CN101491856A - Large forgings compression arc and induction composite heat-source repair-welding device and method - Google Patents
Large forgings compression arc and induction composite heat-source repair-welding device and method Download PDFInfo
- Publication number
- CN101491856A CN101491856A CNA200910025645XA CN200910025645A CN101491856A CN 101491856 A CN101491856 A CN 101491856A CN A200910025645X A CNA200910025645X A CN A200910025645XA CN 200910025645 A CN200910025645 A CN 200910025645A CN 101491856 A CN101491856 A CN 101491856A
- Authority
- CN
- China
- Prior art keywords
- welding
- repair
- repair welding
- arc
- large forgings
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Landscapes
- Forging (AREA)
Abstract
The invention discloses a large forged piece compressed electric arc and induction composite heat source repair welding device and a method thereof. The repair welding device comprises a six-axis robot, a handling frame which can move up and down and backwards and forwards, a work table and a welding gun, wherein the six-axis robot is arranged on the handling frame; an inductor and the welding gun are arranged on the robot; a temperature sensor is arranged aside the inductor; and the welding gun can generate compressed electric arcs. The repair welding method comprises the following steps: firstly, preparing a protectant for repair welding and deposited metals according to material compositions of a large forged piece; secondly, presetting a program and related parameters; thirdly, placing the protectant on a repair welding area, and performing induction heating on the repair welding area; fourthly, acquiring the temperature of the repair welding area, judging whether the preset value is reached, and performing continuous heating if the preset value is not reached; fifthly, removing the inductor after the heating is over, and igniting the compressed electric arcs for starting welding; and sixthly, performing induction heating after the welding is over. The invention realizes preheating before repair welding, and the strength of a repair welding joint is more than that of the deposited metals.
Description
Technical field
The invention belongs to extraordinary welder and welding method thereof, particularly a kind of large forgings compression arc and induction composite heat-source repair-welding devices and methods therefor at large forgings surface deposited metal deposited metal.
Background technology
The arc surfacing technology is to adopt heat fused wire, metal tape, metal powders etc. such as melt pole electrical arc, submerged arc, TIG electric arc, plasma arc, and molten metal is deposited over matrix surface, solidifies the back and forms overlay cladding.Conventional overlaying method such as consumable electrode and submerged arc overlay welding, welding wire automatic feed, electric arc result between welding wire and the parent metal, the means of fusion arc welding silk forms molten drop, and is deposited at matrix surface through freedom, short circuit or flux-wall guided transfer, forms overlay cladding, efficient is higher, and the matrix fusing is many; TIG built-up welding and plasma surfacing electric arc result between tungsten electrode and the workpiece, and welding wire is sent into below, the bright clear zone of electric arc and obtained heating and melt to splash into matrix surface, solidifies the back and forms overlay cladding.
Large forgings is generally tens of heavily approximately to hundreds of kilograms, the repair welding area is generally less, the overall thermal input is little, the Fast Heating of built-up welding and quick cooling easily make the forging welding point produce cold crack, the large forgings volume is big, thermal capacity is big, and rapid heat dissipation adopts conventional overlaying process, forging easily produces the incomplete fusion defective, thereby avoids occurring crackle and the incomplete fusion defective is one of main difficult point of large forgings repair welding.There is not the prefabricated research report that presets the deposited welding process method of repair welding material of automatic condensed electric arc+induction composite heat power supply for large forgings at present.
Summary of the invention
The object of the present invention is to provide prefabricated deposited welder and the method thereof that presets the repair welding material of a kind of large forgings automatic condensed electric arc loading induction composite heat-source.
The technical solution that realizes the object of the invention is: a kind of large forgings compression arc and induction composite heat-source repair-welding device, comprise six-joint robot, can about, the crosshead that seesaws, workbench, welding gun; On the described crosshead six-joint robot is set, inductor and welding gun are set in this robot, inductor is other to be provided with temperature sensor, and welding gun can produce compression arc.
The repair method of large forgings compression arc and induction composite heat-source repair-welding device may further comprise the steps:
Step 1, according to the material composition of large forgings, preparation repair welding protective agent; Size and form according to the repair welding zone prepare the repair welding deposited metal;
Step 4, eddy-current heating is carried out in the repair welding zone; By six-joint robot control inductor, make it carry out eddy-current heating to the repair welding zone according to the default eddy-current heating program and the track of operation;
Step 9, the forging after the repair welding is carried out the extrusion molding modification, finish repair welding.
The present invention compared with prior art, 1), adopted composite heat power supply its remarkable advantage:, the preheating before the repair welding has been realized in the temperature field of having improved forging before the heap repair welding; 2), can be according to the form size and the forging composition in need repair welding zone, adopt the prefabricated deposited metal of method of powder precompressed, guarantee shape size and composition, composition and performance adjustment are very easy to; 3), adopt compression arc, can change the energy density of compression arc according to repair welding material material, form size, obtain the joint of high-quality; 4), adopt composite heat power supply, can carry out after-baking at postwelding, adjust cooling velocity, obtain the tissue that requires; 5), the repair welding strength of joint is greater than the intensity of deposited metal self.
Description of drawings
Fig. 1 is the structural representation of large forgings compression arc and induction composite heat-source repair-welding device of the present invention.
Fig. 2 is the flow chart of large forgings compression arc and induction composite heat-source repair-welding method of the present invention.
Fig. 3 is the compression arc nozzle arrangements schematic diagram of large forgings compression arc and induction composite heat-source repair-welding device of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing the present invention is described in further detail.
In conjunction with Fig. 1, a kind of large forgings compression arc and induction composite heat-source repair-welding device of the present invention comprises six-joint robot 1, welding gun 2, can about, the crosshead 5 that seesaws, welding system 6, robot controller 7, workbench 8, temperature sensor 9; On the described crosshead 5 six-joint robot 1 is set, inductor 2-2 and welding gun 2 are set in this robot, inductor 2-2 is other to be provided with temperature sensor 9, and tungsten electrode 2-3 and nozzle 2-4 are set in the welding gun 2, and tungsten electrode 2-3 and nozzle 2-4 can produce compression arc 2-1.
Make repair welding deposited metal 4 and protective agent 4-1 according to large forgings 3 materials and size design before the repair welding; adjust the parameter of compression arc 2-1; design compression arc movement locus and posture of welding torch program design composite sensing Moving Heat Sources program, and related data is stored in the robot controller 7.Earlier protective agent 4-1 is placed on the repair welding zone during repair welding, inductor 2-2 by six-joint robot 1 control carries out eddy-current heating according to default track to the repair welding zone, and temperature sensor 9 work are when detected temperatures reaches required value, inductor 2-2 is removed in 6 robot 1 motions; Preset repair welding deposited metal 4 simultaneously, produce compression arc 2-1 between tungsten electrode 2-3 and the nozzle 2-4, welding gun 2 drives compression arc 2-1 with 6 robots 1 and crosshead 5 motions, and welding gun 2 is moved to the position of repair welding deposited metal 4, begins welding; After welding gun motion finished, blow-out was also removed welding gun by 6 robots 1, then inductor 2-2 is moved into the repair welding zone, heated mobilely, and the heating power that progressively successively decreases is removed inductor 2.
In conjunction with Fig. 2, large forgings compression arc and induction composite heat-source repair-welding method of the present invention may further comprise the steps:
Step 1, according to the material composition of large forgings, preparation repair welding protective agent; Size and form according to the repair welding zone prepare the repair welding deposited metal;
Step 4, eddy-current heating is carried out in the repair welding zone; By six-joint robot control inductor, make it carry out eddy-current heating to the repair welding zone according to the default eddy-current heating program and the track of operation;
Step 9, the forging after the repair welding is carried out the extrusion molding modification, finish repair welding.
Protective agent granularity in the above-mentioned steps 1 is the 60-180 order.Protective agent can protect the large forgings of eddy-current heating process not oxidized; the molten bath that can protect simultaneously the fusing of repair welding deposited metal to produce is not oxidized; deposited metal adopts the method preparation of powder precompressed; its alloying component and large forgings are roughly the same; carbon content is than the low 10-40% of large forgings, and carbon equivalent is hanged down 20-50%.The compression arc parameter can be according to the size of repair welding material material, form size, thickness and forging etc., changes plasma duct diameter and length, adjusts the energy density of compression arc, obtains the forging repair welding joint of high-quality.
Below in conjunction with embodiment, the present invention will be further described.
With the dark 3mm forging of 1500mm diameter 40Cr disc end face repair welding Ф 60mm is example.Shape size and 40Cr material according to the dark 3mm of repair welding zone Ф 60mm; adopt iron powder, Cr powder to form middle carbon and contain Cr repair welding deposited metal; carbon content is controlled at 0.25-0.3%; and be pressed into the unsintered powder metallurgy piece of the high 3.3mm of Ф 59.8mm; select the protective agent (J05-2) that to remove Cr, Fe, Si, Mn element for use, order several 120.
Protective agent (J05-2) 20g put into treat the repair welding zone, set circular inductor Ф 40mm, make circus movement; track diameter Ф 54mm has set welding gun 2 repair welding campaigns for along the profound track that moves, and is divided into 12 rectilinear motions; amplitude of fluctuation is 2mm, and data are stored in the system controller 7.
Design compression arc 2-1 parameter, in conjunction with Fig. 3, arc parameters of the present invention can be nozzle bore 2mm, the first compression angle α
1Be 100 °, the second compression angle α
2Angle is 90 °, and radius R is 25mm, and the first nozzle orifice throat length h value is 2mm, the second nozzle orifice throat length h
1Value is 1.5mm, the 3rd nozzle orifice throat length h
2Value is 1.5mm.
The inductor 2-2 that adopts 1 control of 6 robots of patent device makes the circus movement of track diameter Ф 54mm according to Ф 59.8mm size and rounded form, when Temperature Detector 9 detects forging 3 repair welding regional temperatures and reaches 180-200 ℃, stops eddy-current heating; Compression arc 2-1 between welding gun 2 tungsten electrode 2-3 and the nozzle 2-4 ignites, welding gun 2 drives compression arc 2-1 with 6 robots 1 and crosshead 5 motions, welding gun 2 is moved to the home position of repair welding deposited metal 4, begin welding, electric arc is with crosshead 5 and six-joint robot 1 motion, its track and attitude are according to the size of repair welding zone and repair welding deposited metal 4, form and position are determined in advance, promptly according to 12 rectilinear motions, amplitude of fluctuation is 2mm, when moving to the repair welding round edge, welding gun keeps welding gun and Edge Distance 0.5mm, stop 0.3s, welding current 220-230A, arc voltage 23-23.5V welds fast 15cm/min, welding finishes, remove welding gun 2, start eddy-current heating, inductor 2-2 remakes the circular motion of Ф 54mm under the drive of six-joint robot 1, its peak power is 2/3 of a pre-thermal power, behind the eddy-current heating 30 seconds, progressively reduce the composite sensing heating power, close the composite sensing heating power supply after 30 seconds.
Claims (6)
1, a kind of large forgings compression arc and induction composite heat-source repair-welding device comprises six-joint robot [1], can about, the crosshead [5] that seesaws, workbench [8], welding gun [2]; It is characterized in that: six-joint robot [1] is set on the described crosshead [5], inductor [2-2] and welding gun [2] are set in this robot, inductor [2-2] is other to be provided with temperature sensor [9], and welding gun [2] can produce compression arc [2-1].
2, a kind of repair method based on the described large forgings compression arc and induction composite heat-source repair-welding device of claim 1 is characterized in that, may further comprise the steps:
Step 1, according to the material composition of large forgings, preparation repair welding protective agent; Size and form according to the repair welding zone prepare the repair welding deposited metal;
Step 2, robot controller program and compression arc parameter are preset;
Step 3, protective agent is placed on the repair welding zone;
Step 4, eddy-current heating is carried out in the repair welding zone; By six-joint robot control inductor, make it carry out eddy-current heating to the repair welding zone according to the default eddy-current heating program and the track of operation;
Step 5, collection repair welding district temperature, and judge whether the temperature in repair welding zone reaches preset value, if reach then execution in step 6, otherwise continue heating;
Step 6, remove inductor, the repair welding deposited metal is preset at the repair welding zone, and welding gun is moved to the position of repair welding deposited metal, according to the default compression arc parameter of step 2 and the welding condition compression arc that ignites, track and the posture of welding torch according to the default electric arc operation of step 2 begins welding then;
Step 7, utilize current sensor, voltage sensor to gather electric current, the magnitude of voltage of welding process, carry out welding parameter observing and controlling by the welding schedule that is stored in the controller, the electric current that successively decreases is received arc, finishes the welding gun motor program, and removes welding gun;
Step 8, eddy-current heating is carried out in the repair welding zone, the induction heat source power of successively decreasing is removed inductor;
Step 9, the forging after the repair welding is carried out the extrusion molding modification, finish repair welding.
