CN103801831A - Pulse laser welding device and pulse laser welding method - Google Patents
Pulse laser welding device and pulse laser welding method Download PDFInfo
- Publication number
- CN103801831A CN103801831A CN201310629142.XA CN201310629142A CN103801831A CN 103801831 A CN103801831 A CN 103801831A CN 201310629142 A CN201310629142 A CN 201310629142A CN 103801831 A CN103801831 A CN 103801831A
- Authority
- CN
- China
- Prior art keywords
- pulse
- laser
- pulsewidth
- unit
- stage
- 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
- 238000003466 welding Methods 0.000 title claims abstract description 55
- 238000000034 method Methods 0.000 title claims abstract description 14
- 230000001105 regulatory effect Effects 0.000 claims description 9
- 239000002184 metal Substances 0.000 abstract description 14
- 238000001816 cooling Methods 0.000 description 10
- 238000002844 melting Methods 0.000 description 4
- 230000008018 melting Effects 0.000 description 4
- 238000002425 crystallisation Methods 0.000 description 3
- 230000008025 crystallization Effects 0.000 description 3
- 238000011217 control strategy Methods 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
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
- B23K26/70—Auxiliary operations or equipment
- B23K26/702—Auxiliary equipment
- B23K26/707—Auxiliary equipment for monitoring laser beam transmission optics
-
- 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
- B23K26/02—Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
- B23K26/06—Shaping the laser beam, e.g. by masks or multi-focusing
- B23K26/062—Shaping the laser beam, e.g. by masks or multi-focusing by direct control of the laser beam
- B23K26/0622—Shaping the laser beam, e.g. by masks or multi-focusing by direct control of the laser beam by shaping pulses
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Laser Beam Processing (AREA)
Abstract
The invention provides a pulse laser welding device and a pulse laser welding method. The pulse laser welding device comprises a control unit, a seed laser unit, a pulse adjusting unit and a laser emission unit, wherein the seed laser unit is connected with the control unit and the pulse adjusting unit; the seed laser unit emits seed laser to the pulse adjusting unit; the pulse adjusting unit is connected with the control unit so as to adjust pulse of seed laser according to a signal from the control unit; and the laser emission unit is connected with the pulse adjusting unit so as to emit the adjusted laser to the welding position. According to the provided pulse laser welding device and the pulse laser welding method, metal melted in the welding position can be sufficiently crystallized, and the intensity of a weld joint is higher.
Description
Technical field
The present invention relates to laser weld field, be specifically related to a kind of pulse laser welding connection device and pulse laser welding method.
Background technology
In recent years, laser has been widely used in manufacturing industry, particularly welds, the field such as cutting and surface treatment.Because precision is high, speed is fast, and thermal strain on workpiece is less, and therefore laser welding technology has more and more consequence at welding field.In the time of the welding of some metalworks, the laser that prior art continues transmitting certain hour length to weld often, by metal molten, then stops Emission Lasers, makes metal cooling, thereby completes welding.But, due to the metal suddenly cold and hot of weld, when therefore cooling crystallization bad, cause the intensity of weld seam not high, affected welding quality.
Summary of the invention
In view of this, the present invention aims to provide pulse laser welding connection device and the pulse laser welding method that a kind of welding quality is higher.
One aspect of the present invention provides a kind of pulse laser welding connection device, it comprises control module, seed laser unit, pulse regulation unit and laser emission element, described seed laser unit is connected with described control module, pulse regulation unit, described seed laser unit is to described pulse regulation unit transmitting seed laser, described pulse regulation unit is connected with described control module with according to the pulse of seed laser described in the Signal Regulation of described control module, described laser emission element be connected with described pulse regulation unit with by the Laser emission after regulating to welding position.
Preferably, laser after described adjusting has pulsewidth T1 and the pulse spacing is T2 in the first stage, there is pulsewidth T3 and pulse spacing T2 in second stage, there is pulsewidth T3 and pulse spacing T4 in the phase III, described pulsewidth T3 is less than described pulsewidth T1, and described pulse spacing T4 is greater than described pulse spacing T2.
Preferably, the time span of described first stage, second stage, phase III increases progressively.
Preferably, described pulse regulation unit comprises laserresonator, and described pulse regulation unit is long according to the chamber of laserresonator described in the Signal Regulation of described control module.
Preferably, also comprise collimation unit, described collimation unit is connected with described laser emission element so that described laser emission element is aimed at welding position.
