CN101992354A - Micro-beam plasma arc/laser hybrid welding method - Google Patents
Micro-beam plasma arc/laser hybrid welding method Download PDFInfo
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- CN101992354A CN101992354A CN 200910165663 CN200910165663A CN101992354A CN 101992354 A CN101992354 A CN 101992354A CN 200910165663 CN200910165663 CN 200910165663 CN 200910165663 A CN200910165663 A CN 200910165663A CN 101992354 A CN101992354 A CN 101992354A
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Abstract
The invention relates to a micro-beam plasma arc/laser hybrid welding method, which comprises the following steps: fixing a micro-beam plasma arc transmitter and a laser beam transmitter, providing a workpiece which moves at a constant speed, and forming a mode of micro-beam plasma arc preposition; carrying out initial fusion on the surface of a welded part of the workpiece by micro-beam plasma arcs, then irradiating laser beams to the welded part, thereby deepening the depth of fusion of micro-beam plasma arc welding, and then completing the welding. The welding method of the invention can reduce the reflectance of aluminium alloys to lasers, and improve the absorption rate of aluminium alloys to laser energies, thereby improving the effective heating depth of laser, increasing the depths of fusion of weld joints and effectively reducing the widths of weld joints and heat affected zones; and finally, obtaining weldments which have the advantages of large depth of fusion, extremely small heat affected zone and beautiful appearance.
Description
Technical field
The present invention relates to the butt-welded method of a kind of aluminum alloy plate materials or section bar, specifically a kind of by using two kinds of thermals source of micro-beam plasma arc and laser that aluminum alloy plate materials or section bar are carried out butt-welded method simultaneously, belong to the metal welding techniques field.
Background technology
Aluminium alloy has that density is little, plasticity good, is easy to machine-shaping, no black brittleness changes and many advantages such as atmospheric corrosion resistance, the structural material that is widely used in Aeronautics and Astronautics, high-speed track train or other delivery vehicle, yet, because distinctive physics of aluminum alloy materials and chemical characteristic have determined the weldability that it is unique.
At present, domestic at the particularly welding of thick aluminum alloy plate of aluminum alloy materials, what generally adopt is fusing and inert gas protection weldering (MIG weldering) technology, yet the input of the heat of common melting is bigger, and problems such as joint is softening, crackle, pore all are difficult to solve.
Laser welding technology has been widely used for many years, be mainly used in the various metal materials of welding, aluminium alloy for example, stainless steel or the like, general laser welding apparatus, comprise a solid-state or gas laser oscillator that produces intrinsic monochromatic high-energy light beam guiding, one has light path of being partial to mirror or the optical fiber that allows laser beam is transferred to the soldering tip that is positioned at sheet material to be welded opposite, comprise lens or one or more focusing mirror in the soldering tip, so that laser beam is focused on the material to be welded, joint at material to be welded forms one or more focuses, thereby remove to melt material to be welded in the enough power densities of concentration of local, usually, soldering tip comprises that also one is used for by means of supplying with welding gas with the exhaust nozzle of laser beam coaxial arrangement, the feeder that also claims assist gas, this feeder also can be arranged on the outside of laser welding head.
With respect to laser welding technology, also be extensive use of the arc welding technology at present, be used for two metal works are butted and welded, this technology is to make the edge of work that couples together melt by means of one or more electric arcs.This wherein comprises TIG (tungsten inert gas), and MIG (pole noble gas), MAG three kinds of processes such as (metal utmost point active gases) adopt the PLASMA ARC WELDING process in addition in addition.
Yet for welding aluminum alloy sheet or section bar, laser welding process or Arc Welding Process respectively have its distinctive characteristics.
Advantage such as fusion penetration was big when Laser Welding had power density height, equal hot input quantity, the heat affected area is narrow, welding deformation is little, speed of welding is fast and easily be automated, because Laser Welding can concentrate on thermal source in the very little size, so Laser Welding can accurately be welded trickle part, thereby can carry out deep penetration welding, in welding is produced, have very big application potential.But when utilizing the LASER BEAM WELDING aluminium alloy, because aluminium is to characteristics such as reflectivity height, the heat conduction of laser are fast, often need to adopt more powerful laser instrument to weld, cause welding cost too high, and when the Laser Welding aluminium alloy thick plate, weld defect such as also be prone to poor stability, pore, crackle, stay.In addition, because the laser beam focus spot size of laser weld is very little, so need workpiece to be welded to have high position precision, machining accuracy and the equipment precision to welding point all has higher requirement simultaneously.
Arc welding is compared with Laser Welding with plasma welding, has lower weld defect, and tracking welding wiring easily, but its weld width and heat affected area width are big, and speed of welding is slow.
In order to solve the Welding Problems of aluminum alloy materials, a lot of composite welding process have appearred in recent years, such as laser-TIG and laser-MIG, laser-plasma arc etc., to improve welding quality and speed of welding.
By contrast, the technology that laser and TIG are compound is relative simple, easy operating, but owing to adopt high-frequency arc strike repeatedly, the stability of electric arc is relatively poor relatively in the starting the arc process, and the directionality of electric arc and rigidity are also undesirable, and the tungsten electrode termination is in the high-temperature metal steam, polluted easily, thereby influenced the stability of electric arc.For aluminium alloy,, when electric arc is unstable, in welding process, will cause the final shaping of weld seam bad, influence welding quality because itself is more intense to the sensitiveness of electric arc.
When laser and MIG composite welding, requirement to the butt welding gap is more loose, but owing to there is the problem of droplet transfer, make that the stability control of whole welding process is more complicated, be unfavorable for industrial production, so just can not carry out high-speed welding, reduce the efficient of welding aluminum alloy aluminium alloy.
When laser and plasma arc composite welding, igniting and moving more stablely of plasma arc can significantly improve speed of welding and fusion penetration, is particularly suitable for the high speed butt joint welding of aluminum alloy plate materials and section bar.
Having had the patent No. in the prior art is the welding method described in 200480043356.8 the Chinese patent " use plasma and laser carries out the method for continuous butt welding and use this method to make the method for metal tube ", but in fact the plasma of this method has comprised various flames and electric arc heated method, heat is concentrated during the flame plasma heating, the heat affected area is very wide, the good materials of thermal conductivity such as aluminium, copper be can not finely be used in, the aluminium alloy of heat treatment reinforcement and the materials such as iron and steel of heat treatment reinforcement more can not be applied to.Arc plasma adds the situation of ratio of specific heat flame plasma heating slightly to be improved, but its heat affected area broad still.In addition, 200480043356.8 Chinese patent " use plasma and laser carries out the method for continuous butt welding and use this method to make the method for metal tube " described in welding method and technology mainly be to be used for weld metal pipe and some thin-sheet metals, unspecial characteristics at aluminium alloy design welding method and technology, particularly for the welding of the sheet material and the section bar of aluminium alloy, more need special welding procedure, this method can not realize the effective welding to the heat treatment reinforcement aluminium alloy.
Summary of the invention
Main purpose of the present invention is to address the above problem and is not enough, a kind of micro-beam plasma arc and laser complex welding method are provided, it can produce, and weld penetration is big, the heat affected area is little, the metal weldment of good looking appearance, can effectively improve welding quality and welding efficiency when welding aluminum alloy sheet and section bar.
For achieving the above object, technical scheme of the present invention is:
A kind of micro-beam plasma arc and laser complex welding method, this method comprises the steps:
(1) micro-beam plasma arc ejecting gun and laser beam ejecting gun are fixed, wherein the micro-beam plasma arc ejecting gun is preceding, the laser beam ejecting gun after, the part butt joint that workpiece to be welded need be docked, wherein, the focus of micro-beam plasma arc and laser beam is in the centre of workpiece welding portion to be welded;
(2) move workpiece to be welded continuously, the welding portion that uses the microplasma ejecting gun to treat welding work pieces initially melts, and makes the welding portion surface be in high temperature fused state;
(3) make laser beam shine described welding portion subsequently, thereby deepen the fusion penetration of micro-beam plasma arc melting welding, finish welding.
Wherein the welding current of micro-beam plasma arc is 15-30A, the defocusing amount of laser beam is-1 to-2mm, distance between micro-beam plasma arc center and the laser beam center is 1 to 3mm, micro-beam plasma arc ejecting gun and laser beam ejecting gun are fixed on the screw rod, thereby regulate the distance between micro-beam plasma arc center and the laser beam center.
The welding portion that this welding method is specially adapted to described workpiece to be welded has 0.1mm or littler butt joint space.
The ejaculation direction of described micro-beam plasma arc and the direction of illumination of laser beam be parallel to each other and the vertical welding portion that acts on workpiece to be welded on.
It is aluminum alloy plate materials or section bar that this welding method is specially adapted to workpiece material to be welded.
In this welding method, the cross section of described workpiece welding portion to be welded forms I shape or Y shape groove toward each other, and the angle of described Y shape groove is answered 10 °-20 °.
Content to sum up, micro-beam plasma arc provided by the present invention and laser complex welding method adopt workpiece to be welded to move and the fixing mode of micro-beam plasma arc and laser beam, carry out the welding of aluminum alloy plate materials or section bar.Micro-beam plasma arc ejecting gun and laser beam ejecting gun are fixed on the screw rod, can regulate the distance between laser beam center and the micro-beam plasma arc center as required arbitrarily, regulating parameter makes the focus of microplasma on the surface of weldment, the focus of laser beam is the 1-2mm place below surface of the work, at this moment, welding quality is best.
Among the present invention, the reversed in order that the moving direction of weldment and micro-beam plasma arc and laser beam are fixing forms the preposition mode of micro-beam plasma arc.When the welding beginning, the micro-beam plasma arc thermal source at first heats aluminum alloy materials, thereby make the face of weld floor district of welding point be in high temperature fused state, at this moment workpiece to be welded begins to move and open laser beam, because face of weld is in high temperature fused state, reduced the reflectivity of metal pair laser, improved the absorptivity of metal pair laser energy, thereby improved effective heat penetration of laser, strengthen weld penetration, effectively reduce weld width and heat affected area width, it is darker to obtain fusion penetration at last, and the heat affected area is especially little, the weldment of good looking appearance simultaneously, has reduced the machining accuracy of welding point and the requirement of equipping aspects such as precision, improve welding quality and welding efficiency, made micro-beam plasma arc and laser beam produce the effect of 1+1＞2.
Because the main effect of micro-beam plasma arc is to preheat metal material such as aluminium alloy in this welding method, make the weld seam rim surface zona of its welding point be in high temperature fused state, reduce the laser reflection, increase laser absorption rate, improve effective utilization of laser energy, and guarantee that the fusion area is not excessive, guarantee that the heat affected area is in the minimum scope; It is fast simultaneously can also to satisfy speed of welding, is out of shape the little requirement of Denging; And when the arc length of micro-beam plasma arc self in very large range changes, can current interruption, and can keep the column feature, have characteristics such as speed of welding is fast, weld seam is narrow, the heat affected area is little, welding deformation is little and satisfy above-mentioned requirements just, micro-beam plasma arc welds the characteristic that can better mate laser than other plasma heating with the laser composite methods.In addition, adopt welding method of the present invention, need not clear up in advance when welding aluminum alloy materials, and just need high-frequency high-voltage current when having only the starting the arc, plasma arc is stable, and electrode is not exposed in the metallic vapour.This soldering method also is applicable to the butt joint weld job of multiple materials such as magnesium alloy, copper alloy, titanium alloy, low-alloy steel simultaneously.
Description of drawings
Fig. 1 structural representation of the present invention.
As shown in Figure 1, workpiece 1 to be welded, micro-beam plasma arc center 2, laser beam center 3, molten bath 4.
The specific embodiment
Below in conjunction with the accompanying drawing and the specific embodiment the present invention is described in further detail:
As shown in Figure 1, complex welding method of the present invention adopts micro-beam plasma arc and laser composite heat power supply to carry out the butt joint welding of aluminum alloy plate materials or section bar, wherein, is 5mm with thickness, and width is 200mm, and the aluminum alloy plate materials of length 1000mm is an example.
The micro-plasma arc welding rifle adopts the TK-4 type, and important technological parameters: operating current is 0.3-30A; The striking mode is a high frequency; The nozzle type of cooling is an indirect water-cooling; The electrode type of cooling is an indirect water-cooling; It is 0.2-0.4MPa that cooling water enters pressure; Cooling water enters temperature and is not higher than 45 ℃; Nozzle bore scope 0.8-1.5mm, electrode diameter 1.5mm.TK-4 type micro-plasma arc welding rifle can be under little electric current steady operation, the welding gun cooling system is good, nozzle cooling effectiveness height, arc stability, nozzle long service life, production efficiency height.Adopt special cermacis between the lower gun body on the welding gun inside, use insulation effect unaffected for a long time, the protective gas that adopts during welding is a high-purity argon gas.
Laser welder adopts HL2006D type Nd:YAG continuous wave laser, wavelength is that 1.06 microns, laser are output as 0-2000W (mean power), single pulse energy is that 0-200J, impulse waveform can be set arbitrarily, the 0.6mm Optical Fiber Transmission, and the condenser lens focal length is 200mm, and focus diameter is 0.6mm.
This welding method comprises the steps:
The first step: micro-beam plasma arc ejecting gun (not shown) and laser beam ejecting gun (not shown) kept at a certain distance away to be fixed on the two ends of a screw rod, the micro-beam plasma arc ejecting gun is fixed on the front, the laser beam ejecting gun is fixed on the back, just can regulate distance between micro-beam plasma arc ejecting gun and the laser beam ejecting gun by rotary screw.
As shown in Figure 1, guarantee in this welding method that the distance between micro-beam plasma arc center 2 and the laser beam center 3 is 1-3mm, aluminum alloy plate materials at above-mentioned specification, selecting the distance between micro-beam plasma arc center 2 and the laser beam center 3 is 1.6mm, guarantee that the micro-beam plasma arc thermal source fully heats under the situation on surface of workpiece 1 to be welded, carry out the welding of laser beam again, guarantee welding quality.If the distance at two centers is too short, can cause the heating of micro-beam plasma arc thermal source insufficient, workpiece 1 surface can not be in high temperature fused state, can influence the absorptivity of workpiece 1 surface to laser; If the distance at two centers is excessive, can influences the absorptivity of workpiece 1 surface equally, thereby influence welding quality laser.
The pre-heat effect of micro-beam plasma arc can improve thermal source efficient, the one side plasma arc has improved metal pair laser to the preheating of surface of the work absorption, meanwhile, isoionic existence makes the metal vapors particle refinement again, thereby has reduced laser because of the caused energy loss of metal vapors KPT Scatter, and the laser energy conversion ratio is increased, therefore the intensity of spectral lines of weld zone strengthens, when the increase of two heat source spacings, the interaction of thermal source weakens, thereby the characteristic spectrum line strength of weld zone also reduces; On the other hand, the metal vapors that laser produces provides the low ionization potential district for plasma arc, only needs less energy can obtain stable electric arc, the electric arc arc column shrinks, arc stiffness improves, and is big when this effect was more preposition than laser when laser was rearmounted, and the characteristic spectrum line strength of acquisition is also just bigger.
To have the position butt joint of two workpiece 1 butt joints to be welded of certain width and thickness, and make the focus at micro-beam plasma arc center 2 and laser beam center 3 just in time drop on the centre of workpiece 1 weld seam to be welded.
The cross section of the welding portion of workpiece 1 to be welded forms I shape or Y shape groove toward each other, has about 0.1mm or littler butt joint space in I shape groove or Y shape groove.If when forming Y shape groove, the angle of Y shape groove also can change, because the energy of microplasma is very concentrated, and active area is less, and angle is too big, as traditional 50-70 ° angle, can increase and fill the metal use amount, increase the heat affected area width, property of welded joint and welding efficiency are descended, the advantage of micro-beam plasma arc can not be given full play to.Therefore angle is unsuitable excessive, but angle is too little, as is lower than 10 °, and micro-beam plasma arc centering is unsuitable, and producing lack of penetration possibility with defectives such as being mingled with increases, so being chosen as between 10 °-20 ° of Y shape groove angle wherein is preferably 20 °.
Second step: move workpiece 1 to be welded continuously with a constant speed, the direction of the moving direction of workpiece 1 to be welded shown in arrow among Fig. 1, opposite with the permanent order of micro-beam plasma arc ejecting gun and laser beam ejecting gun, form the preposition mode of micro-beam plasma arc.Treating welding work pieces 1 by micro-beam plasma arc ejecting gun and laser beam ejecting gun along bonding wire welds.Because have only workpiece 1 to move,, can select different workpiece 1 translational speed and speed of welding according to the characteristic of different materials and dimensional thickness etc. so the translational speed of workpiece 1 has just determined speed of welding.Speed of welding is a selection principle with the through welding workpiece, and during as the thick aluminium alloy of welding 5mm, speed of welding is selected 18mm/s for use.
After workpiece 1 began to move, at first with the surface of micro-beam plasma arc heating Al alloy parts 1 butted part, welding current was typically chosen between the 15-30A, makes the face of weld zone of workpiece 1 welding portion be in high temperature fused state.The concrete numerical value of welding current with size and different, can form the heat affected area of broad according to workpiece 1 properties of materials when welding current is big, welding deformation and property of welded joint descend.Welding current hour, the molten bath that motlten metal forms is less, and liquid metal is lower to the absorption efficiency of laser, is unfavorable for bringing into play the advantage of laser weld.In present embodiment, the thick aluminum alloy plate materials of above-mentioned 5mm, then selecting welding current generally speaking is about 20A.
The 3rd step: workpiece 1 uses high-octane laser beam to shine the welding portion that has been heated by micro-beam plasma arc after beginning to move, and welds, until finally finishing welding.
Because face of weld is in high temperature fused state, has reduced the reflectivity of aluminum alloy plate materials to laser, has improved the absorptivity of aluminum alloy plate materials to laser energy, thereby has improved effective heat penetration of laser, has strengthened weld penetration.
In this welding method, because the surface that micro-beam plasma arc has at first heated workpiece 1, increased the absorptivity of 1 pair of laser of workpiece, so the gonglion 3 of laser beam can drop on workpiece 1 lower face 1-2mm place, like this, not only can effectively reduce weld width and heat affected area width, weld seam after the welding no longer needs operations such as polishing, can directly obtain the weldment of good looking appearance, increases substantially welding quality, but also can save labour turnover and material cost, improve welding efficiency.In present embodiment, the thick aluminum alloy plate materials of above-mentioned 5mm adopts parameters such as above-mentioned speed of welding and welding current, can guarantee the weld seam through welding.
In welding method of the present invention, the incidence angle of the ejaculation direction of micro-beam plasma arc ejecting gun and laser beam ejecting gun has bigger influence to welding quality, when there is incidence angle in the micro-beam plasma arc ejecting gun, the molten bath 4 deep-seateds that welding point has melted are put with width position and can be changed with the different of incidence angle, also can change along with the distance difference of welding seam distance tungsten electrode spot, control accuracy is reduced and the control system complexity, welding quality is had bigger influence.If also there are angle in the incidence angle and the welding point of the ejaculation direction of laser beam ejecting gun, the drop point of its focal position and the degree of depth more are difficult to intuitive judgment so, make on-the-spot welding operation difficulty, the quality control complexity, influence to the welding quality control is bigger, therefore, the ejaculation direction of micro-beam plasma arc ejecting gun of the present invention and laser beam ejecting gun is parallel to each other and vertical acting on the workpiece 1 to be welded.The micro-beam plasma arc ejecting gun is during perpendicular to mother metal, the width position of welding pool 4 can intuitively show, its distance apart from micro-beam plasma arc ejecting gun center is very easy to measure and obtains, and for the micro-beam plasma arc of vertical incidence, the deep-seated of its weld seam is put consistent with the width position of weld seam, therefore, be convenient to very much determine the position of laser welding gun.The focus of laser should be positioned on the innermost straight line of weld seam center motlten metal, the surperficial 1-2mm of distance, at this moment, absorption and increase welding penetration for laser are the most favourable, the ejaculation direction and the face of weld of laser beam ejecting gun are the most straight, the drop point of its focal position is convenient to intuitive judgment, makes on-the-spot welding operation simple, and quality control is easy.
As mentioned above, given in conjunction with the accompanying drawings and embodiments scheme content can derive the similar techniques scheme.In every case be the content that does not break away from technical solution of the present invention, to any simple modification, equivalent variations and modification that above embodiment did, all still belong in the scope of technical solution of the present invention according to technical spirit of the present invention.
Claims (10)
1. micro-beam plasma arc and laser complex welding method, it is characterized in that: this method comprises:
(1) micro-beam plasma arc ejecting gun and laser beam ejecting gun are fixed, wherein the micro-beam plasma arc ejecting gun is preceding, the laser beam ejecting gun after, the part butt joint that workpiece to be welded need be docked, wherein, the focus of micro-beam plasma arc and laser beam is in the centre of workpiece welding portion to be welded;
(2) move workpiece to be welded continuously, the welding portion that uses the microplasma ejecting gun to treat welding work pieces initially melts, and makes the welding portion surface be in high temperature fused state;
(3) make laser beam shine described welding portion subsequently, thereby deepen the fusion penetration of micro-beam plasma arc melting welding, finish welding.
2. micro-beam plasma arc according to claim 1 and laser complex welding method is characterized in that: wherein the welding current of micro-beam plasma arc is 15-30A.
3. micro-beam plasma arc according to claim 1 and laser complex welding method is characterized in that: wherein the defocusing amount of laser beam is-1 to-2mm.
4. micro-beam plasma arc according to claim 1 and laser complex welding method is characterized in that: wherein the distance between micro-beam plasma arc center and the laser beam center is 1 to 3mm.
5. micro-beam plasma arc according to claim 1 and laser complex welding method, it is characterized in that: described micro-beam plasma arc ejecting gun and laser beam ejecting gun are fixed on the screw rod, thereby regulate the distance between micro-beam plasma arc center and the laser beam center.
6. micro-beam plasma arc according to claim 1 and laser complex welding method is characterized in that: the welding portion of wherein said workpiece to be welded has 0.1mm or littler butt joint space.
7. micro-beam plasma arc according to claim 1 and laser complex welding method is characterized in that: the ejaculation direction of described micro-beam plasma arc and the direction of illumination of laser beam be parallel to each other and the vertical welding portion that acts on workpiece to be welded on.
8. micro-beam plasma arc according to claim 1 and laser complex welding method is characterized in that: described workpiece material to be welded is aluminum alloy plate materials or section bar.
9. micro-beam plasma arc according to claim 1 and laser complex welding method is characterized in that: the cross section of described workpiece welding portion to be welded forms I shape or Y shape groove toward each other.
10. micro-beam plasma arc according to claim 9 and laser complex welding method is characterized in that: the angle of described Y shape groove should be 10 °-20 °.
