CN108326420A - The arc chord angle laser welding forming method of angle seam connector - Google Patents
The arc chord angle laser welding forming method of angle seam connector Download PDFInfo
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- CN108326420A CN108326420A CN201810086773.4A CN201810086773A CN108326420A CN 108326420 A CN108326420 A CN 108326420A CN 201810086773 A CN201810086773 A CN 201810086773A CN 108326420 A CN108326420 A CN 108326420A
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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
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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
- B23K26/70—Auxiliary operations or equipment
- B23K26/702—Auxiliary equipment
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Abstract
The present invention relates to a kind of arc chord angle laser welding forming methods of angle seam connector, including：Two planks are positioned, the spacing for keeping A plates vertical each other and between the two with B plates controls within the scope of 0~0.2mm, and it is 0.1~0.5mm that the contact surface to be welded of B plates, which is located at the spacing between two plate faces of A plates and between the outside plate face of A plates,；Using laser from melting welding mode welding fabrication, wherein a diameter of 1.5~2.2mm of focal beam spot of laser beam.The present invention is by using special welding point assembly form, the space shared by suitable weld reinforcement is reserved, ensure that face of weld is more smooth and forms smooth circular arc angle seam after the completion of welding, and meets weld appearance requirement, can preferably meet weld seam arc chord angle forming requirements；Using big focal beam spot diameter laser welding procedure, it can ensure that appearance of weld meets product demand, and the later stage only needs to carry out simple polishing treatment, realizes the steady production of high quality, high efficiency, high benefit.
Description
Technical field
The invention belongs to technical field of laser welding, and in particular to a kind of arc chord angle laser welding molding side of angle seam connector
Method.
Background technology
In high-end craftwork, kitchen and bath's apparatus (including smoke machine, kitchen range, towel rack etc.), food processing, household electrical appliance etc.
Angle seam connector can largely be used in suchlike industry, and to be exactly appearance must get well for a basic demand in these industries
See, it is resistance to see, so extremely stringent to the appearance requirement of these angle seam connectors, generally require postwelding workpiece without deformation, even weld
Smooth, weld seam without collapse and without apparent reinforcement, weld heat-affected zone is small, intensity is sufficiently high.
For the angle seam connector of such high request, conventional fabrication processes are welded using argon arc welding, after then carrying out
Phase is handled, which has several inevitable critical defects：
1) for argon arc welding because heat input is big, workpiece will produce gross distortion, need the people taken time and effort in postwelding
Work is orthopedic；
2) argon arc welding heat affected area is big, and color change can occur for weld seam periphery base material, it is necessary to carry out sanding and polishing or
Pickling processes greatly increase workload；
3) argon arc welding weld reinforcement is big, it is necessary to carry out grinding process, increase to this link flood tide human cost and
Production efficiency can be dramatically reduced；
4) argon arc welding is because of the difference of operating personnel's Specialized Quality, can cause weld strength not enough, a large amount of generate defect etc.
Problem is needed to reprocess repair welding or even be scrapped, wasting manpower and material resources；
5) argon arc welding environment is more severe, there is human body compared with major injury.
And using conventional laser welding, there are also problems：
1) it since spot diameter is smaller (a diameter of 0.3mm~0.8mm of focal beam spot), is easy to form the weldering of larger depth-to-width ratio
Seam, appearance molding is not uniform enough, lines is relatively rough, and the appearance requirement of workpiece is not achieved；
2) since spot diameter is smaller, the base material that when welding melts is less, cannot complete shakedown from the weld seam molten bath of melting welding
Two plank pieces of full A, B, cause to be easy to form undercut defect.
Invention content
The present embodiments relate to a kind of arc chord angle laser welding forming methods of angle seam connector, can at least solve existing skill
The segmental defect of art.
The present embodiments relate to a kind of arc chord angle laser welding forming methods of angle seam connector, including：
Two planks are positioned, the spacing for keeping A plates vertical each other and between the two with B plates controls within the scope of 0~0.2mm, B plates
Contact surface to be welded be located at the spacing between two plate faces of A plates and between the outside plate face of A plates be 0.1~0.5mm；
Using laser from melting welding mode welding fabrication, wherein a diameter of 1.5~2.2mm of focal beam spot of laser beam.
