CN106994546A - The common molten bath arc increasing material manufacturing TIG welding guns of multifibres and welder and increasing material manufacturing method - Google Patents
The common molten bath arc increasing material manufacturing TIG welding guns of multifibres and welder and increasing material manufacturing method Download PDFInfo
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- CN106994546A CN106994546A CN201710332032.5A CN201710332032A CN106994546A CN 106994546 A CN106994546 A CN 106994546A CN 201710332032 A CN201710332032 A CN 201710332032A CN 106994546 A CN106994546 A CN 106994546A
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- increasing material
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- 238000003466 welding Methods 0.000 title claims abstract description 99
- 239000000463 material Substances 0.000 title claims abstract description 55
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 51
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims abstract description 41
- 229910052721 tungsten Inorganic materials 0.000 claims abstract description 41
- 239000010937 tungsten Substances 0.000 claims abstract description 41
- 229910052573 porcelain Inorganic materials 0.000 claims abstract description 21
- 238000000034 method Methods 0.000 claims description 11
- 230000001681 protective effect Effects 0.000 claims description 10
- 230000005855 radiation Effects 0.000 claims description 4
- 230000008021 deposition Effects 0.000 abstract description 11
- 238000007493 shaping process Methods 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 14
- 238000010438 heat treatment Methods 0.000 description 9
- 238000010891 electric arc Methods 0.000 description 6
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- 229910045601 alloy Inorganic materials 0.000 description 4
- 239000000956 alloy Substances 0.000 description 4
- 239000004411 aluminium Substances 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 238000005336 cracking Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 239000011261 inert gas Substances 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 229910000679 solder Inorganic materials 0.000 description 2
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- 229910001069 Ti alloy Inorganic materials 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 238000001727 in vivo Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 229910052758 niobium Inorganic materials 0.000 description 1
- 239000010955 niobium Substances 0.000 description 1
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
Classifications
-
- 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
- B23K9/16—Arc welding or cutting making use of shielding gas
- B23K9/167—Arc welding or cutting making use of shielding gas and of a non-consumable electrode
-
- 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
- B23K9/04—Welding for other purposes than joining, e.g. built-up 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
- B23K9/12—Automatic feeding or moving of electrodes or work for spot or seam welding or cutting
- B23K9/133—Means for feeding electrodes, e.g. drums, rolls, motors
Abstract
The present invention relates to the common molten bath arc increasing material manufacturing TIG welding guns of multifibres and welder and increasing material manufacturing method, wherein, molten bath arc increasing material manufacturing TIG welding guns include gun body to multifibres altogether, and gun body front end sets porcelain mouth, it is characterised in that：Have inside the gun body in cavity, the cavity through hollow tungsten electrode is plugged with so as to which the front end of hollow tungsten electrode is from the port stretching of the porcelain mouth, protection air cavity is formed between gun body inwall and the hollow tungsten electrode；More than one wire feed cavity is axially provided with the hollow tungsten electrode；The other end of the gun body away from the porcelain mouth is provided with the air admission hole of connective protection source of the gas, and protects source of the gas equally to connect the wire feed cavity.The present invention has more than one due to wire feed cavity so that participate in weld job more than a root wire, deposition amount is added on the basis of high deposition efficiency, and processing efficiency is improved in increasing material manufacturing shaping.
Description
Technical field
The invention belongs to electric arc increases material manufacturing technology field, in particular multifibres altogether molten bath arc increasing material manufacturing TIG welding guns and
Welder and increasing material manufacturing method.
Background technology
TIG is welded（Tungsten Inert Gas Welding）, also known as non-melt pole inert gas tungsten electrode protection weldering.By
In the protection of argon gas, can air-isolation to the oxidation of fusing metal, so, TIG welderings are widely used in welding and are oxidized easily
Non-ferrous metal aluminium, magnesium etc. and its alloy, stainless steel, high temperature alloy, titanium or titanium alloy, also infusibility active metal（Such as molybdenum,
Niobium, zirconium etc.）, and the common material such as general carbon steel, low-alloy steel, except the exigent occasion of welding quality, do not adopt typically
Welded with TIG.But, traditional TIG welderings are limited due to the current capacity of its electrode, and arc power is adopted by a definite limitation
Paraxonic wire feed is used, weld penetration is shallow, speed of welding is small.Based on above mentioned problem, people grow up a kind of heated filament on this basis
TIG is welded, and it is a kind of high-quality, efficient, energy-conservation welding procedure, and its general principle is exactly the butt welding before welding wire is sent into molten bath
Silk carries out heating and reaches certain preheating temperature, finally realizes the purpose of high-speed and high-efficiency welding.But in hot wire TIG welding,
Welding wire is preheated substantially by the way of external resistance heating, in welding wire above with electric current, utilize the electricity of welding wire itself
Resistance heat production will produce several big technological problemses during resistance heating heated filament, and be magnetic biasing respectively so as to realize the preheating to welding wire
Blow, the fluctuation of heated filament feeding position, welding wire aoxidizes and are difficult to control to before entering molten bath, and easily produce cracking now in increasing material manufacturing
As.
In hot wire TIG welding, if the extension elongation of welding wire is e, the cross-sectional area of welding wire is S, the resistivity of solder wire material
For ρ, the heated current of welding wire is Iw, then the resistance heat power P R produced on welding wire is：PR=(I2ρe)/S .It can be seen that, when
When the resistivity of the diameter of welding wire very big, solder wire material is very low, the power of resistance heating will not reach the preheating temperature of welding wire heating
Degree, so method is only applicable to big resistivity, the situation heated compared with thin welding wire, is difficult to the high conductivity materials such as copper, aluminium
In welding, the electric current efficiency of heating surface is low, and welding wire does not reach suitable temperature.Therefore, in the urgent need to hot wire TIG welding be used for copper alloy,
Lifting during Welded in terms of hot compress efficiency, pre-heat effect, weldquality.
At present, the electric arc increases material manufacturing technology welded using TIG has been received significant attention.Increasing material manufacturing is on the surface of workpiece
Or edge carries out the welding procedure of the function metals such as one layer of deposition is wear-resisting, anti-corrosion, heat-resisting layer.Increasing material manufacturing makes to improving part
With the life-span, reasonable employment material is enhanced product performance, and reducing cost has significant economic benefit.Increasing material manufacturing is used as material list
One kind that face is modified is economical and quickly process, more and more widely the manufacture reparation applied to each industrial department part
In, mainly there are laser melting coating, arc surfacing etc..The problem of being most commonly encountered in traditional TIG welderings electric arc increasing material manufacturing precisely due to
The cracking that deposition position residual stress is excessive and causes, there is presently no the method for effectively solving the problem.
The content of the invention
It is an object of the invention to provide a kind of common molten bath arc increasing material manufacturing TIG welding guns of multifibres and welder and increasing material
Manufacture method, with low, the deposition position stress mistake that solves residence time length, deposition efficiency when traditional TIG is welded in electric arc increasing material manufacturing
Big problems of crack, is particularly suitable for the increasing material manufacturing of the active metals such as copper, aluminium and its alloy, specifically real by following technical scheme
It is existing：
Multifibres molten bath arc increasing material manufacturing TIG welding guns, including gun body altogether, gun body front end sets porcelain mouth, it is characterised in that：The rifle
Internal portion has cavity, runs through in the cavity and is plugged with hollow tungsten electrode so that the front end of hollow tungsten electrode is stretched from the port of the porcelain mouth
Go out, protection air cavity is formed between gun body inwall and the hollow tungsten electrode；Axially it is provided with the hollow tungsten electrode more than one
Wire feed cavity；The other end of the gun body away from the porcelain mouth is provided with the air admission hole of connective protection source of the gas, and protects source of the gas same
Connect the wire feed cavity.
Described multifibres molten bath arc increasing material manufacturing TIG welding guns altogether, its further design is, each wire feed cavity with
Gather setting in the relative port of workpiece.
The common molten bath arc increasing material manufacturing TIG welding guns of described multifibres, it, which is further designed, is, each wire feed cavity is equal
The even axis the week side of boss for being distributed in the hollow tungsten electrode, and the wire feed cavity port relative with workpiece is to the axis of hollow tungsten electrode
Deflection is so that the port of wire feed cavity is gathered to the axis direction of hollow tungsten electrode.
The common molten bath arc increasing material manufacturing TIG welding guns of described multifibres, it, which is further designed, is, the wire feed cavity has four
Group.
A kind of common molten bath arc increasing material manufacturing TIG weld device of multifibres, the welder includes many described in claim 1
The common molten bath arc increasing material manufacturing TIG welding guns of silk.
The common molten bath arc increasing material manufacturing TIG weld device of described multifibres, it, which is further designed, is, the welder is also
Including the more than one wire feeder corresponding with the wire feed cavity；Corresponding welding wire is respectively fed to by each wire feeder
In each wire feed cavity, the welding wire passes wire feed cavity and gathered.
A kind of utilization multifibres is total to the increasing material manufacturing method of molten bath arc increasing material manufacturing TIG weld device, and its step is：1st, first
Welding gun is adjusted so that the porcelain mouth port of welding gun is relative with workpiece soldered to be welded；2nd, persistently noted in the protection air cavity into gun body
Enter protective gas, and sprayed from porcelain mouth, protective atmosphere is formed between porcelain mouth and workpiece to be welded, then to each wire feed cavity
Inside persistently inject protective gas, emptying wire feed cavity inner air；3rd, it will be respectively fed to via wire feeder more than a root wire
Until welding wire passes wire feed cavity and gathered in the surface of workpiece to be welded in wire feed cavity；4th, the source of welding current is connected, in sky
The starting the arc between heart tungsten electrode and the soldered of workpiece, forms molten bath, and wire feeder continues wire feed, starts welding, in welding process,
Welding wire is preheated before molten bath is entered by hollow tungsten electrode heat radiation, arc heat；5th, at the end of welding, blow-out, stopping successively
Wire feed, disconnection protection gas, close the source of welding current, complete welding operation.
Advantages of the present invention is with good effect：
Improve the structure design of tungsten electrode, four uniform wire feed cavities are provided with tungsten electrode, the wire feed cavity can be used for supplying gas, sending
Silk and preheating wire welding；Preheated in hole, welding wire preheating is more uniform, and the weldquality of welding has and must improved, also simultaneously
Strengthen welding wire deposition efficiency.Because wire feed cavity has more than one so that weld job is participated in more than a root wire, in high deposition
Deposition amount is added on the basis of efficiency, processing efficiency is improved in increasing material manufacturing shaping.
Brief description of the drawings
Fig. 1 is the structural representation of welding gun embodiment of the present invention.
Embodiment
The present invention is further described below in conjunction with Figure of description and embodiment：
As shown in figure 1, molten bath arc increasing material manufacturing TIG welding guns include gun body to the multifibres altogether, gun body front end sets porcelain mouth 3, gun body
Inside has cavity, is stretched out so as to the front end of hollow tungsten electrode from the port of porcelain mouth through being plugged with hollow tungsten electrode 1 in the cavity, rifle
Protection air cavity 2 is formed between wall and hollow tungsten electrode in vivo；Four wire feed cavities are axially provided with hollow tungsten electrode, naturally it is also possible to
It is set to more than four or less than four and more than one；The other end of the gun body away from porcelain mouth is provided with connective protection source of the gas
Air admission hole, and protect source of the gas equally to connect wire feed cavity 5.
Each wire feed cavity is uniformly distributed in the axis the week side of boss of hollow tungsten electrode, and the wire feed cavity port relative with workpiece is equal
Deflected to the axis of hollow tungsten electrode so that the port of wire feed cavity is gathered to the axis direction of hollow tungsten electrode.
A kind of common molten bath arc increasing material manufacturing TIG weld device of multifibres, the welder includes foregoing multifibres congruent melting pond
Electric arc increasing material manufacturing TIG welding guns, remaining structure composition and existing TIG weld device are essentially identical, simply corresponding wire-feed motor
Structure needs to be set to multigroup, and specifically, the welder also includes the more than one wire-feed motor corresponding with wire feed cavity
Structure；Corresponding welding wire is respectively fed in each wire feed cavity by each wire feeder, and welding wire 4 passes wire feed cavity and gathered.
Wire feeder therein includes a pair of driving wheels 6 and wire reel 7, and a pair of driving wheels 6 is arranged at welding gun and wire reel 7
Between, welding wire 4 on wire reel 7 is passed through after driving wheel from the rear end feeding wire feed cavity 5 of hollow tungsten electrode 1, and from hollow tungsten electrode 1
Front end stretch out.A pair of driving wheels is symmetrical arranged, and is rotated backward, and the gap between its edge is equal with the diameter of welding wire 4, so that
Welding wire 4 is held between driving wheel and is conveyed into hollow tungsten electrode 1 with the rotation of driving wheel, and wire feed is continued for welding,
Realize the automation of wire feed process.
A kind of increasing material manufacturing method of the common molten bath arc increasing material manufacturing TIG weld device of utilization multifibres, its step is as follows：1、
First welding gun is adjusted so that the porcelain mouth port of welding gun is relative with workpiece soldered to be welded；2nd, continue in the protection air cavity into gun body
Protective gas is injected, and is sprayed from porcelain mouth, protective atmosphere is formed between porcelain mouth and workpiece to be welded, then to each wire feed chamber
Protective gas, emptying wire feed cavity inner air are persistently injected in road；3rd, will respectively it be sent more than a root wire via wire feeder
Enter in wire feed cavity until welding wire passes wire feed cavity and gathered in the surface of workpiece to be welded；4th, the source of welding current is connected,
The starting the arc between the soldered of hollow tungsten electrode and workpiece, forms molten bath, and wire feeder continues wire feed, starts welding, in welding process
In, welding wire is preheated before molten bath is entered by hollow tungsten electrode heat radiation, arc heat；5th, weld at the end of, successively blow-out, stop
Only wire feed, disconnection protection gas, close the source of welding current, complete welding operation.
The welding wire 4 of the present invention is conveyed with protective gas by the wire feed cavity 5 in hollow tungsten electrode 1.In welding, hollow tungsten
After the striking of pole 1, temperature rise, welding wire 4 in wire feed cavity 5 in the presence of the hollow heat radiation of tungsten electrode 1 and arc heat
Pre-heating temperature elevation can be carried out before into molten bath, welding wire is electrically heated compared to traditional, it is individually hot without extra addition
Silk power supply, greatly improves pre-heat effect, reduces energy consumption, structure is also simpler, and production cost is low, it is often more important that avoid
The problem of arc blow, the energy of arc-melting welding wire is reduced, to the homogeneous heating of welding wire 4, spray transfer can be formed, reduced
Heating dwell times, realize ultrahigh speed, high-quality electric arc increasing material manufacturing, improve deposition efficiency, speed of welding, reduce hydrogen blistering
Deng the generation of weld defect, weldquality is improved, the increasing material manufacturing weldering of the low electrical resistant material such as the copper that is particularly suitable for use in, aluminium and its alloy
Connect, weld preheating improves the distribution of welding temperatures at localized regions, effectively reduces deposition position residual stress, can be prevented effectively from
Because of the cracking phenomena of Preheating generation during increasing material manufacturing.In addition, the welding wire 4 in wire feed cavity 5 is in protection gas
In atmosphere, it is to avoid welding wire 4 is oxidized after preheating.
Claims (7)
1. multifibres molten bath arc increasing material manufacturing TIG welding guns, including gun body altogether, gun body front end sets porcelain mouth, it is characterised in that：It is described
Have inside gun body in cavity, the cavity through being plugged with hollow tungsten electrode so as to which the front end of hollow tungsten electrode is from the port of the porcelain mouth
Stretch out, protection air cavity is formed between gun body inwall and the hollow tungsten electrode；Axially it is provided with the hollow tungsten electrode more than one
Wire feed cavity；The other end of the gun body away from the porcelain mouth is provided with the air admission hole of connective protection source of the gas, and protects source of the gas same
Sample connects the wire feed cavity.
2. the common molten bath arc increasing material manufacturing TIG welding guns of multifibres according to claim 1, it is characterised in that each wire feed
Gather setting in the cavity port relative with workpiece.
3. the common molten bath arc increasing material manufacturing TIG welding guns of multifibres according to claim 2, it is characterised in that each wire feed
Cavity is uniformly distributed in the axis the week side of boss of the hollow tungsten electrode, and the wire feed cavity port relative with workpiece is to hollow tungsten electrode
Axis deflect so that the port of wire feed cavity is gathered to the axis direction of hollow tungsten electrode.
4. the common molten bath arc increasing material manufacturing TIG welding guns of multifibres according to claim 1, it is characterised in that the wire feed chamber
Road has four groups.
5. the common molten bath arc increasing material manufacturing TIG weld device of a kind of multifibres, it is characterised in that the welder includes claim 1
The common molten bath arc increasing material manufacturing TIG welding guns of described multifibres.
6. the common molten bath arc increasing material manufacturing TIG weld device of multifibres according to claim 4, it is characterised in that the welding
Device also includes the more than one wire feeder corresponding with the wire feed cavity；Each wire feeder divides corresponding welding wire
Do not send into each wire feed cavity, the welding wire passes wire feed cavity and gathered.
7. a kind of utilization multifibres is total to the increasing material manufacturing method of molten bath arc increasing material manufacturing TIG weld device, its step is：1st, first adjust
Whole good welding gun make it that the porcelain mouth port of welding gun is relative with workpiece soldered to be welded；2nd, persistently injected in the protection air cavity into gun body
Protective gas, and sprayed from porcelain mouth, protective atmosphere is formed between porcelain mouth and workpiece to be welded, then into each wire feed cavity
Persistently inject protective gas, emptying wire feed cavity inner air；3rd, it will be respectively fed to send more than a root wire via wire feeder
Until welding wire passes wire feed cavity and gathered in the surface of workpiece to be welded in silk cavity；4th, the source of welding current is connected, hollow
The starting the arc between tungsten electrode and the soldered of workpiece, forms molten bath, and wire feeder continues wire feed, starts welding, in welding process, weldering
Silk is preheated before molten bath is entered by hollow tungsten electrode heat radiation, arc heat；5th, at the end of welding, blow-out, stopping successively being sent
Silk, disconnection protection gas, close the source of welding current, complete welding operation.
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|---|---|---|---|
| CN201710332032.5A CN106994546A (en) | 2017-05-11 | 2017-05-11 | The common molten bath arc increasing material manufacturing TIG welding guns of multifibres and welder and increasing material manufacturing method |
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|---|---|---|---|
| CN201710332032.5A CN106994546A (en) | 2017-05-11 | 2017-05-11 | The common molten bath arc increasing material manufacturing TIG welding guns of multifibres and welder and increasing material manufacturing method |
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| CN109332858A (en) * | 2018-11-28 | 2019-02-15 | 江苏科技大学 | A kind of hollow tungsten electrode profundity melts the welding method of TIG filler wire welding slab |
| CN109693019A (en) * | 2017-10-20 | 2019-04-30 | 南京理工大学 | A method of high-strength high hard stainless steel is prepared using silk material arc-melting |
| CN110091038A (en) * | 2019-04-28 | 2019-08-06 | 江苏航运职业技术学院 | A kind of multipurpose mariages narrow clearance welding gun |
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| CN110788447A (en) * | 2019-11-12 | 2020-02-14 | 南京引力工业焊接技术研究院有限公司 | Multi-power-supply parallel multi-wire efficient arc welding device and application thereof |
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| CN109332858A (en) * | 2018-11-28 | 2019-02-15 | 江苏科技大学 | A kind of hollow tungsten electrode profundity melts the welding method of TIG filler wire welding slab |
| CN109332858B (en) * | 2018-11-28 | 2022-04-01 | 江苏科技大学 | Welding method for hollow tungsten ultra-high deep-melting TIG filler wire welding thick plate |
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| CN110340498A (en) * | 2019-07-16 | 2019-10-18 | 西南交通大学 | Hollow ring tungsten electrode GTA array silk filling increasing material manufacturing method and device |
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| CN110340487B (en) * | 2019-07-16 | 2021-06-08 | 西南交通大学 | Low-heat-input multi-wire arc additive manufacturing method and device for dissimilar metal structural part |
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| CN110788447A (en) * | 2019-11-12 | 2020-02-14 | 南京引力工业焊接技术研究院有限公司 | Multi-power-supply parallel multi-wire efficient arc welding device and application thereof |
| CN113305863A (en) * | 2021-06-23 | 2021-08-27 | 广西焊杰机器人技术有限公司 | Welding robot and welding method thereof |
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Application publication date: 20170801 |