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103862177A (en) * | 2014-03-13 | 2014-06-18 | 机械科学研究院哈尔滨焊接研究所 | Laser-GMA (gas metal arc) hybrid heat source filler wire welding method |
| CN105945430A (en) * | 2016-05-30 | 2016-09-21 | 重庆理工大学 | High-efficiency welding method utilizing low-power laser based on induction of microbeam plasma arc |
| CN107470619A (en) * | 2017-07-12 | 2017-12-15 | 北京煜鼎增材制造研究院有限公司 | A kind of increasing material manufacturing method of metal parts |
| CN107931805A (en) * | 2017-12-26 | 2018-04-20 | 江苏烁石焊接科技有限公司 | A kind of plasma welding method of titanium alloy and aluminium alloy |
| CN108284273A (en) * | 2017-01-10 | 2018-07-17 | 发那科株式会社 | Combined machining method and computer-readable medium |
| CN108465938A (en) * | 2018-03-16 | 2018-08-31 | 江苏顺发电热材料有限公司 | The laser compound welding method on preposition electric arc liquefaction heating element surface layer |
| CN109202292A (en) * | 2018-11-15 | 2019-01-15 | 哈尔滨现代焊接技术有限公司 | Laser+plasma arc+TIG arc combines welding method |
| CN109773310A (en) * | 2019-03-12 | 2019-05-21 | 江苏顺发电热材料有限公司 | The method of induced with laser Variable Polarity Square-wave AC Gas Tungsten Arc Welding small-bore thin-wall tube |
| CN113751876A (en) * | 2021-09-24 | 2021-12-07 | 宁波江丰电子材料股份有限公司 | Method for processing welded seam of copper target assembly after welding and copper target assembly |
| CN115781025A (en) * | 2022-12-08 | 2023-03-14 | 成都智见复合科技有限公司 | Method and device for three-heat-source composite welding |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103862177A (en) * | 2014-03-13 | 2014-06-18 | 机械科学研究院哈尔滨焊接研究所 | Laser-GMA (gas metal arc) hybrid heat source filler wire welding method |
| CN103862177B (en) * | 2014-03-13 | 2016-08-24 | 机械科学研究院哈尔滨焊接研究所 | Laser-GMA arc composite heat source welding with filler wire method |
| CN105945430A (en) * | 2016-05-30 | 2016-09-21 | 重庆理工大学 | High-efficiency welding method utilizing low-power laser based on induction of microbeam plasma arc |
| CN108284273B (en) * | 2017-01-10 | 2021-09-28 | 发那科株式会社 | Composite processing method and computer readable medium |
| CN108284273A (en) * | 2017-01-10 | 2018-07-17 | 发那科株式会社 | Combined machining method and computer-readable medium |
| CN107470619A (en) * | 2017-07-12 | 2017-12-15 | 北京煜鼎增材制造研究院有限公司 | A kind of increasing material manufacturing method of metal parts |
| CN107931805B (en) * | 2017-12-26 | 2021-09-03 | 江苏烁石焊接科技有限公司 | Plasma welding method for titanium alloy and aluminum alloy |
| CN107931805A (en) * | 2017-12-26 | 2018-04-20 | 江苏烁石焊接科技有限公司 | A kind of plasma welding method of titanium alloy and aluminium alloy |
| CN108465938A (en) * | 2018-03-16 | 2018-08-31 | 江苏顺发电热材料有限公司 | The laser compound welding method on preposition electric arc liquefaction heating element surface layer |
| CN109202292A (en) * | 2018-11-15 | 2019-01-15 | 哈尔滨现代焊接技术有限公司 | Laser+plasma arc+TIG arc combines welding method |
| CN109773310A (en) * | 2019-03-12 | 2019-05-21 | 江苏顺发电热材料有限公司 | The method of induced with laser Variable Polarity Square-wave AC Gas Tungsten Arc Welding small-bore thin-wall tube |
| CN113751876A (en) * | 2021-09-24 | 2021-12-07 | 宁波江丰电子材料股份有限公司 | Method for processing welded seam of copper target assembly after welding and copper target assembly |
| CN113751876B (en) * | 2021-09-24 | 2023-04-28 | 宁波江丰电子材料股份有限公司 | Treatment method of welded seam of copper target assembly and copper target assembly |
| CN115781025A (en) * | 2022-12-08 | 2023-03-14 | 成都智见复合科技有限公司 | Method and device for three-heat-source composite welding |
| CN115781025B (en) * | 2022-12-08 | 2024-04-16 | 陈耕耘 | Method and device for three-heat source composite welding |
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Application publication date: 20110330 |