CN105108338B - Method for controlling laser welding - Google Patents
Method for controlling laser welding Download PDFInfo
- Publication number
- CN105108338B CN105108338B CN201510638273.3A CN201510638273A CN105108338B CN 105108338 B CN105108338 B CN 105108338B CN 201510638273 A CN201510638273 A CN 201510638273A CN 105108338 B CN105108338 B CN 105108338B
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- Prior art keywords
- laser welding
- point
- straight line
- serves
- welding
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Classifications
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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
-
- 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
- B23K2103/00—Materials to be soldered, welded or cut
- B23K2103/08—Non-ferrous metals or alloys
- B23K2103/10—Aluminium or alloys thereof
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- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Laser Beam Processing (AREA)
Abstract
The invention discloses a method for controlling laser welding. The method comprises the following steps that 1, the weld seam width w of a workpiece to be welded is measured; 2, the locus of laser welding is controlled as x0=x1+delta*cos beta, y0=y1+delta*sin beta, x=x0+R*cos alpha, y=y0+R*sin alpha, wherein w=2R+phi, x0 and y0 serve as coordinates of a point on a straight line, x1 and y1 serve as starting point coordinates of the straight line, delta serves as a point distance of the straight line, beta serves as an inclination angle of the straight line, R serves as a shaking radius, alpha serves as a polar angle, x and y serve as coordinates of a point on a circle (that is a helical line locus), phi serves as a welding point diameter, and delta is smaller than phi. According to the method for controlling laser welding, the locus of a welding helical line is adjusted by adjusting the shaking radius and the point distance for changes of the weld seam width, therefore, a molten pool can flow more fully, the problems of weld seam depression, undercut, point burst and needle holes which are brought by traditional laser welding can be effectively solved, the welding performance is improved, and the quality rate of products is improved.
Description
Technical field
The present invention relates to laser welding field, more precisely, is related to the control method of galvanometer spiral wire bonding in laser.
Background technology
At present the most frequently used solder technology is laser welding, and cooperation of the laser welding to welded piece has high demands, welding position
Putting must be in the focusing range of laser beam, and the weld strength of foreign material is low, has limited to their using value.Laser Welding
Connect and can be applicable to automobile power cell industry, power battery case material typically adopts 3 series alloys, and aluminium alloy is using biography
There is probability height, pore, pinprick, and quality of fit (splicing gap, the height of product at quick-fried in the laser welding of system
Difference) directly affect Product jointing performance and outward appearance.
The content of the invention
The present invention is in order to solve problems of the prior art, there is provided a kind of method of control laser welding.
In order to realize above-mentioned purpose, the technical scheme is that：A kind of method of control laser welding, including following
Step：
A) measure the weld width w of workpiece to be welded；
B) track for controlling laser welding is x0=x1+ Δ * cos β, y0=y1+ Δ * sin β, x=x0+ R*cos α, y=y0+
R*sinα；Whereinx0With y0For the coordinate of Points on Straight Line, x1With y1Straight line starting point coordinate, Δ are rectilinear point away from β is
Straight incline angle, R are shake radius, and α is polar angle, and x and y is the coordinate (i.e. spiral trajectory) put on circle,It is straight for solder joint
Footpath, and Δ is less than
The method of welding disclosed by the invention, for the change of weld width, by adjusting shake radius, point away from adjusting
The track of Brazing helix, can allow molten bath flowing more fully, can effectively reduce the weld seam that conventional laser welding brings and stay, sting
Side and quick-fried point, the problem of pinprick, lift welding performance, improve the excellent rate of product.
Description of the drawings
Welding track schematic diagram when Fig. 1 to Fig. 4 shows that different parameters are arranged.
Specific embodiment
In order that present invention solves the technical problem that, the technical scheme that adopts, the technique effect that obtains be it can be readily appreciated that below
With reference to specific accompanying drawing, the specific embodiment of the present invention is described further.
The invention discloses a kind of method of control laser welding, comprises the following steps：
A) measure the weld width w of workpiece to be welded；
B) entelechy coordinated manner and straight line polar coordinate mode is set up, using track of the fitting track as laser welding both this
Path：x0=x1+ Δ * cos β, y0=y1+ Δ * sin β, x=x0+ R*cos α, y=y0+R*sinα；Whereinx0With
y0For the coordinate of Points on Straight Line, x1With y1Straight line starting point coordinate, Δ are rectilinear point away from β is straight incline angle, and R is shake half
Footpath, α are polar angle, and x and y is the coordinate (i.e. spiral trajectory) put on circle,For spot size, and Δ is less than
Track schematic diagram when Fig. 1 shows that shake radius is 0.2mm, rail when Fig. 2 shows that shake radius is 0.5mm
Point under mark schematic diagram, both of these case is 0.5mm away from selection.
In a specific embodiment of the present invention, such as when certain metal material is welded, it is desirable to which weld width is
1.2mm, fusion penetration 1.5mm.If laser power is specific, the diameter of laser solder joint may be selected to be 0.6mm, then shake radius R and arrange
For 0.3mm, put and 0.3mm is set to away from Δ.Shake radius determines weld width, put away from directly affect pool depth (point away from
Setting should be less than laser spot size), require for different weld widths and pool depth, shake radius can for example be arranged
It is as follows：
| Sequence number | Shake radius R (mm) | Weld width W (mm) |
| 1 | 0.2 | 1.0 |
| 2 | 0.3 | 1.2 |
| 3 | 0.4 | 1.4 |
| 4 | 0.5 | 1.6 |
| 5 | 0.6 | 1.8 |
| 6 | 0.7 | 2.0 |
| 7 | 0.8 | 2.2 |
| 8 | 0.9 | 2.4 |
| 9 | 1.0 | 2.6 |
| 10 | 1.0 | 2.4 |
Require for different weld widths and pool depth, shake radius can for example arrange as follows：
| Sequence number | Point is away from Δ (mm) | Pool depth D (mm) |
| 1 | 0.1 | 2.0 |
| 2 | 0.2 | 1.8 |
| 3 | 0.3 | 1.6 |
| 4 | 0.4 | 1.4 |
| 5 | 0.5 | 1.2 |
The method of welding disclosed by the invention, for the change of weld width, by adjusting shake radius, point away from adjusting
The track of Brazing helix, can allow molten bath flowing more fully, can effectively reduce the weld seam that conventional laser welding brings and stay, sting
Side and quick-fried point, the problem of pinprick, lift welding performance, improve the excellent rate of product.
The present invention is by preferred embodiment having carried out detailed explanation.However, by studying carefully above, to each
The change and increase of embodiment is obvious for those of ordinary skill in the art.It is intended that institute
These changes having and increase all fall in the scope protected by the claims in the present invention.
Claims (1)
1. it is a kind of control laser welding method, it is characterised in that comprise the following steps：
A) measure the weld width w of workpiece to be welded；
B) track for controlling laser welding is x0=x1+ Δ * cos β, y0=y1+ Δ * sin β, x=x0+ R*cos α, y=y0+R*
sinα；Whereinx0With y0For the coordinate of Points on Straight Line, x1With y1Straight line starting point coordinate, Δ are rectilinear point away from β is straight
Line angle of inclination, R are shake radius, and α is polar angle, and x and y is the coordinate i.e. spiral trajectory put on circle,For spot size, and
Δ is less than
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510638273.3A CN105108338B (en) | 2015-09-30 | 2015-09-30 | Method for controlling laser welding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510638273.3A CN105108338B (en) | 2015-09-30 | 2015-09-30 | Method for controlling laser welding |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105108338A CN105108338A (en) | 2015-12-02 |
| CN105108338B true CN105108338B (en) | 2017-03-22 |
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| CN201510638273.3A Active CN105108338B (en) | 2015-09-30 | 2015-09-30 | Method for controlling laser welding |
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| CN (1) | CN105108338B (en) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105562930B (en) * | 2016-03-03 | 2017-10-03 | 武汉华工激光工程有限责任公司 | A kind of method for laser welding of power battery case |
| CN106825923B (en) * | 2017-02-09 | 2018-11-16 | 深圳市吉祥云科技有限公司 | The welding technique of aluminium sheet and aluminum frame component in a kind of 3C keyboard |
| 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 |
| CN109382581B (en) * | 2017-08-09 | 2020-10-27 | 大族激光科技产业集团股份有限公司 | Laser welding method, storage medium, and laser welding apparatus |
| 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 |
| CN107584211B (en) * | 2017-10-16 | 2024-03-22 | 苏州迅镭激光科技有限公司 | High-power laser welding system based on high-speed scanning galvanometer and welding method thereof |
| CN107570870A (en) * | 2017-10-18 | 2018-01-12 | 大族激光科技产业集团股份有限公司 | A kind of welding method of power battery module connection sheet |
| CN108247207A (en) * | 2017-12-29 | 2018-07-06 | 浙江镭弘激光科技有限公司 | The wide weld seam welding method of heat exchanger plates |
| CN109338294B (en) * | 2018-11-12 | 2021-06-22 | 阿德文泰克全球有限公司 | Method for laser welding of metal mask plate and metal mask plate |
| CN111633336B (en) * | 2020-05-22 | 2022-03-22 | 哈尔滨焊接研究院有限公司 | Laser vector welding method for improving stability of welding process |
| 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 |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US7238915B2 (en) * | 2005-09-26 | 2007-07-03 | Ultratech, Inc. | Methods and apparatus for irradiating a substrate to avoid substrate edge damage |
| KR101179983B1 (en) * | 2009-02-23 | 2012-09-07 | 한미반도체 주식회사 | Method for Generating Laser Beam Radiation Trajectories for Processing Semiconductor Packages |
| CN102500927B (en) * | 2011-09-30 | 2015-01-14 | 武汉克瑞斯光电技术有限公司 | Optical vibrating mirror type laser tablet drilling method |
| CN203509345U (en) * | 2013-08-15 | 2014-04-02 | 中国电子科技集团公司第四十八研究所 | Welding-track auto-correction system |
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