CN104607796B - The friction stir welding method that composite metal plate docking faying face transition zone is controlled - Google Patents
The friction stir welding method that composite metal plate docking faying face transition zone is controlled Download PDFInfo
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- CN104607796B CN104607796B CN201510076207.1A CN201510076207A CN104607796B CN 104607796 B CN104607796 B CN 104607796B CN 201510076207 A CN201510076207 A CN 201510076207A CN 104607796 B CN104607796 B CN 104607796B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
- B23K20/12—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding
- B23K20/122—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding using a non-consumable tool, e.g. friction stir welding
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Abstract
The invention discloses the friction stir welding method that a kind of composite metal plate faying face transition zone is controlled, realized the control of composite metal plate combination interface transition zone in welding process by agitating friction weldering stirring-head.By the present invention in that the single shaft shoulder stirring-head controlled with composite metal plate faying face transition zone and double-shaft shoulder stirring-head, control composite metal plate combination interface place plasticized metal flow behavior, realize the Laminar Flow state of combination interface, reduce in welding point and mutually to diffuse to form brittlement phase between the different metal atom between composite plate substrate and compound plate, realize the direct agitating friction welding fabrication of composite plate, effectively solve the composite plate face foreign material that combines between the higher and lower levels and mix the difficult problems such as embrittlement even cracking in a large number so that composite plate welding point meets life-time service requirement.
Description
Technical field
The invention belongs to solder technology, be specifically related to the friction stir welding method that a kind of composite metal plate docking faying face transition zone is controlled.
Background technology
Dissimilar metal clad plate is as a kind of material in physical property, mechanical property and switching performance etc. with bigger motility, and its application is very broad, but when applying dissimilar metal clad plate molding, its welding method can be subject to great limitation.When adopting general melting method welding composite plate, the inequality of heat input can cause certain deformation, composite plate faying face can be made to form bigger intermetallic compound transition layer, thus affecting the serviceability of dissimilar metal clad plate simultaneously.
Friction stir welding method is a kind of solid-state plasticized joining technology, and since coming out, agitating friction is welded in low-melting-point metal, and especially the welding field of aluminium alloy obtains and is widely applied.Compared with other welding methods, agitating friction solder technology has features: do not produce molten solder defect, welding deformation little, simple to operate, suitable in multiple material and joint form.Agitating friction soldering set has the unrivaled advantage of many melt welding methods, particularly its weld metal in welding process is non-fusible can form weld seam, its specific plasticizing metal temperature is less than the fusing point of common metal, it is even less than general intermetallic compound formation temperature, it is possible to well control the formation of weld heat-affected zone and intermetallic compound.Now, agitating friction weldering processing dissimilar metal clad plate is seldom adopted.
Chinese patent (103600167A) discloses the welding method of a kind of carbon steel and stainless steel clad plate.This welding method is and utilizes agitating friction weldering that composite plate is welded, but in order to control transition zone, butt joint is needed to process before weldering, need the groove that will process isosceles triangle on the end face of two composite plate butt joint edges, fill silk in groove after alignment, be then stirred friction welding (FW).The purpose of this invention is in that to control the mixed problem of composite plate transition region, but in actual welding process, due to the effect of the power of mixing needle, it is difficult to ensure that relative movement does not occur the pre-fill welding wire in groove, so its controllability is poor.
Summary of the invention
It is an object of the invention to provide the friction stir welding method that a kind of composite metal plate docking faying face transition zone is controlled, by controlling the plasticized metal flow behavior of composite plate substrate and compound plate, realize the Laminar Flow state of faying face, reduce in welding point and mutually to diffuse to form brittlement phase between the different metal atom between composite plate substrate and compound plate, realize the direct agitating friction welding fabrication of composite plate, effectively solve the composite plate face foreign material that combines between the higher and lower levels and mix the difficult problems such as embrittlement even cracking in a large number, solve the mixed problem of composite plate welding transition district metal, composite plate welding point is made to meet life-time service requirement.
The technical solution realizing the object of the invention is: the friction stir welding method that a kind of composite metal plate docking faying face transition zone is controlled, and method step is as follows:
Step 1, cleaning composite metal plate surface, and be fixed on the table；
The position of the stirring-head that step 2, adjustment composite metal plate docking faying face transition zone are controlled, the mixing needle of stirring-head making composite metal plate docking faying face transition zone controlled aligns with the weld seam of above-mentioned composite metal plate；
Step 3, welding parameter is set, welds；
Step 4, welded after, lift the composite metal plate docking controlled stirring-head of faying face transition zone, the composite metal plate after welding removed.
It is single shaft shoulder stirring-head or double-shaft shoulder stirring-head that above-mentioned composite metal plate docks the controlled stirring-head of faying face transition zone.
Above-mentioned single shaft shoulder stirring-head, including
It is arranged to the bare terminal end being fixed on friction stir welding machine main shaft；
With the shaft shoulder being connected bottom bare terminal end；
With the mixing needle being connected bottom the shaft shoulder；
Wherein, described mixing needle is provided with at least one annular protrusion.
Above-mentioned mixing needle is provided with at least two annular protrusion, and said two annular protrusion interval is arranged.
The junction of above-mentioned annular protrusion and mixing needle is arc transition.
Mixing needle between the above-mentioned shaft shoulder and the distance nearest annular protrusion of the shaft shoulder, its shape is gradual shrinkage, flaring type or column type from the shaft shoulder to the direction of annular protrusion；Above-mentioned annular protrusion is positioned at composite metal plate faying face place.
Above-mentioned double-shaft shoulder stirring-head includes
It is arranged to the bare terminal end being fixed on friction stir welding machine main shaft；
With the upper shaft shoulder being connected bottom bare terminal end；
With the mixing needle being connected bottom the upper shaft shoulder；
With the lower shaft shoulder being connected bottom mixing needle；
Wherein, described mixing needle is provided with at least one annular protrusion.
Above-mentioned mixing needle is provided with at least two annular protrusion, and said two annular protrusion interval is arranged.
The junction of above-mentioned annular protrusion and mixing needle is arc transition.
The above-mentioned upper shaft shoulder and the mixing needle between the annular protrusion that the upper shaft shoulder is nearest, its shape is gradual shrinkage, flaring type or column type from the upper shaft shoulder to the direction of annular protrusion；The above-mentioned lower shaft shoulder and the mixing needle between the annular protrusion that the lower shaft shoulder is nearest, its shape is gradual shrinkage, flaring type or column type from the lower shaft shoulder to the direction of annular protrusion；Above-mentioned annular protrusion is positioned at composite metal plate faying face place.
The present invention compared with prior art, its remarkable advantage: (1) can control the flow behavior of plastic metal in welding process, control the dissimilar metal mixing ratio in welding point；(2) belong to Solid-phase welding technology, do not arrive the welding temperature by weldering melting point metal and can control the generation of brittlement phase in welding point；(3) special heat transfer modes, it is possible to the effective welding controlling the big dissimilar metal double-level-metal composite plate of thermograde；(4) feasibility of the present invention is by force, easily operate.
Accompanying drawing explanation
Fig. 1 is the Fundamentals of Welding schematic diagram of prior art stirring-head.
Fig. 2 is the principle schematic of the composite metal plate docking controlled friction stir welding method of faying face transition zone of the employing double-shaft shoulder stirring-head of the present invention.
The composite metal plate that single shaft takes on stirring-head that adopts that Fig. 3 is the present invention docks the principle schematic of the controlled friction stir welding method of faying face transition zone.
Fig. 4 is the mixing needle schematic diagram of the embodiment of the present invention one.
Fig. 5 is the mixing needle schematic diagram of the embodiment of the present invention two.
Fig. 6 is the mixing needle schematic diagram of the embodiment of the present invention three.
Fig. 7 is the mixing needle schematic diagram of the embodiment of the present invention four.
Fig. 8 is the mixing needle schematic diagram of the embodiment of the present invention five.
Fig. 9 is the mixing needle schematic diagram of the embodiment of the present invention six.
