CN107052601A - A kind of compound stud friction welding method of metal arc friction - Google Patents
A kind of compound stud friction welding method of metal arc friction Download PDFInfo
- Publication number
- CN107052601A CN107052601A CN201710153728.1A CN201710153728A CN107052601A CN 107052601 A CN107052601 A CN 107052601A CN 201710153728 A CN201710153728 A CN 201710153728A CN 107052601 A CN107052601 A CN 107052601A
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- Prior art keywords
- stud
- friction
- welding
- arc
- preheating
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Classifications
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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
- B23K28/00—Welding or cutting not covered by any of the preceding groups, e.g. electrolytic welding
- B23K28/02—Combined welding or cutting procedures or apparatus
-
- 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
-
- 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
- B23K9/00—Arc welding or cutting
- B23K9/20—Stud welding
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Arc Welding In General (AREA)
Abstract
A kind of metal arc friction is combined stud friction welding method, and its step is：Welding position is treated using preheating current source to put into preheating, preheating 2min weldments are reached after 400 DEG C, preheating current source is stopped, arc stud welding machine is started working, and stud termination is stopped in position striking to be welded, arcing, subsequent arc stud welding machine, stud spinning force is given in friction-welding machine work, friction head, which gives tangential force, makes it carry out butt welding, and cooled and solidified, subsequent Welded Joints carry out post weld heat treatment.
Description
Technical field
Metal welding techniques of the present invention, more particularly to metal arc-friction are combined stud welding technology.
Background technology
In hull cabin, weapons panzer vehicle body, various pressure vessel inside and outside walls, bridge and other field it is equal
Extensively using steel, aluminium, the welding of copper stud, the field that stud welding is related to is increasingly extensive.So-called arc stud welding is with stud (or class
As component) electric arc heated ignited between termination and the surface of weldment and melted join position, be then rapidly squeezed in one
Play and formed a kind of arc-welding method of welding point.Electric arc stud welding is usually used in stud termination to be welded to plane or curved surface
On, riveting, drilling, SMAW, soldering etc. can be replaced, there is quick and convenient, economy, reliable in quality.
The welding of stud is current most widely used technology using electric arc stud welding, and different methods can be used real
It is existing.Stud welding due to quick heating and rapidly cooling cause welding point easily to crack, the defect such as incomplete fusion, for
Some such as weapons special material carbon equivalents are higher, under the conditions of stud welding, friable tissues easily occur, produce welding cold cracking
Line defect, causes welding quality it cannot be guaranteed that, it is necessary to research and develop novel technological method, breakthrough key technology is thick in solution
The technical barrier of steel plate stud welding.The introducing of electric arc, effectively solves to cause welding quality not good by heat transfer inhomogeneities, obtains
Without being mingled with, the welding point of non-oxidation, substantially increase joint quality.Due to metal oxide can be squeezed using friction welding (FW)
Go out；Pressure crystallisation by cooling；Tangential force makes dislocation energy increase so as to which material has more excellent performance.
The content of the invention
Stud friction welding method is combined it is an object of the invention to provide a kind of metal arc-friction.
The present invention is that a kind of metal arc-friction is combined stud friction welding method, and its step is：Treated using preheating current source
Welding position is put into preheating, and preheating 2min weldments reach after 400 DEG C that preheating current source is stopped, and arc stud welding machine is started working,
Stud termination is stopped in position striking to be welded, arcing, subsequent arc stud welding machine, and stud spinning is given in friction-welding machine work
Power, friction head, which gives tangential force, makes it carry out butt welding, and cooled and solidified, subsequent Welded Joints carry out post weld heat treatment.
Compared with prior art, its remarkable advantage is the present invention：1st, the introducing of electric arc can heat weldment；Remove weldment end
Foul and injustice on face, the welding preparation of reduction end face, formation liquid metals layer, exclude oxide and mistake during for friction and upset
Thermometal provides advantage；And foul and injustice on burn-up weldment end face；Protective effect and formation liquid metals
Layer, effectively solves the weld defect such as joint incomplete fusion, slag inclusion as caused by heat transfer inhomogeneities, and welding quality is significantly improved；
2nd, strength of joint and joint fusion rate are very high；3rd, due to that can be extruded metal oxide using friction welding (FW)；Pressure crystallisation by cooling；
It is preferable that tangential force makes dislocation energy increase material property；4th, special protected mode need not be used, self-insurance is played in the introducing of electric arc
The effect of shield, can be obtained without being mingled with, the welding point of non-oxidation.5th, introduce thermograde after electric arc to significantly change, cause gold
Oxide is substantially reduced between category, substantially increases joint quality；And because electric arc introducing greatly reduces the work(of friction-welding machine
Rate.The present invention can be used for the welding of foreign material metallic stud.