As one of embodiment, a diameter of 1.8~2.0mm of focal beam spot of laser beam.
As one of embodiment, in welding process, 1/2 focal beam spot is controlled on A plates, in addition 1/2 focal beam spot
The space of close B plates side in A plates.
As one of embodiment, laser beam is 0~10 ° relative to the incidence angle of A plate plate faces.
As one of embodiment, the laser uses leftward welding from melting welding mode.
As one of embodiment, speed of welding is 30mm/s~50mm/s.
As one of embodiment, laser power is 1500w~2500w.
As one of embodiment, in welding process use coaxial gas nozzle blowing argon, gas pressure be 0.05MPa~
0.2MPa, gas nozzle is apart from face of weld height 3mm~10mm.
As one of embodiment, the A plate levels are placed, and the B plates are placed vertically, and the upper face of A plates is located at B plates top
Top.
As one of embodiment, the thickness of two planks is 0.7~2mm.
The embodiment of the present invention at least has the advantages that：
The present invention carries out the arc chord angle welding fabrication of angle seam connector using the laser beam of big focal beam spot diameter, and using sharp
Light realizes the welding process of the material fusing-weld seam molten bath-coagulation forming of weld seam itself from melting welding mode, has as follows without comparable
Quasi- advantage：
1) compared to traditional processing technology, big focal beam spot diameter laser thermal weld stress is efficient, and can concentrate
In welded seam area, therefore total heat input is relatively low, and weld seam does not deform substantially, can be very good to meet wanting for product
It asks；
2) compared to traditional processing technology, big focal beam spot diameter laser welding can obtain heat because heat input is concentrated
The minimum weld seam in the zone of influence, and weld joint protective device can be added, it can effectively mitigate weld seam oxidation, ensure outside weld seam
It sees；
3) compared to traditional processing technology, big focal beam spot diameter laser welding is entirely to be not required to fill from melting welding because of it
Material can save a large amount of so weld seam can be reached without reinforcement without the state collapsed by splicing form by certain connector
It polishes, polish, reprocessing repair welding work, significantly increasing production efficiency, economic benefit；
4) compared to traditional processing technology, big focal beam spot diameter laser welding may be implemented automated production, eliminate
The influence that operating personnel's Specialized Quality difference is brought, product quality can ensure outstanding stability；
5) compared to traditional processing technology, big focal beam spot diameter laser welding can be given birth in closed environment
Production, after being equipped with good dust pelletizing system, can effectively control the deterioration of working environment, and the building ring of health is brought to producers
Border；
6) relative to conventional laser welding manufacture technique, big focal beam spot diameter laser welding can obtain appearance uniform,
Weld seam smooth, without undercut can meet product quality requirement.
Based on above-mentioned big focal beam spot diameter laser welding manner, and by using special welding point erection method
(including the control etc. to plate spacing, dislocation distance), the present invention can obtain following advantageous effect：
(1) by using special welding point assembly form, the space shared by suitable weld reinforcement has been reserved, has been ensured
Face of weld is more smooth and form smooth circular arc angle seam after the completion of welding, meets weld appearance requirement, can preferably expire
Sufficient weld seam arc chord angle forming requirements；
(2) compared to existing moulding process, the arc chord angle laser welding forming method of angle seam connector provided in this embodiment
Operation is more simple, and control is more accurate；
(3) big focal beam spot diameter laser welding procedure is used, can ensure that appearance of weld meets product demand, and after
Phase only needs to carry out simple polishing treatment, realizes the steady production of high quality, high efficiency, high benefit.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
Other attached drawings are obtained according to these attached drawings.
Fig. 1-Fig. 3 is the connector erection method schematic diagram of A plates provided in an embodiment of the present invention and B plates；
Fig. 4 is laser provided in an embodiment of the present invention from the laser beam incidence angle of melting welding and the schematic diagram of welding direction；
Fig. 5 is the molding structural schematic diagram of angle seam weld provided in an embodiment of the present invention.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts all other
Embodiment shall fall within the protection scope of the present invention.
Embodiment one
Such as Fig. 1-Fig. 5, the embodiment of the present invention provides a kind of arc chord angle laser welding forming method of angle seam connector, including：
Two planks are positioned, the spacing for keeping A plates 1 vertical each other and between the two with B plates 2 controls within the scope of 0~0.2mm, B
It is 0.1~0.5mm that the contact surface to be welded of plate 2, which is located at the spacing between two plate faces of A plates 1 and between the outside plate face of A plates 1,；
Using laser from melting welding mode welding fabrication, wherein a diameter of 1.5~2.2mm of focal beam spot of laser beam.
It is apparent from ground, the spacing between above-mentioned A plates 1 and B plates 2 refers between 1 end to be welded of A plates and adjacent 2 plate face of B plates
Spacing；2 contact surface to be welded of B plates is to be located between 1 liang of plate face place plane of A plates between being located at 1 liang of plate face of A plates, correspondingly,
A wherein plate face for A plates 1 is located between the both ends of B plates 2, which is the inside plate face of A plates 1, then another plate face of A plates 1 is
For the outside plate face of the A plates 1.
In the present embodiment, the arc chord angle welding fabrication of angle seam connector is carried out using the laser beam of big focal beam spot diameter, and
The welding process of the material fusing-weld seam molten bath-coagulation forming of weld seam itself is realized from melting welding mode using laser, is had as follows
Unrivaled advantage：
1) compared to traditional processing technology, big focal beam spot diameter laser thermal weld stress is efficient, and can concentrate
In welded seam area, therefore total heat input is relatively low, and weld seam does not deform substantially, can be very good to meet wanting for product
It asks；
2) compared to traditional processing technology, big focal beam spot diameter laser welding can obtain heat because heat input is concentrated
The minimum weld seam in the zone of influence, and weld joint protective device can be added, it can effectively mitigate weld seam oxidation, ensure outside weld seam
It sees；
3) compared to traditional processing technology, big focal beam spot diameter laser welding is entirely to be not required to fill from melting welding because of it
Material can save a large amount of so weld seam can be reached without reinforcement without the state collapsed by splicing form by certain connector
It polishes, polish, reprocessing repair welding work, significantly increasing production efficiency, economic benefit；
4) compared to traditional processing technology, big focal beam spot diameter laser welding may be implemented automated production, eliminate
The influence that operating personnel's Specialized Quality difference is brought, product quality can ensure outstanding stability；
5) compared to traditional processing technology, big focal beam spot diameter laser welding can be given birth in closed environment
Production, after being equipped with good dust pelletizing system, can effectively control the deterioration of working environment, and the building ring of health is brought to producers
Border；
6) relative to conventional laser welding manufacture technique, big focal beam spot diameter laser welding can obtain appearance uniform,
Weld seam smooth, without undercut can meet product quality requirement.
It is spelled based on above-mentioned big focal beam spot diameter laser welding manner, and by using above-mentioned special welding point
Dress mode (including the control etc. to plate spacing, dislocation distance), the present embodiment can obtain following advantageous effect：
(1) by using special welding point assembly form, the space shared by suitable weld reinforcement has been reserved, has been ensured
Face of weld is more smooth and form smooth circular arc angle seam after the completion of welding, meets weld appearance requirement, can preferably expire
Sufficient weld seam arc chord angle forming requirements；
(2) compared to existing moulding process, the arc chord angle laser welding forming method of angle seam connector provided in this embodiment
Operation is more simple, and control is more accurate；
(3) big focal beam spot diameter laser welding procedure is used, can ensure that appearance of weld meets product demand, and after
Phase only needs to carry out simple polishing treatment, realizes the steady production of high quality, high efficiency, high benefit.
It is as follows to advanced optimize above-mentioned technique, to further increase weld seam effect：
As further preferably embodiment, angle seam connector mother metal thickness is 0.7~2mm, i.e., above-mentioned two plank (1 He of A plates
B plates 2) thickness be 0.7~2mm；It is stainless steel that the material of two planks, which is both preferably,.
As further preferably embodiment, such as Fig. 1-Fig. 5, the A plates 1 are horizontal positioned, and the B plates 2 are placed vertically, A
The upper face of plate 1 is located at 2 top end of B plates, is convenient for the formation of weld seam.
As further preferably embodiment, a diameter of 1.8~2.0mm of focal beam spot of laser beam, the weld seam effect of acquisition
Fruit is more preferably.
As further preferably embodiment, in the welding process, preferably the focal beam spot of about 1/2 (area) exists in order to control
On A plates 1, in addition 1/2 focal beam spot is in the space of close 2 side of B plates of A plates 1, and the weld seam of acquisition is better.
For above-mentioned laser from welding process, following technological parameter is preferably used：Laser beam is relative to 1 plate of A plates
The incidence angle in face is 0~10 °；The laser uses leftward welding, that is, welding method of advancing from melting welding mode；Speed of welding be 30mm/s~
50mm/s；Laser power is 1500w~2500w.The welding procedure, unit heat input size and unit heat input active area energy
Enough ensure the bridging capability of welding line joint and uniformly sprawling for weld seam molten bath.
It is further preferred that protective gas is used in welding process, specifically, using coaxial gas nozzle blowing argon, gas
Pressure is 0.05MPa~0.2MPa, and gas nozzle is apart from face of weld height 3mm~10mm.Wherein, preferably selection purity is
99.99% or more argon gas；The diameter of coaxial gas nozzle is within the scope of 6~10mm.Based on above-mentioned protective gas type, size and
It is blown into the control mode of weld seam, and molten bath flow stability can be effectively ensured, and obtains uniform weld appearance, while can have
Effect mitigates weld seam degree of oxidation.
Embodiment two
The embodiment of the present invention provides a kind of arc chord angle laser welding forming method of angle seam connector, the angle seam connector,
Base material material is stainless steel, and thickness 1mm, A plate 1 is horizontally disposed, and B plates 2 are vertically arranged, and is ensured in assembly between two plates between level
Spacing away from control between 0.05mm or so, 1 upper face of 2 top of B plates and A plates is 0.2mm or so；It is a diameter of using gas nozzle
The coaxial shielding gas of 8mm protects weld seam, and distance of the gas nozzle apart from weld seam plane is 5mm when welding, protective gas use purity for
99.999% Ar, protection gas are 0.1MPa in the pressure of cylinder outlet；Laser beam is relative to the incident angle of 1 plate face of A plates
4°；Welding parameter selects laser power 2000w, speed of welding 45mm/s, spot diameter 2.0mm.Using leftward welding (figure when welding
Welding direction shown in 4) it is welded, hot spot is located at 1 edge edge of A plates, and the hot spot of control about 1/2 is on 1 material of A plates, other 1/2 light
Spot is in above 2 material of B plates.After the completion of welding, appearance of weld is beautiful.
Embodiment three
The embodiment of the present invention provides a kind of arc chord angle laser welding forming method of angle seam connector, the angle seam connector,
Base material material is stainless steel, and thickness 0.7mm, A plate 1 is horizontally disposed, and B plates 2 are vertically arranged；Ensure in assembly horizontal between two plates
Spacing is 0 (i.e. the end to be welded of A plates 1 is contacted with B plates 2), and the spacing between 1 upper face of 2 top of B plates and A plates is 0.1mm left
It is right；Weld seam is protected using the coaxial shielding gas of a diameter of 6mm of gas nozzle, distance of the gas nozzle apart from weld seam plane is 3mm when welding, is protected
Shield gas uses purity for 99.999% Ar, and protection gas is 0.05MPa in the pressure of cylinder outlet；Laser beam is relative to A plates 1
The incident angle of plate face is 0；Welding parameter selects laser power 1500w, speed of welding 50mm/s, spot diameter 1.8mm.Welding
Shi Caiyong leftward weldings (welding direction shown in Fig. 4) are welded, and hot spot is located at 1 edge edge of A plates, and the hot spot of control about 1/2 is in A plates
On 1 material, in addition 1/2 hot spot is in above 2 material of B plates.After the completion of welding, appearance of weld is beautiful.
Example IV
The embodiment of the present invention provides a kind of arc chord angle laser welding forming method of angle seam connector, the angle seam connector,
Base material material is stainless steel, and thickness 2mm, A plate 1 is horizontally disposed, and B plates 2 are vertically arranged；Ensure in assembly between two plates between level
Spacing away from control between 0.2mm or so, 1 upper face of 2 top of B plates and A plates is 0.5mm or so；It is a diameter of using gas nozzle
The coaxial shielding gas of 10mm protects weld seam, and distance of the gas nozzle apart from weld seam plane is 10mm when welding, and protective gas uses purity
For 99.999% Ar, protection gas is 0.2MPa in the pressure of cylinder outlet；Incident angle of the laser beam relative to 1 plate face of A plates
It is 10 °；Welding parameter selects laser power 2500w, speed of welding 30mm/s, spot diameter 2.0mm.Leftward welding is used when welding
(welding direction shown in Fig. 4) is welded, and hot spot is located at 1 edge edge of A plates, and the hot spot of control about 1/2 is on 1 material of A plates, and in addition 1/
2 hot spots are in above 2 material of B plates.After the completion of welding, appearance of weld is beautiful.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
With within principle, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention god.
Claims (10)
1. a kind of arc chord angle laser welding forming method of angle seam connector, which is characterized in that including：
Two planks are positioned, the spacing for keeping A plates vertical each other and between the two with B plates controls within the scope of 0~0.2mm, and B plates wait for
It is 0.1~0.5mm that welding end surface, which is located at the spacing between two plate faces of A plates and between the outside plate face of A plates,；
Using laser from melting welding mode welding fabrication, wherein a diameter of 1.5~2.2mm of focal beam spot of laser beam.
2. the arc chord angle laser welding forming method of angle seam connector as described in claim 1, it is characterised in that：Laser beam gathers
Burnt spot diameter is 1.8~2.0mm.
3. the arc chord angle laser welding forming method of angle seam connector as claimed in claim 1 or 2, it is characterised in that：It welded
Cheng Zhong controls 1/2 focal beam spot on A plates, and in addition 1/2 focal beam spot is in the space of the close B plates side of A plates.
4. the arc chord angle laser welding forming method of angle seam connector as described in claim 1, it is characterised in that：Laser beam is opposite
In A plate plate faces incidence angle be 0~10 °.
5. the arc chord angle laser welding forming method of angle seam connector as described in claim 1, it is characterised in that：The laser is certainly
Melting welding mode uses leftward welding.
6. the arc chord angle laser welding forming method of angle seam connector as claimed in claim 5, it is characterised in that：Speed of welding is
30mm/s~50mm/s.
7. the arc chord angle laser welding forming method of angle seam connector as described in claim 1, it is characterised in that：Laser power is
1500w~2500w.
8. the arc chord angle laser welding forming method of angle seam connector as described in claim 1, it is characterised in that：In welding process
Using coaxial gas nozzle blowing argon, gas pressure is 0.05MPa~0.2MPa, and gas nozzle is apart from face of weld height 3mm~10mm.
9. the arc chord angle laser welding forming method of angle seam connector as described in claim 1, it is characterised in that：The A plates water
Placing flat, the B plates are placed vertically, and the upper face of A plates is located at B plate top ends.
10. the arc chord angle laser welding forming method of angle seam connector as described in claim 1, it is characterised in that：Two planks
Thickness is 0.7~2mm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810086773.4A CN108326420A (en) | 2018-01-30 | 2018-01-30 | The arc chord angle laser welding forming method of angle seam connector |
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| CN201810086773.4A CN108326420A (en) | 2018-01-30 | 2018-01-30 | The arc chord angle laser welding forming method of angle seam connector |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110936013A (en) * | 2018-09-21 | 2020-03-31 | 大族激光科技产业集团股份有限公司 | Sealing method and sealing body of kovar alloy and dissimilar metal |
| CN114850673A (en) * | 2022-06-22 | 2022-08-05 | 歌尔股份有限公司 | Stainless steel laser welding method |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110936013A (en) * | 2018-09-21 | 2020-03-31 | 大族激光科技产业集团股份有限公司 | Sealing method and sealing body of kovar alloy and dissimilar metal |
| CN110936013B (en) * | 2018-09-21 | 2021-12-10 | 大族激光科技产业集团股份有限公司 | Sealing method and sealing body of kovar alloy and dissimilar metal |
| CN114850673A (en) * | 2022-06-22 | 2022-08-05 | 歌尔股份有限公司 | Stainless steel laser welding method |
| CN114850673B (en) * | 2022-06-22 | 2024-04-09 | 歌尔股份有限公司 | Stainless steel laser welding method |
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