Figure 10 is the flow chart that composite metal plate of the present invention docks the controlled friction stir welding method of faying face transition zone.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is described in further detail.
In conjunction with Fig. 1, in general stir friction welding process, the flowing of plasticized metal meets certain suction extruding theory, namely under agitating friction welding rod part, its one end is the shaft shoulder of stirring-head, the other end is the base plate of rigidity, in welding process, the distance between mixing needle end and base plate remains unchanged, and when stirring-head rotates and causes plasticized metal axially to flow along mixing needle surface, must there is an arrival end and a port of export.At arrival end, it is possible to form a temporary cavity, around plasticized metal will be attracted to this cavity, form so-called swabbing effect；At the port of export, change is flowed to and extrudes circumferential metal by plasticized metal, forms so-called extrusion effect；Just because of cavity to plasticized metal towards Weld pipe mill swabbing action and squeezing action, high temperature plasticized metal is made to be axially formed violent travel motion at mixing needle.
nullThe friction stir welding method that faying face transition zone is controlled is docked for composite metal plate of the present invention，Its principle is as shown in Figures 2 and 3，The mixing needle 3 of single shaft shoulder stirring-head that the composite metal plate faying face transition zone that adopts of welding is controlled and the controlled double-shaft shoulder stirring-head of composite metal plate faying face transition zone is provided with annular protrusion 4，Weld in welding process at agitating friction，The faying face of composite plate is positioned at annular protrusion 4 diameter maximum，This is equivalent to add partition between the shaft shoulder and backing plate of stirring-head，Make between the shaft shoulder 2 and the backing plate of stirring-head/a upper region between the shaft shoulder 6 and the lower shaft shoulder 5 is divided into two regions，Two arrival ends and the port of export is provided for Plastic Flow metal，It is plastic metal and provides two flowing spaces，It is made to form two temporary cavity in welding process，Substrate and the plasticized metal of compound plate is made to form respective suction extruding cavity，And at the faying face place of substrate Yu compound plate，Two convolution cavity phase extrusion moldings complete to connect.It is characterized in that the existence of annular protrusion 4 of mixing needle 3 makes two non-interfering plastic metal flowing transport regions of formation in welding process, and complete to connect in the mutual friction and Extrusion in faying face place, thus the mixing controlled between double-level-metal composite plate faying face place dissimilar metal, improve the serviceability of joint.Simultaneously for composite metal plate, the annular protrusion number N (N >=1) on its stirring-head used is consistent with composite plate combination interface number.
Embodiment one
In conjunction with Fig. 4 and Figure 10, the single shaft shoulder stirring-head that a kind of composite metal plate faying face transition zone is controlled, including bare terminal end 1, the shaft shoulder 2 and mixing needle 3, the shaft shoulder 2 one end is connected with bare terminal end 1, and the other end is connected with mixing needle 3, is circumferentially with 1 annular protrusion 4 along mixing needle 3.Mixing needle 3 between the shaft shoulder 2 and annular protrusion 4, its shape is flaring type from the shaft shoulder 2 to the direction of annular protrusion 4, and whole stirring-head is integrated manufacture.The other end of bare terminal end 1 is fixed on friction stir welding machine main shaft.
The junction of above-mentioned annular protrusion 4 and mixing needle 3 is arc transition.
For welded steel double composite metal plate, the friction stir welding method that composite metal plate docks faying face transition zone controlled is as follows:
Step 1, cleaning double-level-metal composite surface, and be fixed on the table, and be positioned at below friction stir welding machine main shaft.
The position of the stirring-head that step 2, adjustment double-level-metal composite plate docking faying face transition zone are controlled, the mixing needle 3 of stirring-head making double-level-metal composite plate docking faying face transition zone controlled aligns with the weld seam of above-mentioned double-level-metal composite plate, the shaft shoulder 2 is positioned on the compound plate of double-level-metal composite plate so that the annular protrusion 4 diameter maximum of single shaft shoulder stirring-head is positioned at the combination interface place of double-level-metal composite plate.
