CN101468421A - Agitating friction riveting device and riveting method - Google Patents
Agitating friction riveting device and riveting method Download PDFInfo
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- CN101468421A CN101468421A CN 200710159201 CN200710159201A CN101468421A CN 101468421 A CN101468421 A CN 101468421A CN 200710159201 CN200710159201 CN 200710159201 CN 200710159201 A CN200710159201 A CN 200710159201A CN 101468421 A CN101468421 A CN 101468421A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J15/00—Riveting
- B21J15/02—Riveting procedures
- B21J15/027—Setting rivets by friction heating
Abstract
The invention relates to a fixedly-connecting technique for board points, in particular to a stirring, rubbing and riveting device and a riveting method. The device comprises a driving rod, a rivet II and a rigidity pad, wherein the driving rod which can be matched with the rivet II and drive the rivet II to rotate is arranged above the rivet; the rigidity pad is arranged below the rivet II; the driving rod is matched with the rivet II; and a board is arranged between the rivet II and the rigidity pad. The method comprises: firstly, aligning the rigidity pad and the driving rod; secondly, placing the connected board and the rivet II in sequence, lifting the driving rod down, making the driving rod matched with the rivet II completely, and starting the driving rod to drive the rivet II to rotate synchronously; heating and softening the local of the connected board under the action of the pressure and rubbing heat, making a local material of the connected board fully flow under the action of the rubbing heat and mechanical stir along with continual rotating and down-moving of the rivet II; and filling a groove II on the rigidity pad and a rivet neck space of the rivet II to realize metallurgical bonding of the rivet II and the board and complete stirring, rubbing and riveting joints.
Description
Technical field:
The present invention relates to the sheet material point and be solidly connected technology, be specially a kind of agitating friction riveting set and clinching method.
Background technology:
Resistance spot welding and riveted joint are the main method that the sheet metal point is solidly connected always, in each industrial circle extensive use.In recent years the energy and environmental protection pressure increase day by day in the world, and automobile industry presses for body lightening to reduce fuel consume and exhaust emissions.Replacing steel to make vehicle body with alloy in lightweight such as aluminium alloy, magnesium alloys is a kind of effective body lightening approach.The point that adopts traditional resistance spot welding method to carry out aluminium alloy, magnesium alloy plate is solidly connected the very big difficulty of existence.On the one hand spot-wedling electrode is sticking decreases seriously, is difficult to adapt to extensive auto-producing requirement, and point quality is wayward on the other hand, often produces shrinkage cavity, crackle, not defective such as seam, and weldering nuclear size instability.When assembling, adopts car body of aluminum alloy a kind of novel method of attachment---the spot welding that self-pierce riveting (self-piercing rivet) replacement is traditional abroad.The self-pierce riveting technology is different from traditional riveted joint, it does not need to rivet preceding boring, two boards material 3 overlapping being placed in the middle of impact bar 2 and the mould 4 during riveted joint, impact bar 2 applies the head of a power at rivet I 5 downwards along sleeve 1, rivet I 5 passes the upper plate 31 of two overlapping sheet materials 3 then, and because back side mould 4 effects of lower plate 32 make rivet I 5 natures separately inner in lower plate 32, thereby the mechanical fasteners that reaches self-locking connects, and detailed process is seen Fig. 1 (a)-Fig. 1 (f).
External mainly is to offer the impact bar impulsive force with cylinder or electric power from riveting technology, the equipment more complicated.Domesticly invented a kind of explosion type self-pierce riveting method in recent years, be with the blast impulse to be driving force with the main distinction of external self-pierce riveting technology, significantly simplify, gently changed the riveting equipment system, it is more efficient, cheap that the point of aluminium alloy is solidly connected, and the joint anti-fatigue performance obviously improves.