The present invention also provides a kind of pulse laser welding method on the other hand, and it comprises the steps:
Produce seed laser;
Pulse to described seed laser regulates;
Laser emission to welding position after regulating is welded.
Preferably, laser after described adjusting has pulsewidth T1 and the pulse spacing is T2 in the first stage, there is pulsewidth T3 and pulse spacing T2 in second stage, there is pulsewidth T3 and pulse spacing T4 in the phase III, described pulsewidth T3 is less than described pulsewidth T1, and described pulse spacing T4 is greater than described pulse spacing T2.
Preferably, the time span of described first stage, second stage, phase III increases progressively.
Pulse laser welding connection device provided by the present invention and pulse laser welding method, can make the crystallization more fully of weld molten metal, thereby make the intensity of weld seam higher.
Accompanying drawing explanation
Fig. 1 is the structural representation of the pulse laser welding connection device of the embodiment of the present invention.
Fig. 2 is the pulse schematic diagram of embodiment of the present invention laser of transmitting in the time of welding.
The specific embodiment
In order to make object of the present invention, technical scheme and advantage clearer, 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, is not intended to limit the present invention.
Please refer to Fig. 1, the embodiment of the present invention provides a kind of pulse laser welding connection device 10, and it comprises control module 10, seed laser unit 12, pulse regulation unit 13 and laser emission element 14.
The pulse laser welding connection device 10 that the embodiment of the present invention provides, by pulse regulation unit 13 is set, therefore in the time that metalwork is welded, can be by regulating the pulse of laser, make in the starting stage of welding metal rapid melting, then progressively cooling makes it cooling, can make cooling metallic crystal abundant, and weld strength is higher.
Please refer to Fig. 2, in a preferred embodiment, laser after adjusting has pulsewidth T1 and the pulse spacing is T2 in the first stage, there is pulsewidth T3 and pulse spacing T2 in second stage, there is pulsewidth T3 and pulse spacing T4 in the phase III, pulsewidth T3 is less than pulsewidth T1, and pulse spacing T4 is greater than pulse spacing T2.In the first stage, laser pulse width is wider, makes metal rapid melting; In second stage, laser pulse width narrows, and commissure temperature reduces; Phase III, the pulse spacing becomes large, and commissure temperature further reduces, and finally stops Emission Lasers, after metalwork is completely cooling, completes welding.Owing to progressively lowering the temperature by second stage and phase III, make the molten metal can sufficient crystallising, therefore the intensity of weld seam is higher.
In a preferred embodiment, the time span of first stage, second stage, phase III increases progressively, and is also that the Fast Heating time is short, the temperature-fall period time is long, can make molten metal sufficient crystallising.
In a preferred embodiment, pulse regulation unit 13 comprises laserresonator, and pulse regulation unit 13 is long according to the chamber of the Signal Regulation laserresonator of control module 11.Laserresonator is to be generally made up of two laser cavity sheets that keep at a certain distance away, can be by regulating two distances between laser cavity sheet to regulate the chamber of laserresonator long.
In a preferred embodiment, this pulse laser welding connection device 10 also comprises collimation unit 15, and collimation unit 15 is connected so that laser emission element 14 is aimed at welding position with laser emission element 14.
The embodiment of the present invention also provides a kind of pulse laser welding method, and it comprises the steps:
Produce seed laser, seed laser is pulse laser, has fixing pulsewidth and pulse spacing;
Pulse to seed laser regulates;
Laser emission to welding position after regulating is welded.
The pulse laser welding method that the embodiment of the present invention provides, in the time that metalwork is welded, can be by regulating the pulse of laser, make in the starting stage of welding metal rapid melting, then progressively cooling makes it cooling, can make cooling metallic crystal abundant, and weld strength is higher.
In a preferred embodiment, laser after adjusting has pulsewidth T1 and the pulse spacing is T2 in the first stage, has pulsewidth T3 and pulse spacing T2 in second stage, has pulsewidth T3 and pulse spacing T4 in the phase III, pulsewidth T3 is less than pulsewidth T1, and pulse spacing T4 is greater than pulse spacing T2.In the first stage, laser pulse width is wider, makes metal rapid melting; In second stage, laser pulse width narrows, and commissure temperature reduces; Phase III, the pulse spacing becomes large, and commissure temperature further reduces, and finally stops Emission Lasers, after metalwork is completely cooling, completes welding.Owing to progressively lowering the temperature by second stage and phase III, make the molten metal can sufficient crystallising, therefore the intensity of weld seam is higher.
