CN107335915A - Laser soldering device and its welding method - Google Patents
Laser soldering device and its welding method Download PDFInfo
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- CN107335915A CN107335915A CN201710439651.4A CN201710439651A CN107335915A CN 107335915 A CN107335915 A CN 107335915A CN 201710439651 A CN201710439651 A CN 201710439651A CN 107335915 A CN107335915 A CN 107335915A
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- molten bath
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- 238000003466 welding Methods 0.000 title claims abstract description 71
- 238000005476 soldering Methods 0.000 title claims abstract description 29
- 238000000034 method Methods 0.000 title claims abstract description 23
- 239000013307 optical fiber Substances 0.000 claims abstract description 18
- 230000005540 biological transmission Effects 0.000 claims abstract description 7
- 239000000155 melt Substances 0.000 claims abstract description 6
- 230000001681 protective effect Effects 0.000 claims description 9
- 239000011148 porous material Substances 0.000 claims description 7
- 238000002347 injection Methods 0.000 claims description 4
- 239000007924 injection Substances 0.000 claims description 4
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 2
- 238000005336 cracking Methods 0.000 abstract description 4
- 230000008014 freezing Effects 0.000 abstract description 4
- 238000007710 freezing Methods 0.000 abstract description 4
- 239000007789 gas Substances 0.000 description 11
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 229910052786 argon Inorganic materials 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 239000011241 protective layer Substances 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- RZVAJINKPMORJF-UHFFFAOYSA-N Acetaminophen Chemical compound CC(=O)NC1=CC=C(O)C=C1 RZVAJINKPMORJF-UHFFFAOYSA-N 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000009738 saturating Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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
- B23K26/20—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
- B23K26/20—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
- B23K26/70—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 soldering device and its welding method.During laser soldering device welding workpiece, laser soldering device is arranged to the top of workpiece surface, adjusts the distance of plumb joint and workpiece surface.The laser beam come from optical fiber transmission, soldered head are separated into shape laser beam and an annular laser beamses.Point shape laser-light beam melts workpiece forms molten bath, and annular laser beamses can expand molten bath with heated partses.Weld appearance uniformity is preferable, and the welding efficiency of laser soldering device is higher, and welding quality is higher.When plumb joint is moved by default speed of welding along default welding direction, annular laser beamses can pre- heated work pieces, can also heated molten bath again, reduce the freezing rate again in molten bath, welding stress is reduced, can prevent weld seam from cracking, the surface smooth even of weld seam.
Description
Technical field
The present invention relates to welding technology field, more particularly to a kind of laser soldering device and its welding method.
Background technology
Electrokinetic cell is one of core components of new-energy automobile such as pure electronic and oily electricity mixing.Recently as new energy
The explosive growth of automobile industry, the demand of electrokinetic cell also sharply increase, life of the following all big enterprises to electrokinetic cell
Produce the requirement of efficiency and the quality of production also more and more higher.
It is big it is multi-vendor it is general weld the sealing of electrokinetic cell using shape laser beam is put, speed of welding during welding exists mostly
Below 120mm/s.Because when speed of welding is higher, molten bath is substantially elongated, and width reduces, and weld pool stability is deteriorated, and is such as schemed
Shown in 1, the appearance consistency of weld seam 22 reduces.
The content of the invention
Based on this, it is necessary to which in view of the above-mentioned problems, it is higher to provide a kind of speed of welding, and weld appearance uniformity is preferable
Laser soldering device and its welding method.
A kind of laser soldering device, including plumb joint, the plumb joint connect with transmitting the optical fiber of laser beam, the welding
Head includes：
Housing, the housing open up through hole；
Spectroscope, it is arranged in the through hole, the spectroscope includes focus portion and transmissive portions, and the transmissive portions are arranged at
The outer peripheral edge of the focus portion；And
Focus lamp, it is arranged in the through hole, the focus lamp offers through hole along its axial direction, and the focus lamp is located at
Side of the spectroscope away from the optical fiber；
Wherein, the laser beam come from optical fiber transmission, the part laser beam form some shapes after the focus portion
Laser beam, described shape laser beam are projected outside the housing through the through hole, described in laser beam process described in remainder
After transmissive portions, then pass through the focus lamp and focus on to be formed outside the annular laser beamses injection housing.
