CN103495803A - Laser welding method capable of achieving oval welding spots - Google Patents
Laser welding method capable of achieving oval welding spots Download PDFInfo
- Publication number
- CN103495803A CN103495803A CN201310482816.8A CN201310482816A CN103495803A CN 103495803 A CN103495803 A CN 103495803A CN 201310482816 A CN201310482816 A CN 201310482816A CN 103495803 A CN103495803 A CN 103495803A
- Authority
- CN
- China
- Prior art keywords
- welding
- fiber laser
- optical fiber
- initial period
- interstage
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- 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
- B23K26/22—Spot 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
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/08—Devices involving relative movement between laser beam and workpiece
- B23K26/082—Scanning systems, i.e. devices involving movement of the laser beam relative to the laser head
-
- 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
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
- B23K37/047—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work moving work to adjust its position between soldering, welding or cutting steps
Abstract
The invention relates to the technical field of metal material welding, in particular to a laser welding method capable of achieving oval welding spots. Devices used in the laser welding method capable of achieving the oval welding spots comprise a motion platform bearing a workpiece to be machined, a fiber laser welding the workpiece to be machined and a control system for controlling the laser to weld. Due to the fact that the motion platform bears the operation of the workpiece to be machined, and the control system controls the welding time and the welding power of the fiber laser in the process of welding, the oval welding spots are formed. The energy of the fiber laser is controlled and the motion of the workpiece to be machined is borne by the motion platform, the welding waveforms are set to be waveforms advancing gradually and fading out gradually, and the oval welding spots needed by a product are obtained with lower cost, the welding quality and the welding efficiency are improved, and the flexibility is better.
Description
Technical field
The present invention relates to the Metal Material Welding technical field, especially relate to a kind of method for laser welding of realizing oval solder joint.
Background technology
The welding processing of thin sheet of metal generally can be higher to technological requirement.For example, need to guarantee certain rigidity on the razor blade function, need again to keep the sharpness of the edge of a knife, therefore structurally need to be divided into knife rest and two parts of blade simultaneously.Between knife rest and blade, the general welding method of using is connected, but because size and the thickness of knife rest and blade are all very little, and prior welding mode is difficult to realize, therefore most preferred connected mode adopts laser weld exactly.Because the width of blade own is limited, cause damage for fear of welding blade cutting edge position, can be for the position width of welding generally below 0.5mm, the desirable solder joint of product needed or the width dimensions of weld seam are below 0.2mm.Because blade itself is very thin, product does not allow to penetrate continuously the seam weldering, because stitch continuously weldering, can cause the distortion of blade uncontrollable again.Therefore, in order to realize reliable connection the between knife rest and blade, generally adopt interrupted spot welding, the ideal form of solder joint be ellipse simultaneously.At present, impulsed spot welding produce in the more YAG laser instrument of application due to the restriction of itself design, beam quality is poor, therefore is difficult to the solder joint of realizing that 0.2mm is following, welding spot size is mostly more than 0.2mm, and, due to its Power Limitation, production efficiency is lower.Under normal circumstances, the hot spot that laser instrument produces is all circular, and it acts on the solder joint produced on metal is also circle accordingly, as realized oval solder joint, usually adopts in two ways:
One, customize special-purpose eyeglass, change its shape in the transmitting procedure of light beam, finally form oval solder joint.This mode realizes that difficulty is larger, needs ordering lenses, and cost is higher, and flexibility is inadequate.
Two, realize by the inclination plumb joint, but this mode can cause a large amount of laser to lose because of reflection, and have equally the inadequate problem of flexibility.
Summary of the invention
The technical problem to be solved in the present invention is, above-mentioned defect for prior art, a kind of method for laser welding of realizing oval solder joint is provided, overcome in the oval solder joint process of existing techniques in realizing and need to realize by customization specialized lens or inclination plumb joint, cause the defect that cost is higher, flexibility is low and the laser utilization rate is low.
The technical solution adopted for the present invention to solve the technical problems is: a kind of method for laser welding of realizing oval solder joint comprises: carry the motion platform of to be processed; The optical fiber laser welded to machined part, and control the control system that optical fiber laser is welded; To be processed of motion platform carrying is relative motion with optical fiber laser, and control system is controlled bonding power and the time of optical fiber laser and welded, and realizes the formation of oval solder joint.
