition of second repair procedure.In addition, in the table 1, " JIS 5052-0 " is the mark of kind of the expression aluminium alloy of Japanese Industrial Standards' defined, and the meaning is the aluminium alloy (A1-Mg is an alloy) that comprises 2.2～2.8% Mg, and is the annealed aluminium alloy.In addition, " C1020 " is the mark of kind of the expression copper (copper alloy) of Japanese Industrial Standards' defined, and the meaning is high purity oxygen free copper (Cu is more than 99.96%).
[table 1]
[table 2]
Figure A200780033399D00671

Claims (61)

1. joint method comprises:
Described hardware docking section is each other carried out the first formal operation that engages of friction stir from the face side of hardware; And
From the rear side of described hardware second of friction stir is carried out in described docking section and formally engages operation, it is characterized in that,
Described second formal the joint in the operation, make the stirring pin of throw enter the plastification zone that in the described first formal joint operation, forms and carry out friction stir simultaneously.
2. joint method comprises:
Described hardware docking section is each other carried out the first formal operation that engages of friction stir from the face side of hardware; And
From the rear side of described hardware second of friction stir is carried out in described docking section and formally engages operation, it is characterized in that,
The described first formal length that engages the stirring pin of the throw that uses in the operation is set in more than the thickness of the described hardware of locating described docking section with the described second length sum that formally engages the stirring pin of the throw that uses in the operation.
3. joint method comprises:
Described hardware docking section is each other carried out the first formal operation that engages of friction stir from the face side of hardware; And
From the rear side of described hardware second of friction stir is carried out in described docking section and formally engages operation, it is characterized in that,
With the length setting of the described first formal stirring pin that engages the throw that uses in the operation in more than 1/2 of thickness of the described hardware at place, described docking section, and will be in the length setting of the described second formal stirring pin that engages the throw that use in the operation more than 1/2 of thickness at the described hardware at place, described docking section.
4. joint method as claimed in claim 3, it is characterized in that the length of the described stirring pin of the described throw that uses in the length of the described stirring pin of the described throw that uses in the described second formal joint operation and the described first formal joint operation is identical.
5. as each described joint method in the claim 1～4, it is characterized in that, the described first formal length that engages the stirring pin of the throw that uses in the operation is made as L 1, the described second formal length that engages the stirring pin of the throw that uses in the operation is made as L 2, when the thickness of the described hardware at place, described docking section is made as t, satisfy 1.01≤(L 1+ L 2The relation of)/t≤1.10.
6. as each described joint method in the claim 1～4, it is characterized in that, with the length setting of the described first formal stirring pin that engages the throw that uses in the operation in below 3/4 of thickness of the described hardware at place, described docking section, and below 3/4 of thickness of the described hardware of will the described second formal length setting that engages the stirring pin of the throw that uses in the operation locating in described docking section.
7. as each described joint method in the claim 1～4, it is characterized in that, set the route of the friction stir in the described second formal joint operation, it is avoided because of formally engaging the punching that on the end position of the friction stir in the operation disengaging of stirring pin is formed described first.
8. joint method as claimed in claim 7, it is characterized in that the described first formal end position and described second that engages the friction stir in the operation formally engages the beeline of motion track of described stirring pin of the described throw that uses in the operation more than the external diameter of the shoulder of the described second described throw that formally uses in the joint operation.
9. as each described joint method in the claim 1～4, it is characterized in that, before implementing the described first formal joint operation, implement the interim operation that engages, this interim joint in the operation, use is carried out friction stir from the face side of described hardware to described docking section than the described first formal more small-sized interim joint throw of throw that uses in the operation that engages.
10. as each described joint method in the claim 1～4, it is characterized in that, before implementing the described second formal joint operation, implement the interim operation that engages, this interim joint in the operation, use is carried out friction stir from the rear side of described hardware to described docking section than the described second formal more small-sized interim joint throw of throw that uses in the operation that engages.
11. a joint method comprises:
Preparatory process, in this preparatory process, distolateral configuration first adapter piece in hardware docking section each other, make the bearing surface of described first adapter piece be connected to the side of described two metal elements, and another distolateral configuration second adapter piece in described docking section makes the bearing surface of described second adapter piece be connected to the side of described two metal elements;
First adapter piece that friction stir is carried out in described first adapter piece and the docking section of described two metal elements engages operation;
Described hardware docking section is each other carried out the interim joint operation of friction stir;
Second adapter piece that friction stir is carried out in described second adapter piece and the docking section of described two metal elements engages operation; And
The formal joint operation of friction stir is carried out in described hardware docking section each other under the interim engagement state, it is characterized in that,
The terminal point that engages operation at described first adapter piece does not finish friction stir, but carries out friction stir continuously, till the starting point of described interim joint operation, directly is transferred to described interim joint operation then.
12. joint method as claimed in claim 11 is characterized in that, carries out friction stir continuously, till the terminal point of described interim joint operation.
13. joint method as claimed in claim 11, it is characterized in that, do not finish friction stir at the terminal point of described interim joint operation, but carry out friction stir continuously, engage up to described second adapter piece till the starting point of operation, directly be transferred to described second adapter piece then and engage operation.
14. joint method as claimed in claim 13 is characterized in that, the origin-to-destination that engages operation from described second adapter piece carries out friction stir continuously.
15. a joint method comprises:
Preparatory process, in this preparatory process, distolateral configuration first adapter piece in hardware docking section each other, make the bearing surface of described first adapter piece be connected to the side of described two metal elements, and another distolateral configuration second adapter piece in described docking section makes the bearing surface of described second adapter piece be connected to the side of described two metal elements;
First adapter piece that friction stir is carried out in described first adapter piece and the docking section of described two metal elements engages operation;
Described hardware docking section is each other carried out the interim joint operation of friction stir;
Second adapter piece that friction stir is carried out in described second prodger and the docking section of described two metal elements engages operation; And
The formal joint operation of friction stir is carried out in described hardware docking section each other under the interim engagement state, it is characterized in that,
Terminal point in described interim joint operation does not finish friction stir, but carries out friction stir continuously, engages up to described second adapter piece till the starting point of operation, directly is transferred to described second adapter piece then and engages operation.
16. as each described joint method in the claim 11～14, it is characterized in that, make the throw that uses in described first adapter piece joint operation to right rotation, and set described first adapter piece and engage the starting point of operation and the position of terminal point, make described hardware be positioned at the right side of the direct of travel of described throw.
17. as each described joint method in the claim 11～14, it is characterized in that, make the throw that uses in described first adapter piece joint operation to anticlockwise, and set described first adapter piece and engage the starting point of operation and the position of terminal point, make described hardware be positioned at the left side of the direct of travel of described throw.
18., it is characterized in that the terminal point that will engage operation from described first adapter piece is set on described first adapter piece to the route of the friction stir of the starting point of described interim joint operation as each described joint method in the claim 11～14.
19. joint method as claimed in claim 18, it is characterized in that the route that described first adapter piece engages the friction stir in the operation and the terminal point that engages operation from described first adapter piece are guaranteed more than the external diameter of the shoulder of described throw to the spacing distance of the route of the friction stir of the starting point of described interim joint operation.
20. as each described joint method in the claim 13～15, it is characterized in that, make the throw that uses in described second adapter piece joint operation to right rotation, and the route setting in the friction stir of the origin-to-destination that engages operation from described second adapter piece is turned back a little, set starting point that described second adapter piece engages operation then, turn back a little and the position of terminal point, make that at least described hardware is positioned at the right side of the direct of travel of described throw from the route of the friction stir of the described described terminal point of turning back a little.