3, large forgings compression arc and induction composite heat-source repair-welding method according to claim 2 is characterized in that, protectant granularity is the 60-180 order in the step 1.
4, large forgings compression arc and induction composite heat-source repair-welding method according to claim 2, it is characterized in that, deposited metal in the step 1 adopts the method preparation of powder precompressed, its alloying component and large forgings are roughly the same, carbon content is than the low 10-40% of large forgings, and carbon equivalent is hanged down 20-50%.
5, large forgings compression arc and induction composite heat-source repair-welding method according to claim 2 is characterized in that, the compression arc parameter of setting in the step 2 is nozzle bore 2mm, the first compression angle α
1Be 100 °, the second compression angle α
2Be 90 °, radius R is 25mm, and the first nozzle orifice throat length h value is 2mm, the second nozzle orifice throat length h
1Value is 1.5mm, the 3rd nozzle orifice throat length h
2Value is 1.5mm.
6, large forgings compression arc and induction composite heat-source repair-welding method according to claim 2 is characterized in that, in the welding process of step 6, welding gun drives compression arc and moves to apart from 0.3-0.8mm place, large forgings edge, stops 0.2-2 second.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910025645XA CN101491856B (en) | 2009-03-05 | 2009-03-05 | Large forgings compression arc and induction composite heat-source repair-welding device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910025645XA CN101491856B (en) | 2009-03-05 | 2009-03-05 | Large forgings compression arc and induction composite heat-source repair-welding device and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101491856A true CN101491856A (en) | 2009-07-29 |
| CN101491856B CN101491856B (en) | 2010-11-03 |
Family
ID=40922743
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910025645XA Active CN101491856B (en) | 2009-03-05 | 2009-03-05 | Large forgings compression arc and induction composite heat-source repair-welding device and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101491856B (en) |
Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102489845A (en) * | 2011-11-18 | 2012-06-13 | 南京理工大学 | Hybrid heat source stud welding method using welding robot and hybrid heat source stud welding system with welding robot |
| CN103038016A (en) * | 2010-05-21 | 2013-04-10 | 伊利诺斯工具制品有限公司 | Welding system comprising an induction heating system, induction heating system and method of heating a welding or cutting work piece |
| WO2015048090A1 (en) * | 2013-09-25 | 2015-04-02 | Illinois Tool Works Inc. | Metal heating and working systems and method with heating and/or cooling using an induction heating head |
| CN105531062A (en) * | 2013-07-16 | 2016-04-27 | 伊利诺斯工具制品有限公司 | Additive manufacturing systems for and a method of surface overlay before joining, using a plurality of anchoring materials and temperature control device |
| CN106392348A (en) * | 2016-12-02 | 2017-02-15 | 广东省智能制造研究所 | Additive manufacturing method and additive manufacturing device for aluminum alloy based on laser-double-MIG composite heat source |
| US9913320B2 (en) | 2014-05-16 | 2018-03-06 | Illinois Tool Works Inc. | Induction heating system travel sensor assembly |
| CN108115304A (en) * | 2017-12-30 | 2018-06-05 | 安徽泉盛化工有限公司 | A kind of Intelligentized regulating and controlling method of welding process |
| CN108284299A (en) * | 2017-12-25 | 2018-07-17 | 北京航星机器制造有限公司 | A kind of aluminum alloy complex component electric arc increases material and hot extrusion composite manufacturing method |
| CN108544151A (en) * | 2018-03-26 | 2018-09-18 | 北京石油化工学院 | Built-up welding robot and ring type separator pile-up welding system |
| CN108817611A (en) * | 2018-06-29 | 2018-11-16 | 山东大学 | It is a kind of to force to restrain type electric arc metal increasing material manufacturing device |
| US10244588B2 (en) | 2014-10-14 | 2019-03-26 | Illinois Tool Works Inc. | Hybrid induction heating/welding assembly |
| US10462853B2 (en) | 2013-05-28 | 2019-10-29 | Illinois Tool Works Inc. | Induction pre-heating and butt welding device for adjacent edges of at least one element to be welded |
| US10638554B2 (en) | 2014-12-23 | 2020-04-28 | Illinois Tool Works Inc. | Systems and methods for interchangeable induction heating systems |
| US10792682B2 (en) | 2017-10-02 | 2020-10-06 | Illinois Tool Works Inc. | Metal manufacturing systems and methods using mechanical oscillation |
| US10863591B2 (en) | 2014-05-16 | 2020-12-08 | Illinois Tool Works Inc. | Induction heating stand assembly |
| CN112122815A (en) * | 2020-09-30 | 2020-12-25 | 江苏逸飞激光设备有限公司 | Welding system and module side plate welding method |
| US10974337B2 (en) | 2015-08-17 | 2021-04-13 | Illinois Tool Works Inc. | Additive manufacturing systems and methods |
| US11076454B2 (en) | 2014-05-16 | 2021-07-27 | Illinois Tool Works Inc. | Induction heating system temperature sensor assembly |
| US11197350B2 (en) | 2014-05-16 | 2021-12-07 | Illinois Tool Works Inc. | Induction heating system connection box |
| US11510290B2 (en) | 2014-05-16 | 2022-11-22 | Illinois Tool Works Inc. | Induction heating system |
-
2009
- 2009-03-05 CN CN200910025645XA patent/CN101491856B/en active Active
Cited By (29)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103038016A (en) * | 2010-05-21 | 2013-04-10 | 伊利诺斯工具制品有限公司 | Welding system comprising an induction heating system, induction heating system and method of heating a welding or cutting work piece |
| CN103038016B (en) * | 2010-05-21 | 2015-12-09 | 伊利诺斯工具制品有限公司 | The method comprising the welding system of heating system, heating system and welding or cut workpiece are heated |
| US11072035B2 (en) | 2010-05-21 | 2021-07-27 | Illinois Tool Works Inc. | Auxiliary welding heating system |
| CN102489845A (en) * | 2011-11-18 | 2012-06-13 | 南京理工大学 | Hybrid heat source stud welding method using welding robot and hybrid heat source stud welding system with welding robot |
| US10462853B2 (en) | 2013-05-28 | 2019-10-29 | Illinois Tool Works Inc. | Induction pre-heating and butt welding device for adjacent edges of at least one element to be welded |
| US11833623B2 (en) | 2013-07-16 | 2023-12-05 | Illinois Tool Works Inc. | Additive manufacturing system for joining and surface overlay |
| CN105531062A (en) * | 2013-07-16 | 2016-04-27 | 伊利诺斯工具制品有限公司 | Additive manufacturing systems for and a method of surface overlay before joining, using a plurality of anchoring materials and temperature control device |
| US10875116B2 (en) | 2013-07-16 | 2020-12-29 | Illinois Tool Works Inc. | Additive manufacturing heating control systems and methods |
| US10543549B2 (en) | 2013-07-16 | 2020-01-28 | Illinois Tool Works Inc. | Additive manufacturing system for joining and surface overlay |
| CN105555457B (en) * | 2013-09-25 | 2021-02-09 | 伊利诺斯工具制品有限公司 | Metal heating and processing system and method with heating and/or cooling using induction heating head |
| WO2015048090A1 (en) * | 2013-09-25 | 2015-04-02 | Illinois Tool Works Inc. | Metal heating and working systems and method with heating and/or cooling using an induction heating head |
| CN105555457A (en) * | 2013-09-25 | 2016-05-04 | 伊利诺斯工具制品有限公司 | Metal heating and working systems and method with heating and/or cooling using an induction heating head |
| US11076454B2 (en) | 2014-05-16 | 2021-07-27 | Illinois Tool Works Inc. | Induction heating system temperature sensor assembly |
| US11510290B2 (en) | 2014-05-16 | 2022-11-22 | Illinois Tool Works Inc. | Induction heating system |
| US11197350B2 (en) | 2014-05-16 | 2021-12-07 | Illinois Tool Works Inc. | Induction heating system connection box |
| US10863591B2 (en) | 2014-05-16 | 2020-12-08 | Illinois Tool Works Inc. | Induction heating stand assembly |
| US9913320B2 (en) | 2014-05-16 | 2018-03-06 | Illinois Tool Works Inc. | Induction heating system travel sensor assembly |
| US10244588B2 (en) | 2014-10-14 | 2019-03-26 | Illinois Tool Works Inc. | Hybrid induction heating/welding assembly |
| US10440784B2 (en) | 2014-10-14 | 2019-10-08 | Illinois Tool Works Inc. | Reduced-distortion hybrid induction heating/welding assembly |
| US11172549B2 (en) | 2014-10-14 | 2021-11-09 | Illinois Tool Works Inc. | High-productivity hybrid induction heating/welding assembly |
| US10638554B2 (en) | 2014-12-23 | 2020-04-28 | Illinois Tool Works Inc. | Systems and methods for interchangeable induction heating systems |
| US10974337B2 (en) | 2015-08-17 | 2021-04-13 | Illinois Tool Works Inc. | Additive manufacturing systems and methods |
| CN106392348A (en) * | 2016-12-02 | 2017-02-15 | 广东省智能制造研究所 | Additive manufacturing method and additive manufacturing device for aluminum alloy based on laser-double-MIG composite heat source |
| US10792682B2 (en) | 2017-10-02 | 2020-10-06 | Illinois Tool Works Inc. | Metal manufacturing systems and methods using mechanical oscillation |
| CN108284299A (en) * | 2017-12-25 | 2018-07-17 | 北京航星机器制造有限公司 | A kind of aluminum alloy complex component electric arc increases material and hot extrusion composite manufacturing method |
| CN108115304A (en) * | 2017-12-30 | 2018-06-05 | 安徽泉盛化工有限公司 | A kind of Intelligentized regulating and controlling method of welding process |
| CN108544151A (en) * | 2018-03-26 | 2018-09-18 | 北京石油化工学院 | Built-up welding robot and ring type separator pile-up welding system |
| CN108817611A (en) * | 2018-06-29 | 2018-11-16 | 山东大学 | It is a kind of to force to restrain type electric arc metal increasing material manufacturing device |
| CN112122815A (en) * | 2020-09-30 | 2020-12-25 | 江苏逸飞激光设备有限公司 | Welding system and module side plate welding method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101491856B (en) | 2010-11-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101491856B (en) | Large forgings compression arc and induction composite heat-source repair-welding device and method | |
| CN105555457B (en) | Metal heating and processing system and method with heating and/or cooling using induction heating head | |
| CN101468419B (en) | Induction and electrical arc composite heat source stud welding method | |
| CN102896398A (en) | Aluminum alloy arc spot welding method based on CMT (Cold Metal Transmission Welding) and welding system | |
| US10240222B2 (en) | Current schedule for optimized reaction metallurgical joining | |
| CN102554401B (en) | Method for welding copper oxygen lance end for steelmaking with steel pipe sub | |
| CN105033421B (en) | Dissimilar metal electric arc glue weldering connection system and method | |
| CN102665995A (en) | Resistance welding method, resistance-welded member, resistance welder, control apparatus for resistance welder, control method and control program for resistance welder, resistance welding evaluation method, and resistance welding evaluation program | |
| CN101468420B (en) | Hollow stud composite turn arc heat source welding method | |
| CN102107320A (en) | Pulsed switch-on preheating flash butt welding process for steel rims of heavy trucks | |
| CN103008830A (en) | CMT (Cold Metal Transfer)-based light metal arc spot welding method and device thereof | |
| CN103692094A (en) | Method and device for welding studs by applying resistor-electric arc composite heat source | |
| JP5904288B2 (en) | Indirect spot welding equipment | |
| US11161191B2 (en) | Process and apparatus for welding workpiece having heat sensitive material | |
| Baghel et al. | Pulse TIG welding: Process, automation and control | |
| CN104139244A (en) | Single-face traceless welding method for stainless steel panels | |
| CN102019505A (en) | Method for laser cladding by using laser cladding welding wire | |
| CN103521866B (en) | The copper wire lead resistance brazing technology method of the controlled single-side double-point of a kind of welding temperature | |
| CN110788503B (en) | Method for forming advanced dissimilar metal composite structure of 45# steel/tin-lead alloy | |
| US20220097161A1 (en) | Systems and methods to control a wire electrode at the end of a weld | |
| CN107717249B (en) | Arc-friction welding composite welding torch and welding method thereof | |
| CN111408834B (en) | Device and method for cold metal transition welding on-line laser post-heat treatment | |
| US20080135529A1 (en) | Method of resistance butt welding | |
| CN221019070U (en) | Manual argon arc welding device with adjustable time | |
| Somoskői et al. | CMT pin–Define the shape of the welded pin through welding parameters |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 213300 No. 8, Zhongguancun Avenue, Liyang, Jiangsu Patentee after: Jiangsu Jinyuan High-end Equipment Co., Ltd. Patentee after: Nanjing University of Science and Technology Address before: 213376 No. 868 Ling Ling West Road, Jiangsu, Liyang Patentee before: Jiangsu Jinyuan Forging Co., Ltd. Patentee before: Nanjing University of Science and Technology |