CN103551733A - Method for decreasing welding fume of high-strength steel laser welding - Google Patents
Method for decreasing welding fume of high-strength steel laser welding Download PDFInfo
- Publication number
- CN103551733A CN103551733A CN201310513766.5A CN201310513766A CN103551733A CN 103551733 A CN103551733 A CN 103551733A CN 201310513766 A CN201310513766 A CN 201310513766A CN 103551733 A CN103551733 A CN 103551733A
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- China
- Prior art keywords
- strength steel
- high strength
- steel plate
- laser
- welded
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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
- B23K26/26—Seam welding of rectilinear seams
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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
- B23K26/14—Working by laser beam, e.g. welding, cutting or boring using a fluid stream, e.g. a jet of gas, in conjunction with the laser beam; Nozzles therefor
-
- 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
- B23K26/16—Removal of by-products, e.g. particles or vapours produced during treatment of a workpiece
-
- 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
- B23K26/18—Working by laser beam, e.g. welding, cutting or boring using absorbing layers on the workpiece, e.g. for marking or protecting purposes
-
- 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
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/006—Vehicles
-
- 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
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/18—Sheet panels
- B23K2101/185—Tailored blanks
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Laser Beam Processing (AREA)
Abstract
The invention discloses a method for decreasing welding fume of high-strength steel laser welding. The method includes the steps: firstly, parallelly fixing two high-strength steel plates A and B onto a fixture base by a fixture and controlling the gap between the two high-strength steel plates within 0.2mm; secondly, placing the fixture base, the fixture and the two high-strength steel plates to be welded in an open container and placing the open container on a laser welding worktable; thirdly, injecting water into the open container, exactly submerging the high-strength steel plates to be welded in liquid and forming a liquid film on the surface of each high-strength steel plate; fourthly, blowing the liquid films on the periphery of a laser spot open by protective gas to perform laser welding; fifthly, moving a workpiece along with the worktable and submerging a welding seam below the liquid films. The welding fume is decreased, and fine environmental protection effect is achieved.
Description
Technical field
The present invention welds about high-strength steel laser, relates in particular to a kind of method that reduces its weld fumes for high-strength steel laser welding process.
Background technology
Along with the fast development of auto industry and improving constantly of people's demand, energy-conservation, safety, environmental protection become the topic that everybody pays close attention to, and therefore, the application of high-strength steel increases day by day, has nowadays become the widely used specific alloy of car manufactures.Along with the development of laser processing technology, its use in auto industry further promotes again the application of high strength steel.
Laser weld efficiency is high, good economy performance, and laser weld is equally also high-quality process, only has very little thermal deformation, can make material production warpage hardly, and its precision is also very outstanding.But due to the concentrated fuel factor of laser weld, in welding process, weldment produces a kind of flue dust in high-temp combustion situation, this flue dust floats and in air, human body is worked the mischief, and people suck can cause dizziness, headache, cough, uncomfortable in chest breathe hard etc. after this flue dust.Flue dust while therefore how to reduce high-strength steel laser welding, improving welding surroundings is an important topic of high-strength steel laser welding.
Summary of the invention
The object of the present invention is to provide a kind of method that reduces high-strength steel laser weldering weld fumes, by welded part is placed in to water, carry out laser weld, the operating environment while welding to improve high-strength steel laser.
The present invention is achieved by following technical solution.
A method that reduces high-strength steel laser weldering weld fumes, has following steps:
(1) by high strength steel plate A2 and high strength steel plate B9 by fixture A4 parallel with fixture B6 be fixed on clamp base 1 above, the clearance control between two high strength steel plate A2, high strength steel plate B9 is in 0.2mm; The centre position of described clamp base 1 is provided with the position of center line that gap between groove 10, two high strength steel plate A2, the high strength steel plate B9 of one perforation upper surface is placed in groove 10;
(2) above-mentioned clamp base 1 is positioned in external open containers with fixture A4, fixture B6 and high strength steel plate A2 to be welded, high strength steel plate B9, and open containers is positioned on laser beam welding workstation; Workbench can at the uniform velocity move with speed of welding at any time;
(3) open laser instrument, regulate the laser beam of laser instrument to make it to walk in advance along the gap center line of two high strength steel plates to be welded, adjust the position of open containers, make the center of LASER SPECKLE 3 and the centerline error in two high strength steel plate to be welded gaps be no more than 0.5mm;
(4) adjust the height of laser head 5, change the distance between workpiece to be welded and laser head 5, until reach predetermined defocusing amount;
(5), to filling liquid water slowly in open containers, till treating that water that liquid injects did not just have high strength steel plate to be welded, make the surface of high strength steel plate to be welded form one deck fluid film;
(6) adjust the position of protection gas jets 7, make to protect gas LASER SPECKLE 3 water around to be blown open to the regional area 8 of the protection gas that forms a circle under the prerequisite that plays the effect of protection weld seam;
(7) carry out the laser weld of high strength steel plate A2 and high strength steel plate B9 for automobile, fixed laser head 5 and protection gas jets 7, two high strength steel plates at the uniform velocity move with speed of welding with workbench.
The thickness of the fluid film of described step (5) is 1～2mm.
Described step (1) groove 10 width are 3mm, and the degree of depth is 2mm.
The present invention is simple in structure, and exquisite convenient, cost is lower, can make weld fumes that high-strength steel laser when welding produces submerge in the water on weldment surface, can greatly reduce the weld fumes of high-strength steel laser welding process for automobile, the operating environment while improving laser weld, is easy to promote.
Accompanying drawing explanation
Fig. 1 is the structural representation of high-strength steel laser welding equipment of the present invention.
Reference numeral is as follows:
The specific embodiment
Below in conjunction with accompanying drawing, the invention will be further described.
As shown in Figure 1, a kind of method that reduces high-strength steel laser weldering weld fumes of the present invention, following steps are as follows:
(1) by high strength steel plate A2 and high strength steel plate B9 by fixture A4 parallel with fixture B6 be fixed on clamp base 1 above, the clearance control between two high strength steel plate A2, high strength steel plate B9 is in 0.2mm; The centre position of described clamp base 1 is provided with the position of center line that gap between groove 10, two high strength steel plate A2, the high strength steel plate B9 of one perforation upper surface is placed in groove 10; Described 1 groove 10 width are 3mm, and the degree of depth is 2mm;
(2) above-mentioned clamp base 1 is positioned in external open containers with fixture A4, fixture B6 and high strength steel plate A2 to be welded, high strength steel plate B9, and open containers is positioned on laser beam welding workstation; Workbench can at the uniform velocity move with speed of welding at any time;
(3) open laser instrument, regulate the laser beam of laser instrument to make it to walk in advance along the gap center line of two high strength steel plates to be welded, adjust the position of open containers, make the center of LASER SPECKLE 3 and the centerline error in two high strength steel plate to be welded gaps be no more than 0.5mm;
(4) adjust the height of laser head 5, change the distance between workpiece to be welded and laser head 5, until reach predetermined defocusing amount;
(5) to filling liquid water slowly in open containers, till liquid water to be injected did not just have high strength steel plate to be welded, make the surface of high strength steel plate to be welded form one deck fluid film, the thickness of this fluid film is 1～2mm;
(6) adjust the position of protection gas jets 7, make to protect gas LASER SPECKLE 3 liquid around to be blown open to the regional area 8 of the protection gas that forms a circle under the prerequisite that plays the effect of protection weld seam;
(7) carry out the laser weld of high strength steel plate A2 and high strength steel plate B9 for automobile, fixed laser head 5 and protection gas jets 7, two high strength steel plates at the uniform velocity move with speed of welding with workbench.
The present invention is mainly used in the high-strength steel laser weldering welding of auto industry, also can be applied to the welding process of the high-strength steel laser weldering in other field.
Claims (3)
1. a method that reduces high-strength steel laser weldering weld fumes, has following steps:
(1) by high strength steel plate A(2) with high strength steel plate B(9) by fixture A(4) and with fixture B(6) parallel be fixed on clamp base (1) above, two high strength steel plate A(2), high strength steel plate B(9) between clearance control in 0.2mm; The centre position of described clamp base (1) is provided with the groove (10) of one perforation upper surface, two high strength steel plate A(2), high strength steel plate B(9) between gap be placed in the position of center line of groove (10);
(2) by above-mentioned clamp base (1) and fixture A(4), fixture B(6) and high strength steel plate A(2 to be welded), high strength steel plate B(9) be positioned in external open containers, and open containers is positioned on laser beam welding workstation; Workbench can at the uniform velocity move with speed of welding at any time;
(3) open laser instrument, regulate the laser beam of laser instrument to make it to walk in advance along the gap center line of two high strength steel plates to be welded, adjust the position of open containers, make the center of LASER SPECKLE (3) and the centerline error in two high strength steel plate to be welded gaps be no more than 0.5mm;
(4) adjust the height of laser head (5), change the distance between workpiece to be welded and laser head (5), until reach predetermined defocusing amount;
(5) to filling liquid water slowly in open containers, till liquid water to be injected did not just have high strength steel plate to be welded, make the surface of high strength steel plate to be welded form one deck fluid film;
(6) adjust the position of protection gas jets (7), make to protect gas LASER SPECKLE (3) water around to be blown open to the regional area (8) of the protection gas that forms a circle under the prerequisite that plays the effect of protection weld seam;
(7) carry out automobile high strength steel plate A(2) and high strength steel plate B(9) laser weld, fixed laser head (5) and protection gas jets (7), two high strength steel plates at the uniform velocity move with speed of welding with workbench.
2. a kind of method that reduces high-strength steel laser weldering weld fumes according to claim 1, is characterized in that, the thickness of the fluid film of described step (5) is 1～2mm.
3. a kind of method that reduces high-strength steel laser weldering weld fumes according to claim 1, is characterized in that, described step (1) groove (10) width is 3mm, and the degree of depth is 2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310513766.5A CN103551733A (en) | 2013-10-25 | 2013-10-25 | Method for decreasing welding fume of high-strength steel laser welding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310513766.5A CN103551733A (en) | 2013-10-25 | 2013-10-25 | Method for decreasing welding fume of high-strength steel laser welding |
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| Publication Number | Publication Date |
|---|---|
| CN103551733A true CN103551733A (en) | 2014-02-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310513766.5A Pending CN103551733A (en) | 2013-10-25 | 2013-10-25 | Method for decreasing welding fume of high-strength steel laser welding |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113399834A (en) * | 2021-06-24 | 2021-09-17 | 北京科技大学 | Preparation method of high-strength steel plate laser welding joint for 1000MPa and above automobiles |
Citations (6)
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|---|---|---|---|---|
| JPH07132372A (en) * | 1993-11-10 | 1995-05-23 | Hitachi Ltd | Underwater machining device |
| CN1535848A (en) * | 2003-04-04 | 2004-10-13 | 骆立强 | Environment-protecting type laser water-carrying engraving method and its equipment |
| WO2013027398A1 (en) * | 2011-08-24 | 2013-02-28 | 株式会社 東芝 | Device and method for underwater welding |
| CN202804480U (en) * | 2012-05-15 | 2013-03-20 | 廊坊西波尔钻石技术有限公司 | Flushing and immersion cooling laser cutting device |
| CN103143835A (en) * | 2013-02-27 | 2013-06-12 | 吉林大学 | Experiment device for water medium laser preparation |
| CN103286444A (en) * | 2012-02-22 | 2013-09-11 | 沈阳新松机器人自动化股份有限公司 | Laser butt welding method of silicon steel sheet |
-
2013
- 2013-10-25 CN CN201310513766.5A patent/CN103551733A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07132372A (en) * | 1993-11-10 | 1995-05-23 | Hitachi Ltd | Underwater machining device |
| CN1535848A (en) * | 2003-04-04 | 2004-10-13 | 骆立强 | Environment-protecting type laser water-carrying engraving method and its equipment |
| WO2013027398A1 (en) * | 2011-08-24 | 2013-02-28 | 株式会社 東芝 | Device and method for underwater welding |
| CN103286444A (en) * | 2012-02-22 | 2013-09-11 | 沈阳新松机器人自动化股份有限公司 | Laser butt welding method of silicon steel sheet |
| CN202804480U (en) * | 2012-05-15 | 2013-03-20 | 廊坊西波尔钻石技术有限公司 | Flushing and immersion cooling laser cutting device |
| CN103143835A (en) * | 2013-02-27 | 2013-06-12 | 吉林大学 | Experiment device for water medium laser preparation |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113399834A (en) * | 2021-06-24 | 2021-09-17 | 北京科技大学 | Preparation method of high-strength steel plate laser welding joint for 1000MPa and above automobiles |
| CN113399834B (en) * | 2021-06-24 | 2022-04-29 | 北京科技大学 | Preparation method of high-strength steel plate laser welding joint for 1000MPa and above automobiles |
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Effective date of abandoning: 20160323 |
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