Yet, no matter be any self-pierce riveting technology, be used for that the magnesium alloy plate point is solidly connected or aluminium alloy and magnesium alloy dissimilar materials point are solidly connected and have all run into huge difficulty,, can't bear the strain that produces in the riveted joint process and produce cracking phenomena because magnesium alloy plate cold deformation ability is not good.For solving magnesium plate self-pierce riveting cracking problem, it is the magnesium alloy self-pierce riveting method of feature with the preheating mould that foreign study mechanism has attempted a kind of, and purpose is to allow magnesium alloy be elevated to the good temperature of plasticity earlier rivet again.This method is because of efficient and the very difficult practicality of control problem.In addition, the new method that nearest both at home and abroad a kind of friction stir spot-welding technology of studying also is a kind of substitutional resistance spot welding, it is without rivet, but utilize the stirring-head 6 of rotation at a high speed to press down two-layer (or multilayer) sheet material 3 that overlays on the rigid liner, utilize fricative heat to make and reach a kind of thermoplasticity state by weldering sheet material 7, local thermoplastic metal is under the stirring action of stirring-head, fully flow and be mixed into one, final result has reached the effect that point is solidly connected, shown in Fig. 2 (a)-Fig. 2 (c).This method will be stayed next hole at affixed center of point, for high-strength steel sheet material, the affixed head of point firmly degree still can, but for light weight boards such as aluminium alloy, magnesium alloys, the affixed head of point is firm inadequately.
Summary of the invention:
The purpose of this invention is to provide a kind of agitating friction clinching method and riveting set, it is to use some rivet, that utilize frictional heat and stirring action to be solidly connected, and, finishes after the friction stir process as interim stirring-head with rivet, for good and all stay in a little affixed head, claim the agitating friction riveted joint here.The present invention is applicable to aluminium alloy, magnesium alloy, copper alloy, macromolecular material and is that the composite board point of base is solidly connected with them, no matter is that homogeneous material connects or dissimilar materials connects.
Technical scheme of the present invention is:
A kind of agitating friction riveting set, this device comprises drive rod, rivet II and rigid liner, rivet II top is provided with the drive rod that can match, drive rivet II rotation with rivet II, rivet II below is provided with rigid liner, drive rod matches with rivet II, and sheet material places between rivet II and the rigid liner.
Described agitating friction riveting set, drive rod one end is provided with can match with rivet II top, and its other end is established the shaft shoulder; Rivet II is the integrative-structure of nail lid, nail neck and nail end upper and lower settings, and nail covers centre of surface and is provided with the groove I that cooperates with top formation convex-concave; Rigid liner is the block of upper surface band groove.
Described agitating friction riveting set, the diameter of the shaft shoulder is bigger than the diameter of nail lid.
Described agitating friction riveting set, top is polygon prism or polygonal pyramid platform shape; Perhaps, the shape of " 1 " font driver bit or " ten " word flower driver bit.
Described agitating friction riveting set, nail lid are cylinder or truncated cone-shaped, are flat above it or band curvature; The nail end is flat, sphere, round platform, polygonal pyramid shape, polygonal pyramid platform shape or sharp; The nail neck is between the nail end and nail lid, and the nail neck is cylindrical or truncated cone-shaped, and its side has 0-10 parallel grooves or spiral grooves.
Described agitating friction riveting set, the groove II on the liner are truncated cone-shaped, cylindrical, polygon prism or many terrace with edges shape, and the volume of the volume of groove II and rivet II is suitable.
Described agitating friction riveting set, rivet II material are carbon steel, stainless steel, titanium alloy, tungsten alloy, nickel base superalloy, carbide alloy, ceramic particle reinforced aluminium base composite material, ceramic particle enhancing magnesium base composite material or pottery and ceramic matric composite.
Described agitating friction riveting set, there are 0-10 layers of heterogeneous coating on the rivet surface, comprising: aluminium and aluminium alloy covered, zinc and Zinc alloy coated, copper and copper alloy coating, nickel and nickel-alloy coating, chrome coating, titanium or titanium alloy coating, ceramic matric composite coating or polymeric coating layer.
A kind of agitating friction clinching method utilizes above-mentioned agitating friction riveting set, and concrete steps are as follows:
At first, with rigid liner and drive rod centering centering; Then, will be connected sheet material and rivet II sets in order, drive rod descends, and drive rod is cooperated fully with rivet II, 10-50000 newton that exert pressure, and drive rod begins to drive rivet II rotation, 300-10000 rev/mins of velocities of rotation simultaneously; Under the effect of pressure and frictional heat, be connected sheet material local heating, softening, rivet II sinks gradually, and sheet material is clamp-oned among the groove II on the rigid liner gradually; Along with constantly rotating, rivet II moves down, it is fully mobile under frictional heat and mechanical agitation to be connected the sheet material local material, fill up groove II on the rigid liner and the nail neck bit space of rivet II, make rivet II and sheet material realize metallurgical binding, finish the agitating friction riveted joint.