Step 3, welding parameter is set, welds.
Step 4, welded after, lift the composite metal plate docking controlled stirring-head of faying face transition zone, the composite metal plate after welding removed.
Embodiment two
In conjunction with Fig. 5, the single shaft shoulder stirring-head that a kind of composite metal plate faying face transition zone is controlled, including bare terminal end 1, the shaft shoulder 2 and mixing needle 3, the shaft shoulder 2 one end is connected with bare terminal end 1, and the other end is connected with mixing needle 3, is circumferentially with 1 annular protrusion 4 along mixing needle 3.Mixing needle 3 between the shaft shoulder 2 and annular protrusion 4, its shape is gradual shrinkage from the shaft shoulder 2 to the direction of annular protrusion 4, and whole stirring-head is integrated manufacture.Bare terminal end (1) other end is fixed on friction stir welding machine main shaft.
The junction of above-mentioned annular protrusion 4 and mixing needle 3 is arc transition.
For welded steel double composite metal plate, the friction stir welding method that composite metal plate docks faying face transition zone controlled is as follows:
Step 1, cleaning double-level-metal composite surface, and be fixed on the table, and be positioned at below friction stir welding machine main shaft.
The position of the stirring-head that step 2, adjustment double-level-metal composite plate docking faying face transition zone are controlled, the mixing needle 3 of stirring-head making double-level-metal composite plate docking faying face transition zone controlled aligns with the weld seam of above-mentioned double-level-metal composite plate, the shaft shoulder 2 is positioned on the compound plate of double-level-metal composite plate so that the annular protrusion 4 diameter maximum of single shaft shoulder stirring-head is positioned at the combination interface place of double-level-metal composite plate.
Step 3, welding parameter is set, welds.
Step 4, welded after, lift the composite metal plate docking controlled stirring-head of faying face transition zone, the composite metal plate after welding removed.
Embodiment three
In conjunction with Fig. 6, the single shaft shoulder stirring-head that a kind of composite metal plate faying face transition zone is controlled, including bare terminal end 1, the shaft shoulder 2 and mixing needle 3, the shaft shoulder 2 one end is welded with bare terminal end 1, and the other end welds with mixing needle 3, is circumferentially with 2 annular protrusions 4 along mixing needle 3.The shaft shoulder 2 and the mixing needle 3 between the annular protrusion 4 that the shaft shoulder 2 is nearest are shaped as column type.The other end of bare terminal end 1 is fixed on friction stir welding machine main shaft.
The junction of above-mentioned annular protrusion 4 and mixing needle 3 is arc transition.
To weld three-layer metal composite plate, the friction stir welding method that composite metal plate docks faying face transition zone controlled is as follows:
Step 1, cleaning three-layer metal composite plate surface, and be fixed on the table, and be positioned at below friction stir welding machine main shaft.
The position of the stirring-head that step 2, adjustment composite metal plate docking faying face transition zone are controlled, the mixing needle of stirring-head making composite metal plate docking faying face transition zone controlled aligns with the weld seam of above-mentioned three-layer metal composite plate, the shaft shoulder 2 is positioned on the compound plate of three-layer metal composite plate so that the diameter maximum of two annular protrusions 4 of single shaft shoulder stirring-head lays respectively at the two basic change interface of three-layer metal composite plate.
Step 3, welding parameter is set, welds.
Step 4, welded after, lift the composite metal plate docking controlled stirring-head of faying face transition zone, the composite metal plate after welding removed.
Embodiment four
In conjunction with Fig. 7, the double-shaft shoulder stirring-head that a kind of composite metal plate faying face transition zone is controlled, including bare terminal end 1, the upper shaft shoulder 6, mixing needle 3 and the lower shaft shoulder 5, the upper shaft shoulder 6 one end is connected with bare terminal end 1, the other end is connected with mixing needle 3, the other end of mixing needle 3 is connected with the lower shaft shoulder 5, is circumferentially with 1 annular protrusion 4 along mixing needle 3.Mixing needle 3 between the upper shaft shoulder 6 and annular protrusion 4, its shape is gradual shrinkage from the upper shaft shoulder 6 to the direction of annular protrusion 4；Mixing needle 3 between the above-mentioned lower shaft shoulder 5 and annular protrusion 4, its shape is column type from the lower shaft shoulder 5 to the direction of annular protrusion 4.Bare terminal end 1, the upper shaft shoulder 6, mixing needle 3 and the lower shaft shoulder 5 are integrated manufacture.Bare terminal end (1) other end is fixed on friction stir welding machine main shaft.
