CN107570900A - A kind of hf electric arc complex welding method - Google Patents
A kind of hf electric arc complex welding method Download PDFInfo
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- CN107570900A CN107570900A CN201710890587.1A CN201710890587A CN107570900A CN 107570900 A CN107570900 A CN 107570900A CN 201710890587 A CN201710890587 A CN 201710890587A CN 107570900 A CN107570900 A CN 107570900A
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Abstract
The invention discloses a kind of hf electric arc complex welding method, this method is compounded with two kinds of welding methods of arc welding and ratio-frequency welding, welded simultaneously to workpiece feed-in high frequency electric in electric arc, utilize the Kelvin effect and kindred effect that high frequency electric is strong, the weld seam interior in molten bath and molten bath forward position is set to produce high-frequency electrical thermal resistance, a part of welding energy is directly fed to mother metal surface to be welded, it is small with the slow limitation of speed of welding that the fusion penetration that is determined by thermal conduction mechanism of conventional arc welding can be broken through, welding penetration and welding efficiency is significantly increased.High-frequency alternating magnetic field caused by high frequency electric has certain stirring surge effect to molten pool metal simultaneously, is advantageous to improve seam organization and appearance of weld.In addition, this method, which can be additionally used in dissimilar metal, melts soldering, soldering:In the welding process using brazing flux, this method can effectively improve the striping effect of brazing flux, be greatly promoted solder metal in the especially wetting at the mother metal back side of mother metal surface and sprawl, improve appearance of weld.
Description
Technical field
The invention belongs to technologic material to process welding technology field, and in particular to a kind of high frequency-arc hybrid welding method.
Background technology
Electric arc welds the welding method maximum as most widely used, application amount, and simple with equipment, cost is cheap, operation side
The advantage such as just, is that other welding methods are difficult to reach, creates its irreplaceable status in welding production.With the modern times
Industrial expansion, the continuous application of new material and big thick structure, industrial production is to welding efficiency and the requirement more and more higher of quality.
Conventional arc weldering is typical heat-conduction-type welding method, and the heating to workpiece relies on heat conduction, the biography of heat within the workpiece
It is different because of material property in itself and need the regular hour to lead speed, therefore fusion penetration is limited by heat conduction efficiency, often
Can only be by increasing heat input, reducing the means such as weldering speed to ensure appearance of weld.Which greatly limits electric arc welding
The raising of ability and efficiency, determine that it is difficult to low_input_power, big depth-to-width ratio welding, modern manufacturing industry can not be fully met
Requirement.In recent years, the high-energy-density welding heat source such as gradual popularization and application such as plasma arc, laser, electron beam.This kind of welding
Technology be different from principle conventional arc welding, often in welding process using keyhole effect formed deep penetration welding, have compared with
High Weldability and higher production efficiency, but exist to some extent in terms of the adaptability of welding structure and environmental condition
Limitation and expensive, still can not substitute electric arc to weld completely.The heat input of conventional arc weldering how is reduced, improves its welding
Efficiency and Weldability are still the problem of receiving much concern.
On improving the Patents of electric arc welding depth-to-width ratio and welding efficiency, such as Patent No. CN101190484, title
For " large ratio of depth to width tungsten electrode inert gas-shielded welding technique ", disclose a kind of micro by being added into helium base inert protective gas
Active gases (oxygen or carbon dioxide), trace active gas is decomposed and dissolved to liquid welding pool in welding process, is adjusted
The content of active component oxygen in whole molten bath, change weld pool surface Tension Temperature gradient factor and molten bath convection current direction, so as to control
Thermal convection current and heat propagation direction in molten bath, high-aspect-ratio Pool is obtained, improve the welding method of welding efficiency.And for example patent
Number CN10351711A, patent of invention is entitled " a kind of cut deal docking single track one side welding with back formation high-efficiency welding method ", public
Opened it is a kind of realize that cut deal docks the method that disposable one side fills welding by the way that multi-heat source is compound, welding efficiency can be improved,
Reduce welding deformation, reduce residual stress, improve the quality of welding point.Similar patent is not directed to electric arc welding heat conduction machine
The change of system, so as to which the effect in terms of welding penetration and welding efficiency is improved is limited, it is impossible to fundamentally solve electric arc welding
The limitation determined by its thermal conduction mechanism.