21. as each described joint method in the claim 13～15, it is characterized in that, make the throw that uses in described second adapter piece joint operation to anticlockwise, and the route setting in the friction stir of the origin-to-destination that engages operation from described second adapter piece is turned back a little, set starting point that described second adapter piece engages operation then, turn back a little and the position of terminal point, make that at least described hardware is positioned at the left side of the direct of travel of described throw from the route of the friction stir of the described described terminal point of turning back a little.
22. as each described joint method in the claim 13～15, it is characterized in that, will be set on described second adapter piece from the terminal point of described interim joint operation engages the starting point of operation to described second adapter piece the route of friction stir.
23. joint method as claimed in claim 22, it is characterized in that route and the spacing distance that described second adapter piece engages the route of the friction stir the operation of friction stir that engages the starting point of operation to described second adapter piece from the terminal point of described interim joint operation guaranteed more than the external diameter of the shoulder of described throw.
24., it is characterized in that the starting position of the friction stir in described formal joint operation forms bottom outlet, begins to carry out friction stir from described bottom outlet as each described joint method in the claim 13～15.
25. joint method as claimed in claim 24, it is characterized in that, maximum diameter of hole with described bottom outlet is decreased to less than the maximum outside diameter of the formal joint that uses in described formal joint operation with the stirring pin of throw in advance, is pressed into described bottom outlet then when making described stirring pin rotation.
26. joint method as claimed in claim 24 is characterized in that, forms described bottom outlet in the docking section of described first adapter piece and described hardware.
27. joint method as claimed in claim 26 is characterized in that, before described formal joint is inserted described bottom outlet with throw, will be engaged by the inner corner portion that described hardware and described first adapter piece form by welding in advance temporarily.
28. joint method as claimed in claim 24 is characterized in that, forms described bottom outlet in the docking section of described second adapter piece and described hardware.
29. joint method as claimed in claim 28 is characterized in that, before described formal joint is inserted described bottom outlet with throw, will be engaged by the inner corner portion that described hardware and described second adapter piece form by welding in advance temporarily.
30. joint method as claimed in claim 24 is characterized in that, the punching that will form when described second adapter piece engages the stirring pin disengaging of the throw that uses in the operation is as described bottom outlet.
31. joint method as claimed in claim 24 is characterized in that, the aperture of the punching that will form when described second adapter piece engages the stirring pin disengaging of the throw that uses in the operation enlarges the back as described bottom outlet.
32. a joint method comprises:
Hardware docking section is each other carried out the interim joint operation of friction stir; And
The formal joint operation of friction stir is carried out in described hardware docking section each other under the interim engagement state, it is characterized in that,
Use is implemented described interim joint operation with the more small-sized interim joint of throw with throw than the formal joint that uses in the described formal joint operation.
33. joint method as claimed in claim 32 is characterized in that,
In described interim joint operation, carry out friction stir from the face side of described hardware,
In described formal joint operation, carry out friction stir from the face side of described hardware.
34. as claim 32 or 33 described joint methods, it is characterized in that, in described interim joint operation, described docking section carried out friction stir continuously in its length range.
35., it is characterized in that the starting position of the friction stir in described formal joint operation forms bottom outlet, begins to carry out friction stir from described bottom outlet as claim 32 or 33 described joint methods.
36. joint method as claimed in claim 35, it is characterized in that, maximum diameter of hole with described bottom outlet is decreased to less than the maximum outside diameter of described formal joint with the stirring pin of throw in advance, is pressed into described bottom outlet then when making described stirring pin rotation.
37. joint method as claimed in claim 35 is characterized in that, the punching that will form when described interim joint uses the stirring pin of throw to break away from is as described bottom outlet.
38. joint method as claimed in claim 35 is characterized in that, the aperture of the punching that will form when described interim joint uses the stirring pin of throw to break away from enlarges the back as described bottom outlet.