Further preferred version of the present invention is: the solder joint of described optical fiber laser welding comprises initial period, interstage and end stage, and described optical fiber laser is greater than initial period and end stage at the power in this interstage.
Further preferred version of the present invention is: the asynchronism(-nization) of described optical fiber laser welding initial period and end stage is the weld interval in interstage.
Further preferred version of the present invention is: equal the weld interval of end stage the weld interval of described initial period, and be greater than initial period and end stage the weld interval in interstage
Further preferred version of the present invention is: be 1.3-1.8ms the weld interval of described optical fiber laser intermediate ends, and be 0.8-1.1ms the weld interval of initiating terminal and end end.
Further preferred version of the present invention is: the further preferred time that described optical fiber laser intermediate ends is welded is 1.5ms, and the further preferred time of initiating terminal and the welding of end end is 1.0ms.
Further preferred version of the present invention is: described motion platform drives to be processed operation with the speed of 100-200mm/s.
Further preferred version of the present invention is: the speed of to be processed operation of described motion platform drive is 150mm/s more preferably.
Further preferred version of the present invention is: the power of described optical fiber laser rises to the interstage gradually from initial period, then drops to gradually the power of initial period from this interstage.
Further preferred version of the present invention is: described solder joint width is 0.12-0.15mm, and length is 0.45-0.6mm.
Beneficial effect of the present invention is, by adopting optical fiber laser welding, the operation of routing motion platform, set-up of control system welding waveform is the progressive waveform gradually gone out, reach with lower cost and obtained the required oval solder joint of product, improved welding quality and efficiency, flexibility is better.
The accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described, in accompanying drawing:
Fig. 1 is the laser welding system schematic diagram of the oval solder joint of realization of the embodiment of the present invention;
P-t schematic diagram when Fig. 2 is the welding of optical fiber laser of the embodiment of the present invention;
Fig. 3 is welding p-t schematic diagram corresponding to the solder joint place of the embodiment of the present invention;
Fig. 4 is the solder joint schematic diagram of the embodiment of the present invention;
Fig. 5 is the local enlarged diagram of the solder joint of the embodiment of the present invention.
The specific embodiment
Now by reference to the accompanying drawings, preferred embodiment of the present invention is elaborated.
As shown in Figure 1,2 and 3, the embodiment of the present invention provides a kind of razor blade welder of realizing the method for laser welding of oval solder joint, comprise: the optical fiber laser 1 welded to machined part, carry the motion platform 2 of to be processed, and control the control system 3 that laser instrument is welded; In process, described motion platform 2 and optical fiber laser 1 are the state of relative motion mutually, can be that motion platform 2 moves with optical fiber laser 1 simultaneously, can be also that optical fiber laser 1 is moved with respect to motion platform 2, can also be that optical fiber laser 1 is motionless, motion platform 2 be done relative motion with optical fiber laser, and embodiment of the present invention preferred version is, motion platform 2 carrying workpiece motions, and optical fiber laser 1 is motionless.The power of the described optical fiber laser of the embodiment of the present invention is 100W-500W, preferably is set to 150W, and described motion platform drives to be processed operation with the speed of 100-200mm/s, and further favor speed is 150mm/s.The time that this device completes single blade welding is 0.3s, and the time that prior art is used the YAG laser instrument to complete single blade welding is 2s.By to be processed operation of motion platform 2 carryings, bonding power and time that control system 3 is controlled optical fiber laser 1 are welded, realize the formation of oval solder joint, this optical fiber laser 1 welding forms solder joint and is divided into initial period, interstage and end stage, described optical fiber laser is greater than initial period and end stage at the power in this interstage, it is to rise to gradually the interstage from initial period, drop to gradually again the power of initial period from this interstage, obtain gradually going out progressive waveform, as shown in Figure 3.
As shown in Figure 2-5, be different from initial period and end stage the weld interval in described interstage of the embodiment of the present invention, that is can be to be greater than initial period and end stage the weld interval in interstage in when welding, can be also to be less than initial period and end stage, the preferred scheme of the invention process is the weld interval that is greater than initial period and end stage weld interval in described solder joint interstage, and equal the weld interval of end stage the weld interval of initial period, thereby initial period and the end stage that can form solder joint are circular arc, and the oval solder joint that the interstage is rectangle structure, as shown in Figure 4 and Figure 5.In this enforcement, the rectangular length that described solder joint interstage forms was determined by the speed of service of motion platform and weld interval, in the certain situation of the speed of service of motion platform, weld interval is longer, rectangular length is longer, and weld interval is shorter, and rectangular length is just shorter; The weld interval of initial period of the present invention, interstage and end stage and power are controlled by control system 3, by the length of weld interval, and the control of power, obtain desirable welding effect.
