CN104999179A - Laser welding method for large-gap weld - Google Patents
Laser welding method for large-gap weld Download PDFInfo
- Publication number
- CN104999179A CN104999179A CN201510471531.3A CN201510471531A CN104999179A CN 104999179 A CN104999179 A CN 104999179A CN 201510471531 A CN201510471531 A CN 201510471531A CN 104999179 A CN104999179 A CN 104999179A
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- laser
- welding
- track
- arc gap
- wide arc
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/20—Bonding
- B23K26/21—Bonding by welding
- B23K26/24—Seam welding
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- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
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- Mechanical Engineering (AREA)
- Laser Beam Processing (AREA)
Abstract
The invention is suitable to be used for the field of laser welding, and provides a laser welding method for large-gap welds. Through reciprocating tracks or overlaying tracks, laser welding is performed, and additional solder or heat resource (composite welding energy source) is not needed. The method increases laser irradiation range just through changing welding paths (that is, laser irradiation paths) of laser, so as to increase melting area and melting quantity of a welding pool, improve tolerance of welding gaps, and increase applicability and convenience for laser welding.
Description
Technical field
The invention belongs to laser weld field, particularly relate to a kind of method for laser welding of wide arc gap weld seam.
Background technology
Laser weld belongs to the high-precision processing method of high-energy-density, poor to the tolerance in gap, therefore requires very high to the quality of fit of welded piece.Excessive welded gaps can cause more failure welding, even do not weld, general technology means usually adopt and solve the insensitive mode in gap, as added solder or adopting laserHybrid welding etc., as shown in Figure 1, there is wide arc gap 4 between workpiece 3 and 5 to be welded, utilize composite welding or fill welding, prolonging welding direction 1 and adopt the mode of linear track 2 to weld, final formation weld seam, but its technical sophistication, apparatus expensive, convenience is poor.
Summary of the invention
The object of the embodiment of the present invention is the method for laser welding providing a kind of wide arc gap weld seam, to solve the problem of existing welding manner complexity.
The embodiment of the present invention realizes like this, a method for laser welding for wide arc gap weld seam, for the workpiece to be welded of wide arc gap, laser scans according to toward renaturation track at workpiece welding region to be welded, laser range of exposures is increased, and the laser realizing wide arc gap weld seam directly welds.
Further, described past renaturation track is Z-shaped track.
Further, increase the speed of laser scanning, welding pool is stirred.
Further, the center of laser scanning and the center superposition of wide arc gap weld seam.
Further, described is arrange and be arranged side by side along welding direction more toward renaturation track.
Further, be describedly two present waveform track, wherein along welding direction arrange relative with another trough of the crest of toward renaturation track.
The method for laser welding of a kind of wide arc gap weld seam that the embodiment of the present invention provides, for the workpiece to be welded of wide arc gap, laser scans according to additivity track at workpiece welding region to be welded, and laser range of exposures is increased, and the laser realizing wide arc gap weld seam directly welds.
Further, described additivity track is helical trajectory or or multiple circle superposition track.
Further, increase the speed of laser scanning, welding pool is stirred.
Further, the center of laser scanning and the center superposition of wide arc gap weld seam.
The invention provides a kind of method for laser welding of wide arc gap weld seam, by carrying out laser weld toward renaturation track or additivity track, do not need additionally to increase solder or thermal source (Combined Welding energy source), (namely laser exposure pathways is increased by means of only the welding track changing laser, increase and swash light-struck area), thus realize the melting area of welding pool and the increase of fusing amount; And pass through track scanning fast, realize the stirring of laser to molten bath, thus improve the tolerance to welded gaps, add applicability and the convenience of laser weld.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the embodiment of the present invention, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the welding schematic diagram of existing laser weld track;
Multiple circle superposition Antiinterference schematic diagrames that Fig. 2 embodiment of the present invention provides;
Fig. 3 is the helical trajectory schematic diagram that the embodiment of the present invention provides;
Fig. 4 is the welding schematic diagram of the Z-shaped track that the embodiment of the present invention provides;
Fig. 5 is that many rows that the embodiment of the present invention provides are symmetrical arranged track schematic diagram.