The junction of above-mentioned annular protrusion 4 and mixing needle 3 is arc transition.
For welded steel double composite metal plate, the friction stir welding method that composite metal plate docks faying face transition zone controlled is as follows:
Step 1, cleaning double-level-metal composite surface, and be fixed on the table, and be positioned at below friction stir welding machine main shaft.
The position of the stirring-head that step 2, adjustment double-level-metal composite plate docking faying face transition zone are controlled, the mixing needle 3 of stirring-head making double-level-metal composite plate docking faying face transition zone controlled aligns with the weld seam of above-mentioned double-level-metal composite plate, the upper shaft shoulder 6 is positioned at above compound plate, the lower shaft shoulder 5 is positioned at below substrate so that the annular protrusion 4 diameter maximum of stirring-head is positioned at the combination interface place of double-level-metal composite plate.
Step 3, welding parameter is set, welds.
Step 4, welded after, lift the composite metal plate docking controlled stirring-head of faying face transition zone, the composite metal plate after welding removed.
Mixing needle 3 shape between the above-mentioned lower shaft shoulder 5 and annular protrusion 4 can also be gradual shrinkage or flaring type.Its welding method is the same.
Embodiment five
In conjunction with Fig. 8, the double-shaft shoulder stirring-head that a kind of composite metal plate faying face transition zone is controlled, including bare terminal end 1, the upper shaft shoulder 6, mixing needle 3 and the lower shaft shoulder 5, the upper shaft shoulder 6 one end is connected with bare terminal end 1, the other end is connected with mixing needle 3, the other end of mixing needle 3 is connected with the lower shaft shoulder 5, is circumferentially with 1 annular protrusion 4 along mixing needle 3.Mixing needle 3 between the upper shaft shoulder 6 and annular protrusion 4, its shape is flaring type from the upper shaft shoulder 6 to the direction of annular protrusion 4；Mixing needle 3 between the above-mentioned lower shaft shoulder 5 and annular protrusion 4, its shape is gradually expanded form from the lower shaft shoulder 5 to the direction of annular protrusion 4.Bare terminal end 1, the upper shaft shoulder 6, mixing needle 3 and the lower shaft shoulder 5 are integrated manufacture.Bare terminal end (1) other end is fixed on friction stir welding machine main shaft.
The junction of above-mentioned annular protrusion 4 and mixing needle 3 is arc transition.
For welded steel double composite metal plate, the friction stir welding method that composite metal plate docks faying face transition zone controlled is as follows:
Step 1, cleaning double-level-metal composite surface, and be fixed on the table, and be positioned at below friction stir welding machine main shaft.
The position of the stirring-head that step 2, adjustment double-level-metal composite plate docking faying face transition zone are controlled, the mixing needle 3 of stirring-head making double-level-metal composite plate docking faying face transition zone controlled aligns with the weld seam of above-mentioned double-level-metal composite plate, the upper shaft shoulder 6 is positioned at above compound plate, the lower shaft shoulder 5 is positioned at below substrate so that the annular protrusion 4 diameter maximum of double-shaft shoulder stirring-head is positioned at the combination interface place of double-level-metal composite plate.
Step 3, welding parameter is set, welds.
Step 4, welded after, lift the composite metal plate docking controlled stirring-head of faying face transition zone, the composite metal plate after welding removed.
Mixing needle 3 shape between the above-mentioned upper shaft shoulder 6 and annular protrusion 4 can also be column type, and its welding method is the same.
Mixing needle 3 shape between the above-mentioned lower shaft shoulder 5 and annular protrusion 4 can also be gradual shrinkage or column type.Its welding method is the same.
Embodiment six
In conjunction with Fig. 9, the double-shaft shoulder stirring-head that a kind of composite metal plate faying face transition zone is controlled, including bare terminal end 1, the upper shaft shoulder 6, mixing needle 3 and the lower shaft shoulder 5, the upper shaft shoulder 6 one end is welded with bare terminal end 1, the other end welds with mixing needle 3, the other end of mixing needle 3 welds with the lower shaft shoulder 5, is circumferentially with 2 annular protrusions 4 along mixing needle 3.The upper shaft shoulder 6 and the mixing needle 3 between the annular protrusion 4 that the upper shaft shoulder 6 is nearest, its shape is column type from the upper shaft shoulder 6 to the direction of annular protrusion 4；The above-mentioned lower shaft shoulder 5 and the mixing needle 3 between the annular protrusion 4 that the lower shaft shoulder 5 is nearest, its shape is gradually expanded form from the lower shaft shoulder 5 to the direction of annular protrusion 4.Bare terminal end (1) other end is fixed on friction stir welding machine main shaft.
The junction of above-mentioned annular protrusion 4 and mixing needle 3 is arc transition.
To weld three-layer metal composite plate, the friction stir welding method that composite metal plate docks faying face transition zone controlled is as follows:
Step 1, cleaning three-layer metal composite plate surface, and be fixed on the table, and be positioned at below friction stir welding machine main shaft.
The position of the stirring-head that step 2, adjustment composite metal plate docking faying face transition zone are controlled, the mixing needle 3 of stirring-head making composite metal plate docking faying face transition zone controlled aligns with the weld seam of above-mentioned three-layer metal composite plate, the upper shaft shoulder 6 is positioned at above compound plate, the lower shaft shoulder 5 is positioned at below substrate so that two annular protrusion 4 diameter maximums of double-shaft shoulder stirring-head lay respectively at the two basic change interface of three-layer metal composite plate.
Step 3, welding parameter is set, welds.
Step 4, welded after, lift the composite metal plate docking controlled stirring-head of faying face transition zone, the composite metal plate after welding removed.
Mixing needle 3 shape between the above-mentioned upper shaft shoulder 6 and annular protrusion 4 can also be gradual shrinkage or flaring type, and its welding method is the same.
Mixing needle 3 shape between the above-mentioned lower shaft shoulder 5 and annular protrusion 4 can also be gradual shrinkage or column type.Its welding method is the same.
Claims (10)
1. the friction stir welding method that a composite metal plate docking faying face transition zone is controlled, it is characterised in that method step is as follows:
Step 1, cleaning composite metal plate surface, and be fixed on the table；
The position of the stirring-head that step 2, adjustment composite metal plate docking faying face transition zone are controlled, the mixing needle of stirring-head making composite metal plate docking faying face transition zone controlled aligns with the weld seam of above-mentioned composite metal plate；
Step 3, welding parameter is set, welds；
Step 4, welded after, lift the composite metal plate docking controlled stirring-head of faying face transition zone, the composite metal plate after welding removed；
Described mixing needle is provided with at least one annular protrusion.
2. the friction stir welding method that composite metal plate according to claim 1 docking faying face transition zone is controlled, it is characterised in that: it is single shaft shoulder stirring-head or double-shaft shoulder stirring-head that above-mentioned composite metal plate docks the controlled stirring-head of faying face transition zone.
3. the friction stir welding method that composite metal plate according to claim 2 docking faying face transition zone is controlled, it is characterised in that: above-mentioned single shaft shoulder stirring-head, including
It is arranged to the bare terminal end (1) being fixed on friction stir welding machine main shaft；
The shaft shoulder (2) connected with bare terminal end (1) bottom；
The mixing needle (3) connected with the shaft shoulder (2) bottom；
Wherein, described mixing needle (3) is provided with at least one annular protrusion (4).
