CN106541209B - A kind of method and system for laser welding - Google Patents
A kind of method and system for laser welding Download PDFInfo
- Publication number
- CN106541209B CN106541209B CN201710030358.2A CN201710030358A CN106541209B CN 106541209 B CN106541209 B CN 106541209B CN 201710030358 A CN201710030358 A CN 201710030358A CN 106541209 B CN106541209 B CN 106541209B
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- welded
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- light source
- welding
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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
-
- 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
- B23K26/703—Cooling arrangements
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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 provides a kind of method for laser welding, and methods described includes：First workpiece to be welded and the second workpiece to be welded are contacted with each other, are arranged on the light direction of LASER Light Source, and first workpiece to be welded is between the LASER Light Source and the second workpiece to be welded；First workpiece to be welded and the second workpiece to be welded receive the laser of the LASER Light Source transmitting, and under the irradiation of the laser, the upper surface that second workpiece to be welded is in contact with the first workpiece to be welded melts, and both are welded together after cooling；Wherein, on the upper surface that the described second workpiece to be welded is in contact with the first workpiece to be welded, the channel design of non-solder is provided with, cooling medium is stored in the channel design, absorbs heat caused by laser welding using the cooling medium in the channel design.The present invention also provides a kind of system for laser welding, based on the method and system provided by the present invention for laser welding, can effectively absorb the caused heat in laser beam welding so that be not required to welding position from damage from laser.
Description
Technical field
The present invention relates to laser welding field, more particularly to a kind of method and system for laser welding.
Background technology
Laser welding be the laser beam by the use of high-energy-density as a kind of high-efficiency and precision welding method of thermal source, be laser
One of importance of materials processing technology application.Larger welding heat would generally be produced in laser beam welding, due to
Laser energy density during welding is larger, therefore this caused part welding heat is also bigger, if not using corresponding cooling
Technique takes away the part welding heat, then can directly affect weldquality, and the position that can other be not required to welding is caused
Unnecessary damage.
The content of the invention
In view of this, it is a primary object of the present invention to provide a kind of method and system for laser welding, profit is passed through
With the method and system provided by the present invention for laser welding, can effectively absorb caused in laser beam welding
Heat so that be not required to welding position from damage from laser.
Technical scheme is as follows：
The present invention provides a kind of method for laser welding, and methods described includes：By the first workpiece to be welded and second
Workpiece to be welded contacts with each other, and is arranged on the light direction of LASER Light Source, and first workpiece to be welded is located at the laser
Between light source and the second workpiece to be welded；First workpiece to be welded and the second workpiece to be welded receive the LASER Light Source hair
The laser penetrated, under the irradiation of the laser, upper surface that second workpiece to be welded is in contact with the first workpiece to be welded
Melting, both are welded together after cooling；Wherein, it is in contact in the described second workpiece to be welded with the first workpiece to be welded upper
On surface, the channel design of non-solder is provided with, cooling medium is stored in the channel design, using in the channel design
Cooling medium absorb laser welding caused by heat.
In such scheme, first workpiece to be welded is by the material of laser-light transparent is made, second work to be welded
Part is made up of the material for having larger absorptivity to laser.
In such scheme, the laser beam of the LASER Light Source transmitting is：Point hot spot or linear light spot or face hot spot.
In such scheme, methods described also includes：It is in contact in the second workpiece to be welded with the first workpiece to be welded upper
The position of welding is not required on surface, isolation Rotating fields are set.
In such scheme, by way of mask spraying, isolation Rotating fields are set.
In such scheme, methods described also includes：When being welded, to the first workpiece to be welded and the second work to be welded
The contact surface of part applies pressure.
The present invention also provides a kind of system for laser welding, and the system includes：LASER Light Source, the first work to be welded
Part, the second workpiece to be welded；First workpiece to be welded and the second workpiece to be welded contact with each other, and are arranged on the laser light
The light direction in source, and first workpiece to be welded is between the LASER Light Source and the second workpiece to be welded；Described
One workpiece to be welded and the second workpiece to be welded are used for the laser for receiving the LASER Light Source transmitting, in the irradiation of the laser
Under, the upper surface that second workpiece to be welded is in contact with the first workpiece to be welded melts, and both are welded together after cooling；
Wherein, on the upper surface that the described second workpiece to be welded is in contact with the first workpiece to be welded, it is provided with the passage of non-solder
Structure, the channel design are used to store cooling medium, and the cooling medium is used to absorb heat caused by laser welding.