The optical fiber laser electric light transformation efficiency that the present invention uses 25% or more, the beam quality angle of divergence are less than 5mm ﹒ mrad, pumping source life-span, non-maintaining operation and low operating cost etc. over 10W hour, can be easy to solve the problem of welding spot size.
As shown in Figure 1, described optical fiber laser 1 comprises, single-mode fiber 11, main frame 12, support 13 and laser welding system 14.Described main frame 12 is positioned on described support 13, and described single-mode fiber 11 is for connecting described laser welding system 14 and described main frame 12, and the laser that described main frame 12 produces is transmitted to 14 pairs of workpieces to be processed of laser welding system through single-mode fiber 11 and is welded.Described motion platform 2 comprises servo three-dimensional working platform 21, slide block positioning device 22 and clamping device 23, and described slide block positioning device 22 is for by be processed location, and described clamping device 23 is for by be processed clamping, so that the carrying out smoothly of processing.Described control system 3 comprises, switch board 31 and monitor 32, described monitor 32 is positioned at described switch board 31 tops, described monitor 32 is for monitoring welding effect, and according to welding effect, the parameter of weld interval, the platform speed of service and bonding power is finely tuned, until obtain satisfied welding effect.
As shown in Figure 2 and Figure 3, p-t schematic diagram during for described optical fiber laser 1 welding, it is the power time diagram of Laser output, as shown in Figure 3, the time initial period t1 of this optical fiber laser welding be progressive setting, end stage t2 for gradually going out setting, progressive gradually go out arrange the time make the shape of ellipse light spot be achieved.Interstage tx is greater than initial period t1 and end stage t2.Be 1.3-1.8ms the weld interval of described optical fiber laser interstage tx, and further preferably the time is 1.5ms, and be 0.8-1.1ms the weld interval of initial period t1 and end stage t2, and further preferably the time is 1.0ms.
As shown in Figure 4, Figure 5, be solder joint schematic diagram and the local enlarged diagram thereof of the embodiment of the present invention, described solder joint width is 0.12-0.15mm, length is 0.45-0.6mm.
Should be understood that, above embodiment only, in order to technical scheme of the present invention to be described, is not intended to limit, for a person skilled in the art, the technical scheme that can put down in writing above-described embodiment is modified, or part technical characterictic wherein is equal to replacement; And these modifications and replacement all should belong to the protection domain of claims of the present invention.
Claims (10)
1. a method for laser welding of realizing oval solder joint, is characterized in that, comprising: carry the motion platform of to be processed; The optical fiber laser welded to machined part, and control the control system that optical fiber laser is welded; To be processed of motion platform carrying is relative motion with optical fiber laser, and control system is controlled bonding power and the time of optical fiber laser and welded, and realizes the formation of oval solder joint.
2. method according to claim 1 is characterized in that: the solder joint of described optical fiber laser welding comprises initial period, interstage and end stage, and described optical fiber laser is greater than initial period and end stage at the power in this interstage.
3. method according to claim 2, is characterized in that: be different from the weld interval of initial period and end stage the weld interval in described interstage.
4. want the described method of accompanying drawing 3 according to right, it is characterized in that: equal the weld interval of end stage the weld interval of described initial period, and be greater than initial period and end stage the weld interval in interstage.
5. according to the arbitrary described method of claim 2-4, it is characterized in that: be 1.3-1.8ms the weld interval in described optical fiber laser interstage, and be 0.8-1.1ms the weld interval of initial period and end stage.
6. method according to claim 5 is characterized in that: the time of described optical fiber laser intermediate ends welding is 1.5ms, and the time of initiating terminal and the welding of end end is 1.0ms.
7. according to the arbitrary described method of claim 1-4, it is characterized in that, described motion platform drives to be processed operation with the speed of 100-200mm/s.
8. method according to claim 7, is characterized in that, the speed that described motion platform drives to be processed operation is 150mm/s.
9. according to the arbitrary described method of claim 2-4, it is characterized in that: the power of described optical fiber laser rises to the interstage gradually from initial period, then drops to gradually the power of initial period from this interstage.