Brief description of the drawings
Fig. 1 is the flow chart of the present invention；Fig. 2, Fig. 3, Fig. 4, Fig. 5 are electric arc and the compound stud welding sides of friction of the present invention
Method step schematic diagram；Fig. 6 is the electric arc and arc current, friction-stir head rotating speed during the compound stud welding of friction of the present invention
And the schematic diagram that joint distance is changed over time.
Embodiment
The present invention is that a kind of metal arc-friction is combined stud friction welding method, and its step is：Treated using preheating current source
Welding position is put into preheating, and preheating 2min weldments reach after 400 DEG C that preheating current source is stopped, and arc stud welding machine is started working,
Stud termination is stopped in position striking to be welded, arcing, subsequent arc stud welding machine, and stud spinning is given in friction-welding machine work
Power, friction head, which gives tangential force, makes it carry out butt welding, and cooled and solidified, subsequent Welded Joints carry out post weld heat treatment.
The stud set in original state, welding gun is in lifting state, electric arc now is dropped into welding position, now
Stud rifle by the end face of electric arc heated weldment and makes end plane metal melt after 400 DEG C of electric arc heated still in lifting state, spiral shell
Post welding gun declines welding position and carries out striking welding, and electric arc, which is resulted from, makes interface locations occur part between stud and steel plate workpiece
Fusing, in welded condition holding, subsequent stud welding gun advances downwardly stud, and stud welding process terminates, stud workpiece
Matrix carries out local compression, and arc voltage declines, arc extinction, and development friction rotation and pressurization between stud and substrate etc. are made
Firmly, the thermoplastic deformation of axial direction is further increased, the arc stud welding of friction phase is completed.Last Welded Joints carry out heat
Processing, it is to avoid local temperature decline is too fast to cause joint quality to decline, it is ensured that obtain excellent welding point, whole welding process
Terminate.In the technical scheme, electric arc thermal source is main heat source, and preheating and heat treatment have improvement temperature field, reduction
Stress avoids producing the function of defect, and two liquid phases friction welding (FW) rotary presser under higher thermograde and superheat state ensure that
Extrusion metal oxide, crystallisation by cooling obtain shaping the excellent joint of performance attractive in appearance.
The present invention is that metal arc-friction is combined stud friction welding method, and it is concretely comprised the following steps：
（1）Stud welding gun drops to the welding region of workpiece to be welded, and ignite electric arc；
（2）During stud welding, weldment is preheating to after 400 DEG C, stops electric arc work, is introduced friction welding technological and is welded；
（3）By the end face of electric arc heated weldment and melt end plane metal, until when weldment end is up to 620 DEG C, stud and base
Apply the active forces such as friction rotation and pressurization between plate, crystal grain is deflected to same direction, further increases the thermoplastic of axial direction
Deformation, completes the arc stud welding of friction phase；
（4）Stud welding gun rises to exceeds 10cm positions apart from weldment, is heat-treated after then being carried out to welding screw joint area,
Whole welding process terminates.
Above-described metal arc-friction is combined stud friction welding method, and self-shield is carried out using electric arc butt-welding fitting.
Above-described metal arc-friction is combined stud friction welding method, it is characterised in that by electric arc and friction-welding machine
Energy is provided.
Electric arc of the present invention and the compound stud welding method of friction and its device is described in detail with embodiment below.
Embodiment：As shown in Fig. 1 and Fig. 2, Fig. 3, Fig. 4, Fig. 5, carried out with diameter 28mm aluminum stud and 20mm steel plate
Electric arc with exemplified by the compound arc stud welding of friction, by a diameter of 26mm, length for 68mm the advance clamping of aluminum stud on stud welding gun,
Stud is preheated with preheating current source, then electric arc is treated welding zone domain and heated, the heat time controls 10s by system, plus
Thermal power 600w, heating surfaces of work pieces temperature is 350 DEG C -400 DEG C, and heating finishes rear voltage and declined, arc extinction, subsequent stud
The active forces such as development friction rotation and pressurization between substrate, further increase axial direction deformation, complete friction phase
Arc stud welding, welding current is 2100A, weld interval 1200ms.After the completion of welding, stud welding gun rises, and Welded Joints are carried out
Annealing, using power 600w, heats 30s.After annealing is finished, whole welding process terminates.