4. the friction stir welding method that composite metal plate according to claim 3 docking faying face transition zone is controlled, it is characterised in that: above-mentioned mixing needle (3) is provided with at least two annular protrusion (4), and said two annular protrusion (4) interval is arranged.
5. the composite metal plate according to claim 3 or 4 docks the friction stir welding method that faying face transition zone is controlled, it is characterised in that: the junction of above-mentioned annular protrusion (4) and mixing needle (3) is arc transition.
6. the composite metal plate according to claim 3 or 4 docks the friction stir welding method that faying face transition zone is controlled, it is characterized in that: the mixing needle (3) between the above-mentioned shaft shoulder (2) and the distance shaft shoulder (2) nearest annular protrusion (4), its shape is gradual shrinkage, flaring type or column type from the shaft shoulder (2) to the direction of annular protrusion (4)；Above-mentioned annular protrusion (4) is positioned at composite metal plate faying face place.
7. the friction stir welding method that composite metal plate according to claim 2 docking faying face transition zone is controlled, it is characterised in that: above-mentioned double-shaft shoulder stirring-head includes
It is arranged to the bare terminal end (1) being fixed on friction stir welding machine main shaft；
The upper shaft shoulder (6) connected with bare terminal end (1) bottom；
The mixing needle (3) connected with the upper shaft shoulder (6) bottom；
The lower shaft shoulder (5) connected with mixing needle (3) bottom；
Wherein, described mixing needle (3) is provided with at least one annular protrusion (4).
8. the friction stir welding method that composite metal plate according to claim 7 docking faying face transition zone is controlled, it is characterised in that: above-mentioned mixing needle (3) is provided with at least two annular protrusion (4), and said two annular protrusion (4) interval is arranged.
9. the composite metal plate according to claim 7 or 8 docks the friction stir welding method that faying face transition zone is controlled, it is characterised in that: the junction of above-mentioned annular protrusion (4) and mixing needle (3) is arc transition.
10. the double-shaft shoulder stirring-head for composite metal plate welding according to claim 7 or 8, it is characterized in that: the above-mentioned upper shaft shoulder (6) and the mixing needle (3) between the annular protrusion (4) that the upper shaft shoulder (6) is nearest, its shape is gradual shrinkage, flaring type or column type from the upper shaft shoulder (6) to the direction of annular protrusion (4)；The above-mentioned lower shaft shoulder (5) and the mixing needle (3) between the annular protrusion (4) that the lower shaft shoulder (5) is nearest, its shape is gradual shrinkage, flaring type or column type from the lower shaft shoulder (5) to the direction of annular protrusion (4)；Above-mentioned annular protrusion (4) is positioned at composite metal plate faying face place.
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| CN108154004B (en) * | 2017-12-26 | 2020-01-14 | 哈尔滨工业大学 | Transition layer material selection method based on evaluation of bonding force of transition layer on epitaxial film and substrate |
| CN111215829B (en) * | 2020-03-27 | 2022-02-11 | 重庆工商大学 | Repair method for friction stir welding assisted laser cladding pump impeller blade |
| CN111571045A (en) * | 2020-05-22 | 2020-08-25 | 中国石油天然气集团有限公司 | Welding method of copper-steel composite plate |
| CN114406681A (en) * | 2022-01-20 | 2022-04-29 | 青岛力晨新材料科技有限公司 | Method for rolling metal composite plate by friction welding assembly |
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| JP3954547B2 (en) * | 2003-08-22 | 2007-08-08 | 本田技研工業株式会社 | Friction stir welding method and friction stir welding |
| US7163136B2 (en) * | 2003-08-29 | 2007-01-16 | The Boeing Company | Apparatus and method for friction stir welding utilizing a grooved pin |
| US20100081005A1 (en) * | 2008-09-26 | 2010-04-01 | Jong-Ning Aoh | Friction Stir Welding Tool and Weld Metal Structure with Plural Onion Rings |
| CN101530947B (en) * | 2009-04-08 | 2012-07-04 | 西安交通大学 | Method for preparing bimetal composite plate by stirring friction braze welding |
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| CN104607796A (en) | 2015-05-13 |
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