CN1368418A - Laser cutting-welding technology and apparatus for sheet - Google Patents
Laser cutting-welding technology and apparatus for sheet Download PDFInfo
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- CN1368418A CN1368418A CN 02115499 CN02115499A CN1368418A CN 1368418 A CN1368418 A CN 1368418A CN 02115499 CN02115499 CN 02115499 CN 02115499 A CN02115499 A CN 02115499A CN 1368418 A CN1368418 A CN 1368418A
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Abstract
A laser cutting-welding technology for large-area metallic sheet includes such steps as cutting the edges of two metallic sheets to be welded by a laser head, splicing them together while automatically compensating the size loss of cut seam, and welding along the spliced seam by the same laser head. Its apparatus is composed of Y axle, laser head, light guide system, laser device, auxiliary supporter, digital control system, blank sheet, locator, and splicing mechanism. Its advantages include compact structure, high laser utilization rate, high accuracy and no deformation.
Description
Technical field
The invention belongs to laser processing technology, the technology and the equipment that particularly utilize laser that sheet metal is cut, welds.
Background technology
Laser assembly solder metal blanket has the advantages that high weldering is fast, nothing is out of shape, weld seam is narrow and small, joint good and be easy to automation, each main automaker of the world is in coachbuilt body is made, become various topped the blankets of car with laser assembly solder, whole then punch forming, use material, weight reduction, simplification Sheet Metal Forming Technology to optimize, thus the reduction expense.But, therefore high because the Laser Welding hot spot is tiny, and does not have welding wire and add metal filled slit for the linearity and the end face quality requirement on waiting board limit, minimum to guarantee the buttcover plate gap, otherwise can't guarantee joint quality.The present method that adopts usually in the world is: with high fine pruning preprocessing, the automobile blanket laser assembly solder system that develops as U.S. VIL company promptly comprises high-precision shearing machine+laser welder, the equipment manufacturing cost costliness before (1) weldering.(2) adopt common shearing machine processing edges of boards, but fill out gap clearance with the pressure roller pressure in welding process, as Switzerland Soudronic company, but its technical sophistication costs an arm and a leg.(3) adopt that dual-beam is molten to be filled out the gap and solve clearance issues, as Canadian AWS company, but need two laser instruments, and must be the YAG laser instrument of available fiber coupling, also increased the equipment input.
Summary of the invention
The present invention proposes the cutting of a kind of sheet laser---welding technology and equipment thereof, and the high accuracy that is used to solve the large format sheet metal does not have distortion laser assembly solder problem.
Sheet laser of the present invention cutting---welding technology, the steps include: that (1) side blanket to be welded enters Working position after, use clamp, cut along the straight line reach by the laser Machining head that has cutting nozzles, cutting finishes, this side blanket is return; (2) opposite side blanket to be welded enters same Working position, uses clamp, retreats cutting by same laser Machining head along same processing linear, and cutting finishes, and this side blanket is return; (3) cut the cutting nozzles that laser Machining head is unloaded in weldering switching mechanism; (4) the both sides blanket through cutting loses the centering piece by centering splicing body compensation joint-cutting, and laser Machining head carries out laser weld along identical processing linear reach with cutting; (5) welding finishes, and unclamps the both sides anchor clamps, and the centering splicing body is return original position, unloads workpiece.
Described sheet laser cutting---welding technology after it further is characterized as clamp, is in clamped condition all the time before welding finishes; After cutting nozzles unloads, promptly open the protection gas curtain of laser Machining head, until refilling cutting nozzles.
Described sheet laser cutting---welding technology when carrying out laser cutting, can use nitrogen, argon gas or oxygen; Can use argon shield during laser weld; The protection gas curtain can use nitrogen or compressed air.
The present invention is used for sheet laser cutting---the equipment of welding, comprise Y-axis, laser Machining head, light-conducting system, laser instrument, auxiliary bin, digital control system, auxiliary bin splits both sides, Y-axis below, Y-axis is by crossbeam, servomotor and leading screw, guide rail constitutes, laser instrument passes to the light-conducting system that is positioned on the Y-axis with laser through light path, the light-conducting system light path connects the laser Machining head on the Y-axis, the equipment operation is controlled by digital control system, it is characterized in that: (1) described laser Machining head is cutting---the welding focus head, comprise condenser lens and microscope base, condenser lens is placed on microscope base inner chamber top, the bottom is built-in with the guide cylinder of slip chimeric with it, and cutting nozzles is threaded onto guide cylinder bottom inside spin; (2) between the auxiliary bin, the Y-axis below is provided with the blanket detent mechanism of Driven by Hydraulic Cylinder; (3) blanket detent mechanism end is provided with by what shift fork and shift fork driving mechanism were formed and cuts weldering switching mechanism; (4) auxiliary bin below, blanket detent mechanism both sides be provided with the centering splicing body is made up of left jaw and right jaw, respectively by stepper motor and ball-screw driving; (5) split left and right blanket clamp mechanism on the left and right jaw of centering splicing body, by Driven by Hydraulic Cylinder.
Described sheet laser cutting---the equipment of welding that is used for, it is further characterized in that cutting---welding focus head guide cylinder endoporus top is followed successively by turbination and thread helix face for conical, endoporus bottom, described cutting nozzles endoporus is conical, cutting nozzles outer surface middle part is for to have two breach around boss, top symmetry, around more than the boss being turbination, size and the turbination match of guide cylinder endoporus bottom.
Described sheet laser cutting---the equipment of welding that is used for, described guide cylinder endoporus bottom can be connected with the gas curtain seat, cutting---and welding focus head microscope base can be connected through the hinge and weld auxiliary tracheae.
Described sheet laser cutting---the equipment of welding that is used for, it further is characterised in that cuts in the weldering switching mechanism: (1) tubular shift fork is placed in guide post, fix by taper pin, there is the radial symmetric bossing shift fork end, its radial distance is corresponding around two breach of boss with cutting nozzles, shift fork is with sleeve outward, and there is the piece that colludes that radial symmetric entad protrudes its end, and colludes the piece radial distance and equates with shift fork bossing radial distance; (2) the shift fork driving mechanism comprises horizontal hydraulic cylinder and vertical hydraulic cylinder, and the piston rod of horizontal hydraulic cylinder promotes tooth bar, tooth bar and the gears engaged that is fixed in guide post, and the piston rod of vertical hydraulic cylinder links to each other with lifter plate, and lifter plate embeds in the annular groove of guide post.
Above-mentioned thin plate cutting---the equipment of welding that is used for can be fixed with feather key, sliding embeds in the axial keyway of sleeve surface on the described lifter plate.
In technology of the present invention and the equipment thereof, because the thin plate cutting is adopted same focus lamp and light path thereof with welding, and centering body compensation joint-cutting loss automatically under stepper motor drives, avoided the light path switching error, the repeatable accuracy of machining locus is improved greatly.Because same laser Machining head finished at same Working position and cut---the weldering splicing, need not the fine pruning preprocessing, its cutting edges of boards quality reaches the welding requirement fully, not only makes simplified equipment, and has improved the utilization rate of laser instrument.Welding blanket size, moulding and quality that it is produced reach fully and adopt fine pruning preprocessing, pressure to fill out gap clearance, the molten par of filling out gap technology production blanket of dual-beam in the world, and complete equipment are more compact, economical, cost decline several times.
This method and equipment can be used in the sheet metal structure manufacturing fields such as automobile, building, and uniform thickness or uniform thickness not, the large format sheet metal of material of the same race or not of the same race, coating do not have the distortion welding and make.
Description of drawings
Fig. 1 is a process equipment schematic diagram of the present invention;
Fig. 2 is a process equipment centering splicing body schematic diagram of the present invention;
Fig. 3 is cutting---welding focus head structural representation;
Fig. 4 is a switching shift fork part schematic diagram of cutting weldering switching mechanism;
Fig. 5 is a shift fork driving mechanism schematic diagram of cutting weldering switching mechanism;
Fig. 6 represents to change the process of laser cutting nozzle;
Fig. 7 represents to load onto the process of laser cutting nozzle.
The specific embodiment
Explain the specific embodiment of the present invention below in conjunction with accompanying drawing.Equipment shown in Figure 1 is by blanket detent mechanism 1, Y-axis 2, hydraulic system 3, light-conducting system 4, cutting---and welding focus head 5, cut weldering switching mechanism 7, right jaw 6, left jaw 8, blanket clamp mechanism 9, auxiliary bin 10, digital control system 11 and laser instrument 12 and form, the 13rd, blanket.
Fig. 2 further describes blanket centering splicing body of the present invention, is made up of right jaw 6 and left jaw 8, is driven by stepper motor 14 and ball-screw 15 respectively, is equipped with the right side, left blanket clamp mechanism 9 on right, the left jaw respectively, is driven by hydraulic cylinder 16.
Fig. 3 shows cutting---the detailed structure of welding focus head 5: the outer surface middle part of nozzle 21 has two breach b around symmetry on the boss, nozzle top is orientational cone-shaped surface, symmetry is being adorned two taper pins 22, nozzle 21 is tightened on the helicoid of guide cylinder 24 by taper pin 22, the inner conical surface of its top orientational cone-shaped surface and guide cylinder 24 is closely cooperated, reach sealing effectiveness.In the undercut groove that two semi-rings 23 embed on the guide cylinders 24, link to each other with adjusting nut 33 by screw simultaneously, adjusting nut 33 links to each other with microscope base 25 by screw thread, and straight pin 31 passes in the keyway that microscope base 25 enters guide cylinder 24, the circumferential rotation of restricted guidance tube 24; Rotation adjusting nut 33 can make guide cylinder 24 drive nozzle 21 and move up and down, thereby regulates the relative position of nozzle 21 bottom apertures and laser focus point, and 32 is fastening spiro loop.Condenser lens 26 is fixed in the microscope base 25 by keeper 27, the auxiliary gas jets 36 of auxiliary tracheae 28 of welding and welding is communicated with the auxiliary tracheae seat 29 of welding, the latter is fixed on the microscope base 25 by bearing pin, can rotate around the bearing pin center line, because the effect of torque spring, the auxiliary tracheae seat 29 of welding is subjected to the anticlockwise moment effect, stop screw 30 on it is pressed on the microscope base 25, when cutting---when the welding focus head moves to switching position, because block effect, certain space is got out of the way in the auxiliary tracheae seat 29 clockwise deflections of welding, is convenient to nozzle 21 and switches; In case cutting---when the welding focus head left switching position, 29 of the auxiliary tracheae seats of welding broke away from block, were rotated counterclockwise, and homing makes the auxiliary gas jets 36 of welding point to the welding job zone.
Fig. 4 represents to cut the switching shift fork part of weldering switching mechanism: shift fork 37 is placed in guide post 38, fixing by location taper pin 39, there is the projection of radial symmetric the shift fork end, and the middle part of nozzle 21 is corresponding around two breach b on the boss among its radial distance and Fig. 3, thereby forms two negative area α of shift fork; Shift fork 37 places are with sleeve 40, and piece 41 is colluded by what screw connected that two radial symmetric entad protrude in its end, and shaft block ring 42 is stuck in moving down of restriction sleeve 40 on the shift fork 37.From depression angle, the symmetrical bossing of shift fork 37 overlaps with colluding piece 41 usually, promptly the negative area α of shift fork 37 with collude 41 one-tenth 90 ° of angles of piece.Feather key 43 is fixed on the lifter plate of shift fork driving mechanism, embeds in the keyway of sleeve 40 the circumferential rotation of restriction sleeve 40 to be slidingly matched.The annular groove 44 of guide post 38 holds aforementioned lifter plate and embeds.
Fig. 5 promotes tooth bar 48 for the shift fork driving mechanism schematic diagram of piece weldering switching mechanism, the piston rod 46 of horizontal hydraulic cylinder 45 by joint 47, and the reciprocating motion of tooth bar 48 drives guide post 38 for gear 49 by key 50 and shift fork 37 rotates.51 is horizontal limit switch among Fig. 5,52 is horizontal stop screw, 53 is the horizontal hydraulic pressure cylinder housing, the piston rod 55 of vertical hydraulic cylinder 54 links to each other with lifter plate 56, lifter plate 56 embeds in the annular groove 44 of aforementioned guide post 38, guide post 38 and shift fork 37 are moved up and down, and 57 are the lifting stop screw, and 58 are the lifting limit switch.
Fig. 6 represents to change the process of laser cutting nozzle.
Shown in Fig. 6 (a), cutting welding focus head moves to switching position, it is coaxial with cutting welding focus head to switch shift fork, colludes middle part that piece all aims at the laser cutting nozzle around the boss breach on bossing on the shift fork and the sleeve, and the switching shift fork begins to do ascending motion;
After the rising of Fig. 6 (b) switching shift fork puts in place, bossing on the shift fork inserts the middle part of nozzle around the boss breach, the middle part that piece passes nozzle of colluding on the sleeve is positioned at the middle part of nozzle around the boss top around the boss breach, shift fork is rotated counterclockwise 90 °, sleeve is subjected to the restriction of feather key, still is in the origin-location;
After Fig. 6 (c) shift fork is rotated counterclockwise and puts in place, two taper pins on the nozzle break away from the thread helix face of guide cylinder endoporus bottom, be in the indentation, there of the both sides symmetry of helicoid, the orientational cone-shaped surface of its top orientational cone-shaped surface and guide cylinder is unclamped, the nozzle middle part is in colluding under the piece on the sleeve around the non-notch position of boss, switches shift fork and begins to do descending motion;
Fig. 6 (d) switches shift fork and descends; the piece that colludes on the sleeve moves down by the non-notch position drive nozzle of nozzle middle part around boss; finish the work of changing the laser cutting nozzle; connect protection-gas welding; welding protection gas curtain seat then produces the protection gas curtain; make condenser lens 26 not contaminated, cutting welding this moment focus head just can be used for welding.
Fig. 7 is a process of loading onto the laser cutting nozzle
Shown in Fig. 7 (a), cutting welding focus head moves to switching position, and it is coaxial with cutting welding focus head to switch shift fork, and two taper pins on the nozzle are aimed at the indentation, there of cutting welding focus head guide cylinder endoporus bottom helicoid, switch shift fork and begin to do ascending motion.
Fig. 7 (b), after the switching shift fork was raised to the position, two taper pins on the nozzle passed the breach of cutting welding focus head guide cylinder endoporus bottom helicoid, are in helicoid and screw in height, and shift fork turns clockwise 90 °, and sleeve is subjected to the restriction of feather key, still is in the origin-location;
After Fig. 7 (c) shift fork turns clockwise and puts in place, two taper pins on the nozzle screw on the thread helix face of guide cylinder endoporus bottom, under the effect of helicoid active force, the location inner conical surface of nozzle top orientational cone-shaped surface and guide cylinder closely cooperates, reach sealing effectiveness, the gap portions around boss at nozzle middle part is in colluding under the piece on the sleeve, switches shift fork and begins to do descending motion;
Fig. 7 (d) switches shift fork and descends, and the piece that colludes on the sleeve passes the nozzle middle part and moves down around the breach of boss, has finished the work of loading onto the laser cutting nozzle, closes protection-gas welding, opens the auxilliary gas of cutting, and cutting welding this moment focus head just can be used for cutting.
When the present invention was used for the welding of coachbuilt body base plate, baseboard material can be zinc-plated automotive sheet, and thickness of slab 0.8mm is welded into 3.2 meters * 1.9 meters large format base plate by two 1.6 meters * 1.9 meters plates, and the welding width is 1.9 meters.When cutting edge with laser, CO
21.5 kilowatts of laser powers, 4.5 meters/minute of cutting speeds adopt nitrogen as Cutting Gas, gas pressure 4.8Bar; During laser weld, CO
22.0 kilowatts of laser powers, 5 meters/minute of speeds of welding, protection gas argon gas, 25 liters/minute of flows, protection gas curtain compressed air.
Claims (8)
1. sheet laser cutting---welding technology the steps include:
(1) after a side blanket to be welded enters Working position, uses clamp, by having cutting nozzles
Laser Machining head is along straight line reach cutting, and cutting finishes, and this side blanket is return;
(2) opposite side blanket to be welded enters same Working position, uses clamp, is added by same laser
The foreman retreats cutting along same processing linear, and cutting finishes, and this side blanket is return;
(3) cut the cutting nozzles that laser Machining head is unloaded in weldering switching mechanism;
(4) the both sides blanket through cutting loses centering piece, Laser Processing by centering splicing body compensation joint-cutting
Head carries out laser weld along identical processing linear reach with cutting;
(5) welding finishes, and unclamps the both sides anchor clamps, and the centering splicing body is return original position, unloads workpiece.
2. sheet laser as claimed in claim 1 cutting---welding technology, it is characterized by clamp after, before welding finishes, be in clamped condition all the time; After cutting nozzles unloads, promptly open the protection gas curtain of laser Machining head, until refilling cutting nozzles.
3. sheet laser cutting as claimed in claim 2---welding technology is characterized by when carrying out laser cutting, uses nitrogen, argon gas or oxygen; Use argon shield during laser weld; The protection gas curtain uses nitrogen or compressed air.
4. be used for sheet laser cutting---the equipment of welding, comprise that Y-axis, laser Machining head, light-conducting system, laser instrument, auxiliary bin and digital control system, auxiliary bin split both sides, Y-axis below, Y-axis is made of crossbeam, servomotor and leading screw, guide rail, laser instrument passes to the light-conducting system, the light-conducting system light path that are positioned on the Y-axis with laser through light path and connects the laser Machining head on the Y-axis, the equipment operation be is characterized in that by digital control system control:
(1) described laser Machining head is cutting---the welding focus head comprises condenser lens and microscope base, microscope base
Inner chamber top placement condenser lens, bottom are built-in with the guide cylinder of slip chimeric with it, cutting spray
Mouth is threaded onto guide cylinder bottom inside spin;
(2) between the auxiliary bin, the Y-axis below is provided with the blanket detent mechanism of Driven by Hydraulic Cylinder;
(3) blanket detent mechanism end is provided with by what shift fork and shift fork driving mechanism were formed and cuts weldering switching mechanism;
(4) below the auxiliary bin, blanket detent mechanism both sides are provided with the centering of being made up of left jaw and right jaw
Splicing body, drive by stepper motor and ball-screw respectively;
(5) split left and right blanket clamp mechanism on the left and right jaw of centering splicing body, drive by hydraulic cylinder
Moving.
5. sheet laser cutting---the equipment of welding that is used for as claimed in claim 4, it is characterized in that cutting---welding focus head guide cylinder endoporus top is followed successively by turbination and thread helix face for conical, endoporus bottom, described cutting nozzles endoporus is conical, cutting nozzles outer surface middle part is for to have two breach around boss, top symmetry, around more than the boss being turbination, size and the turbination match of guide cylinder endoporus bottom.
6. sheet laser cutting---the equipment of welding that is used for as claimed in claim 5 is characterized in that described guide cylinder endoporus bottom is connected with the gas curtain seat, cutting---welding focus head microscope base is connected through the hinge and welds auxiliary tracheae.
7. as claim 5 or 6 described sheet laser cutting---the equipment of welding that are used for, it is characterized in that cutting in the weldering switching mechanism:
(1) the tubular shift fork is placed in guide post, is fixed by taper pin, and there is the radial symmetric bossing shift fork end,
Its radial distance is corresponding around two breach of boss with cutting nozzles, and shift fork is with sleeve outward, its
There is the piece that colludes that radial symmetric entad protrudes the end, and colludes piece radial distance and shift fork bossing radially
Distance equates;
(2) the shift fork driving mechanism comprises horizontal hydraulic cylinder and vertical hydraulic cylinder, and the piston rod of horizontal hydraulic cylinder pushes away
Carry-over bar, tooth bar and the gears engaged that is fixed in guide post, the piston rod of vertical hydraulic cylinder and liter
Fall plate and link to each other, lifter plate embeds in the annular groove of guide post
8. sheet laser cutting---the equipment of welding that is used for as claimed in claim 7 is in the axial keyway that it is characterized in that being fixed with feather key on the described lifter plate, sliding the embedding sleeve surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021154996A CN1152764C (en) | 2002-01-30 | 2002-01-30 | Laser cutting-welding technology and apparatus for sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021154996A CN1152764C (en) | 2002-01-30 | 2002-01-30 | Laser cutting-welding technology and apparatus for sheet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1368418A true CN1368418A (en) | 2002-09-11 |
| CN1152764C CN1152764C (en) | 2004-06-09 |
Family
ID=4743692
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB021154996A Expired - Fee Related CN1152764C (en) | 2002-01-30 | 2002-01-30 | Laser cutting-welding technology and apparatus for sheet |
Country Status (1)
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|---|---|
| CN (1) | CN1152764C (en) |
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| CN1305725C (en) * | 2002-11-12 | 2007-03-21 | 大众汽车公司 | Method for producing white bodywork and white bodywork therefrom |
| CN100389001C (en) * | 2003-09-05 | 2008-05-21 | 张道勇 | Processing method of profiled screening cover |
| CN101765735A (en) * | 2007-08-01 | 2010-06-30 | 卡尔弗罗伊登柏格两合公司 | Be used to make the method for seal ring |
| CN101376194B (en) * | 2008-08-19 | 2011-02-16 | 东莞华中科技大学制造工程研究院 | On-line measurement compensating mechanism for laser beam welding |
| CN101606285B (en) * | 2007-04-20 | 2011-04-13 | 三菱电机株式会社 | Laser oscillator |
| CN102649193A (en) * | 2011-02-24 | 2012-08-29 | 宝山钢铁股份有限公司 | Online laser cutting and welding device and method of band steel |
| CN101557902B (en) * | 2006-09-22 | 2012-11-07 | 西门子Vai金属科技有限公司 | Device for the weld joining of sheet metal strips |
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| CN105643111A (en) * | 2015-12-16 | 2016-06-08 | 广东新会中集特种运输设备有限公司 | Method and device for splicing large-width steel plates |
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| CN1305725C (en) * | 2002-11-12 | 2007-03-21 | 大众汽车公司 | Method for producing white bodywork and white bodywork therefrom |
| CN100389001C (en) * | 2003-09-05 | 2008-05-21 | 张道勇 | Processing method of profiled screening cover |
| CN101557902B (en) * | 2006-09-22 | 2012-11-07 | 西门子Vai金属科技有限公司 | Device for the weld joining of sheet metal strips |
| CN101606285B (en) * | 2007-04-20 | 2011-04-13 | 三菱电机株式会社 | Laser oscillator |
| CN101765735A (en) * | 2007-08-01 | 2010-06-30 | 卡尔弗罗伊登柏格两合公司 | Be used to make the method for seal ring |
| CN101376194B (en) * | 2008-08-19 | 2011-02-16 | 东莞华中科技大学制造工程研究院 | On-line measurement compensating mechanism for laser beam welding |
| CN102649193A (en) * | 2011-02-24 | 2012-08-29 | 宝山钢铁股份有限公司 | Online laser cutting and welding device and method of band steel |
| CN102649193B (en) * | 2011-02-24 | 2015-04-01 | 宝山钢铁股份有限公司 | Online laser cutting and welding device and method of band steel |
| CN104097027A (en) * | 2013-04-10 | 2014-10-15 | 昆山思拓机器有限公司 | Manufacturing method of OLED (Organic Light Emitting Diode) metal mask plate |
| CN105377502A (en) * | 2013-07-02 | 2016-03-02 | 普锐特冶金技术奥地利有限责任公司 | Device for moving an arrangement for cutting and welding metal strips |
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| CN103978351A (en) * | 2014-06-06 | 2014-08-13 | 安徽江淮汽车股份有限公司 | Lengthening-remolding method of automotive parts |
| CN104015110A (en) * | 2014-06-10 | 2014-09-03 | 昆山宝锦激光拼焊有限公司 | Tailored blank laser welding grinding tool |
| CN105643111B (en) * | 2015-12-16 | 2017-12-15 | 广东新会中集特种运输设备有限公司 | Significantly steel plate splicing method and device |
| CN105643111A (en) * | 2015-12-16 | 2016-06-08 | 广东新会中集特种运输设备有限公司 | Method and device for splicing large-width steel plates |
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| CN106392317B (en) * | 2016-11-14 | 2018-04-17 | 江苏盘古机器人科技有限公司 | The automatic soldering device of laser welding systems |
| CN106392317A (en) * | 2016-11-14 | 2017-02-15 | 江苏盘古机器人科技有限公司 | Automatic welding device for laser welding system |
| CN106903432A (en) * | 2017-05-08 | 2017-06-30 | 哈尔滨工业大学（威海） | Based on the laser assembly solder device and its control method that are rolled with weldering |
| CN106903432B (en) * | 2017-05-08 | 2019-01-04 | 哈尔滨工业大学（威海） | Based on the laser assembly solder device and its control method rolled with weldering |
| CN108480911A (en) * | 2018-06-19 | 2018-09-04 | 苏州长鸿机械设备有限公司 | A kind of laser welding processing unit (plant) based on microelectric technique |
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| CN109047983A (en) * | 2018-09-26 | 2018-12-21 | 浙江浙建钢结构有限公司 | Cutting, welding steel structure double-duty plant |
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| CN109226968A (en) * | 2018-10-29 | 2019-01-18 | 渤海造船厂集团有限公司 | A kind of method of sheet material double face narrow gap scanning galvanometer laser-MAG compound welding |
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