10. method according to claim 1 and 2, it is characterized in that: described solder joint width is 0.12-0.15mm, length is 0.45-0.6mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310482816.8A CN103495803B (en) | 2013-10-16 | 2013-10-16 | A kind of method for laser welding realizing oval solder joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310482816.8A CN103495803B (en) | 2013-10-16 | 2013-10-16 | A kind of method for laser welding realizing oval solder joint |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103495803A true CN103495803A (en) | 2014-01-08 |
| CN103495803B CN103495803B (en) | 2015-09-09 |
Family
ID=49861111
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310482816.8A Active CN103495803B (en) | 2013-10-16 | 2013-10-16 | A kind of method for laser welding realizing oval solder joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103495803B (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105345258A (en) * | 2015-11-26 | 2016-02-24 | 钢铁研究总院 | Optical fiber laser welding method for reducing welding spatter |
| CN106077953A (en) * | 2016-08-03 | 2016-11-09 | 武汉华工激光工程有限责任公司 | A kind of method and system that sheet metal is carried out nanosecond laser welding |
| CN106271073A (en) * | 2016-08-31 | 2017-01-04 | 武汉华工激光工程有限责任公司 | Vibrations motor shell fragment and the method for laser welding of mass |
| CN106312311A (en) * | 2016-09-23 | 2017-01-11 | 佛山市宏石激光技术有限公司 | Laser welding power control device and method |
| CN109175691A (en) * | 2018-09-28 | 2019-01-11 | 武汉锐科光纤激光技术股份有限公司 | A kind of welding method of galvanized steel |
| CN109465546A (en) * | 2018-02-27 | 2019-03-15 | 深圳市艾雷激光科技有限公司 | Open loop method for laser welding |
| CN111633292A (en) * | 2020-06-05 | 2020-09-08 | 新代科技(苏州)有限公司 | Laser wire feeding welding processing method and system for servo-controlled variable-speed wire feeding |
| US11400546B2 (en) | 2015-01-05 | 2022-08-02 | Cps Technology Holdings Llc | Welding process for a battery module |
| US20220347875A1 (en) * | 2021-05-03 | 2022-11-03 | The Gillette Company Llc | Methods of forming a razor blade assembly |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1994029107A1 (en) * | 1993-06-03 | 1994-12-22 | Zed Instruments Limited | Laser engraving apparatus |
| JP2002001561A (en) * | 2000-06-23 | 2002-01-08 | Matsushita Electric Ind Co Ltd | Oval hole machining method and its apparatus |
| CN1733415A (en) * | 2004-08-11 | 2006-02-15 | 株式会社迪斯科 | Laser processing method |
| CN1966198A (en) * | 2005-11-16 | 2007-05-23 | 株式会社迪斯科 | Laser beam processing machine |
| CN101795808A (en) * | 2007-07-24 | 2010-08-04 | Eo技术有限公司 | Laser processing apparatus and method using beam split |
| CN201719879U (en) * | 2010-07-14 | 2011-01-26 | 辽宁裕通激光应用技术工程有限公司 | Laser cut narrow-slit sieve plate |
-
2013
- 2013-10-16 CN CN201310482816.8A patent/CN103495803B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1994029107A1 (en) * | 1993-06-03 | 1994-12-22 | Zed Instruments Limited | Laser engraving apparatus |
| JP2002001561A (en) * | 2000-06-23 | 2002-01-08 | Matsushita Electric Ind Co Ltd | Oval hole machining method and its apparatus |
| CN1733415A (en) * | 2004-08-11 | 2006-02-15 | 株式会社迪斯科 | Laser processing method |
| CN1966198A (en) * | 2005-11-16 | 2007-05-23 | 株式会社迪斯科 | Laser beam processing machine |
| CN101795808A (en) * | 2007-07-24 | 2010-08-04 | Eo技术有限公司 | Laser processing apparatus and method using beam split |
| CN201719879U (en) * | 2010-07-14 | 2011-01-26 | 辽宁裕通激光应用技术工程有限公司 | Laser cut narrow-slit sieve plate |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11400546B2 (en) | 2015-01-05 | 2022-08-02 | Cps Technology Holdings Llc | Welding process for a battery module |
| CN105345258A (en) * | 2015-11-26 | 2016-02-24 | 钢铁研究总院 | Optical fiber laser welding method for reducing welding spatter |
| CN106077953A (en) * | 2016-08-03 | 2016-11-09 | 武汉华工激光工程有限责任公司 | A kind of method and system that sheet metal is carried out nanosecond laser welding |
| CN106271073A (en) * | 2016-08-31 | 2017-01-04 | 武汉华工激光工程有限责任公司 | Vibrations motor shell fragment and the method for laser welding of mass |
