CN104588882A - Laser welding machine with inert gas protection system - Google Patents
Laser welding machine with inert gas protection system Download PDFInfo
- Publication number
- CN104588882A CN104588882A CN201410753131.7A CN201410753131A CN104588882A CN 104588882 A CN104588882 A CN 104588882A CN 201410753131 A CN201410753131 A CN 201410753131A CN 104588882 A CN104588882 A CN 104588882A
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- China
- Prior art keywords
- inert gas
- welding
- laser
- steel pipe
- protection system
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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
-
- 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
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Laser Beam Processing (AREA)
- Arc Welding In General (AREA)
Abstract
The invention provides a laser welding machine with an inert gas protection system. The laser welding machine comprises a laser welding system, an insert gas supply system and the inert gas protection system, wherein the insert gas protection system comprises a connecting mechanism, a gas adapter, a plastic pipe capable of being bent flexibly and a stainless steel pipe. One end of the stainless steel pipe is regularly round and is connected with the plastic pipe capable of being bent flexibly, the other end of the stainless steel pipe is a free end, the free end is provided with a 30-degree groove, a through hole with the diameter of 10 mm is drilled in one end of the groove, and laser beams can pass through the through hole. The insert gas supply system injects insert gas to a welding area through the stainless steel pipe of the insert gas protection system, so that laser induced plasmas formed above the welding area are removed, coupling of laser energy and a welded workpiece is improved, a welding pool is prevented from making contact with air by forming an insert gas protection area above the welding pool, and excellent protection of a weld joint is facilitated.
Description
Technical field
The present invention relates to welding processing technical field, particularly, particularly relate to a kind of laser-beam welding machine with inert gas protection system.
Background technology
Laser weld as a kind of accurate, efficiently, high energy beam welding method fast, obtain at aerospace field and apply more and more widely.The generation of laser weld can simply be summarized as such process: be first that laser is absorbed by material, produces states of matter change after material absorbing laser, and according to the difference of states of matter, laser weld is divided into thermal conductance to weld and deep penetration welding two kinds of patterns.Material just fusing during thermal conductance weldering, welding process is simple, steady, fusion penetration is little; Deep penetration welding there occurs material fusing, gasification and plasma, and has keyhole effect, and process is very complicated, but weld penetration is than large, is the main laser welding method of commercial Application.
In above-mentioned laser is deeply molten, material surface finally forms an aperture, is full of the plasma because of high-temperature steam partial ionization simultaneously, also forms the plasma cloud of certain limit above the outlet of aperture in aperture.Screen effect can be produced by reverse drag anticline and refraction to laser beam after photo plasma is formed, affect being coupled of light energy and welding work pieces, cause a large amount of light energy losses, thus affect the size of welding penetration.On the other hand, in the process of laser weld, weld seam molten bath and air haptoreaction form the intermetallic compound of fragility, greatly reduce the mechanical property of joint, some active metal such as titanium alloy, oxygen uptake from 250 °, from 400 °, inhale hydrogen, from 600 °, inhale nitrogen, after seam organization is subject to gaseous impurity pollution, cause tissue brittle, joint mechanical property worsens.
Usually the mode adopting side-blown nozzle to add holder cover at present sprays the method for inert gas; inert gas environment is formed at laser action region annex; the part expeling of realization to photo plasma and the protection of face of weld; due to the limitation of protection holder cover structure; the method that side-blown nozzle adds holder cover is only applicable to simply grow straight longitudinal seam welding, and just helpless for weld seam the method for path complexity.
Summary of the invention
For defect of the prior art; the object of this invention is to provide a kind of laser-beam welding machine with inert gas protection system; the present invention is by forming inert gas space at laser action region annex; realize pahtfinder hard 360 ° of servo-actuated gas shields, improve the mechanical property of appearance of weld pattern and joint.
According to a kind of laser-beam welding machine with inert gas protection system provided by the invention, comprise laser welding system 1 and inert gas air supply system 2, laser welding system 1 is comprised laser welding system 1 described in plumb joint 101 and is irradiated on welding work pieces 4 laser beam 102 to weld described welding work pieces 4 by plumb joint 101;
Also comprise inert gas protection system 3, wherein, described inert gas protection system 3 comprises bindiny mechanism 301, gas adapter 302, the plastic tube 303 that can flexiblely bend and stainless-steel pipe 304;
One end of described bindiny mechanism 301 is connected by screw the outer wall of described welding point 101, and the other end is that stainless steel annulus is with fixing described gas adapter 302;
The gas distribution channel 201 of described inert gas air supply system 2, gas adapter 302, can the plastic tube 303 of flexible bending, stainless-steel pipe 304 to connect successively, described can the plastic tube 303 of flexible bending for regulating described stainless-steel pipe 304 and the vertical range of described welding work pieces 4 and the horizontal range with described laser beam 102;
One end section of described stainless-steel pipe 304 is that regular circle shapes is connected with the described plastic tube 303 that can flexible bend, the other end is free end, described free end offers 30 ° of grooves, and groove one end (i.e. groove end or groove free end) is drilled with diameter is 10mm through hole passing through for described laser beam 102;
Inert gas air supply system 2 is by the stainless-steel pipe 304 of inert gas protection system 3; inert gas is sprayed to welding region; to drive away the photo plasma formed above welding region; raising light energy is coupled with welding work pieces; and avoid welding pool to contact with air by forming inert gas shielding region above welding pool, thus promote the protection of weld seam high-quality.
Preferably, the baseplane of described stainless-steel pipe 304 and described welding work pieces 4 upper surface keeping parallelism and vertical distance range are: 1 ~ 3mm; Further, described stainless-steel pipe 304 with the angular range of the vertical plane of described welding work pieces 4 is: 70 ~ 75 °.
Preferably, inert gas is the mist of argon gas, helium or argon gas and helium.
Preferably, described laser beam 102 with the horizontal range scope at described stainless-steel pipe 304 through hole center is: 0 ~ 3mm; The flow velocity of the gas of described gas distribution channel 201 is 40 ~ 50L/min.
Compared with prior art, the present invention has following beneficial effect:
Inert gas protection system of the present invention forms local inert gas air by injecting protective gas in the laser weld zone of action; both the photo plasma formed above welding region is effectively driven away; raising light energy is coupled with welding work pieces; also effective butt welded seam is protected simultaneously, improves welding joint mechanical property.
Accompanying drawing explanation
By reading the detailed description done non-limiting example with reference to the following drawings, other features, objects and advantages of the present invention will become more obvious:
Fig. 1 is the structural representation of the inert gas protection system in the embodiment of the present invention;
In figure:
1-laser welding system,
101-plumb joint,
102-laser beam,
2-inert gas air supply system,
201-gas distribution channel,
3-inert gas protection system,
301-bindiny mechanism,
302-gas adapter,
303-can the plastic conduit of flexible bending,
304-stainless-steel pipe,
4-welding work pieces.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention is described in detail.Following examples will contribute to those skilled in the art and understand the present invention further, but not limit the present invention in any form.It should be pointed out that to those skilled in the art, without departing from the inventive concept of the premise, some distortion and improvement can also be made.These all belong to protection scope of the present invention.
The invention discloses a kind of laser-beam welding machine with inert gas protection system; comprise laser welding system, inert gas air supply system, inert gas protection system; described laser welding system is produced a laser beam and is irradiated on welding work pieces by plumb joint and welds described welding work pieces; wherein, described inert gas protection system forms primarily of the stainless steel tube of the plastic bend tube that can flexiblely bend and given shape.The present invention to welding region injecting protective gas, both effectively drives away the photo plasma formed above welding region by inert gas shielding mechanism, and raising light energy is coupled with welding work pieces; Also avoid welding pool to contact with air by forming inert gas shielding region above molten bath, thus promote the protection of weld seam high-quality.
Particularly, as shown in Figure 1, described inert gas protection system comprises bindiny mechanism, gas adapter, the plastic tube that can flexiblely bend and stainless-steel pipe, wherein, inert gas protection system one by bindiny mechanism be fixed on laser head place simultaneously gas adapter is connected with the gas distribution channel of inert gas air supply system, other end is by the plastic tube connection stainless-steel pipe of flexible bending forming protective gas breather line; Described can the plastic tube of flexible bending can vertical range described in manual adjustments between stainless-steel pipe and workpiece and inclination angle.
Described bindiny mechanism is connected by screw on plumb joint; with this fixing whole inert gas protection system; described gas adapter realizes the switching of tracheae by being connected with breather line; describedly can the plastic conduit of flexible bending insert in described stainless-steel pipe; by adjustment can the plastic conduit of flexible bending to realize stainless-steel pipe lower plane substantially parallel with workpiece 4, now the vertical dip angle face angular range of described stainless-steel pipe and workpiece is: 70 ~ 75 ° of mm.
Vertical distance range between described stainless-steel pipe lower plane and workpiece is: 1 ~ 3mm.
Described stainless-steel pipe through hole center and laser beam spacing range are: 0 ~ 3mm.
The gas distribution channel flow rates of described inert gas air supply system is: 40 ~ 50L/min.
Described inert gas to be purity be 99% argon gas.
Inert gas protection system of the present invention forms inert gas space, local by injecting protective gas in the laser weld zone of action; both the photo plasma formed above welding region is effectively driven away; raising light energy is coupled with welding work pieces; also effective butt welded seam is protected simultaneously, improves welding joint mechanical property.
Above specific embodiments of the invention are described.It is to be appreciated that the present invention is not limited to above-mentioned particular implementation, those skilled in the art can make various distortion or amendment within the scope of the claims, and this does not affect flesh and blood of the present invention.
Claims (4)
1. one kind has the laser-beam welding machine of inert gas protection system, comprise laser welding system (1) and inert gas air supply system (2), laser welding system (1) comprises plumb joint (101), and laser beam (102) is irradiated on welding work pieces (4) to weld described welding work pieces (4) by plumb joint (101) by described laser welding system (1);
It is characterized in that:
Also comprise inert gas protection system (3), wherein, described inert gas protection system (3) comprises bindiny mechanism (301), gas adapter (302), the plastic tube (303) that can flexiblely bend and stainless-steel pipe (304);
One end of described bindiny mechanism (301) is connected by screw the outer wall of described welding point (101), and the other end is that stainless steel annulus is with fixing described gas adapter (302);
The gas distribution channel (201) of described inert gas air supply system (2), gas adapter (302), can the plastic tube (303) of flexible bending, stainless-steel pipe (304) to connect successively, described can the plastic tube (303) of flexible bending for regulating described stainless-steel pipe (304) and the vertical range of described welding work pieces (4) and the horizontal range with described laser beam (102);
One end section of described stainless-steel pipe (304) is that regular circle shapes is connected with the described plastic tube (303) that can flexible bend, the other end is free end, described free end offers 30 ° of grooves, and it is 10mm through hole passing through for described laser beam (102) that groove one end is drilled with diameter;
Inert gas air supply system (2) is by the stainless-steel pipe (304) of inert gas protection system (3); inert gas is sprayed to welding region; to drive away the photo plasma formed above welding region; raising light energy is coupled with welding work pieces; and avoid welding pool to contact with air by forming inert gas shielding region above welding pool, thus promote the protection of weld seam high-quality.
2. the laser-beam welding machine with inert gas protection system according to claim 1, is characterized in that,
The baseplane of described stainless-steel pipe (304) and described welding work pieces (4) upper surface keeping parallelism and vertical distance range are: 1 ~ 3mm; Further, described stainless-steel pipe (304) with the angular range of the vertical plane of described welding work pieces (4) is: 70 ~ 75 °.
3. the laser-beam welding machine with inert gas protection system according to claim 1, is characterized in that, inert gas is the mist of argon gas, helium or argon gas and helium.
4. the laser-beam welding machine with inert gas protection system according to claim 1, is characterized in that, described laser beam (102) with the horizontal range scope at described stainless-steel pipe (304) through hole center is: 0 ~ 3mm; The flow velocity of the gas of described gas distribution channel (201) is 40 ~ 50L/min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410753131.7A CN104588882B (en) | 2014-12-09 | 2014-12-09 | laser welding machine with inert gas protection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410753131.7A CN104588882B (en) | 2014-12-09 | 2014-12-09 | laser welding machine with inert gas protection system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104588882A true CN104588882A (en) | 2015-05-06 |
| CN104588882B CN104588882B (en) | 2017-01-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410753131.7A Active CN104588882B (en) | 2014-12-09 | 2014-12-09 | laser welding machine with inert gas protection system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020052273A1 (en) * | 2018-09-11 | 2020-03-19 | 上海航天精密机械研究所 | Laser welding device |
| WO2023123735A1 (en) * | 2021-12-30 | 2023-07-06 | 苏州大学 | Laser welding method for improving strength and toughness of weld joint |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101036953A (en) * | 2006-03-15 | 2007-09-19 | 乔治洛德方法研究和开发液化空气有限公司 | Braze-welding of steel workpieces with copper wire and oxidizing gas mixture |
| CN102059455A (en) * | 2011-01-31 | 2011-05-18 | 哈尔滨工业大学 | Laser double-side synchronous welding system with skin-skeleton structure |
| CN202106141U (en) * | 2011-05-26 | 2012-01-11 | 山推工程机械股份有限公司 | Gas protecting device for laser welding |
| CN103658983A (en) * | 2013-12-09 | 2014-03-26 | 北京航星机器制造有限公司 | Laser welding titanium alloy front face non-dragging-cover gas protecting device |
-
2014
- 2014-12-09 CN CN201410753131.7A patent/CN104588882B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101036953A (en) * | 2006-03-15 | 2007-09-19 | 乔治洛德方法研究和开发液化空气有限公司 | Braze-welding of steel workpieces with copper wire and oxidizing gas mixture |
| US20070235429A1 (en) * | 2006-03-15 | 2007-10-11 | Air Liquide Industrial Us Lp | Braze-welding of steel workpieces with copper wire and oxidizing gas mixture |
| CN102059455A (en) * | 2011-01-31 | 2011-05-18 | 哈尔滨工业大学 | Laser double-side synchronous welding system with skin-skeleton structure |
| CN202106141U (en) * | 2011-05-26 | 2012-01-11 | 山推工程机械股份有限公司 | Gas protecting device for laser welding |
| CN103658983A (en) * | 2013-12-09 | 2014-03-26 | 北京航星机器制造有限公司 | Laser welding titanium alloy front face non-dragging-cover gas protecting device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020052273A1 (en) * | 2018-09-11 | 2020-03-19 | 上海航天精密机械研究所 | Laser welding device |
| WO2023123735A1 (en) * | 2021-12-30 | 2023-07-06 | 苏州大学 | Laser welding method for improving strength and toughness of weld joint |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104588882B (en) | 2017-01-11 |
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