Detailed description of the invention
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
The embodiment of the present invention provides a kind of method for laser welding of wide arc gap weld seam; for the workpiece to be welded of wide arc gap; laser scans according to toward renaturation track or additivity track at workpiece welding region to be welded, and laser range of exposures is increased, and the laser realizing wide arc gap weld seam directly welds.As needed by two workpiece to be welded, the position of welding is contiguous places, and form wide arc gap weld seam in adjacent place, the to be welded workpiece of the direct contraposition of laser in wide arc gap commissure scans according to toward renaturation track or additivity track.
The present embodiment is not when needing additionally to increase solder or thermal source (Combined Welding energy source), by changing the welding track (i.e. laser exposure pathways) of laser, increase the range of exposures of laser, thus increase melting area and the fusing amount of welding pool, improve the tolerance to welded gaps, add applicability and the convenience of laser weld.
As shown in Figure 2, in an embodiment, described additivity track is multiple circle superposition tracks.
Concrete, there is wide arc gap 41 between (31,51) in workpiece to be welded, laser prolongs welding direction 11, adopts the mode of multiple circle superposition track 21 periodically to carry out laser weld.Because the path of welding increases, the laser illumination energy of commissure is increased, and melting area and the fusing amount of welding pool all increase, and achieve the laser weld of wide arc gap weld seam.
As Fig. 3, in another embodiment, described additivity track is helical trajectory 6.
As Fig. 4, in another embodiment, described past renaturation track is Z-shaped track.
Concrete, there is wide arc gap 42 between (31,51) in workpiece to be welded, laser prolongs welding direction 11, adopts the mode of Z-shaped track 22 periodically to carry out laser weld.Certainly in other embodiments, can be also other reciprocating path, as N font, W font etc.
In another embodiment, described be arrange toward renaturation track more.Z-shaped track 22 as shown in multiple Fig. 2 is arranged side by side along welding direction 11.
Further, described past renaturation track is many rows and the welding direction 11 of prolonging of symmetry is arranged, as shown in Figure 5, described past renaturation track is two and presents waveform track, wherein along welding direction 11 arrange relative with the trough of another waveform track 7 of the crest of a waveform track 7, wherein, the level interval between the crest of each waveform track 7 and trough can be processed needs according to reality and be regulated.
Further, increase the speed of laser scanning, welding pool is stirred.Laser is according to above-mentioned track, periodically turn round rapidly or shuttle-scanning at welding region, due to the speed of laser scanning and track there is circle or toward renaturation or turning quality, molten pool metal can be allowed to stir, further add the bridging capability of weld metal zone metal.
Further, the center of laser scanning and the center superposition of wide arc gap weld seam.
Above content is in conjunction with concrete preferred embodiment further description made for the present invention, can not assert that specific embodiment of the invention is confined to these explanations.For general technical staff of the technical field of the invention; make some equivalent alternative or obvious modification without departing from the inventive concept of the premise; and performance or purposes identical, all should be considered as belonging to the scope of patent protection that the present invention is determined by submitted to claims.
Claims (10)
1. a method for laser welding for wide arc gap weld seam, is characterized in that, for the workpiece to be welded of wide arc gap, laser scans according to toward renaturation track at workpiece welding region to be welded, and laser range of exposures is increased, and the laser realizing wide arc gap weld seam directly welds.
2. method for laser welding as claimed in claim 1, is characterized in that, described past renaturation track is Z-shaped track.
3. method for laser welding as claimed in claim 1 or 2, is characterized in that, increases the speed of laser scanning, welding pool is stirred.
4. method for laser welding as claimed in claim 3, is characterized in that, the center of laser scanning and the center superposition of wide arc gap weld seam.
5. method for laser welding as claimed in claim 3, is characterized in that, described is arrange and be arranged side by side along welding direction more toward renaturation track.
6. method for laser welding as claimed in claim 5, is characterized in that, described past renaturation track is two and presents waveform track, wherein along welding direction arrange relative with another trough of the crest of.
7. a method for laser welding for wide arc gap weld seam, is characterized in that, for the workpiece to be welded of wide arc gap, laser scans according to additivity track at workpiece welding region to be welded, and laser range of exposures is increased, and the laser realizing wide arc gap weld seam directly welds.
8. method for laser welding as claimed in claim 7, is characterized in that, described additivity track is helical trajectory or or multiple circle superposition track.
9. method for laser welding as claimed in claim 7 or 8, is characterized in that, increases the speed of laser scanning, welding pool is stirred.
10. method for laser welding as claimed in claim 9, is characterized in that, the center of laser scanning and the center superposition of wide arc gap weld seam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510471531.3A CN104999179A (en) | 2015-08-04 | 2015-08-04 | Laser welding method for large-gap weld |
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| CN201510471531.3A CN104999179A (en) | 2015-08-04 | 2015-08-04 | Laser welding method for large-gap weld |
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| CN104999179A true CN104999179A (en) | 2015-10-28 |
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| CN201510471531.3A Pending CN104999179A (en) | 2015-08-04 | 2015-08-04 | Laser welding method for large-gap weld |
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Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107234340A (en) * | 2017-07-20 | 2017-10-10 | 大族激光科技产业集团股份有限公司 | A kind of butt welding method of power battery module side plate and end plate |
| CN107309546A (en) * | 2017-07-20 | 2017-11-03 | 中山汉通激光设备有限公司 | A kind of galvanometer laser stitch welding equipment |
| CN107378240A (en) * | 2017-07-20 | 2017-11-24 | 中山汉通激光设备有限公司 | A kind of galvanometer laser stitch welding technique |
| CN107414293A (en) * | 2017-08-03 | 2017-12-01 | 大族激光科技产业集团股份有限公司 | A kind of periodic oscillations method for laser welding and weld assembly |
| CN107552958A (en) * | 2017-08-03 | 2018-01-09 | 大族激光科技产业集团股份有限公司 | A kind of welding method of electrokinetic cell sealing |
| CN107584213A (en) * | 2017-08-22 | 2018-01-16 | 大族激光科技产业集团股份有限公司 | A kind of method for laser welding |
| CN107662048A (en) * | 2016-07-20 | 2018-02-06 | 北京科易动力科技有限公司 | A kind of method of laser stirring welding |
| CN108161225A (en) * | 2018-02-01 | 2018-06-15 | 松下·万宝(广州)压缩机有限公司 | A kind of method for laser welding and compressor |
| CN109702342A (en) * | 2019-01-30 | 2019-05-03 | 华工法利莱切焊系统工程有限公司 | Aluminium alloy laser welding method |
| JP2019181506A (en) * | 2018-04-09 | 2019-10-24 | トヨタ自動車株式会社 | Rectangular wire laser welding method |
| CN110869158A (en) * | 2017-07-13 | 2020-03-06 | 通快激光与系统工程有限公司 | Method and device for joining at least two workpieces |
| CN110893517A (en) * | 2018-09-12 | 2020-03-20 | 丰田自动车株式会社 | Laser welding method for coil wire |
| CN111069802A (en) * | 2018-10-19 | 2020-04-28 | 双叶产业株式会社 | Welding method |
| CN111369110A (en) * | 2020-02-25 | 2020-07-03 | 北京博清科技有限公司 | Welding task execution method, device, equipment and storage medium |
| CN112643204A (en) * | 2020-12-01 | 2021-04-13 | 东方电气集团东方锅炉股份有限公司 | Laser tube plate welding process suitable for flush type and strength welding |
| CN113560730A (en) * | 2021-07-20 | 2021-10-29 | 深圳泰德激光科技有限公司 | Method and device for welding plates and computer storage medium |
| CN116944680A (en) * | 2023-09-20 | 2023-10-27 | 山东大学 | Laser scanning welding method for small round weld joint |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040188395A1 (en) * | 2002-05-24 | 2004-09-30 | Israel Stol | Laser-hybrid welding with beam oscillation |
| CN101100030A (en) * | 2006-07-04 | 2008-01-09 | 华中科技大学 | Plate-bending online laser welding technology and its equipment |
| CN101716701A (en) * | 2009-12-10 | 2010-06-02 | 哈尔滨工业大学 | Method for realizing swing welding with laser-GMA electric arc hybrid welding device |
| CN103056533A (en) * | 2012-12-20 | 2013-04-24 | 华中科技大学 | Oscillatory scanning laser beam-electric arc hybrid welding method and system |
| CN104308362A (en) * | 2014-08-27 | 2015-01-28 | 深圳市大族激光科技股份有限公司 | Laser welding method for cambered stamping part |
-
2015
- 2015-08-04 CN CN201510471531.3A patent/CN104999179A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040188395A1 (en) * | 2002-05-24 | 2004-09-30 | Israel Stol | Laser-hybrid welding with beam oscillation |
| CN101100030A (en) * | 2006-07-04 | 2008-01-09 | 华中科技大学 | Plate-bending online laser welding technology and its equipment |
| CN101716701A (en) * | 2009-12-10 | 2010-06-02 | 哈尔滨工业大学 | Method for realizing swing welding with laser-GMA electric arc hybrid welding device |
| CN103056533A (en) * | 2012-12-20 | 2013-04-24 | 华中科技大学 | Oscillatory scanning laser beam-electric arc hybrid welding method and system |
| CN104308362A (en) * | 2014-08-27 | 2015-01-28 | 深圳市大族激光科技股份有限公司 | Laser welding method for cambered stamping part |
Cited By (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107662048A (en) * | 2016-07-20 | 2018-02-06 | 北京科易动力科技有限公司 | A kind of method of laser stirring welding |
| US11565348B2 (en) | 2017-07-13 | 2023-01-31 | Trumpf Laser- Und Systemtechnik Gmbh | Methods and systems for joining at least two workpieces |
| CN110869158B (en) * | 2017-07-13 | 2022-04-01 | 通快激光与系统工程有限公司 | Method and device for joining at least two workpieces |
| CN110869158A (en) * | 2017-07-13 | 2020-03-06 | 通快激光与系统工程有限公司 | Method and device for joining at least two workpieces |
| CN107309546A (en) * | 2017-07-20 | 2017-11-03 | 中山汉通激光设备有限公司 | A kind of galvanometer laser stitch welding equipment |
| CN107378240A (en) * | 2017-07-20 | 2017-11-24 | 中山汉通激光设备有限公司 | A kind of galvanometer laser stitch welding technique |
| CN107234340A (en) * | 2017-07-20 | 2017-10-10 | 大族激光科技产业集团股份有限公司 | A kind of butt welding method of power battery module side plate and end plate |
| CN107414293A (en) * | 2017-08-03 | 2017-12-01 | 大族激光科技产业集团股份有限公司 | A kind of periodic oscillations method for laser welding and weld assembly |
| CN107552958A (en) * | 2017-08-03 | 2018-01-09 | 大族激光科技产业集团股份有限公司 | A kind of welding method of electrokinetic cell sealing |
| CN107584213A (en) * | 2017-08-22 | 2018-01-16 | 大族激光科技产业集团股份有限公司 | A kind of method for laser welding |
| CN108161225A (en) * | 2018-02-01 | 2018-06-15 | 松下·万宝(广州)压缩机有限公司 | A kind of method for laser welding and compressor |
| JP2019181506A (en) * | 2018-04-09 | 2019-10-24 | トヨタ自動車株式会社 | Rectangular wire laser welding method |
| JP7063693B2 (en) | 2018-04-09 | 2022-05-09 | トヨタ自動車株式会社 | Flat wire laser welding method |
| CN110893517A (en) * | 2018-09-12 | 2020-03-20 | 丰田自动车株式会社 | Laser welding method for coil wire |
| CN110893517B (en) * | 2018-09-12 | 2021-05-18 | 丰田自动车株式会社 | Laser welding method for coil wire |
| CN111069802A (en) * | 2018-10-19 | 2020-04-28 | 双叶产业株式会社 | Welding method |
| CN111069802B (en) * | 2018-10-19 | 2022-05-03 | 双叶产业株式会社 | Welding method |
| CN109702342A (en) * | 2019-01-30 | 2019-05-03 | 华工法利莱切焊系统工程有限公司 | Aluminium alloy laser welding method |
| CN109702342B (en) * | 2019-01-30 | 2024-06-11 | 华工法利莱切焊系统工程有限公司 | Laser welding method for aluminum alloy |
| CN111369110A (en) * | 2020-02-25 | 2020-07-03 | 北京博清科技有限公司 | Welding task execution method, device, equipment and storage medium |
| CN112643204A (en) * | 2020-12-01 | 2021-04-13 | 东方电气集团东方锅炉股份有限公司 | Laser tube plate welding process suitable for flush type and strength welding |
| CN113560730A (en) * | 2021-07-20 | 2021-10-29 | 深圳泰德激光科技有限公司 | Method and device for welding plates and computer storage medium |
| CN113560730B (en) * | 2021-07-20 | 2023-03-10 | 深圳泰德激光技术股份有限公司 | Method and device for welding plates and computer storage medium |
| CN116944680A (en) * | 2023-09-20 | 2023-10-27 | 山东大学 | Laser scanning welding method for small round weld joint |
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Application publication date: 20151028 |