In a preferred embodiment, the time span of first stage, second stage, phase III increases progressively, and is also that the Fast Heating time is short, the temperature-fall period time is long, can make molten metal sufficient crystallising.
As mentioned above, pulse laser welding connection device and pulse laser welding method that the embodiment of the present invention provides, can make the crystallization more fully of weld molten metal, thereby make the intensity of weld seam higher.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any modifications of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., within all should being included in protection scope of the present invention.
Claims (8)
1. a pulse laser welding connection device, it is characterized in that, comprise control module, seed laser unit, pulse regulation unit and laser emission element, described seed laser unit is connected with described control module, pulse regulation unit, described seed laser unit is to described pulse regulation unit transmitting seed laser, described pulse regulation unit is connected with described control module with according to the pulse of seed laser described in the Signal Regulation of described control module, described laser emission element be connected with described pulse regulation unit with by the Laser emission after regulating to welding position.
2. pulse laser welding connection device according to claim 1, it is characterized in that, laser after described adjusting has pulsewidth T1 and the pulse spacing is T2 in the first stage, there is pulsewidth T3 and pulse spacing T2 in second stage, there is pulsewidth T3 and pulse spacing T4 in the phase III, described pulsewidth T3 is less than described pulsewidth T1, and described pulse spacing T4 is greater than described pulse spacing T2.
3. pulse laser welding connection device according to claim 2, is characterized in that, the time span of described first stage, second stage, phase III increases progressively.
4. pulse laser welding connection device according to claim 1, is characterized in that, described pulse regulation unit comprises laserresonator, and described pulse regulation unit is long according to the chamber of laserresonator described in the Signal Regulation of described control module.
5. pulse laser welding connection device according to claim 1, is characterized in that, also comprises collimation unit, and described collimation unit is connected with described laser emission element so that described laser emission element is aimed at welding position.
6. a pulse laser welding method, is characterized in that, comprises the steps:
Produce seed laser;
Pulse to described seed laser regulates;
Laser emission to welding position after regulating is welded.
7. pulse laser welding method according to claim 6, it is characterized in that, laser after described adjusting has pulsewidth T1 and the pulse spacing is T2 in the first stage, there is pulsewidth T3 and pulse spacing T2 in second stage, there is pulsewidth T3 and pulse spacing T4 in the phase III, described pulsewidth T3 is less than described pulsewidth T1, and described pulse spacing T4 is greater than described pulse spacing T2.
8. pulse laser welding method according to claim 7, is characterized in that, the time span of described first stage, second stage, phase III increases progressively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310629142.XA CN103801831B (en) | 2013-11-29 | 2013-11-29 | Pulse laser welding connection device and pulse laser welding method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310629142.XA CN103801831B (en) | 2013-11-29 | 2013-11-29 | Pulse laser welding connection device and pulse laser welding method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103801831A true CN103801831A (en) | 2014-05-21 |
| CN103801831B CN103801831B (en) | 2015-10-28 |
Family
ID=50699474
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310629142.XA Expired - Fee Related CN103801831B (en) | 2013-11-29 | 2013-11-29 | Pulse laser welding connection device and pulse laser welding method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103801831B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06210472A (en) * | 1993-01-13 | 1994-08-02 | Miyachi Technos Kk | Pulse laser welding method for aluminum alloy |
| CN1418753A (en) * | 2002-12-17 | 2003-05-21 | 陈彦宾 | Welding method coordinately controlled by laser-electric arc compound pulsation |
| JP2003251481A (en) * | 2002-02-27 | 2003-09-09 | Sumitomo Heavy Ind Ltd | Pulsed laser welding method and equipment |
| CN101043119A (en) * | 2006-03-23 | 2007-09-26 | 宫地技术株式会社 | Laser beam processing apparatus |
| CN102101209A (en) * | 2009-12-17 | 2011-06-22 | 株式会社大亨 | Pin pulse welding control device and pin pulse welding device |
| CN102892544A (en) * | 2010-05-07 | 2013-01-23 | 林肯环球股份有限公司 | Welding system and method using arc welding machines and laser beam source |
-
2013
- 2013-11-29 CN CN201310629142.XA patent/CN103801831B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06210472A (en) * | 1993-01-13 | 1994-08-02 | Miyachi Technos Kk | Pulse laser welding method for aluminum alloy |
| JP2003251481A (en) * | 2002-02-27 | 2003-09-09 | Sumitomo Heavy Ind Ltd | Pulsed laser welding method and equipment |
| CN1418753A (en) * | 2002-12-17 | 2003-05-21 | 陈彦宾 | Welding method coordinately controlled by laser-electric arc compound pulsation |
| CN101043119A (en) * | 2006-03-23 | 2007-09-26 | 宫地技术株式会社 | Laser beam processing apparatus |
| CN102101209A (en) * | 2009-12-17 | 2011-06-22 | 株式会社大亨 | Pin pulse welding control device and pin pulse welding device |
| CN102892544A (en) * | 2010-05-07 | 2013-01-23 | 林肯环球股份有限公司 | Welding system and method using arc welding machines and laser beam source |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103801831B (en) | 2015-10-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP3200387U (en) | System using consumables with welding puddles | |
| CN202021424U (en) | Laser wire filling welding machine with non-stable cavity and coaxial wire feed | |
| US20170282294A1 (en) | Laser build-up method | |
| JP3199189U (en) | Hot wire welding power supply | |
| CN104227239A (en) | Laser welding method for tailored band steel | |
| RU2015141109A (en) | DEVICE FOR CONTROL OF WELDED SEAM AND METHOD OF CONTROL WITH CONTROL OF VARIOUS ZONE OF BATHES OF FUSIONED METAL | |
| CN109562491A (en) | The method of Laser Welding of Aluminum Alloys system and Laser Welding of Aluminum Alloys | |
| CN105772939A (en) | Laser double-beam welding device and method | |
| WO2009051164A1 (en) | Method for sealing cracks on surface | |
| CN111940905B (en) | Coaxial dual-focus laser filler wire welding method for two sides of thin-plate titanium alloy T-shaped joint | |
| CN104400168A (en) | Automatic tin feeding laser welding method | |
| CN109807417A (en) | A method of laser active cutting welding wire to control droplet temperature | |
| CN103495803A (en) | Laser welding method capable of achieving oval welding spots | |
| CN105728941A (en) | Laser welding apparatus and method thereof | |
| CN103801831B (en) | Pulse laser welding connection device and pulse laser welding method | |
| US20180354074A1 (en) | Method for joining two components in the region of a joint zone by means of at least one laser beam, and method for generating a continuous joint seam | |
| JP2009297759A (en) | Laser bonding method and laser machining apparatus | |
| JP6777023B2 (en) | Welding method of laminated metal foil | |
| JP2010120023A (en) | Laser welding method and laser welding device used for the same | |
| US20070090097A1 (en) | Laser welding system for welding workpiece | |
| CN109482750A (en) | A kind of micro- riveting set of no rivet | |
| KR20130075475A (en) | Device and method for laser brazing | |
| CN103785949B (en) | Laser soldering device and method for laser welding | |
| JP6213332B2 (en) | Hot wire laser combined welding method for thick steel plate | |
| CN209452671U (en) | A rivetless micro riveting device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| GR01 | Patent grant | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20150925 Address after: 311800 Shaoxing Province, east of the town of Zhuji City, the town of White Lake on the new village spring water bay, No. 1209 Applicant after: Jin Hongling Address before: Jiaxing City, Zhejiang province 314050 East Gate Nanhu District Economic Park Road and junction 2, spinning room 210 Applicant before: JIAXING XINGTONG ELECTRONIC TECHNOLOGY CO., LTD. |
|
| CB03 | Change of inventor or designer information |
Inventor after: Cao Yi Inventor before: Wu Wenyuan |
|
| CB03 | Change of inventor or designer information | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170324 Address after: 430074 Optics Valley Road, East Lake New Technology Development Zone, Hubei, China, No. 77, No. Patentee after: Wuhan unitan Intelligent Equipment Co., Ltd. Address before: 311800 Shaoxing Province, east of the town of Zhuji City, the town of White Lake on the new village spring water bay, No. 1209 Patentee before: Jin Hongling |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170420 Address after: 223800 Suqian City, Jiangsu Province Economic Development Zone Industrial Park Sucheng laser creating factory Patentee after: Jiangsu unitan Intelligent Laser Equipment Co. Ltd. Address before: 430074 Optics Valley Road, East Lake New Technology Development Zone, Hubei, China, No. 77, No. Patentee before: Wuhan unitan Intelligent Equipment Co., Ltd. |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151028 Termination date: 20171129 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |