CN104002050A - Laser welding method and device for titanium alloy fish-lip-shaped thin-wall skin part - Google Patents
Laser welding method and device for titanium alloy fish-lip-shaped thin-wall skin part Download PDFInfo
- Publication number
- CN104002050A CN104002050A CN201410193405.1A CN201410193405A CN104002050A CN 104002050 A CN104002050 A CN 104002050A CN 201410193405 A CN201410193405 A CN 201410193405A CN 104002050 A CN104002050 A CN 104002050A
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- China
- Prior art keywords
- profiling
- mould
- leans against
- shark
- lip shape
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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
- 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
- B23K37/0426—Fixtures for other work
- B23K37/0435—Clamps
- B23K37/0443—Jigs
-
- 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
- B23K26/12—Working by laser beam, e.g. welding, cutting or boring in a special atmosphere, e.g. in an enclosure
- B23K26/123—Working by laser beam, e.g. welding, cutting or boring in a special atmosphere, e.g. in an enclosure in an atmosphere of particular gases
-
- 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
- B23K26/30—Seam welding of three-dimensional seams
-
- 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
- B23K2103/14—Titanium or alloys thereof
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mechanical Engineering (AREA)
- Plasma & Fusion (AREA)
- Arc Welding In General (AREA)
- Laser Beam Processing (AREA)
Abstract
Disclosed is a laser welding method for a titanium alloy fish-lip-shaped thin-wall skin part. According to the laser welding method, an assembly clamp and a plurality of fish-lip-shaped thin-wall components to be welded are included, the assembly clamp comprises a lower supporting plate, a supporting rod and a copying back model, the outer surface of the copying back model is correspondingly attached to the inner surface of a fish-lip-shaped thin-wall skin assembly, a vent groove is formed in the position, corresponding to each welding line, of the copying back model, the components to be welded are correspondingly buckled to the copying back model and fixed through pressing strips, and the adjacent welding lines are sequentially welded at intervals.
Description
Technical field
The invention belongs to the laser weld field of titanium alloy, specifically a kind of method for laser welding and device for titanium alloy shark's lip shape thin-walled skin part.
Background technology
Titanium alloy shark's lip shape thin-walled skin part is a kind of aircraft supplementary structure for strengthening local location rigidity, and this complex parts are difficult to integral one-step molding, needs first segmentation manufacture to be welded as entirety again.The problem that adopts traditional TIG welding method to manufacture this part maximum is exactly that post welding distortion causes greatly follow-up assembling difficulty.Therefore the present invention wishes advantage little laser welding technology post welding distortion to be applied in the manufacture of this type of part.But realize the laser weld of this part and be not easy, having some difficult problems.
First, due to thin-wall part poor rigidity, in addition complex-shaped, the welding more difficult realization in location, particularly aspect the adjustment and control in gap.And departing from of this fine welding method butt welding of Laser Welding sheet separation, hot spot and position while welding is very sensitive.Locate to ensure the relative position of each weldment so need to use suitable weld jig.
Secondly, shark's lip shape part by multi-members by many weld seams entirety that is formed by connecting.Adopt Laser Welding to fetch this processing and manufacturing process and still belong to the first time, it is blank that the planning of its welding scheme flow process still belongs to.
Summary of the invention
The object of the present invention is to provide a kind of method for laser welding and assembling jig of titanium alloy shark's lip shape thin-walled skin part, realize the object of controlling part deformation.
For achieving the above object, the present invention is achieved by the following technical solutions.
A kind of method for laser welding of titanium alloy shark's lip shape thin-walled skin part, contain an assembling jig and multistage shark's lip shape thin-wall member to be welded, it is characterized in that: 1) described assembling jig comprises lower support plate, support bar and profiling lean against mould, profiling leans against the corresponding laminating of inner surface of outer surface with the shark's lip shape thin-walled covering assembly of mould, profiling leans against the correspondence position at every weld seam on mould and has air channel, the down either side that leans against mould outer surface in profiling is provided with multiple press strips that are screwed, described profiling leans against mould and is fixed on support bar, described support bar is fixed on lower support plate, 2) described shark's lip shape thin-walled covering member correspondence snapped onto to profiling leans against on mould and fix with press strip, 3) clear up all weld seams, weld gap is adjusted within the scope of 0.1mm, 4) adopt the order of interval welding to weld successively to adjacent weld seam, until welded.
The invention has the advantages that: 1, designed a set of special assembling jig (frock), the basis of being carried out as whole laser weld flow process, weldment is fixed on the correspondence position that fixture profiling is leaned against to mould by some press strips, profiling leans against the correspondence position at every weld seam on mould and has air channel, to prevent that laser beam is molded as heat damage to leaning against.2, on the basis of above-mentioned special fixture, design concrete flow process, to realize smoothly the laser weld of titanium alloy shark's lip shape thin-walled skin part, effectively control the distortion of part.
Below in conjunction with specific embodiment, the application is described in further detail:
Brief description of the drawings
Fig. 1 is the numbering of each section of member to be welded of shark's lip shape thin-walled skin part
Fig. 2 is the numbering explanation of shark's lip shape thin-walled skin part weld seam
Fig. 3 is the signal of shark's lip shape thin-walled skin part welding process
Fig. 4 is the assembling jig structural representation of welding use
Fig. 5 is that local amplification of the assembling jig of welding use illustrated
Fig. 6 is that shark's lip shape thin-walled skin part is illustrated at assembling jig clamping
Instantiation
The TC1 separate member that weldment is 0.8mm by eight sections of thickness for the treatment of in Fig. 1 forms, and is numbered respectively A1, A2, A3, A4, B1, B2, B3, B4.The target of welding is to treat that by eight sections weldment is connected to an one-piece parts 6 by seven weld seams (a1-a2, a2-a3, a3-a4, b1-b2, b2-b3, b3-b4, a1-b1), i.e. titanium alloy shark's lip shape thin-walled skin part, and welding seam No is shown in Fig. 2.
Welding sequence flow process as shown in Figure 3.Adopt the order of interval welding to weld successively to adjacent weld seam, until complete.First by weld seam a1-a2, a3-a4, b1-b2, b3-b4,8 sections of members are welded as a whole respectively between two respectively, obtain A1-A2, A3-A4, B1-B2, tetra-sections of members of B3-B4; By weld seam a2-a3, b2-b3, four sections of members that obtained are welded as a whole respectively between two again, obtain two members of A1-A2-A3-A4 and B1-B2-B3-B4; Be finally an entirety by weld seam a1-b1 by above-mentioned two Member Weldings, obtain complete part.
Figure 4 shows that the structural representation of assembling jig, assembling jig main body leans against mould 3 by lower support plate 1, support bar 2 and profiling and forms.Lower support plate 1 is a dull and stereotyped pedestal, has multiple support bars 2 to be fixed on the correct position on lower support plate 1, and the top of support bar 2 and profiling lean against mould 3 and connect firmly.Profiling leans against the corresponding laminating of inner surface of outer surface with the shark's lip shape thin-walled covering assembly of mould 3, profiling leans against the correspondence position at every weld seam on mould 3 and has air channel 4, the down either side that leans against mould outer surface in profiling is provided with multiple press strips that are screwed 5, when clamping, realize the clamping and positioning of butt-welding fitting by press strip 5.In embodiment, profiling leans against and on mould 3, has seven air channels 4, and corresponding seven weld seams need welding, need be by weld seam just to corresponding air channel 4 when weldment is installed.In air channel, breather pipe 10 can be installed, protect for butt welded seam backside gas.Profiling leans against mould 3 bottoms and protective cover fixed head 11 is installed for fixing protector 8, realizes the gas shield in welding process by protective device 8.It should be noted that, protective device 8 is only mentioned as an allomeric function member herein, is not the main points of this patent, therefore do not do concrete introduction.
Describe pre-welding treatment process as an example of the welding process of A1-A2 example.Because the member to be welded providing has certain length in reserve in the weld edge position at two ends.Make weldment meet the requirement of laser weld so need to carry out pretreatment.First A2 is fixed to clamp in profiling and leaned against on mould, taking the air channel center line at two ends as benchmark, record the intersection of air channel intermediate cross-section and A2, obtain after the intersection of two ends, A2 is taken off, adopt mechanical means to remove the part outside two intersections, and ensure that end face is plane, roughness is within the scope of 0.02mm.The weld seam near zone of A2 is carried out to pickling and near oven dry (all want before each formal welding to carry out this operation butt welded seam, repeat no more) below, A2 member after treatment is again fixedly clamped and leans against the correspondence position on mould in profiling.Taking A2 member as benchmark, same processing is carried out in the corresponding edge of A1 member, then A1 member is fixedly clamped and leans against the correspondence position of mould in profiling.Detect the gap between A1 and A2, within ensureing to be 0.1mm scope everywhere.Again process otherwise unload A1 member edge, until meet above-mentioned requirements.
Complete after the welding of A1-A2 member, adopting uses the same method can obtain A3-A4 member.In the time carrying out the welding of a2-a3 weld seam, taking the a2-a3 edge of A1-A2 member as benchmark, same processing is carried out in the corresponding edge of A3-A4 member, after detecting gap between A1-A2 and A3-A4 and meeting gap and require, welding can obtain A1-A2-A3-A4 member.
Adopting uses the same method obtains B1-B2-B3-B4 member.Then taking the a1-b1 edge of A1-A2-A3-A4 member as benchmark, B1-B2-B3-B4 member is carried out to edge treated, reach after requirement, realize the welding of a1-b1 weld seam, obtain whole shark's lip part.
In the laser processing procedure of shark's lip part, adopt above-mentioned frock and method, each parameter is controlled to OK range as above, can obtain weldquality good, the shark's lip shape part that welding deformation is little.
Claims (3)
1. the method for laser welding of a titanium alloy shark's lip shape thin-walled covering member, contain an assembling jig and multistage shark's lip shape thin-walled components to be welded, it is characterized in that: 1) described assembling jig comprises lower support plate, support bar and profiling lean against mould, profiling leans against the corresponding laminating of inner surface of outer surface with the shark's lip shape thin-walled covering assembly of mould, profiling leans against the correspondence position at every weld seam on mould and has air channel, the down either side that leans against mould outer surface in profiling is provided with multiple press strips that are screwed, described profiling leans against mould and is fixed on support bar, described support bar is fixed on lower support plate, 2) described shark's lip shape thin-walled covering assembly correspondence snapped onto to profiling leans against on mould and fix with press strip, 3) clear up all weld seams, weld gap is adjusted within the scope of 0.1mm, 4) adopt the order of interval welding to weld successively to adjacent weld seam, until welded.
2. the method for laser welding of titanium alloy shark's lip shape thin-walled covering member as claimed in claim 1, is characterized in that described profiling leans against in the air channel of mould to be provided with breather pipe.
3. realize the assembling jig of the method for laser welding of titanium alloy shark's lip shape thin-walled covering member claimed in claim 1, it is characterized in that, described assembling jig comprises that lower support plate, support bar and profiling lean against mould, profiling leans against the corresponding laminating of inner surface of outer surface with the shark's lip shape thin-walled covering assembly of mould, profiling leans against the correspondence position at every weld seam on mould and has air channel, the down either side that leans against mould outer surface in profiling is provided with multiple press strips that are screwed, described profiling leans against mould and is fixed on support bar, and described support bar is fixed on lower support plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410193405.1A CN104002050A (en) | 2014-05-08 | 2014-05-08 | Laser welding method and device for titanium alloy fish-lip-shaped thin-wall skin part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410193405.1A CN104002050A (en) | 2014-05-08 | 2014-05-08 | Laser welding method and device for titanium alloy fish-lip-shaped thin-wall skin part |
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| CN104002050A true CN104002050A (en) | 2014-08-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410193405.1A Pending CN104002050A (en) | 2014-05-08 | 2014-05-08 | Laser welding method and device for titanium alloy fish-lip-shaped thin-wall skin part |
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Cited By (5)
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|---|---|---|---|---|
| CN104400283A (en) * | 2014-09-25 | 2015-03-11 | 北京航星机器制造有限公司 | Welding device for titanium alloy skin structural member for framework |
| CN105458506A (en) * | 2015-11-30 | 2016-04-06 | 湖北三江航天红阳机电有限公司 | Laser welding tool for thin wall complex surface cabin body and molding method |
| CN105904108A (en) * | 2016-06-08 | 2016-08-31 | 沈阳飞机工业（集团）有限公司 | Large thin plate laser cutting clamp and machining method thereof |
| CN108857068A (en) * | 2018-06-27 | 2018-11-23 | 西安飞机工业（集团）有限责任公司 | A kind of method for laser welding for aircraft air inlet leading edge thin-wall member |
| CN109465584A (en) * | 2018-11-28 | 2019-03-15 | 贵州风雷航空军械有限责任公司 | A kind of multiple skin part assembly-welding devices |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104400283A (en) * | 2014-09-25 | 2015-03-11 | 北京航星机器制造有限公司 | Welding device for titanium alloy skin structural member for framework |
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| CN105458506A (en) * | 2015-11-30 | 2016-04-06 | 湖北三江航天红阳机电有限公司 | Laser welding tool for thin wall complex surface cabin body and molding method |
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| CN108857068A (en) * | 2018-06-27 | 2018-11-23 | 西安飞机工业（集团）有限责任公司 | A kind of method for laser welding for aircraft air inlet leading edge thin-wall member |
| CN109465584A (en) * | 2018-11-28 | 2019-03-15 | 贵州风雷航空军械有限责任公司 | A kind of multiple skin part assembly-welding devices |
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Application publication date: 20140827 |