Described agitating friction clinching method, when nail lid and sheet material upper surface fully at ordinary times, keep-up pressure and rotated 0-300 seconds.
The point that agitating friction riveted joint provided by the invention also is a kind of substitutional resistance spot welding is solidly connected method, and it combines the advantage of self-pierce riveting and friction stir spot welding, has avoided each contented deficiency, is that a kind of high-quality, efficient, cheap point are solidly connected new method.Compare with resistance spot welding, self-pierce riveting and friction stir spot welding, the concrete beneficial effect of the present invention is as follows:
1, compare with resistance spot welding, agitating friction is riveted on and forms in affixed process of point, being connected sheet material does not melt all the time, neither has the electrode pick-up problem, the various defectives of having avoided metal molten to produce in the process of setting more again.This advantage also is that self-pierce riveting and friction stir spot welding have;
2, compare with self-pierce riveting, agitating friction riveted joint does not require that being connected sheet material has excellent temperature-room type plasticity, can be suitable for the aluminium alloy of magnesium alloy and heat treatment reinforcement yet, and this point is that self-pierce riveting is not available.And the used rivet of agitating friction riveted joint can realize metallurgical binding through (zinc-plated, aluminising, nickel plating, chromium plating etc.) after the suitable surface treatment with being connected sheet material in the riveted joint process, and quality of connection is better than the pure mechanical bond of self-pierce riveting;
3, compare with friction stir spot welding, agitating friction riveted joint uses rivet as " interim stirring-head ", finishes after the friction that is connected sheet material, stirring, the kneading process, for good and all stays in a little affixed.This point is different from uses the fixedly friction stir spot welding of stirring-head, the latter finish a little be solidly connected after, stay next hole putting in affixed.Obviously the former connection reliability will significantly be better than the latter.
Description of drawings:
Fig. 1 (a)-Fig. 1 (f) is a self-pierce riveting schematic diagram in the prior art.
Fig. 2 (a)-Fig. 2 (c) is a friction stir spot welding schematic diagram in the prior art.
Fig. 3 forms schematic diagram for agitating friction clinching method structure of the present invention.
Fig. 4 (a)-Fig. 4 (e) is agitating friction riveted joint principle schematic of the present invention.
Among the figure, 1 sleeve; 2 impact bars; 3 sheet materials; 31 upper plates; 32 lower plates; 4 moulds; 5 rivet I; 6 stirring-heads; 7 by weldering sheet material; 8 drive rods; 9 rivet II; 10 liners; 11 is top; 12 groove I; 13 nail lids; 14 nail necks; The 15 nail ends; 16 groove II; 17 shaft shoulders.
The specific embodiment:
As shown in Figure 3, agitating friction riveting set structure of the present invention mainly comprises rivet rotation drive rod 8, rivet II9 and rigid liner 10 3 parts, rivet II9 top is provided with the drive rod 8 that can match, drive rivet II9 rotation with rivet II9, rivet II9 below is provided with rigid liner 10, and sheet material 3 places between rivet II9 and the rigid liner 10.
Among Fig. 3, the termination of rivet rotation drive rod 8 bottoms is to cooperate the key job position of transmitting moment of torsion with rivet II9, it as a tape spool take on top, rivet rotates drive rod 8 one ends and is provided with can match with rivet II9 top 11, its other end is established the shaft shoulder 17.Top 11 can be a polygon prism or polygonal pyramid platform shape, as six prisms, hexagonal pyramid platform, quadrangular, tetragonous cone table, triangular prism, triangular frustum etc., also can be the shape of " 1 " font driver bit or " ten " word flower driver bit.Top 11 rear is the shaft shoulder 17, and its diameter covers 13 the big 0-20mm of diameter (cover diameter according to nail and decide, cover diameter 8mm as nail, preferable shaft shoulder diameter is 12mm) than nail, exerts pressure to rivet II9 with top 11 during work.When rivet II9 sink to nail cover 13 be connected sheet material 3 upper surfaces near one when flat, the shaft shoulder 17 is owing to cover 13 diameters big slightly than following closely, so the overlap compacting that rivet II9 can be extruded is combined into one with sheet material again.In addition, diameter covers the 13 big slightly shaft shoulders 17 than nail and can play the effect that prevents that rivet II9 from excessively sinking.The power of rivet rotation drive rod 8 can come from electro-motor, air motor or the like can provide the device that rotatablely moves.
Among Fig. 3, rivet II9 is divided into nail and covers 13, follows closely neck 14 and the nail ends 15 3 part, highly is 1-20mm.The nail lid is cylinder or truncated cone-shaped, height 0-20mm (it is preferable generally getting the thick sum of sheet material), and maximum cross-section diameter 3-20mm, the nail face of covering can be flat, also can be with certain curvature, radius of curvature is not less than 5mm.Nail covers 13 upper surface centers a groove I12 who cooperates with the top formation convex-concave of drive rod.The nail end 15, is in rivet II9 bottom, height 0-20mm is (for the rivet of 4mm height, nail end height is preferably 1mm), the nail end 15 can be flat, also can be sphere, round platform, polygonal pyramid shape, polygonal pyramid platform shape or sharp, radius of curvature 0.01-400mm bottom, maximum cross-section area 0.1-315mm2.Nail neck 14 cover between 13 with nail at the nail end 15, height 0-20mm (, follow closely the neck height and be preferably 2mm) for the rivet of 4mm height, following closely neck 14 can be cylindrical or truncated cone-shaped, on 0-10 parallel grooves or spiral grooves can be arranged.The rivet material comprises that carbon steel, stainless steel, titanium alloy, tungsten alloy, nickel base superalloy, carbide alloy, ceramic particle reinforced aluminium base composite material, ceramic particle strengthen magnesium base composite material, pottery and ceramic matric composite.There are 0-10 layers of (being preferably one deck) heterogeneous coating on the rivet surface, comprising: aluminium and aluminium alloy covered, zinc and Zinc alloy coated, copper and copper alloy coating, nickel and nickel-alloy coating, chrome coating, titanium or titanium alloy coating, ceramic matric composite coating, polymeric coating layer.Rivet surface uses coating benefits to be: slow down or avoid electrochemical corrosion, help rivet and combine between the realization atom with being connected between the sheet material.
Among Fig. 3, rigid liner 10 is blocks of a band groove II16, and its effect is: clamp with drive rod 6, rivet II9 and be connected sheet material 3, accept riveting pressure; Accept the part sheet material of being forced down by rivet.Groove II16 on the liner 10 can be truncated cone-shaped, cylindrical, polygon prism and many terrace with edges shape, the degree of depth 0-10mm is (for the rivet of 4mm height, the liner degree of depth is preferably 1mm), maximum cross section area 1-500mm2 of groove II16, the volume of the volume of groove II16 and rivet II9 is roughly suitable.
Agitating friction riveting process process of the present invention is as follows:
Shown in Fig. 4 (a)-Fig. 4 (e), at first with rigid liner 10 and drive rod 8 centering centerings (promptly allow drive rod 8 coaxial) with the groove II16 on the rigid liner 10, to be connected sheet material 3 then and rivet II9 sets in order, drive rod 8 descends, make top 11 with rivet II9 on groove I12 cooperate fully, exert pressure 10-50000 newton (as the 2+2mm aluminum alloy plate materials, exert pressure and be preferably 3000 newton), drive rod 8 begins to drive rivet II9 rotation simultaneously, 300-10000 rev/mins of velocities of rotation (as the 2+2mm aluminum alloy plate materials, velocity of rotation is preferably 1000 rev/mins).Under the effect of pressure and frictional heat, be connected sheet material local heating, softening, rivet II9 sinks gradually, and sheet material 3 is clamp-oned among the groove II16 on the rigid liner 10 gradually, produces some overlaps more or less at sheet material 3 upper surfaces simultaneously.Along with constantly rotating, rivet II9 moves down, it is fully mobile under frictional heat and mechanical agitation to be connected sheet material 3 local material, fill up groove II 16 and nail space, neck 14 position on the rigid liner 10, when nail cover 13 and sheet material 3 upper surfaces complete a when flat, keep-up pressure and rotate 0-300 seconds (as the 2+2mm aluminum alloy plate materials, keep-up pressure and rotation is preferably 10 seconds), enlarge the thermoplasticity flow region of sheet material on the one hand, make overlap also reach the thermoplasticity state on the other hand, recombine into one with its pressing and with peripheral sheet material.Suddenly stop the rotation of drive rod 6, lift, finish an agitating friction riveted joint.
See that from type of attachment it is a riveted joint, but in fact the plasticity flow region of rivet periphery sheet material has been realized metallurgical binding fully, and many times (as: zinc-plated rivet to magnesium alloy plate or aluminising rivet to aluminum alloy plate materials) rivet and sheet material have also been realized metallurgical binding, this point is different fully with general riveting machine combination, and firmly degree is far above the latter.
Embodiment
1, LF2 aluminum alloy plate materials agitating friction riveted joint
Sheet material specification: 2mm+2mm.
Rivet II material, size, shape and surface state: material is high-strength structural carbon steel, height 4mm, and nail covers diameter 8mm, nail end diameter 4mm, nail neck diameter 3mm.Nail lid, the nail end all are flat, and the nail face of covering has the groove I of " ten " word flower shape, and the nail neck is with groove not, and rivet II surface does not have coating.
Rivet rotation drive rod shape and size: the shape of the top employing in end " ten " word flower driver bit, shaft shoulder diameter 11mm.
The groove II shape and the size of rigid liner: groove II is a truncated cone-shaped, and last bottom surface diameter is 8mm and 7mm, degree of depth 1mm, and bottom surface all is with fillet on the round platform.
Driving force source: direct current generator, rated power 3000W, 0-3000 rev/mins of rotating speeds.
Key process parameter: welding pressure 3000N, 1000 rev/mins of welding rotating speeds, 10 seconds bottom retention times.
2, AZ31 magnesium alloy plate agitating friction riveted joint
Sheet material specification: 2mm+2mm.
Rivet II material, size, shape and surface state: material is high-strength structural carbon steel, height 4mm, and nail covers diameter 8mm, nail end diameter 4mm, nail neck diameter 4mm.Nail lid, the nail end all are flat, and the nail face of covering has the groove I of triangular taper type, and the nail neck is with groove not, rivet II plating zinc on surface.
Rivet rotation drive rod shape and size: the shape of end top employing triangular frustum, shaft shoulder diameter 11mm.
The groove II shape and the size of rigid liner: groove II is a truncated cone-shaped, and last bottom surface diameter is 8mm and 7mm, degree of depth 1mm, and bottom surface all is with fillet on the round platform.
Driving force source: direct current generator, rated power 3000W, 0-3000 rev/mins of rotating speeds.
Key process parameter: welding pressure 2000N, 900 rev/mins of welding rotating speeds, 10 seconds bottom retention times.
3, LF2 aluminium alloy plate+AZ31 magnesium alloy plate agitating friction riveted joint
Sheet material specification: 2mm+2mm; Aluminium sheet in the above, the magnesium plate is below.
Rivet II material, size, shape and surface state: material is high-strength structural carbon steel, height 4mm, and nail covers diameter 8mm, nail end diameter 4mm, nail neck diameter 4mm.Nail lid, the nail end all are flat, and the nail face of covering has the groove I of " ten " word flower shape, nail neck band derotation thread groove, rivet II alitizing.
Rivet rotation drive rod shape and size: the shape of the top employing in end " ten " word flower driver bit, shaft shoulder diameter 11mm.
The groove II shape and the size of rigid liner: groove II is a truncated cone-shaped, and last bottom surface diameter is 8mm and 7mm, degree of depth 1mm, and bottom surface all is with fillet on the round platform.
Driving force source: direct current generator, rated power 3000W, 0-3000 rev/mins of rotating speeds.
Key process parameter: welding pressure 3000N, 1000 rev/mins of welding rotating speeds, 5 seconds bottom retention times.
4,6061 aluminium alloy multilayer plate agitating frictions riveted joint
Sheet material specification: 1mm+1mm+1mm+1mm.