In one of the embodiments, the plumb joint also includes collimating mirror, and the collimating mirror is arranged in the through hole,
And the collimating mirror is located at side of the spectroscope away from the focus lamp, the laser beam next from optical fiber transmission, by described
After collimating mirror, collimated laser beam is formed.
In one of the embodiments, the plumb joint also includes Light-modulating mirror, and the Light-modulating mirror is arranged in the through hole,
The Light-modulating mirror offers intercommunicating pore along its axial direction, and the Light-modulating mirror is between the spectroscope and the focus lamp, institute
State a shape laser beam to project outside the housing through the intercommunicating pore and the through hole, the laser come out through the transmissive portions
Beam focuses on to be formed outside the annular laser beamses injection housing by the regulation mirror deflection and then by the focus lamp.
A kind of welding method of the laser soldering device as described in above-mentioned any one, comprises the following steps：
The laser soldering device is arranged to the top of workpiece surface, regulation plumb joint and the workpiece surface away from
From；
Molten bath is formed by a workpiece described in shape laser-light beam melts, the institute outside the molten bath is heated by annular laser beamses
Workpiece is stated, to expand the molten bath；
The plumb joint is controlled to be moved by default speed of welding along default welding direction, described in the annular laser beamses preheating
Workpiece and the heating molten bath.
In one of the embodiments, the welder also includes protection structure, and the protection structure is arranged at described
On plumb joint, also include before described the step of forming molten bath by a workpiece described in shape laser-light beam melts：
The protection structure is to the workpiece injecting protective gas.
In one of the embodiments, the focal position of the focus portion can adjust, and the focal position of the focus lamp can
Regulation.
In one of the embodiments, the power of described shape laser beam is the 1~1.5 of the loop laser beam power
Times.
In one of the embodiments, the default speed of welding is 150mm/s-300mm/s.
In one of the embodiments, the internal diameter for the ring-shaped light spot that the annular laser beamses are formed on the workpiece, with
The difference of the diameter for the circular light spot that described shape laser beam is formed on the workpiece is 0.1~0.3mm.
In one of the embodiments, the focal plane of described shape laser beam is located at the top of the workpiece surface, described
The focal plane of annular laser beamses is located at the lower section of the workpiece surface.
Above-mentioned laser soldering device and its welding method at least have advantages below：
During laser soldering device welding workpiece, laser soldering device is arranged to the top of workpiece surface, puts shape laser beam
Melt workpiece and form molten bath, because annular laser beamses can expand molten bath with heated partses, therefore when speed of welding is higher, molten bath
Stability will not also be deteriorated.Weld appearance uniformity is preferable, and the welding efficiency of laser soldering device is higher, welding quality compared with
It is high.Simultaneously as molten bath is wider, by increasing capacitance it is possible to increase pardon of the laser beam to weld seam position deviation.Also, in plumb joint by default
Speed of welding along default welding direction move when, annular laser beamses can pre- heated work pieces, can also heated molten bath again, reduce
The freezing rate again in molten bath, reduces welding stress, can prevent weld seam from cracking, the surface smooth even of weld seam.
Brief description of the drawings
When Fig. 1 is that traditional laser soldering device speed of welding is higher, the weld seam schematic diagram of formation；
Fig. 2 is the structural representation of plumb joint in an embodiment；
A shape laser beam is separated into the schematic diagram of a shape laser beam and annular laser beamses for the plumb joint shown in Fig. 2 by Fig. 3；
Fig. 4 is the schematic diagram of circular light spot and ring-shaped light spot；
Fig. 5 is the schematic flow sheet of welding method in an embodiment；
When Fig. 6 is that laser soldering device speed of welding is higher in an embodiment, the weld seam schematic diagram of formation.
Embodiment
In order to facilitate the understanding of the purposes, features and advantages of the present invention, below in conjunction with the accompanying drawings to the present invention
Embodiment be described in detail.Many details are elaborated in the following description in order to fully understand this hair
It is bright.But the invention can be embodied in many other ways as described herein, those skilled in the art can be not
Similar improvement is done in the case of running counter to intension of the present invention, therefore the present invention is not limited to the specific embodiments disclosed below.
It should be noted that when element is referred to as " being fixed on " another element, it can be directly on another element
Or there may also be element placed in the middle.When an element is considered as " connection " another element, it can be directly connected to
To another element or it may be simultaneously present centering elements.Term as used herein " vertical ", " horizontal ", " left side ",
For illustrative purposes only, it is unique embodiment to be not offered as " right side " and similar statement.
Unless otherwise defined, all of technologies and scientific terms used here by the article is with belonging to technical field of the invention
The implication that technical staff is generally understood that is identical.Term used in the description of the invention herein is intended merely to description tool
The purpose of the embodiment of body, it is not intended that in the limitation present invention.Each technical characteristic of embodiment described above can be carried out arbitrarily
Combination, to make description succinct, it is not all possible to each technical characteristic in above-described embodiment combination be all described, so
And as long as contradiction is not present in the combination of these technical characteristics, all it is considered to be the scope of this specification record.
Refer to figure Fig. 1 and Fig. 2, the laser soldering device in an embodiment, for welding workpiece 20, be particularly used for
The sealing of electrokinetic cell is welded, welding efficiency is higher, and the appearance consistency of weld seam 22 is preferable.Specific in present embodiment, laser
Welder includes plumb joint 100 and protection structure (not shown).
Also referring to Fig. 3, plumb joint 100 can connect with transmitting the optical fiber 200 of laser beam, and laser beam passes through optical fiber 200
Transmit to plumb joint 100 from the side of plumb joint 100, and projected from the opposite side of plumb joint 100.Plumb joint 100 includes shell
Body 110, collimating mirror 120, spectroscope 130, Light-modulating mirror 140 and focus lamp 150.Housing 110 offers through hole 112, and through hole 112 is used
In receiving collimating mirror 120, spectroscope 130, Light-modulating mirror 140 and focus lamp 150.
Collimating mirror 120 is arranged in through hole 112, shape after the laser beam that collimating mirror 120 is used to project optical fiber 200 reflects
Into collimated laser beam.Specific in present embodiment, collimating mirror 120 is convex lens, and the one side of collimating mirror 120 is spheroid, optical fiber
200 are located at the focal point of collimating mirror 120.
Also referring to Fig. 4, spectroscope 130 is arranged in through hole 112, and spectroscope 130 is located at collimating mirror 120 away from light
The side of fibre 200.Spectroscope 130 includes focus portion 132 and transmissive portions 134.The surface of the side of focus portion 132 is sphere to be formed
Convex lens, the primary optical axis of focus portion 132 are located on the axle center of through hole 112.Focus portion 132 can focus on part collimated laser beam
Form point shape laser beam, the circular light spot 300 that point shape laser beam can be formed on the surface of workpiece 20.The focus of focus portion 132
Position can be adjusted, thus can point of adjustment shape laser beam as needed convergence position.Transmissive portions 134 are annular shape, and thoroughly
The consistency of thickness in portion 134 is penetrated, transmissive portions 134 are arranged at the outer peripheral edge of focus portion 132, and the collimated laser beam of another part is by saturating
It is still collimated laser beam after penetrating portion 134.
Light-modulating mirror 140 is arranged in through hole 112, and Light-modulating mirror 140 is located at side of the spectroscope 130 away from collimating mirror 120,
Spectroscope 130 is between Light-modulating mirror 140 and collimating mirror 120.Light-modulating mirror 140 offers intercommunicating pore 142 along its axial direction, and point shape swashs
Light beam can pass through intercommunicating pore 142.Light-modulating mirror 140 is used to that focus lamp will to be deflected into through the collimated laser beam after transmissive portions 134
On 150.Specific in present embodiment, Light-modulating mirror 140 is concavees lens, and Light-modulating mirror 140 offers the connection of circle along its axial direction
Hole 142.
Focus lamp 150 is arranged in through hole 112, and focus lamp 150 is located at side of the Light-modulating mirror 140 away from spectroscope 130.
Focus lamp 150 offers through hole 152, and point shape laser beam can pass through through hole 152 to project outside housing 110.The energy of focus lamp 150
Enough laser beam focus for deflecting Light-modulating mirror 140 form annular laser beamses, and annular laser beamses can be formed on the surface of workpiece 20
Ring-shaped light spot 400.In present embodiment, focus lamp 150 is annular, and the side of focus lamp 150 is sphere.Focus lamp 150
Focal position can specifically set as needed, therefore the size of the internal diameter of ring-shaped light spot 400 can be arranged as required to.
Specific light path of the laser beam in plumb joint 100 that optical fiber 200 transmits be：
The laser beam that optical fiber 200 transmits is collimated the refraction of mirror 120 and forms collimated laser beam.The center section of collimated laser beam
During by focus portion 132, it is focused to form a shape laser beam, point shape laser beam projects shell through intercommunicating pore 142 and through hole 152
Outside body 110.The collimated laser beam of another part is deflected into focus lamp 150 after transmissive portions 134, then by Light-modulating mirror 140,
Annular laser beamses are formed after the focusing of focus lamp 150 to project outside housing 110.
It is understood that in other embodiments, collimating mirror 120 and Light-modulating mirror 140, optical fiber 200 can be not provided with
Collimated laser beam can directly be transmitted.The collimated laser beam of center section focuses on by focus portion 132 forms point shape laser beam, point
Shape laser beam is projected outside housing 110 through through hole 152.The collimated laser beam of another part is after transmissive portions 134, then passes through
Focus lamp 150, which focuses on, to be formed outside annular laser beamses injection housing 110.
Protection structure is arranged on plumb joint 100.Protection structure can spray protective gas to workpiece 20, and protective gas can
To maintain to form layer protective layer on the molten bath of workpiece 20, so as to avoid workpiece 20 from being oxidized at high operating temperatures.
Please refer to fig. 5, the present invention also provides a kind of welding method.To realize the welding method, it uses above-mentioned sharp
Flush weld connection device.The welding method specifically comprises the following steps：
Step S110：Laser soldering device is arranged to the top on the surface of workpiece 20, regulation plumb joint 100 and workpiece 20
The distance on surface.
Specifically, needed before welding workpiece 20 is horizontal positioned.Laser soldering device is placed in the surface of workpiece 20 again
Top.Moreover, plumb joint 100 is set to be directed at to-be-welded region.Such as when welding the sealing of battery of 148mm*26mm sizes, it will weld
Joint 100 is directed at original position of the one end of battery seal as welding.
Also referring to Fig. 6, regulation plumb joint 100 and the distance on the surface of workpiece 20, the width in molten bath when can make welding
Spend proper.Also, by adjusting the distance of plumb joint 100 and the surface of workpiece 20, the defocus in welding process can be adjusted
Amount.Defocusing amount is exactly focus from a distance between working substance, and the influence of defocusing amount welding quality is very big, and laser welding generally needs
Want certain defocusing amount.Specific in present embodiment, the focal plane of point shape laser beam is located at the top on the surface of workpiece 20, puts shape
Laser beam is negative defocus, can suitably increase fusion penetration.The focal plane of annular laser beamses is located at the lower section on the surface of workpiece 20, and annular swashs
Light beam is positive out of focus, can be with the smooth surface of weld seam 22.
In present embodiment, before above-mentioned steps S110, the above method also includes：The surface of workpiece 20 is cleaned
Processing.It may make that weld seam 22 is cracked, gas because the surface of workpiece 20 there may be some other impurity such as dust, during welding
Hole etc..Therefore, welding effect can be improved by carrying out cleaning to the surface of workpiece 20 before welding.
Step S120：Molten bath is formed by a shape laser-light beam melts workpiece 20, outside annular laser beamses heated molten bath
Workpiece 20, to expand molten bath.
Specifically, the laser beam that optical fiber 200 transmits is separated into shape laser beam and an annular laser beamses.The work(of point shape laser beam
Rate is 1~1.5 times of loop laser beam power.In present embodiment, the general power for the laser beam that optical fiber 200 transmits is 3400w,
The power of point shape laser beam is 2260w, and the power of annular laser beamses is 1140w.The circular light spot 300 that point shape laser beam is formed adds
Heated work pieces 20, the melting of workpiece 20 is set to form molten bath.Workpiece outside the heated molten bath of ring-shaped light spot 400 that annular laser beamses are formed
20, workpiece will not be melted.But due to heat transfer, heat caused by ring-shaped light spot 400 can be with heated molten bath, so as to expand
The width in molten bath.