Ratio-frequency welding is produced using solid resistance heat as the energy using the kelvin effect and kindred effect of high frequency electric in workpiece
Resistance heat make workpiece weld zone top layer be heated to melt or close mecystasis, apply upset force immediately and realize metal
With reference to being a kind of mechanization, the automatic welding method developed by low frequency and intermediate frequency technology early 20th century.Due to high-frequency electrical
Stream has very strong Kelvin effect and kindred effect, and the mother metal end face of weld seam both sides, energy height collection are concentrated in welding process
In, heating is very rapid, and weldering speed may be up to 150-200m/min, and heat affected area very little.So high welding efficiency is other
What welding method can not be equal to.But conventional highfrequency weldering needs additional upset force to act on weld seam both sides mother metal, makes surface to be welded
It is squeezed to form combination at high temperature, therefore there is significant limitation in welding structure and welding quality etc., it is difficult to
To commonly used.The present invention combines the characteristics of conventional arc weldering and ratio-frequency welding, and two kinds of welding methods progress are compound, takes long benefit
It is short, propose a kind of low cost, low_input_power, the high efficiency composition welding method of strong weld ability.
On high-frequency welding and the complex welding method of other Type of Welding, such as patent（Document number CN103212781A）
" high-frequency resistance-agitating friction composite welding apparatus and welding method " discloses a kind of by high-frequency resistance welding and agitating friction weldering
Connect the composite welding apparatus being combined and method.The invention is carried out pre- using high frequency electric to workpiece surface to be welded in front of mixing needle
Heat, is the device that stirring-head carries out electrified regulation without collecting ring etc., heats and softens high-melting-point high rigidity in advance by weldering metal, auxiliary
Being smoothed out for agitating friction welding is helped, improves the service life of mixing needle.The high frequency that patent of the present invention is proposed-electric arc combined
The method that welding method and foregoing invention propose is two kinds of entirely different complex welding methods, high-frequency current butt welding of the present invention
The effect of termination process and solve the problems, such as also entirely different with the invention.It there is no and welded on high-frequency resistance welding with electric arc at present
Combination report.
The content of the invention
In order to solve the above problems, the present invention provides a kind of high frequency-arc hybrid welding method, methods described combination electric arc
Weldering and two kinds of welding methods of ratio-frequency welding, weld simultaneously to workpiece feed-in high frequency electric in electric arc, become using high frequency electric is strong
Skin effect and kindred effect, the weld seam side wall mother metal in molten bath and molten bath forward position is set directly to produce high-frequency electrical thermal resistance and quickly be added
Heat, the heat input demand of arc welding is reduced, increase welding penetration, improve welding efficiency, the Weldability of increase electric arc welding；
Further, the high frequency electric feed-in form in methods described is that contact high frequency is fed or induction type high frequency is fed, its
Two contact electrodes are slide block type or roller type used in middle contact high frequency feed, and material is that copper or other electric conductivities are excellent
Different metal or alloy, two contact electrodes in welding direction be located at arc welding gun before, in welding process with arc welding
Rifle is run simultaneously；Induction of high frequency feeding classification can be used during pipe fitting straight seam welding, during the heating coil of induction type high frequency feed is
Empty copper pipe, after heating coil water flowing is cooled down, with coaxial by welded tube part, it be located in welding direction before arc welding gun, welding
Run simultaneously in termination process with arc welding gun；
Further, the electric arc is welded as melting pole gas shielded arc welding or non-melt pole gas shielded arc welding, wherein
Melting pole gas shielded arc welding specifically includes MIG, MAG and carbon-dioxide arc welding, non-melt pole gas shielded arc welding bag
TIG and plasma arc welding (PAW) are included, the source of welding current is direct current, exchange or pulse；
Further, the high frequency-electric arc combined frequency range for welding the high frequency electric source used is 50 ~ 1000kHz；
Further, for high frequency electric by two contact electrodes from workpiece front or back feed-in, two contact the symmetrical of electrode
The distance at center and arc welding gun center is 1 ~ 20cm；
Further, the described method comprises the following steps：
（1）Welded piece is placed on workbench in a manner of surface to be welded is parallel to workbench dead slot, allowance weld gap, and
Compressed using frock；
（2）Arc welding gun is placed in weld gap overcentre, and two contact electrodes are compacted on two pieces of welded pieces and formed respectively
Good contact simultaneously keeps same distance with arc welding gun；
（3）When welding starts, ignite electric arc first, filler wire, forms solder joint and turns on two pieces of workpiece, now opens high frequency electric source
By high-frequency electrical feed-in workpiece, while workbench is started, and keep arc welding gun with contacting electrode space synchronous operation；
（4）When contact electrode is run to workpiece end, high frequency electric source is cut off, but keep workbench to continue relatively with arc welding gun
Motion；
（5）When arc welding gun is run to workpiece end, Arc Welding Power is cut off, completes welding process；
Wherein, the process parameters range of welding is：Arc voltage：10-30V, wire feed rate 2-20m/min, welding current 60-
200A, protection air-flow amount 15-25L/min, high frequency electric source power output 1-50kW, speed of welding 10-200mm/s；
Beneficial effects of the present invention are as follows：
1）Welded compared to conventional highfrequency, the auxiliary in welding process of the present invention without upsetting force can realize connection, therefore can
To be applied to the welding of the diversified forms workpiece such as flat board, pipe fitting；
2）Compared to the arc-welding of traditional thermal conduction mechanism, high-frequency current of the present invention is in inside workpiece heat production, without heat transfer mistake
Journey, heating is more directly rapid, and the limitation that electric arc welding heat transfer essence determines is breached from principle, copes with superelevation
The energy requirement of speed welding, improves electric arc welding efficiency, simultaneously as the Kelvin effect and kindred effect of high frequency electric, two
The side to be welded of block workpiece produces the resistance heat for concentrating on surface, and heating region is concentrated, and heat affected area is welded small compared with conventional arc；
3）High frequency electric integrated distribution in the welding end surface of weld seam both sides mother metal, meanwhile, described high frequency electric can pass through two
Electrode is contacted from front or back feed-in, the thermograde on weld penetration direction can be reduced to greatest extent, solve docking
During weldering the problem of the shortage of heat of the back side, the limitation that overcomes traditional arc-welding to be determined by its thermal conduction mechanism promotes the uniform of joint
Change, improve welding penetration, be adapted to the welding of big slab part, increase the Weldability of arc-welding；
4）The present invention is advantageously implemented the one side welding with back formation under low_input_power；
5）The method of the invention operation is easy, is applicable to the Type of Welding such as fusion welding, soldering and molten soldering；
6）When this method melts soldering applied to dissimilar metal, the region of high frequency electric heating contains certain model in front of welding pool
Enclose, melt soldering for dissimilar metal has a pre- heat effect especially with the welding process of brazing flux, passes through the height of high frequency electric
Effect is preheated at a high speed, mother metal temperature another the obvious temperature rise that can be allowed in front of molten bath, while brazing flux is melted in advance, so as to
Be advantageous to wetting and spreading of the solder metal on mother metal；Meanwhile caused high-frequency electrical thermal resistance is related to the resistivity of two kinds of mother metals,
Often there is very big difference, different high frequency powers and electric arc bonding power be combined to can to obtain two kinds of mother metals various
The heat input of ratio, so as to meet dissimilar metal melt soldering when two kinds of mother metals to heat input difference require；Without excitation unit,
Pre-plating layer, back of weld is forced to shape without using back grooving, the molten soldering of different metal materials docking can be realized
One side welding with back formation；
7）Heretofore described arc welding thermal source can also be gas metal-arc welding, non-consumable gas shielded arc welding etc.
Electric arc thermal source；It is can also be applied to fusion welding, the soldering in the field such as foreign material, composite, non-metallic conducting material
And in molten soldering connection.
Brief description of the drawings
Fig. 1 is the structural representation of the electric arc combined welder of high frequency-consumable electrode gas-arc of the present invention；
Wherein, workbench 1, contact electrode 2, arc welding gun 3, welded piece 4, weld gap 5, high frequency electric source 6, workbench dead slot
7；
Fig. 2 is the signal that high frequency of the present invention-electric arc combined welder uses non-melt pole gas shielded arc thermal source
Figure.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, it is right below in conjunction with drawings and Examples
The present invention is explained in further detail.It should be appreciated that specific embodiment described herein is used only for explaining the present invention, and
It is not used in the restriction present invention.On the contrary, the present invention cover it is any be defined by the claims the present invention spirit and scope on do
Replacement, modification, equivalent method and scheme.Further, in order that the public has a better understanding to the present invention, below to this
It is detailed to describe some specific detail sections in the detailed description of invention.It is thin without these for a person skilled in the art
The description of section part can also understand the present invention completely.
The invention will be further described with specific embodiment below in conjunction with the accompanying drawings, but not as a limitation of the invention.
Below most preferred embodiment is enumerated for the present invention：
As Figure 1-Figure 2, the present invention provides a kind of high frequency-arc hybrid welding method, methods described combination arc welding and height
Frequency welds two kinds of welding methods, is welded simultaneously to workpiece feed-in high frequency electric in electric arc, utilizes the Kelvin effect that high frequency electric is strong
And kindred effect, the weld seam side wall mother metal in molten bath and molten bath forward position is directly produced high-frequency electrical thermal resistance and is rapidly heated, reduce
The heat input demand of arc welding, increase welding penetration, improve welding efficiency, the Weldability of increase electric arc welding, methods described
In high frequency electric feed-in form for contact high frequency feed or induction type high frequency feed, wherein contact high frequency feed used
Two contact electrodes be slide block type or roller type, material is copper or the excellent metal or alloy of other electric conductivities, and two connect
Touched electrode is located at before arc welding gun in welding direction, is run simultaneously in welding process with arc welding gun；Pipe fitting straight weld
Induction of high frequency feeding classification can be used when connecing, the heating coil of induction type high frequency feed is hollow copper pipe, by heating coil water flowing
After cooling, with coaxial by welded tube part, it is located in welding direction before arc welding gun, it is synchronous with arc welding gun in welding process
Operation, the electric arc are welded as melting pole gas shielded arc welding or non-melt pole gas shielded arc welding, wherein consumable electrode gas
Body shielded arc welding specifically includes MIG, MAG and carbon-dioxide arc welding, and non-melt pole gas shielded arc welding includes TIG and waited
Ion arc-welding, the source of welding current are direct current, exchange or pulse, and the high frequency-electric arc combined welds the high frequency electric source used
Frequency range be 50 ~ 1000kHz, high frequency electric is by two contact electrodes from workpiece front or back feed-in, two contacts
The symmetrical centre of electrode and the distance at arc welding gun center are 1 ~ 20cm, be the described method comprises the following steps：
（1）Welded piece is placed on workbench in a manner of surface to be welded is parallel to workbench dead slot, allowance weld gap, and
Compressed using frock；
（2）Arc welding gun is placed in weld gap overcentre, and two contact electrodes are compacted on two pieces of welded pieces and formed respectively
Good contact simultaneously keeps same distance with arc welding gun；
（3）When welding starts, ignite electric arc first, filler wire, forms solder joint and turns on two pieces of workpiece, now opens high frequency electric source
By high-frequency electrical feed-in workpiece, while workbench is started, and keep arc welding gun with contacting electrode space synchronous operation；
（4）When contact electrode is run to workpiece end, high frequency electric source is cut off, but keep workbench to continue relatively with arc welding gun
Motion；
（5）When arc welding gun is run to workpiece end, Arc Welding Power is cut off, completes welding process；
Wherein, the process parameters range of welding is：Arc voltage：10-30V, wire feed rate 2-20m/min, welding current 60-
200A, protection air-flow amount 15-25L/min, high frequency electric source power output 1-50kW, speed of welding 10-200mm/s.
As shown in figure 1, composite welding apparatus of the present invention includes workbench 1, two sliding contact electrode 2, arc welding gun 3
(electrode gas shielded arc welding gun or non-consumable gas shielded arc welding rifle), high frequency electric source 6.By two pieces of welded pieces 4 with surface to be welded
It is positioned over parallel to workbench dead slot 7 among workbench 1, certain weld gap 5 is reserved between surface to be welded.Arc welding gun 3 is put
In the overcentre of weld gap 5, two contact electrodes 2 be placed on two pieces of welded pieces 4 and with arc welding gun 3 keep it is identical away from
From being connected to high frequency electric source 6, and it is formed with welded piece 4 and contact conduction.Before welding, welded piece 4 is anchored on
On welding bench 1, first ignite welding gun electric arc, and filler wire forms solder joint（It need to be sent simultaneously during non-consumable gas shielded arc welding
Enter welding wire 9）, high frequency electric source 6 is now opened, by high-frequency alternating current by contacting in the feed-in welded piece of electrode 2.Form loop
When, the surface to be welded both sides sense of current of any time welded piece on the contrary, high frequency electric Kelvin effect and kindred effect work
Under, high frequency electric flows only along welding surface, the welded molten bath of cocurrent, produces high-frequency electrical thermal resistance and concentrates on these regions.
At the same time starting workbench makes welded piece 4 and the relative motion of arc welding gun 3, and two contact electrodes 2 are kept with arc welding gun 3
Spatial synchronization.Contact electrode 2 is always positioned at a segment distance before arc welding gun 3, to ensure high frequency electric Kelvin effect and neighbour
The generation of nearly effect, and have certain pre- heat effect to welded piece surface to be welded, and heat range is concentrated, heating is rapid, for
The welded piece of unlike material, heat range can be adjusted by adjusting contact the distance between electrode and arc welding gun.
When contact electrode 2 is run to the end of workpiece, high frequency electric source 6 is cut off.Workbench proceeds to arc welding gun
Stop when row is to workpiece end.In the present invention, contact electrode 2 can be sliding block form or roller form, and material is copper or other are led
The metal alloy of excellent electrical properties, contact area size depending on use electric current similar to conventional highfrequency resistance welding electrode, one
As in more than 50mm2, high current feed-in should suitably increase contact area, reduce contact resistance.The output current frequency of high frequency electric source 6
Rate scope 100KHz-1MHz, frequency is higher, and Kelvin effect and kindred effect are more obvious.For thicker workpiece, can suitably drop
Low frequency, make to heat on thickness direction more uniform.For the workpiece of unlike material, if thermal conductivity is all preferable, frequency should be increased
Rate, reduce the diffusion of heat；If thermal conductivity is poor, frequency can be reduced, ensures uniformity.Meanwhile high frequency electric also may be used
From workpiece reverse side feed-in, reduce the thermograde on welding penetration direction to a greater extent.
Embodiment 1：
3.5mm thickness carbon steel Q235-b butt welding.The electric arc combined welding parameter of high frequency-consumable electrode gas-arc is：Weld gap 5 is controlled
System is in 0.8mm, speed of welding 25mm/s（1500mm/min）, high frequency electric source output current frequency 600kHz, anode voltage 5kV,
Anode current 2A, arc welder weldingvoltage 20V, electric current 170A, wire feed rate 16m/min, protection gas are argon gas, flow 15L/
Min, welding wire are diameter 1.0mm ER50-6 mild steel weldinmg rods.High frequency-non-melt pole gas shielded arc composite welding parameter
For：Weld gap 5 is controlled in 0.8mm, speed of welding 10mm/s（600mm/min）, high frequency electric source output current frequency 600kHz,
Anode voltage 5kV, anode current 2A, arc welder weldingvoltage 10V, electric current 120A, wire feed rate 8m/min, protection gas is argon
Gas, flow 15L/min, welding wire are diameter 1.0mm ER50-6 mild steel weldinmg rods.Thus the gained continuous zero defect of weld seam, welding
Joint is broken in mother metal（Non- heat affected area）, joint average tensile strength reaches 390MPa.
Embodiment 2：
The molten soldering of the fine aluminium of 3.0mm thickness carbon steels Q235-b and 3.0mm 1060 docking, high frequency-consumable electrode gas-arc are electric arc combined in detail
Thin parameter is as follows：Weld gap 5 is controlled in 0.8mm, speed of welding 20mm/s（1200mm/min）, high frequency electric source output current frequency
Rate 600kHz, anode voltage 2kV, anode current 0.5A, arc welder weldingvoltage 13V, electric current 110A, wire feed rate 11m/
Min, protection gas are argon gas, and flow 15L/min, welding wire is diameter 0.8mm ER4043 aluminium-silicon alloy welding wires.High frequency-non-melt
Gas shielded arc compound detail parameters in pole are as follows：Weld gap 5 is controlled in 0.8mm, speed of welding 10mm/s（600mm/
min）, high frequency electric source output current frequency 600kHz, anode voltage 2kV, anode current 0.5A, arc welder weldingvoltage 10V,
Electric current 100A, wire feed rate 6m/min, protection gas are argon gas, and flow 15L/min, welding wire is diameter 0.8mm ER4043 aluminium silicon
Alloy welding wire.Thus the gained continuous zero defect of weld seam, welding point are broken in aluminum side mother metal heat affected area, joint average tensile
Intensity reaches 80MPa.
One kind of embodiment described above, simply more preferably embodiment of the invention, those skilled in the art
The usual variations and alternatives that member is carried out in the range of technical solution of the present invention should all include within the scope of the present invention.
Claims (6)
- A kind of 1. high frequency-arc hybrid welding method, it is characterised in that two kinds of welding of methods described combination arc welding and ratio-frequency welding Method, weld simultaneously to workpiece feed-in high frequency electric in electric arc, using the Kelvin effect and kindred effect that high frequency electric is strong, make The weld seam side wall mother metal in molten bath and molten bath forward position directly produces high-frequency electrical thermal resistance and is rapidly heated, and reduces the heat input of arc welding Demand, increase welding penetration, improve welding efficiency, the Weldability of increase electric arc welding.
- 2. according to the method for claim 1, it is characterised in that the high frequency electric feed-in form in methods described is contact High frequency is fed or induction type high frequency feed, and wherein two contact electrodes are slide block type or roller used in contact high frequency feed Formula, material are copper or the excellent metal or alloy of other electric conductivities, and two contact electrodes are located at arc welding in welding direction Before rifle, run simultaneously in welding process with arc welding gun；Induction of high frequency feeding classification can be used during pipe fitting straight seam welding, is felt The heating coil for answering formula high frequency to feed is hollow copper pipe, after heating coil water flowing is cooled down, with coaxial by welded tube part, in welding side It is located at upwards before arc welding gun, is run simultaneously in welding process with arc welding gun.