The fragility that the present invention is produced for the high constraint (restraint) degree of cut deal and carbon equivalent high joint by quick heating and Fast Cooling
Tissue and possible cold crack defect, have obtained high-quality metal material and have connected and reduce what is produced in welding process
The defect of intermetallic compound and oxide-film.
Claims (4)
1. a kind of metal arc-friction is combined stud friction welding method, it is characterised in that its step is：Using preheating current source pair
Preheating is entered in position to be welded, and preheating 2min weldments reach after 400 DEG C that preheating current source is stopped, and arc stud welding machine starts work
Make, stud termination is stopped in position striking to be welded, arcing, subsequent arc stud welding machine, stud is given in friction-welding machine work
Spinning force, friction head, which gives tangential force, makes it carry out butt welding, and cooled and solidified, subsequent Welded Joints carry out post weld heat treatment.
2. metal arc-friction according to claim 1 is combined stud friction welding method, it is characterised in that：It is specifically walked
Suddenly it is：
（1）Stud welding gun drops to the welding region of workpiece to be welded, and ignite electric arc；
（2）During stud welding, weldment is preheating to after 400 DEG C, stops electric arc work, is introduced friction welding technological and is welded；
（3）By the end face of electric arc heated weldment and melt end plane metal, until when weldment end is up to 620 DEG C, stud and base
Apply the active forces such as friction rotation and pressurization between plate, crystal grain is deflected to same direction, further increases the thermoplastic of axial direction
Deformation, completes the arc stud welding of friction phase；
（4）Stud welding gun rises to exceeds 10cm positions apart from weldment, is heat-treated after then being carried out to welding screw joint area,
Whole welding process terminates.
3. metal arc-friction according to claim 1 is combined stud friction welding method, it is characterised in that utilize electric arc pair
Weldment carries out self-shield.
4. metal arc-friction according to claim 1 is combined stud friction welding method, it is characterised in that by electric arc and rub
Wipe welding machine and energy is provided.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710153728.1A CN107052601A (en) | 2017-03-15 | 2017-03-15 | A kind of compound stud friction welding method of metal arc friction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710153728.1A CN107052601A (en) | 2017-03-15 | 2017-03-15 | A kind of compound stud friction welding method of metal arc friction |
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| Publication Number | Publication Date |
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| CN107052601A true CN107052601A (en) | 2017-08-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710153728.1A Pending CN107052601A (en) | 2017-03-15 | 2017-03-15 | A kind of compound stud friction welding method of metal arc friction |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070130741A1 (en) * | 2005-11-28 | 2007-06-14 | Gkss-Forschungszentrum Geesthact Gmbh | Method of connecting a metallic bolt to a plastic workpiece |
| US7695227B2 (en) * | 2006-09-05 | 2010-04-13 | Gm Global Technology Operations, Inc. | Fastener for attachment by friction stir processing |
| CN102091861A (en) * | 2010-12-21 | 2011-06-15 | 南京工程学院 | Metal stud welding system combined with friction heat source |
| CN103753029A (en) * | 2013-12-23 | 2014-04-30 | 江苏烁石焊接科技有限公司 | Electrical arc metal stud welding method and device under frictional cleaning homogenization |
| CN105562954A (en) * | 2016-03-06 | 2016-05-11 | 南京理工大学 | Compound robot heat source welding system by double methods of friction stud and friction stir |
-
2017
- 2017-03-15 CN CN201710153728.1A patent/CN107052601A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070130741A1 (en) * | 2005-11-28 | 2007-06-14 | Gkss-Forschungszentrum Geesthact Gmbh | Method of connecting a metallic bolt to a plastic workpiece |
| US7695227B2 (en) * | 2006-09-05 | 2010-04-13 | Gm Global Technology Operations, Inc. | Fastener for attachment by friction stir processing |
| CN102091861A (en) * | 2010-12-21 | 2011-06-15 | 南京工程学院 | Metal stud welding system combined with friction heat source |
| CN103753029A (en) * | 2013-12-23 | 2014-04-30 | 江苏烁石焊接科技有限公司 | Electrical arc metal stud welding method and device under frictional cleaning homogenization |
| CN105562954A (en) * | 2016-03-06 | 2016-05-11 | 南京理工大学 | Compound robot heat source welding system by double methods of friction stud and friction stir |
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Application publication date: 20170818 |