In present embodiment, can by adjusting the focal position of focus portion 132 and the focal position of focus lamp 150,
To adjust the internal diameter for the ring-shaped light spot 400 that annular laser beamses are formed on the surface of workpiece 20, with a shape laser beam in the table of workpiece 20
The difference L of the diameter of the circular light spot 300 formed on face.By adjusting the straight of the internal diameter of ring-shaped light spot 400 and circular light spot 300
The difference L in footpath, can control molten bath specifically expand how much.Specifically, the internal diameter of ring-shaped light spot 400 and circular light spot 300 is straight
The difference L in footpath is 0.1~0.3mm.
In present embodiment, before above-mentioned steps S120, above-mentioned welding method also includes：Protection structure is sprayed to workpiece 20
Penetrate protective gas.When workpiece 20 welds, protective gas can maintain to form layer protective layer on molten bath, so as to avoid workpiece 20
It is oxidized at high operating temperatures.Protective gas can be argon gas or nitrogen.Specifically, can be protected with control in 1 second before welding
Structure sprays protective gas, and protective gas is argon gas.
Step S130：Control plumb joint 100 is moved by default speed of welding along default welding direction, annular laser beamses preheating
Workpiece 20 and heated molten bath.
Specifically, default speed of welding can be 150mm/s-300mm/s.In present embodiment, speed of welding tool is preset
Body is 180mm/s.Plumb joint 100 during movement, annular laser beamses can the pre- part to be welded of heated work pieces 20, preheating can
Welding stress is reduced, avoids weld crack.Annular laser beamses can also reheat molten bath, extend the cool time in molten bath, reduce
The freezing rate again in molten bath, can avoid weld seam 22 from cracking.The surface of weld seam 22 is smooth after welding.
Above-mentioned laser soldering device and its welding method at least have advantages below：
During laser soldering device welding workpiece 20, laser soldering device is arranged to the top on the surface of workpiece 20, point shape swashs
Light beam melting workpiece 20 forms molten bath, when speed of welding is higher, because annular laser beamses can expand molten bath with heated partses 20,
Therefore when speed of welding is higher, the stability in molten bath will not be deteriorated.The appearance consistency of weld seam 22 is preferable, the weldering of laser soldering device
It is higher to connect speed, welding quality is higher.Simultaneously as molten bath is wider, by increasing capacitance it is possible to increase bag of the laser beam to the position deviation of weld seam 22
Capacitive.Also, annular laser beamses can pre- heated work pieces 20, can also heated molten bath again, reduce the freezing rate again in molten bath,
Welding stress is reduced, can prevent weld seam 22 from cracking, the surface smooth even of weld seam 22.
Embodiment described above only expresses the several embodiments of the present invention, and its description is more specific and detailed, but simultaneously
Can not therefore it be construed as limiting the scope of the patent.It should be pointed out that come for one of ordinary skill in the art
Say, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the protection of the present invention
Scope.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (10)
1. a kind of laser soldering device, it is characterised in that including plumb joint, the optical fiber of the plumb joint and transmission laser beam connects
Logical, the plumb joint includes：
Housing, the housing open up through hole；
Spectroscope, it is arranged in the through hole, the spectroscope includes focus portion and transmissive portions, and the transmissive portions are arranged at described
The outer peripheral edge of focus portion；And
Focus lamp, it is arranged in the through hole, the focus lamp offers through hole along its axial direction, and the focus lamp is positioned at described
Side of the spectroscope away from the optical fiber；
Wherein, the laser beam come from optical fiber transmission, the part laser beam form some shape laser after the focus portion
Beam, described shape laser beam are projected outside the housing through the through hole, and laser beam described in remainder passes through the transmission
Behind portion, then pass through the focus lamp and focus on to be formed outside the annular laser beamses injection housing.
2. laser soldering device according to claim 1, it is characterised in that the plumb joint also includes collimating mirror, described
Collimating mirror is arranged in the through hole, and the collimating mirror is located at side of the spectroscope away from the focus lamp, from the optical fiber
The laser beam that transmission comes, after the collimating mirror, form collimated laser beam.
3. laser soldering device according to claim 1, it is characterised in that the plumb joint also includes Light-modulating mirror, described
Light-modulating mirror is arranged in the through hole, and the Light-modulating mirror offers intercommunicating pore along its axial direction, and the Light-modulating mirror is positioned at described point
Between light microscopic and the focus lamp, described shape laser beam is projected outside the housing through the intercommunicating pore and the through hole,
Focus on to form annular by the regulation mirror deflection and then by the focus lamp through the laser beam that the transmissive portions come out
Laser beam is projected outside the housing.
A kind of 4. welding method of the laser soldering device as described in claims 1 to 3 any one, it is characterised in that including with
Lower step：
The laser soldering device is arranged to the top of workpiece surface, the distance of regulation plumb joint and the workpiece surface；
Molten bath is formed by a workpiece described in shape laser-light beam melts, the work outside the molten bath is heated by annular laser beamses
Part, to expand the molten bath；
The plumb joint is controlled to be moved by default speed of welding along default welding direction, the annular laser beamses preheat the workpiece
And the heating molten bath.
5. welding method according to claim 4, it is characterised in that the welder also includes protection structure, described
Protection structure is arranged on the plumb joint, before described the step of forming molten bath by a workpiece described in shape laser-light beam melts also
Including：
The protection structure is to the workpiece injecting protective gas.
6. welding method according to claim 4, it is characterised in that the focal position of the focus portion can adjust, described
The focal position of focus lamp can adjust.
7. welding method according to claim 4, it is characterised in that the power of described shape laser beam swashs for the annular
1~1.5 times of light beam power.
8. welding method according to claim 4, it is characterised in that the default speed of welding is 150mm/s-300mm/
s。
9. welding method according to claim 4, it is characterised in that what the annular laser beamses were formed on the workpiece
The internal diameter of ring-shaped light spot, the difference of the diameter of the circular light spot formed on the workpiece with described shape laser beam for 0.1~
0.3mm。
10. welding method according to claim 4, it is characterised in that the focal plane of described shape laser beam is positioned at described
The top of workpiece surface, the focal plane of the annular laser beamses are located at the lower section of the workpiece surface.
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| CN201710439651.4A CN107335915A (en) | 2017-06-12 | 2017-06-12 | Laser soldering device and its welding method |
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| CN201710439651.4A CN107335915A (en) | 2017-06-12 | 2017-06-12 | Laser soldering device and its welding method |
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| CN108453261A (en) * | 2018-06-21 | 2018-08-28 | 西安增材制造国家研究院有限公司 | A kind of device that there is the laser gain material of preheating and slow cooling function to manufacture |
| CN109663915A (en) * | 2018-12-28 | 2019-04-23 | 淮阴工学院 | A kind of laser gain material manufacture crack stopper |
| CN111037099A (en) * | 2019-12-31 | 2020-04-21 | 广东省焊接技术研究所（广东省中乌研究院） | Laser welding method and system for end faces of copper and alloy plates of copper with different thicknesses |
| CN111512491A (en) * | 2018-01-02 | 2020-08-07 | 三星Sdi株式会社 | Battery pack and method of making the same |
| CN111687532A (en) * | 2020-06-28 | 2020-09-22 | 芜湖欧宝机电有限公司 | Laser welded compressor housing and method of welding |
| CN113070573A (en) * | 2021-04-20 | 2021-07-06 | 武汉锐科光纤激光技术股份有限公司 | Laser welding method and device |
| CN113798666A (en) * | 2021-09-07 | 2021-12-17 | 武汉锐科光纤激光技术股份有限公司 | Method, device, apparatus, storage medium, and electronic device for welding material |
| CN116551176A (en) * | 2023-07-12 | 2023-08-08 | 长春理工大学 | Infrared detection window laser welding device and welding method |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61165290A (en) * | 1985-01-18 | 1986-07-25 | Matsushita Electric Ind Co Ltd | Laser beam processing device |
| JPH01143783A (en) * | 1987-11-30 | 1989-06-06 | Mitsubishi Heavy Ind Ltd | Coaxial multi-focal point type laser beam converging device |
| JPH02217187A (en) * | 1989-02-17 | 1990-08-29 | Amada Co Ltd | Laser beam machining for film coating material |
| JPH0780672A (en) * | 1993-09-10 | 1995-03-28 | Kawasaki Heavy Ind Ltd | Laser cutting method and device |
| US5728993A (en) * | 1995-08-05 | 1998-03-17 | The Boc Group Plc | Laser cutting of materials with plural beams |
| US20020088784A1 (en) * | 2000-12-13 | 2002-07-11 | Christophe Bertez | Method and plant for laser cutting with dual-flow and double-focus cutting head |
| JP2008168333A (en) * | 2007-01-15 | 2008-07-24 | Japan Unix Co Ltd | Laser soldering apparatus |
| JP2014018800A (en) * | 2012-07-12 | 2014-02-03 | Miyachi Technos Corp | Laser joining method and laser joining system |
| US20170151630A1 (en) * | 2015-11-27 | 2017-06-01 | Industrial Technology Research Institute | Device for heating to generate uniform motlen pool |
-
2017
- 2017-06-12 CN CN201710439651.4A patent/CN107335915A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61165290A (en) * | 1985-01-18 | 1986-07-25 | Matsushita Electric Ind Co Ltd | Laser beam processing device |
| JPH01143783A (en) * | 1987-11-30 | 1989-06-06 | Mitsubishi Heavy Ind Ltd | Coaxial multi-focal point type laser beam converging device |
| JPH02217187A (en) * | 1989-02-17 | 1990-08-29 | Amada Co Ltd | Laser beam machining for film coating material |
| JPH0780672A (en) * | 1993-09-10 | 1995-03-28 | Kawasaki Heavy Ind Ltd | Laser cutting method and device |
| US5728993A (en) * | 1995-08-05 | 1998-03-17 | The Boc Group Plc | Laser cutting of materials with plural beams |
| US20020088784A1 (en) * | 2000-12-13 | 2002-07-11 | Christophe Bertez | Method and plant for laser cutting with dual-flow and double-focus cutting head |
| JP2008168333A (en) * | 2007-01-15 | 2008-07-24 | Japan Unix Co Ltd | Laser soldering apparatus |
| JP2014018800A (en) * | 2012-07-12 | 2014-02-03 | Miyachi Technos Corp | Laser joining method and laser joining system |
| US20170151630A1 (en) * | 2015-11-27 | 2017-06-01 | Industrial Technology Research Institute | Device for heating to generate uniform motlen pool |
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| CN111512491A (en) * | 2018-01-02 | 2020-08-07 | 三星Sdi株式会社 | Battery pack and method of making the same |
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| CN111687532A (en) * | 2020-06-28 | 2020-09-22 | 芜湖欧宝机电有限公司 | Laser welded compressor housing and method of welding |
| CN113070573A (en) * | 2021-04-20 | 2021-07-06 | 武汉锐科光纤激光技术股份有限公司 | Laser welding method and device |
| CN113798666A (en) * | 2021-09-07 | 2021-12-17 | 武汉锐科光纤激光技术股份有限公司 | Method, device, apparatus, storage medium, and electronic device for welding material |
| CN116571886A (en) * | 2023-05-12 | 2023-08-11 | 武汉锐科光纤激光技术股份有限公司 | Laser welding device, welding control method, and welding control device |
| CN116551176A (en) * | 2023-07-12 | 2023-08-08 | 长春理工大学 | Infrared detection window laser welding device and welding method |
| CN116551176B (en) * | 2023-07-12 | 2023-09-15 | 长春理工大学 | Infrared detection window laser welding device and welding method |
| CN117564468A (en) * | 2023-11-13 | 2024-02-20 | 东北电力大学 | Targeted collaborative preheating method for pulsed laser welding of thin metal sheets |
| CN117564468B (en) * | 2023-11-13 | 2024-07-05 | 东北电力大学 | Pulse laser welding method for metal material sheet with targeting cooperative preheating |
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