CN108372367A - A kind of laser weld guard method of wall panel structure T connector and device - Google Patents
A kind of laser weld guard method of wall panel structure T connector and device Download PDFInfo
- Publication number
- CN108372367A CN108372367A CN201710003779.6A CN201710003779A CN108372367A CN 108372367 A CN108372367 A CN 108372367A CN 201710003779 A CN201710003779 A CN 201710003779A CN 108372367 A CN108372367 A CN 108372367A
- Authority
- CN
- China
- Prior art keywords
- wall panel
- gas
- gas shield
- shield device
- panel structure
- 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.)
- Pending
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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
-
- 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
- B23K26/70—Auxiliary operations or equipment
- B23K26/702—Auxiliary equipment
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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 present invention relates to a kind of laser weld guard method of wall panel structure T connector and devices; using gas shield device is equipped with along bead direction above two side welds, which constitutes inert gas shielding with laser coaxial protection gas phase cooperation and carries out gas shield this method.Gas shield device is made of inside and outside two parts, and outside is shell structure, is the linear copper pipe through shell inside shell structure, aperture is provided on copper pipe.The present invention can significantly improve the weldquality that dual-beam synchronizes laser welding, detachably, simple installation.
Description
Technical field
A kind of laser weld guard method of wall panel structure T connector of the present invention and device belong to welding technique neck
Domain.
Background technology
For T-type structure double light beam laser filler wire welding, since both sides molten bath interacts, side molten bath is by offside
Molten bath is affected, and the more unilateral welding of heat input increases, in addition for the lower material of this kind of thermal conductivity of titanium alloy, cooling speed
Degree is slower, and 250 DEG C or more start to absorb oxygen, nitrogen, hydrogen in air, and 600 DEG C or more absorb more strongly, and oxidizable or generation stomata lacks
It falls into, it is therefore desirable to which inert gas shielding is carried out to weld seam after molten bath and especially solidification.Currently, for this construction joint protection master
It will be in such a way that coaxial gas shielded combination weld seam drags cover or side-blown gas shielded.
Existing siding T-type structure drags the modes such as cover, side-blown gas to realize the guarantor in welding cooling procedure to weld seam using postposition
Shield drags cover locational space narrow due to the particularity of T-type structure welding, and accessibility is poor, and examination school is cumbersome before welding, less efficient, protects
It protects ineffective.And side blowing method cooling range is limited, is suitable only for the weld seam protection that thermal conductivity height cools down very fast material.
Invention content
, protection complicated for Ti Alloy Strip muscle wall panel structure T connector dual-beam laser welding weld seam gas shield device
The problems such as effect is limited, accessibility is not high, welding efficiency is relatively low when showing school, the present invention propose to be installed on the weldering on Clamp for welding
It stitches protective device and protects the matched inert gas shielding method of gas with laser coaxial, realize the relatively low material of thermal conductivity such as titanium alloy
The gas shield of T connector dual-beam laser welding weld seam, improves the forming quality of face of weld.This method is suitable for lightweight material
Material strip muscle wall panel structure double light beam laser filler wire welding, the especially welding of titanium alloy.The present invention can significantly improve dual-beam
The weldquality of synchronous laser welding, detachably, simple installation is suitable for different part dual-beam laser welding T-type structures and welds
Connect fixture.
In order to realize the present invention, present invention employs following technical solutions：
A kind of laser weld guard method of wall panel structure T connector, is equipped with above two side welds along bead direction
Gas shield device, the gas shield device constitute inert gas shielding with laser coaxial protection gas phase cooperation.
In a preferred technical solution, the gas shield device is made of inside and outside two parts, and outside is shell knot
Structure, shell structure inside are the linear copper pipe through shell, and aperture is provided on copper pipe.
In a preferred technical solution, the shell structure of the gas shield device is along the longitudinal section of bead direction
It is trapezoidal.
In a preferred technical solution, the gas shield device is fixed on Clamp for welding.
In a preferred technical solution, the laser welding is dual-beam laser welding.
The present invention also provides a kind of laser weld protective devices of wall panel structure T connector, including gas shield
Device, the gas shield device are made of inside and outside two parts, and outside is shell structure, are through shell inside shell structure
Linear copper pipe is provided with aperture on copper pipe, and the gas shield device is installed on along bead direction above two side welds.
The technique effect of the present invention is as follows：
（1）Weld seam protection effect is good, it can be achieved that titanium alloy T type joint weld seam high quality is protected；
（2）Without dragging the devices such as cover, side-blown gas, shows that school accessibility is high before weldering, improve welding efficiency, reduce labor intensity；
（3）Gas shield device is detachable, assembles, and can be installed and used in different T connector Clamp for welding, reduces fixture manufacture
Cost.
Figure of description
Fig. 1 gas shield device structural schematic diagrams of the present invention；
The laser filling wire welding weld seam protection schematic diagram of Fig. 2 present invention.
In figure：1- gas shield devices；2- shell structures；3- copper pipes；The holes 4-；5- Clamp for welding；6- weld seams.
Specific implementation mode
A kind of dual-beam of wall panel structure T connector of the present invention is swashed with reference to specific embodiment and Figure of description
Flush weld welding seam air protection method and device are further elaborated, but the protection content of the present invention is not limited to following implementation
Example.
Embodiment 1
By taking the dual-beam laser welding of titanium alloy T type joint test plate (panel) as an example.
The structure of the gas shield device of use is as shown in Figure 1.Gas shield device is made of inside and outside two parts, and outside is
Shell structure, shell structure inside are the linear copper pipe through shell, and aperture is provided on copper pipe.
The double light beam laser filler wire welding weld seam gas shield of use is as shown in Figure 2.
Gas shield device is respectively placed in above rib two side weld, make to be bolted to Clamp for welding rib press beam it
On, gas outlet and welding seam distance are about 100mm.The gas outlet width of shell structure is 5mm, and the air-flow of gas shield device is always
Cover position while welding；For through the copper pipe of gas curtain inside shell structure, gather the aperture of diameter 1mm on copper pipe top, totally three rows, hole
Spacing is 10mm, is interspersed between row and row, and row's spacing is 5mm.
After gas shielded device is installed, show that gyp makees before completing weldering, subsequent dual-beam synchronous welding, first respectively from protection gas
Curtain side is passed through inertia stomata protection gas（Ar gas or He gas）, throughput I1, t1After forming protective atmosphere after second, it is passed through coaxial
Gas, throughput I2, start two-side synchronous and weld program, complete two-side synchronous laser welding, after laser beam passes through, gas is kept to protect
Protection unit ventilation t2Second, it is then turned off protection gas, is finally completed welding.
According to various sizes of dual-beam laser welding tooling, the dismounting and assembling of protection gas curtain are completed, realizes a variety of rulers
Very little siding dual-beam laser welding weld seam protection.
When carrying out the dual-beam laser welding of titanium alloy T type joint test plate (panel), it is passed through respectively from protection gas curtain side first
Inertia stomata protects gas（Ar gas or He gas）, throughput 15L/min, after 5 seconds formed protective atmosphere after, be passed through coaxial gas, gas
Flow is 20L/min, starts two-side synchronous and welds program, completes two-side synchronous laser welding, after laser beam passes through, keeps protection gas
Curtain is ventilated 10 seconds, is then turned off protection gas, is finally completed welding.
Claims (6)
1. a kind of laser weld guard method of wall panel structure T connector, which is characterized in that along weldering above two side welds
Seam direction is equipped with gas shield device, which constitutes inert gas with laser coaxial protection gas phase cooperation and protect
Shield.
2. the laser weld guard method of wall panel structure T connector according to claim 1, which is characterized in that institute
It states gas shield device to be made of inside and outside two parts, outside is shell structure, is the linear through shell inside shell structure
Copper pipe is provided with aperture on copper pipe.
3. the laser weld guard method of wall panel structure T connector according to claim 1, which is characterized in that institute
It is trapezoidal that the shell structure of gas shield device, which is stated, along the longitudinal section of bead direction.
4. the laser weld guard method of wall panel structure T connector according to claim 1, which is characterized in that institute
Gas shield device is stated to be fixed on Clamp for welding.
5. the laser weld guard method of wall panel structure T connector according to claim 1, which is characterized in that institute
It is dual-beam laser welding to state laser welding.
6. a kind of laser weld protective device of wall panel structure T connector, including gas shield device, which is characterized in that
The gas shield device is made of inside and outside two parts, and outside is shell structure, is the straight line through shell inside shell structure
Shape copper pipe is provided with aperture on copper pipe, and the gas shield device is installed on along bead direction above two side welds.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710003779.6A CN108372367A (en) | 2017-01-04 | 2017-01-04 | A kind of laser weld guard method of wall panel structure T connector and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710003779.6A CN108372367A (en) | 2017-01-04 | 2017-01-04 | A kind of laser weld guard method of wall panel structure T connector and device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108372367A true CN108372367A (en) | 2018-08-07 |
Family
ID=63015074
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710003779.6A Pending CN108372367A (en) | 2017-01-04 | 2017-01-04 | A kind of laser weld guard method of wall panel structure T connector and device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108372367A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113478078A (en) * | 2021-07-06 | 2021-10-08 | 西安远飞航空技术发展有限公司 | Device and method for laser welding clamping and back protection of three-layer structure |
| CN113478078B (en) * | 2021-07-06 | 2024-04-26 | 西安远飞航空技术发展有限公司 | Device and method for clamping and back protection of three-layer structure laser welding |
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| CN101954541A (en) * | 2009-07-17 | 2011-01-26 | 中国科学院沈阳自动化研究所 | Back side inert gas protection method and device for laser welding |
| CN102615393A (en) * | 2012-04-19 | 2012-08-01 | 南京德邦金属装备工程股份有限公司 | Zirconium material welding protection method and special side protection covers |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113478078A (en) * | 2021-07-06 | 2021-10-08 | 西安远飞航空技术发展有限公司 | Device and method for laser welding clamping and back protection of three-layer structure |
| CN113478078B (en) * | 2021-07-06 | 2024-04-26 | 西安远飞航空技术发展有限公司 | Device and method for clamping and back protection of three-layer structure laser welding |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 100024 North East military villa, eight Li bridge, Chaoyang District, Beijing Applicant after: China Institute of Aeronautical Manufacturing Technology Address before: 100024 North East military villa, eight Li bridge, Chaoyang District, Beijing Applicant before: Beijing Aviation Manufacturing Engineering Institute of China Aviation Industry Group Company |
|
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180807 |