- 3. according to the method for claim 1, it is characterised in that the electric arc be welded as melting pole gas shielded arc welding or Non-melt pole gas shielded arc welding, wherein melting pole gas shielded arc welding specifically include MIG, MAG and carbon-dioxide protecting Weldering, non-melt pole gas shielded arc welding include TIG and plasma arc welding (PAW), and the source of welding current is direct current, exchange or pulse.
- 4. according to the method for claim 1, it is characterised in that the high frequency electric source that the high frequency-electric arc combined welding uses Frequency range be 50 ~ 1000kHz.
- 5. according to the method for claim 1, it is characterised in that high frequency electric by two contact electrodes from workpiece front or Reverse side feed-in, two symmetrical centres for contacting electrode and the distance at arc welding gun center are 1 ~ 20cm.
- 6. according to the method for claim 1, it is characterised in that the described method comprises the following steps：（1）Welded piece is placed on workbench in a manner of surface to be welded is parallel to workbench dead slot, allowance weld gap, and Compressed using frock；（2）Arc welding gun is placed in weld gap overcentre, and two contact electrodes are compacted on two pieces of welded pieces and formed respectively Good contact simultaneously keeps same distance with arc welding gun；（3）When welding starts, ignite electric arc first, filler wire, forms solder joint and turns on two pieces of workpiece, now opens high frequency electric source By high-frequency electrical feed-in workpiece, while workbench is started, and keep arc welding gun with contacting electrode space synchronous operation；（4）When contact electrode is run to workpiece end, high frequency electric source is cut off, but keep workbench to continue relatively with arc welding gun Motion；（5）When arc welding gun is run to workpiece end, Arc Welding Power is cut off, completes welding process；Wherein, the process parameters range of welding is：Arc voltage：10-30V, wire feed rate 2-20m/min, welding current 60- 200A, protection air-flow amount 15-25L/min, high frequency electric source power output 1-50kW, speed of welding 10-200mm/s.
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| CN108544082A (en) * | 2018-05-31 | 2018-09-18 | 吉林大学 | Electromagnetism assists the equipment and method of agitating friction welding high-melting-point alloy |
| CN113210796A (en) * | 2021-05-19 | 2021-08-06 | 新疆大学 | Variable-polarity double-electrode arc turning method |
| CN114083084A (en) * | 2021-11-24 | 2022-02-25 | 吉林大学 | Method for manufacturing magnesium alloy component by current-assisted arc additive manufacturing |
| CN114799586A (en) * | 2022-03-10 | 2022-07-29 | 中国电子科技集团公司第二十九研究所 | Combined process method for connecting and destressing multifunctional composite component |
| CN115283865A (en) * | 2022-10-10 | 2022-11-04 | 安徽万宇机械设备科技有限公司 | Wire welding device and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108544082A (en) * | 2018-05-31 | 2018-09-18 | 吉林大学 | Electromagnetism assists the equipment and method of agitating friction welding high-melting-point alloy |
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| CN114083084A (en) * | 2021-11-24 | 2022-02-25 | 吉林大学 | Method for manufacturing magnesium alloy component by current-assisted arc additive manufacturing |
| CN114083084B (en) * | 2021-11-24 | 2022-12-06 | 吉林大学 | Method for manufacturing magnesium alloy component by current-assisted arc additive manufacturing |
| CN114799586A (en) * | 2022-03-10 | 2022-07-29 | 中国电子科技集团公司第二十九研究所 | Combined process method for connecting and destressing multifunctional composite component |
| CN114799586B (en) * | 2022-03-10 | 2023-04-11 | 中国电子科技集团公司第二十九研究所 | Combined process method for connecting and destressing multifunctional composite component |
| CN115283865A (en) * | 2022-10-10 | 2022-11-04 | 安徽万宇机械设备科技有限公司 | Wire welding device and method |
| CN115283865B (en) * | 2022-10-10 | 2022-12-27 | 安徽万宇机械设备科技有限公司 | Wire welding device and method |
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