39., it is characterized in that as claim 32 or 33 described joint methods, also comprise repair procedure, in this repair procedure, friction stir is carried out in the plastification zone that forms by described formal joint operation,
In described repair procedure, make under the dextrorotary situation of described formal joint usefulness throw, carry out friction stir to being positioned at described formal joint with the described plastification zone in the direct of travel left side of throw, making described formal joint use throw under the situation of anticlockwise, carry out friction stir with the described plastification zone on the direct of travel right side of throw to being positioned at described formal joint.
40. joint method as claimed in claim 39 is characterized in that, in described repair procedure, the route of the friction stir in the described formal joint operation carries out friction stir continuously.
41. joint method as claimed in claim 39 is characterized in that, uses and implements described repair procedure with the more small-sized repairing of throw with throw than described formal joint.
42. a joint method comprises:
Hardware docking section is each other carried out the formal joint operation of friction stir; And
The repair procedure of friction stir is carried out in the plastification zone that forms on described hardware by described formal joint operation, it is characterized in that,
In described formal joint operation, the starting position or the end position of friction stir is set on the adapter piece of the side that is disposed at described hardware docking section each other,
In described repair procedure, at least to carrying out friction stir with the described plastification zone of described adapter piece adjacency.
43. joint method as claimed in claim 42 is characterized in that,
In described formal joint operation, the starting position of friction stir is set on the adapter piece of the side that is disposed at described hardware docking section each other,
In described repair procedure, make under the dextrorotary situation of described formal joint usefulness throw, carry out friction stir to being positioned at described formal joint with the described plastification zone in the direct of travel left side of throw, making described formal joint use throw under the situation of anticlockwise, carry out friction stir with the described plastification zone on the direct of travel right side of throw to being positioned at described formal joint.
44. joint method as claimed in claim 42 is characterized in that,
In described formal joint operation, the end position of friction stir is set on the adapter piece of the side that is disposed at described hardware docking section each other,
In described repair procedure, make under the dextrorotary situation of described formal joint usefulness throw, carry out friction stir to being positioned at described formal joint with the described plastification zone on the direct of travel right side of throw, make described formal joint use throw under the situation of anticlockwise, carrying out friction stir with the described plastification zone in the direct of travel left side of throw being positioned at described formal joint.
45. as each described joint method in the claim 42～44, it is characterized in that, use and implement described repair procedure with the more small-sized repairing of throw with throw than described formal joint.
46. a joint method comprises:
Hardware docking section is each other carried out the formal joint operation of friction stir; And
The crosscut repair procedure, in this crosscut repair procedure, mobile throw, make it carry out repeatedly crosscut to the plastification zone that on described hardware, forms by described formal joint operation, by this friction stir is carried out in described plastification zone, it is characterized in that
Set the route of the friction stir in the described crosscut repair procedure, make to be spaced from each other at interval on the route of the friction stir of a plurality of plastifications again zone in described formal joint operation that in described plastification zone, form by described crosscut repair procedure.
47. joint method as claimed in claim 46 is characterized in that, the interval that makes adjacent described plastification again zone is more than the width dimensions in described plastification again zone.
48. joint method as claimed in claim 46 is characterized in that,
On the route of the friction stir in described crosscut repair procedure, be provided with many intersecting routes in the described plastification of crosscut zone and with the end transferring route connected to one another of the homonymy of adjacent described intersecting routes,
The route of the friction stir in described transferring route and the described formal joint operation is parallel.
49. joint method as claimed in claim 48, it is characterized in that, set the position of described transferring route, make that the lateral margin by the described plastification zone that forms in the plastification zone that described throw moved along described transferring route form and the described formal joint operation contacts.
50., it is characterized in that described throw is more small-sized than the throw that uses in the described formal joint operation as each described joint method in the claim 46～49.
51., it is characterized in that 1/3～1/2 of the length of the stirring pin of the throw that the length setting of the stirring pin of described throw uses as each described joint method in the claim 46～49 in described formal joint operation.