Rivet II material, size, shape and surface state: material is high-strength structural carbon steel, height 4mm, and nail covers diameter 8mm, nail end diameter 4mm, nail neck diameter 4mm.Nail lid, the nail end all are flat, and the nail face of covering has the groove I of " ten " word flower shape, nail neck band derotation thread groove, rivet II alitizing.
Rivet rotation drive rod shape and size: the shape of the top employing in end " ten " word flower driver bit, shaft shoulder diameter 11mm.
The groove II shape and the size of rigid liner: groove II is a truncated cone-shaped, and last bottom surface diameter is 8mm and 7mm, degree of depth 1mm, and bottom surface all is with fillet on the round platform.
Driving force source: direct current generator, rated power 3000W, 0-3000 rev/mins of rotating speeds.
Key process parameter: welding pressure 3000N, 1000 rev/mins of welding rotating speeds, 10 seconds bottom retention times.
5,7075 high strength alumin ium alloy sheet material agitating frictions riveted joint
Sheet material specification: 4mm+4mm.
Rivet II material, size, shape and surface state: material is the 1Cr18Ni9Ti stainless steel, height 8mm.Nail lid is flat, and diameter 16mm has the groove I of tetragonous cone table shape above.The nail end is a sphere, radius of curvature 8mm, maximum cross-section diameter 6mm.The nail neck is a truncated cone-shaped, big end diameter 10mm, and handle diameter 6mm has the reverse thread groove on the cylinder.Rivet II surface does not have coating.
Rivet rotation drive rod shape and size: the shape of the top employing tetragonous cone table in end, shaft shoulder diameter 20mm.
The groove II shape and the size of rigid liner: groove II is a truncated cone-shaped, and last bottom surface diameter is 12mm and 10mm, degree of depth 2mm, and bottom surface all is with fillet on the round platform.
Driving force source: direct current generator, rated power 3000W, 0-3000 rev/mins of rotating speeds.
Key process parameter: welding pressure 10000N, 2500 rev/mins of welding rotating speeds, 20 seconds bottom retention times.
6, aluminum alloy plate materials and TPO agitating friction riveted joint
Sheet material specification: 2mm+2.5mm; Aluminium sheet in the above, polyolefin panels is below.
Rivet II material, size, shape and surface state: material is high-strength structural carbon steel, height 5mm, and nail covers diameter 9mm, nail end diameter 5mm, nail neck diameter 4mm.Nail lid, the nail end all are flat, and the nail face of covering has the groove I of " ten " word flower shape, nail neck band derotation thread groove, and rivet II surface does not have coating.
Rivet rotation drive rod shape and size: the shape of the top employing in end " ten " word flower driver bit, shaft shoulder diameter 12mm.
The groove II shape and the size of rigid liner: groove II is a truncated cone-shaped, and last bottom surface diameter is 9mm and 8mm, degree of depth 1mm, and bottom surface all is with fillet on the round platform.
Driving force source: direct current generator, rated power 3000W, 0-3000 rev/mins of rotating speeds.
Key process parameter: welding pressure 3000N, 1000 rev/mins of welding rotating speeds, 5 seconds bottom retention times.
Claims (10)
1, a kind of agitating friction riveting set, it is characterized in that: this device comprises drive rod (8), rivet II (9) and rigid liner (10), rivet II (9) top is provided with the drive rod (8) that can match, drive rivet II (9) rotation with rivet II (9), rivet II (9) below is provided with rigid liner (10), and sheet material (3) places between rivet II (9) and the rigid liner (10).
2, according to the described agitating friction riveting set of claim 1, it is characterized in that: drive rod (8) one ends are provided with top (11) that can match with rivet II (9), and its other end is established the shaft shoulder (17); Rivet II (9) is provided with top (11) and forms the groove I (12) that convex-concave cooperates for the integrative-structure of nail lid (13), nail neck (14) and the nail end (15) upper and lower settings, nail lid (13) upper surface center; Rigid liner (10) is the block of upper surface band groove (17).
3, according to the described agitating friction riveting set of claim 2, it is characterized in that: the diameter of the shaft shoulder (17) is bigger than the diameter of nail lid (13).
4, according to the described agitating friction riveting set of claim 2, it is characterized in that: top (11) are polygon prism or polygonal pyramid platform shape; Perhaps, the shape of " 1 " font driver bit or " ten " word flower driver bit.
5, according to the described agitating friction riveting set of claim 2, it is characterized in that: nail lid (13) is cylinder or truncated cone-shaped, is flat above it or band curvature; The nail end (15) is flat, sphere, round platform, polygonal pyramid shape, polygonal pyramid platform shape or sharp; Nail neck (14) is positioned between the nail end (15) and the nail lid (13), and nail neck (14) is cylindrical or truncated cone-shaped, and its side has 0-10 parallel grooves or spiral grooves.
6, according to the described agitating friction riveting set of claim 2, it is characterized in that: the groove II (16) on the liner (10) is truncated cone-shaped, cylindrical, polygon prism or many terrace with edges shape, and the volume of the volume of groove II (16) and rivet II (9) is suitable.
7, according to the described agitating friction riveting set of claim 1, it is characterized in that: rivet II (9) material is carbon steel, stainless steel, titanium alloy, tungsten alloy, nickel base superalloy, carbide alloy, ceramic particle reinforced aluminium base composite material, ceramic particle enhancing magnesium base composite material or pottery and ceramic matric composite.
8, according to the described agitating friction riveting set of claim 1, it is characterized in that: there are 0-10 layers of heterogeneous coating on the rivet surface, comprising: aluminium and aluminium alloy covered, zinc and Zinc alloy coated, copper and copper alloy coating, nickel and nickel-alloy coating, chrome coating, titanium or titanium alloy coating, ceramic matric composite coating or polymeric coating layer.
9, a kind of agitating friction clinching method is characterized in that, utilizes the described agitating friction riveting set of one of claim 1-8, and concrete steps are as follows:
At first, with rigid liner (10) and drive rod (8) centering centering; Then, will be connected sheet material (3) and rivet II (9) sets in order, drive rod (8) descends, drive rod (8) is cooperated fully with rivet II (9), 10-50000 newton that exert pressure, drive rod (8) begins to drive rivet II (9) and rotates 300-10000 rev/mins of velocities of rotation simultaneously; Under the effect of pressure and frictional heat, be connected sheet material local heating, softening, rivet II (9) sinks gradually, and sheet material (3) is clamp-oned among the groove II (16) on the rigid liner (10) gradually; Along with constantly rotating, rivet II (9) moves down, it is fully mobile under frictional heat and mechanical agitation to be connected sheet material (3) local material, fill up groove II (16) on the rigid liner (10) and nail neck (14) space, position of rivet II (9), make rivet II (9) and sheet material (3) realize metallurgical binding, finish the agitating friction riveted joint.
10, according to the described agitating friction clinching method of claim 9, it is characterized in that, when nail lid (13) and sheet material (3) upper surface complete one are flat, keep-up pressure and rotated 0-300 seconds.
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| CN 200710159201 CN101468421A (en) | 2007-12-26 | 2007-12-26 | Agitating friction riveting device and riveting method |
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| CN101817142A (en) * | 2010-05-20 | 2010-09-01 | 上海交通大学 | Self-piercing frictional rivet welding connecting device |
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| CN101890564A (en) * | 2010-07-06 | 2010-11-24 | 上海交通大学 | Special metal resistance rivet welding device |
| CN102248112A (en) * | 2011-06-10 | 2011-11-23 | 郑州大学 | Stirring friction riveting device and method for light metal plate |
| CN102489853A (en) * | 2011-11-18 | 2012-06-13 | 上海交通大学 | Rivet-free resistance rivet welding connection device and rivet-free resistance rivet welding connection method |
| CN102990221A (en) * | 2012-12-04 | 2013-03-27 | 中国科学院金属研究所 | Embedded metal material connecting method with sealing effect |
| CN103240564A (en) * | 2013-04-26 | 2013-08-14 | 上海交通大学 | Machinery-solid phase composite connecting device and machinery-solid phase composite connecting method |
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| WO2016124647A1 (en) * | 2015-02-05 | 2016-08-11 | Ejot Gmbh & Co. Kg | Connecting element for producing a friction-welding connection |
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- 2007-12-26 CN CN 200710159201 patent/CN101468421A/en active Pending
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