In such scheme, first workpiece to be welded is by the material of laser-light transparent is made, second work to be welded
Part is made up of the material for having larger absorptivity to laser.
In such scheme, welding is not required on the upper surface that the second workpiece to be welded is in contact with the first workpiece to be welded
Position, it is additionally provided with isolation Rotating fields.
In such scheme, the system also includes：Clamping device；The clamping device is used for when being welded, to the
The contact surface of one workpiece to be welded and the second workpiece to be welded applies pressure.
Brief description of the drawings
Fig. 1 is the system composition structural representation one that the present invention is used for laser welding；
Fig. 2 is the schematic cross-section one of channel design between present invention workpiece to be welded；
Fig. 3 is the schematic cross-section two of channel design between present invention workpiece to be welded；
Fig. 4 is the coating procedure embodiment of the invention based on Fig. 3.
Description of reference numerals：1 is LASER Light Source, and 2 be laser, and 3 be the first workpiece to be welded, and 4 be the second workpiece to be welded,
5 be welding region, and 6 be channel design, and 7 cooling mediums, 8 material for not absorbing laser to coat, 9 be mask plate, and 10 be spray
Coating head.
Embodiment
In the embodiment of the present invention, by being set on the upper surface that the second workpiece to be welded is in contact with the first workpiece to be welded
The channel design of non-solder is put, and cooling medium is stored in the channel design, by using the cooling in the channel design
Heat caused by Absorption of Medium laser welding, enable to be not required to welding position from damage from laser.
In the embodiment of the present invention, the cooling medium can be：Gas, and/or liquid, and/or solid etc..
Below in conjunction with the accompanying drawings and specific embodiment is described in further detail to technical solution of the present invention.
The embodiment of the present invention provides a kind of method for laser welding, the described method comprises the following steps：
Step a：First workpiece to be welded and the second workpiece to be welded are contacted with each other, are arranged on the light extraction side of LASER Light Source
To, and first workpiece to be welded is between the LASER Light Source and the second workpiece to be welded；
In this step, first workpiece to be welded is by the material of laser-light transparent is made, second workpiece to be welded
It is made up of the material for having larger absorptivity to laser.
The laser beam of LASER Light Source transmitting can be：Point hot spot or linear light spot or face hot spot.
Further, the above method also includes：In the upper table that the second workpiece to be welded is in contact with the first workpiece to be welded
The position of welding is not required on face, isolation Rotating fields are set, then the first workpiece to be welded is placed on the isolation layer again.
, can be by way of mask spraying, in the described second workpiece to be welded and described the in actual application
The position of welding is not required on the upper surface that one workpiece to be welded is in contact, isolation Rotating fields are set.
Step b：First workpiece to be welded and the second workpiece to be welded receive the laser of the LASER Light Source transmitting,
Under the irradiation of the laser, the upper surface that second workpiece to be welded is in contact with the first workpiece to be welded melts, after cooling
Both are welded together；
Specifically, when being welded, methods described is also included to the first workpiece to be welded and the second workpiece to be welded
Contact surface applies pressure.
Further, on the upper surface that the described second workpiece to be welded is in contact with the first workpiece to be welded, it is provided with
The channel design of non-solder, cooling medium is stored in the channel design, utilize the cooling medium in the channel design to inhale
Receive heat caused by laser welding.
Fig. 1 is the system composition structural representation one that the present invention is used for laser welding, the transmitting of LASER Light Source described in Fig. 1
Laser is linear light spot.As shown in figure 1, the embodiment of the present invention also provides a kind of system for laser welding, the system includes：
LASER Light Source 1, the first workpiece 3 to be welded, the second workpiece 4 to be welded.
Specifically, first 3 and second workpiece 4 to be welded of workpiece to be welded contacts with each other, the laser light is arranged on
The light direction in source 1, and first workpiece 3 to be welded is between 1 and second workpiece 4 to be welded of LASER Light Source.
First 3 and second workpiece 4 to be welded of workpiece to be welded is used to receive the laser 2 that the LASER Light Source 1 is launched,
Under the irradiation of the laser 2, the upper surface that second workpiece to be welded is in contact with the first workpiece to be welded melts, cooling
Both are welded together afterwards；Wherein, on the upper surface that the described second workpiece 4 to be welded is in contact with the first workpiece 3 to be welded,
The channel design 6 of non-solder is provided with, the channel design 6 is used to store cooling medium, and the cooling medium is sharp for absorbing
Heat caused by photocoagulation.
Further, the described first workpiece 3 to be welded is by the material of laser-light transparent is made, second workpiece to be welded
4 material by having larger absorptivity to laser is made.
In the embodiment of the present invention, on the upper surface that the described second workpiece 4 to be welded is in contact with the first workpiece 3 to be welded
The position of welding is not required to, is additionally provided with isolation Rotating fields；The isolation Rotating fields can be realized by way of mask spraying.
Further, the system can also include：Clamping device；The clamping device is used for when being welded, right
The contact surface of first workpiece to be welded and the second workpiece to be welded applies pressure.
Fig. 2 is the schematic cross-section one of channel design between present invention workpiece to be welded, as shown in Fig. 2 the passage position
In the upper surface of the second workpiece to be welded, the internal reservoir of the passage has cooling medium.
Fig. 3 is the schematic cross-section two of channel design between present invention workpiece to be welded, as shown in figure 3, the passage position
In the upper surface of the second workpiece to be welded, the channel interior is coated with the material 8 for not absorbing laser.Fig. 4 is based on for the present invention
Fig. 3 coating procedure embodiment, as shown in figure 4, mask plate 9 is positioned over the second workpiece surface to be welded, spray head 10 sprays not
Absorb laser material 8, the material is deposited on by mask plate to be not intended to inside soldered raceway groove, other be soldered part by
In mask plate presence without being applied any material for not absorbing laser.
It should be noted that the section of the channel design in the present invention can be the arbitrary shape such as circular, square, the passage
Structure can be arranged to free routing according to the actual requirements.
The foregoing is only a preferred embodiment of the present invention, is not intended to limit the scope of the present invention.For
For those skilled in the art, the present invention can have various modifications and variations.Institute within the spirit and principles of the invention
Any modification, equivalent substitution and improvements done etc., should be included in the scope of the protection.
Claims (10)
- A kind of 1. method for laser welding, it is characterised in that methods described includes：First workpiece to be welded and the second workpiece to be welded are contacted with each other, are arranged on the light direction of LASER Light Source, and it is described First workpiece to be welded is between the LASER Light Source and the second workpiece to be welded；First workpiece to be welded and the second workpiece to be welded receive the laser of the LASER Light Source transmitting, in the laser Under irradiation, the upper surface that second workpiece to be welded is in contact with the first workpiece to be welded melts, and both are welded to after cooling Together；Wherein, on the upper surface that the described second workpiece to be welded is in contact with the first workpiece to be welded, it is provided with non-solder Channel design, cooling medium is stored in the channel design, utilize the cooling medium in the channel design to absorb Laser Welding Connect caused heat.
- 2. according to the method for claim 1, it is characterised in that first workpiece to be welded is by the material to laser-light transparent It is made, second workpiece to be welded is made up of the material for having larger absorptivity to laser.
- 3. according to the method for claim 1, it is characterised in that the laser beam of LASER Light Source transmitting is：Point hot spot, Or linear light spot or face hot spot.
- 4. according to the method for claim 1, it is characterised in that methods described also includes：In the second workpiece to be welded and The position of welding is not required on the upper surface that one workpiece to be welded is in contact, isolation Rotating fields are set.
- 5. according to the method for claim 4, it is characterised in that by way of mask spraying, isolation Rotating fields are set.
- 6. according to the method described in any one of claim 1 to 5, it is characterised in that methods described also includes：Welded When, pressure is applied to the contact surface of the first workpiece to be welded and the second workpiece to be welded.
- 7. a kind of system for laser welding, it is characterised in that the system includes：LASER Light Source, the first workpiece to be welded, Second workpiece to be welded；First workpiece to be welded and the second workpiece to be welded contact with each other, and are arranged on the LASER Light Source Light direction, and first workpiece to be welded is between the LASER Light Source and the second workpiece to be welded；First workpiece to be welded and the second workpiece to be welded are used for the laser for receiving the LASER Light Source transmitting, swash described Under the irradiation of light, the upper surface that second workpiece to be welded is in contact with the first workpiece to be welded melts, both welderings after cooling It is connected to together；Wherein, on the upper surface that the described second workpiece to be welded is in contact with the first workpiece to be welded, it is provided with non-weldering The channel design connect, the channel design are used to store cooling medium, and the cooling medium is used to produce when absorbing laser welding Heat.
- 8. system according to claim 7, it is characterised in that first workpiece to be welded is by the material to laser-light transparent It is made, second workpiece to be welded is made up of the material for having larger absorptivity to laser.
- 9. system according to claim 7, it is characterised in that connect in the second workpiece to be welded with the first workpiece to be welded The position of welding is not required on tactile upper surface, is additionally provided with isolation Rotating fields.
- 10. according to the system described in any one of claim 7 to 9, it is characterised in that the system also includes：Clamping device；Institute State clamping device to be used for when being welded, pressure is applied to the contact surface of the first workpiece to be welded and the second workpiece to be welded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710030358.2A CN106541209B (en) | 2017-01-17 | 2017-01-17 | A kind of method and system for laser welding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710030358.2A CN106541209B (en) | 2017-01-17 | 2017-01-17 | A kind of method and system for laser welding |
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| Publication Number | Publication Date |
|---|---|
| CN106541209A CN106541209A (en) | 2017-03-29 |
| CN106541209B true CN106541209B (en) | 2018-02-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710030358.2A Active CN106541209B (en) | 2017-01-17 | 2017-01-17 | A kind of method and system for laser welding |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3395547B1 (en) * | 2017-04-28 | 2020-02-12 | Leister Technologies AG | Laser joining method and laser joining system for welding workpieces |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101676060A (en) * | 2008-09-19 | 2010-03-24 | 湖北中航精机科技股份有限公司 | Method for welding plate material of seat of vehicle by laser |
| CN206393049U (en) * | 2017-01-17 | 2017-08-11 | 镭蒙（苏州）微光学科技有限公司 | A kind of system for laser welding |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4678749B2 (en) * | 2002-04-01 | 2011-04-27 | 新日本製鐵株式会社 | Laser welding method for high strength steel sheet |
| JP2007111926A (en) * | 2005-10-19 | 2007-05-10 | Toyota Motor Corp | Method and apparatus for laser beam welding of thermoplastic resin member |
| JP5260402B2 (en) * | 2009-04-30 | 2013-08-14 | 三菱重工業株式会社 | Plate-like body manufacturing method, plate-like body, gas turbine combustor, and gas turbine |
| JP2016132156A (en) * | 2015-01-19 | 2016-07-25 | オムロン株式会社 | Joined structure and method for producing joined structure |
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- 2017-01-17 CN CN201710030358.2A patent/CN106541209B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101676060A (en) * | 2008-09-19 | 2010-03-24 | 湖北中航精机科技股份有限公司 | Method for welding plate material of seat of vehicle by laser |
| CN206393049U (en) * | 2017-01-17 | 2017-08-11 | 镭蒙（苏州）微光学科技有限公司 | A kind of system for laser welding |
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| CN106541209A (en) | 2017-03-29 |
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Effective date of registration: 20190910 Address after: 710077, No. 86, No. 56, Xi'an hi tech Zone, Shaanxi, China Patentee after: FOCUSLIGHT TECHNOLOGIES INC. Address before: The river Wuzhong Economic Development Zone Suzhou Street Wuzhong road in Suzhou city of Jiangsu Province in 215104 2888, building 6, room 515 D513 Patentee before: Laser technology (Suzhou) Co., Ltd. |
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Effective date of registration: 20200628 Address after: Room 611, main office building, No. 118, Longxing Road, Haining Economic Development Zone, Haining City, Jiaxing City, Zhejiang Province Patentee after: Juguang (Haining) photoelectric Co., Ltd Address before: 710077, No. 86, No. 56, Xi'an hi tech Zone, Shaanxi, China Patentee before: Focuslight Technologies Inc. |