52. a friction stir method, this rubbing method are to form bottom outlet in the starting position of friction stir, begin to carry out friction stir from described bottom outlet, it is characterized in that,
In advance the stirring pin of throw is made the circular cone shape of tip, make the minimum outer diameter of the maximum diameter of hole of described bottom outlet greater than described stirring pin, and make the maximum outside diameter of the maximum diameter of hole of described bottom outlet, when making described stirring pin rotation, be pressed into described bottom outlet then less than described stirring pin.
53. friction stir method as claimed in claim 52 is characterized in that, the maximum diameter of hole of described bottom outlet be described stirring pin maximum outside diameter 50～90%.
54. friction stir method as claimed in claim 52 is characterized in that, the degree of depth of described bottom outlet is less than the length of described stirring pin.
55. friction stir method as claimed in claim 54 is characterized in that, the degree of depth of described bottom outlet be described stirring pin length 70～90%.
56. friction stir method as claimed in claim 52 is characterized in that, the volume of described bottom outlet is less than the volume of described stirring pin.
57. friction stir method as claimed in claim 56 is characterized in that, the volume of described bottom outlet be described stirring pin volume 40～80%.
58. friction stir method, it is characterized in that the rotary speed of the described throw when inserting the stirring pin of throw in the starting position of friction stir is higher than makes the rotary speed of described throw from the described throw of described starting position when the end position of friction stir moves.
59. friction stir method, it is characterized in that the rotary speed of the described throw when inserting the stirring pin of throw in the starting position of friction stir is to make described throw 1.5～3.0 times from the rotary speed of the described throw of described starting position when the end position of friction stir moves.
60. friction stir method, it is characterized in that, the rotary speed of the described throw of stirring pin when described end position breaks away from of the throw of the end position that arrives friction stir is higher than makes the rotary speed of described throw from the described throw of starting position when described end position moves of friction stir.
61. friction stir method, it is characterized in that the rotary speed of the described throw of stirring pin when described end position breaks away from that makes the throw of the end position that arrives friction stir is to make described throw 1.5～3.0 times from the rotary speed of the described throw of starting position when described end position moves of friction stir.
CN2007800333991A 2006-10-02 2007-03-16 Method of welding and method of friction stirring Expired - Fee Related CN101511522B (en)

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JP271243/2006 2006-10-02
JP271244/2006 2006-10-02
JP2006271249A JP4844329B2 (en) 2006-10-02 2006-10-02 Joining method
JP271249/2006 2006-10-02
JP2006271248A JP5082364B2 (en) 2006-10-02 2006-10-02 Joining method
JP2006271247A JP4957161B2 (en) 2006-10-02 2006-10-02 Friction stirring method
JP2006271245A JP4957160B2 (en) 2006-10-02 2006-10-02 Joining method
JP271245/2006 2006-10-02
JP2006271244A JP4844328B2 (en) 2006-10-02 2006-10-02 Joining method
JP271246/2006 2006-10-02
JP271248/2006 2006-10-02
JP2006271243A JP5092333B2 (en) 2006-10-02 2006-10-02 Joining method
JP271247/2006 2006-10-02
JP2006271246A JP4935282B2 (en) 2006-10-02 2006-10-02 Friction stirring method
PCT/JP2007/055346 WO2008041380A1 (en) 2006-10-02 2007-03-16 Method of welding and method of friction stir

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CN201310280336.3A Division CN103495801B (en) 2006-10-02 2007-03-16 Joint method
CN201110199733.9A Division CN102267006B (en) 2006-10-02 2007-03-16 Joint method
CN201210137735.XA Division CN102672342B (en) 2006-10-02 2007-03-16 Joint method
CN201110199754.0A Division CN102267007B (en) 2006-10-02 2007-03-16 Joint method
CN2011101997856A Division CN102284785B (en) 2006-10-02 2007-03-16 Joining method
CN2011101984396A Division CN102248277B (en) 2006-10-02 2007-03-16 Method of friction Stirring
CN201110198414.6A Division CN102303183B (en) 2006-10-02 2007-03-16 Method of welding

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