| CN106271073B (en) * | 2016-08-31 | 2019-06-07 | 武汉华工激光工程有限责任公司 | Shake the method for laser welding of motor elastic slice and mass block |
| CN106312311A (en) * | 2016-09-23 | 2017-01-11 | 佛山市宏石激光技术有限公司 | Laser welding power control device and method |
| CN109465546A (en) * | 2018-02-27 | 2019-03-15 | 深圳市艾雷激光科技有限公司 | Open loop method for laser welding |
| CN109175691A (en) * | 2018-09-28 | 2019-01-11 | 武汉锐科光纤激光技术股份有限公司 | A kind of welding method of galvanized steel |
| CN111633292A (en) * | 2020-06-05 | 2020-09-08 | 新代科技(苏州)有限公司 | Laser wire feeding welding processing method and system for servo-controlled variable-speed wire feeding |
| US20220347875A1 (en) * | 2021-05-03 | 2022-11-03 | The Gillette Company Llc | Methods of forming a razor blade assembly |
| US11945130B2 (en) * | 2021-05-03 | 2024-04-02 | The Gillette Company Llc | Methods of forming a razor blade assembly |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103495803B (en) | 2015-09-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103495803B (en) | A kind of method for laser welding realizing oval solder joint | |
| CN102642082B (en) | There is laser process equipment and the laser processing of changeable laser system | |
| CN201002157Y (en) | Selective laser micro-braze-welding system based on vibration mirror scanning | |
| CN201346667Y (en) | Optical-fiber laser dynamic focusing vibrating lens scanning spot welding system | |
| CN107414293A (en) | A kind of periodic oscillations method for laser welding and weld assembly | |
| CN104308362B (en) | A kind of method of the carved punched part of laser welding | |
| CN101439441A (en) | Optical fiber laser dynamic focusing vibration mirror scanning type spot welding system and welding method thereof | |
| CN108465933A (en) | A kind of method and apparatus of laser welding foil and lug | |
| CN101327549B (en) | Non-solder laser welding method and device of network transformator | |
| CN203418238U (en) | Integrated pipe sheet laser cutting machine | |
| EP1747837A1 (en) | Gas laser processing device with control means for adapting the laser gas pressure to the work to be processed | |
| KR101416411B1 (en) | Laser welder | |
| CN108098140A (en) | A kind of method for laser welding of automobile power cell aluminum alloy casing | |
| CN104439587B (en) | A kind of method for laser welding | |
| CN109048059A (en) | A kind of sheet laser scanning welding with filler wire method | |
| CN110560896A (en) | laser welding device and welding method thereof | |
| CN109926719A (en) | The welding method and device of a kind of copper and Cu alloy material | |
| CN109909601A (en) | A kind of laser-processing system and method | |
| CN103962731A (en) | Method for cutting metal material with thickness of more than 8 mm under negative pressure by utilization of optical fiber lasers | |
| CN204397163U (en) | combined laser processing device | |
| CN211564832U (en) | SLM double-laser composite processing device | |
| CN111482697A (en) | Water gap cutting system and cutting method | |
| CN205218290U (en) | Qualities of YAG laser welding are improved control system | |
| CN205889886U (en) | Welding set of car light lens | |
| CN205147591U (en) | Mirror welding set shakes at a high speed based on visual positioning system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C53 | Correction of patent of invention or patent application | ||
| CB02 | Change of applicant information |
Address after: No. 9988 Nanshan District Shennan Road Shenzhen city Guangdong province 518000 Applicant after: HANS LASER TECHNOLOGY INDUSTRY GROUP CO., LTD. Address before: 518000 Shenzhen Province, Nanshan District high tech park, North West New Road, No. 9 Applicant before: Dazu Laser Sci. & Tech. Co., Ltd., Shenzhen |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: APPLICANT; FROM: DAZU LASER SCI. + TECH. CO., LTD., SHENZHEN TO: HAN S LASER TECHNOLOGY INDUSTRY GROUP CO., LTD. |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |