CN103753020A - Laser repair welding process for Zn-Al alloy - Google Patents
Laser repair welding process for Zn-Al alloy Download PDFInfo
- Publication number
- CN103753020A CN103753020A CN201410021322.4A CN201410021322A CN103753020A CN 103753020 A CN103753020 A CN 103753020A CN 201410021322 A CN201410021322 A CN 201410021322A CN 103753020 A CN103753020 A CN 103753020A
- Authority
- CN
- China
- Prior art keywords
- laser
- alloy
- welding
- weld
- weld tabs
- 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
- B23K26/34—Laser welding for purposes other than joining
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Laser Beam Processing (AREA)
- Arc Welding In General (AREA)
Abstract
The invention relates to a welding process for Zn-Al alloy, in particular to a laser repair welding process for Zn-Al alloy. Zn-Al alloy which needs to be treated by laser repair welding is taken, and a welding lug is placed on a portion, which needs to be treated by laser repair welding, of the Zn-Al alloy; laser welding is performed after parameters of a laser are adjusted; the welding lug is cut from alloy of which the material is the same with that of the Zn-Al alloy; and in a laser welding process, the edge of the welding lug is molten by laser at first, so that the welding lug is fixed on a substrate, a laser spot is aligned to the center of the welding lug to melt the welding lug, and the molten area is spirally diffused to the edge of the welding lug from the center of the welding lug until the welding lug is molten completely. Welded joints are smooth and continuous; the welding lug is molten completely; and the average microhardness of a repair welding area is higher than that of the substrate. The laser repair welding process for the Zn-Al alloy has the advantages of input heat is low, a heat affected zone is small, melting width is small, stress and deformation are low, welding speed is high, color shading does not exist, and the like. The overall performance of the Al-Zn alloy can be obviously improved.
Description
Technical field
The present invention relates to a kind of welding procedure of Zn-Al alloy, specifically a kind of laser welding technique of Zn-Al alloy.
Background technology
Alumin(i)um zinc alloy has advantages of good serviceability, processing characteristics and cheap cost, but also there is excellent friction and wear behavior and good damping performance, the scope of application very extensively, and normal material as an alternative, for example industrial conventional alumin(i)um zinc alloy replaces copper alloy to manufacture Zn-Al alloy bearing shell, reduce production costs, improve combination property.
Although alumin(i)um zinc alloy has plurality of advantages, but when adopting casting method to manufacture alumin(i)um zinc alloy parts, often there will be casting shrinking hole or micro-pore because production technology is former thereby cause, and these defects are to be just found after the processing of alumin(i)um zinc alloy accessory size puts in place mostly, if can its defect be repaired by the method for welding, can greatly reduce production costs, save time and resource, but due to alumin(i)um zinc alloy fusing point and evaporation point low, composition after repair welding simultaneously, performance and color and matrix there are differences, at present also do not have good method to carry out repair welding to make up the defect of above-mentioned alumin(i)um zinc alloy parts to it.
Summary of the invention
In order to solve the problems of the technologies described above, the invention provides a kind of laser welding technique that can effectively make up the Zn-Al alloy of alumin(i)um zinc alloy parts defect.
The present invention solves the problems of the technologies described above adopted technical scheme to be: a kind of laser welding technique of Zn-Al alloy, comprise and get the Zn-Al alloy that need carry out laser welding, weld tabs is placed on to the position that Zn-Al alloy need carry out laser weld, adjust after laser parameter, start to carry out laser weld, described weld tabs is to obtain from the material alloy cutting identical with Zn-Al alloy, in laser beam welding, first with laser, make weld tabs be fixed on the position that Zn-Al alloy need carry out laser weld the edge fusing of weld tabs, afterwards laser facula being aimed to weld tabs center melts, and from weld tabs center, be diffused into gradually in the shape of a spiral the edge of weld tabs, melt completely to weld tabs.
In above-mentioned technique, weld tabs is being placed on before Zn-Al alloy need carry out the position of laser weld, grinding process is carried out at the position that first need carry out laser weld to Zn-Al alloy, cleans afterwards, and weld tabs is cleaned with acetone soln with acetone soln.
The present invention's laser instrument used can buy on market; for example existing model is HY-V1 type 400W pulsed Nd:YAG laser instrument; in laser beam welding; adopt nitrogen as protective gas; flow of nitrogen gas channel has two, coaxially protects amasthenic lens for one with laser beam, and flow velocity is 1.2L/min; the duck eye protection Laser Welding molten bath that the diameter of another protective gas by proper alignment is 0.3mm, flow velocity is 1.75L/min.
In laser beam welding, the parameter of laser instrument is: defocusing amount is 190mm light, pulsewidth 0.5ms, laser pulse frequency 6.0Hz, bonding power 210～220W, laser scanning speed 100mm/min, sweep radius R=1mm, the scanning number of turns 2.
Beneficial effect: the defect that the laser welding technique of a kind of Zn-Al alloy of the present invention exists Zn-Al alloy is carried out repair welding, can obtain with matrix color distortion smaller, weld seam and mother metal composition are even, smooth welded seam is continuous, the finished product of the complete penetration of weld tabs, and repair welding district average microhardness is higher than matrix, the remarkable advantages such as the present invention also has that input heat is low, heat affected area is little, molten width, stress and deformation is little, speed of welding is high, no color differnece problem, can significantly improve the combination property of alumin(i)um zinc alloy.
Accompanying drawing explanation
Fig. 1 is the gross imperfection of foundry goods;
Fig. 2 is the macro morphology after repair welding;
Fig. 3 is the microstructure of matrix;
The microscopic structure in Tu4Wei repair welding district.
The specific embodiment
The following describes the specific embodiment of the present invention: a kind of laser welding technique of Zn-Al alloy, comprise and get the Zn-Al alloy that need carry out laser welding, weld tabs is placed on to the position that Zn-Al alloy need carry out laser weld, adjust after laser parameter, start to carry out laser weld, it is characterized in that: described weld tabs is to obtain from the material alloy cutting identical with Zn-Al alloy, in laser beam welding, first with laser, make weld tabs be fixed on the position that Zn-Al alloy need carry out laser weld the edge fusing of weld tabs, afterwards laser facula being aimed to weld tabs center melts, and from weld tabs center, be diffused into gradually in the shape of a spiral the edge of weld tabs, melt completely to weld tabs.
Zn-Al alloy weld tabs is being placed on before need carry out the position of laser weld; grinding process is carried out at the position that first need carry out laser weld to Zn-Al alloy; with acetone soln, clean afterwards; and weld tabs is cleaned with acetone soln; in laser beam welding, adopt nitrogen as protective gas; in laser beam welding, the parameter of laser instrument is: defocusing amount is 190mm light; pulsewidth 0.5ms; laser pulse frequency 6.0Hz; bonding power 210～220W; laser scanning speed 100mm/min, sweep radius R=1mm, the scanning number of turns 2.
In actual production process, on the alumin(i)um zinc alloy sheet material of having cast, find obvious defect, as cast the shrinkage cavity of formation or micro-pore etc., if rejected region out-of-flatness, need on emery wheel, roughly grind smoothly, then substrate surface be removed to thick polishing scratch with sand papering, finally with acetone, clean up, then from the alumin(i)um zinc alloy mother metal cutting of identical component, meet the weld tabs of dimensional requirement, and clean up with acetone soln, modulated laser, selecting model is that HY-V1 type 400W pulsed Nd:YAG laser instrument (wavelength is 1.06 μ m) is implemented laser weld, the parameters such as the scanning pattern in laser cladding process, sweep speed are input in computer control system, by this system, control completing of whole cladding process, the alumin(i)um zinc alloy of need welding is placed on the workbench of laser instrument, by workbench, walk the aperture above it is aimed at laser facula, then weld tabs is placed on above the alumin(i)um zinc alloy that needs welding, adjust position, laser instrument is transferred to manual mode, on weld tabs, beat next vestige as the mark of location, then by travelling table and with laser in its fusing of edge action of weld tabs so that zinc metal sheet is fixed on above plate, finally by travelling table, make hot spot aim at the mark place of location before, can come into effect laser welding, the program editting with launch computer, by the specific works setting parameter of laser instrument, be: defocusing amount is decided to be 190mm light, pulsewidth 0.5ms, laser pulse frequency 6.0Hz, bonding power 210～220W, laser scanning speed 100mm/min, sweep radius R=1mm, the scanning number of turns 2, use nitrogen as protective gas, flow of nitrogen gas channel has two, coaxially protect amasthenic lens with laser beam for one, flow velocity is 1.2L/min, the duck eye protection Laser Welding molten bath that the diameter of another protective gas by proper alignment is 0.3mm, flow velocity is 1.75L/min, after the parameter adjustment of laser instrument, open computer program, operation laser instrument carries out laser weld.
Select routine alumin(i)um zinc alloy parts, through the present invention, its casting flaw is carried out to laser welding, its finished product is carried out to observation analysis, result is as follows, the gross imperfection of foundry goods before welding, welds later stage macro morphology figure as shown in Figure 2 through the present invention as shown in Figure 1, and visible weld tabs and matrix color distortion are smaller, weld seam continuous formation, observe the microstructure in repair welding district, as shown in Figure 4, compare with the microscopic structure of Fig. 3 matrix, can find out penetration completely of weld tabs and matrix, fusion effect is very good; The average microhardness in observation alumin(i)um zinc alloy matrix and repair welding district, alumin(i)um zinc alloy matrix place is 88.8HV, repair welding district average out to 111.2HV is higher than alumin(i)um zinc alloy matrix outline.
Claims (4)
1. the laser welding technique of a Zn-Al alloy, comprise and get the Zn-Al alloy that need carry out laser welding, weld tabs is placed on to the position that Zn-Al alloy need carry out laser weld, adjust after laser parameter, start to carry out laser weld, it is characterized in that: described weld tabs is to obtain from the material alloy cutting identical with Zn-Al alloy, in laser beam welding, first with laser, make weld tabs be fixed on the position that Zn-Al alloy need carry out laser weld the edge fusing of weld tabs, afterwards laser facula being aimed to weld tabs center melts, and from weld tabs center, be diffused into gradually in the shape of a spiral the edge of weld tabs, melt completely to weld tabs.
2. the laser welding technique of Zn-Al alloy as claimed in claim 1, it is characterized in that: weld tabs is being placed on before Zn-Al alloy need carry out the position of laser weld, grinding process is carried out at the position that first need carry out laser weld to Zn-Al alloy, with acetone soln, clean afterwards, and weld tabs is cleaned with acetone soln.
3. the laser welding technique of Zn-Al alloy as claimed in claim 1, is characterized in that: in laser beam welding, adopt nitrogen as protective gas.
4. the laser welding technique of Zn-Al alloy as claimed in claim 1, it is characterized in that: in laser beam welding, the parameter of laser instrument is: defocusing amount is 190mm light, pulsewidth 0.5ms, laser pulse frequency 6.0Hz, bonding power 210～220W, laser scanning speed 100mm/min, sweep radius R=1mm, the scanning number of turns 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410021322.4A CN103753020B (en) | 2014-01-17 | 2014-01-17 | A kind of laser welding technique of Zn-Al alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410021322.4A CN103753020B (en) | 2014-01-17 | 2014-01-17 | A kind of laser welding technique of Zn-Al alloy |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103753020A true CN103753020A (en) | 2014-04-30 |
| CN103753020B CN103753020B (en) | 2015-09-09 |
Family
ID=50520421
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410021322.4A Expired - Fee Related CN103753020B (en) | 2014-01-17 | 2014-01-17 | A kind of laser welding technique of Zn-Al alloy |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103753020B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105414904A (en) * | 2015-12-31 | 2016-03-23 | 兰州金研激光再制造技术开发有限公司 | Welding method for low-alloy ultrahigh-strength steel |
| CN109014648A (en) * | 2018-08-23 | 2018-12-18 | 哈尔滨中正焊接技术开发有限公司 | The welding structure and its reinforcement of steel-casting metal defect digging weldering groove |
| CN109226096A (en) * | 2018-08-15 | 2019-01-18 | 中车青岛四方机车车辆股份有限公司 | A kind of Al-Mg-Zn alloy workpiece surface laser cleaning process |
| CN109648198A (en) * | 2017-10-10 | 2019-04-19 | 大族激光科技产业集团股份有限公司 | A kind of method of the continuous repair welding of laser |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080199344A1 (en) * | 2007-02-20 | 2008-08-21 | Snecma Services | Method of building up an aluminum alloy part |
| CN101376971A (en) * | 2007-08-31 | 2009-03-04 | 通用电气公司 | Method of repairing nickel-based alloy articles |
| CN101575705A (en) * | 2008-05-09 | 2009-11-11 | 北京东方通快激光技术有限责任公司 | Laser cladding reconstructing and repairing process of failure crank shaft |
| CN102424971A (en) * | 2011-12-21 | 2012-04-25 | 西安铂力特激光成形技术有限公司 | Rapid laser repair method and device for defect of aluminum alloy guide blade |
| CN102658430A (en) * | 2012-05-13 | 2012-09-12 | 徐林波 | Novel laser cladding and welding repairing process of refractory material |
| CN102828180A (en) * | 2012-09-20 | 2012-12-19 | 丹阳宏图激光科技有限公司 | Laser cladding repair process for thin-wall sleeves |
| CN102941391A (en) * | 2012-08-29 | 2013-02-27 | 安徽电力股份有限公司淮南田家庵发电厂 | Sub laser instant fusion build-up welding process for damaged surface of large shaft of power station |
| CN103465062A (en) * | 2013-10-08 | 2013-12-25 | 岳阳大陆激光技术有限公司 | Tilting-type bearing bush laser repair device and laser repair method |
-
2014
- 2014-01-17 CN CN201410021322.4A patent/CN103753020B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080199344A1 (en) * | 2007-02-20 | 2008-08-21 | Snecma Services | Method of building up an aluminum alloy part |
| CN101376971A (en) * | 2007-08-31 | 2009-03-04 | 通用电气公司 | Method of repairing nickel-based alloy articles |
| CN101575705A (en) * | 2008-05-09 | 2009-11-11 | 北京东方通快激光技术有限责任公司 | Laser cladding reconstructing and repairing process of failure crank shaft |
| CN102424971A (en) * | 2011-12-21 | 2012-04-25 | 西安铂力特激光成形技术有限公司 | Rapid laser repair method and device for defect of aluminum alloy guide blade |
| CN102658430A (en) * | 2012-05-13 | 2012-09-12 | 徐林波 | Novel laser cladding and welding repairing process of refractory material |
| CN102941391A (en) * | 2012-08-29 | 2013-02-27 | 安徽电力股份有限公司淮南田家庵发电厂 | Sub laser instant fusion build-up welding process for damaged surface of large shaft of power station |
| CN102828180A (en) * | 2012-09-20 | 2012-12-19 | 丹阳宏图激光科技有限公司 | Laser cladding repair process for thin-wall sleeves |
| CN103465062A (en) * | 2013-10-08 | 2013-12-25 | 岳阳大陆激光技术有限公司 | Tilting-type bearing bush laser repair device and laser repair method |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105414904A (en) * | 2015-12-31 | 2016-03-23 | 兰州金研激光再制造技术开发有限公司 | Welding method for low-alloy ultrahigh-strength steel |
| CN105414904B (en) * | 2015-12-31 | 2020-09-11 | 兰州金研激光再制造技术开发有限公司 | Welding method of low-alloy ultrahigh-strength steel |
| CN109648198A (en) * | 2017-10-10 | 2019-04-19 | 大族激光科技产业集团股份有限公司 | A kind of method of the continuous repair welding of laser |
| CN109226096A (en) * | 2018-08-15 | 2019-01-18 | 中车青岛四方机车车辆股份有限公司 | A kind of Al-Mg-Zn alloy workpiece surface laser cleaning process |
| CN109014648A (en) * | 2018-08-23 | 2018-12-18 | 哈尔滨中正焊接技术开发有限公司 | The welding structure and its reinforcement of steel-casting metal defect digging weldering groove |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103753020B (en) | 2015-09-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP3020502B1 (en) | Laser welding method | |
| KR101974252B1 (en) | Laser weld method and weld structure | |
| CA3026330C (en) | Laser processing apparatus and method | |
| CN102642088B (en) | Laser lap welding method | |
| Li et al. | A study of narrow gap laser welding for thick plates using the multi-layer and multi-pass method | |
| CN106132886B (en) | Edge chamfer method | |
| TW202214535A (en) | Laser cutting and removal of contoured shapes from transparent substrates | |
| CN109702356A (en) | A method of laser cutting covering protection film glass | |
| CN103962734B (en) | Laser cutting fast zoom method for punching | |
| CN103753020A (en) | Laser repair welding process for Zn-Al alloy | |
| CN105598587A (en) | Method for removing coating of hot-rolled steel sheet by virtue of ultra-short pulse laser galvanometer | |
| CN106583925B (en) | A kind of method for laser welding of Progress in Automobile Galvanized Steel Sheets | |
| CN108971775B (en) | Laser drilling method and device for metal | |
| CN102189337B (en) | Laser crack-free fusion welding repair method for Ni3Al-based alloy casting | |
| CN106077951A (en) | Control the method that nickel-base alloy multilamellar wire filling laser welding beat-affected zone crack is formed | |
| CN102233481A (en) | Laser lap welding method for galvanized steel sheet | |
| WO2012132024A1 (en) | Laser welding method | |
| CN110000472A (en) | A kind of method for laser welding of power battery module aluminium alloy end plate and side plate | |
| JP6487530B2 (en) | Method for building a gas turbine engine component | |
| CN109332897A (en) | A kind of cut deal method for laser welding | |
| CN105728877A (en) | Method for repairing torsional cylinder by laser welding | |
| Victor et al. | Custom beam shaping for high-power fiber laser welding | |
| JP4983918B2 (en) | Laser processing method and wire for oil ring | |
| CN110788486A (en) | Systematic precision machining method for brittle transparent material special-shaped 3D structure | |
| Iwase et al. | Dual-focus technique for high-power Nd: YAG laser welding of aluminum alloys |
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 | ||
| CB03 | Change of inventor or designer information |
Inventor after: Wang Wenyan Inventor after: Xu Kaihui Inventor after: Huang Wenjun Inventor after: Xie Jingpei Inventor after: Shi Shiqin Inventor after: Li Jiwen Inventor after: Wang Aiqin Inventor after: Li Luoli Inventor before: Wang Wenyan Inventor before: Yuan Yasha Inventor before: Zhang Haoyin Inventor before: Xu Kaihui Inventor before: Xie Jingpei Inventor before: Wang Aihua Inventor before: Wang Aiqin Inventor before: Li Jiwen Inventor before: Li Luoli |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: WANG WENYAN YUAN YASHA ZHANG HAOYIN XU KAIHUI XIE JINGPEI WANG AIHUA WANG AIQIN LI JIWEN LI LUOLI TO: WANG WENYAN XU KAIHUI HUANG WENJUN XIE JINGPEI SHI SHIQIN LI JIWEN WANG AIQIN LI LUOLI |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150909 Termination date: 20170117 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |