CN108015422A - Laser machine component and its processing technology - Google Patents

Laser machine component and its processing technology Download PDF

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Publication number
CN108015422A
CN108015422A CN201711481521.3A CN201711481521A CN108015422A CN 108015422 A CN108015422 A CN 108015422A CN 201711481521 A CN201711481521 A CN 201711481521A CN 108015422 A CN108015422 A CN 108015422A
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CN
China
Prior art keywords
weld
shaped weld
shaped
laser processing
scanner
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201711481521.3A
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Chinese (zh)
Inventor
肖磊
丁黎明
梅领亮
徐地华
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangdong Zhengye Technology Co Ltd
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Guangdong Zhengye Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Guangdong Zhengye Technology Co Ltd filed Critical Guangdong Zhengye Technology Co Ltd
Priority to CN201711481521.3A priority Critical patent/CN108015422A/en
Publication of CN108015422A publication Critical patent/CN108015422A/en
Pending legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00Working by laser beam, e.g. welding, cutting or boring
    • B23K26/20Bonding
    • B23K26/21Bonding by welding
    • B23K26/24Seam welding
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00Working by laser beam, e.g. welding, cutting or boring
    • B23K26/20Bonding
    • B23K26/21Bonding by welding
    • B23K26/24Seam welding
    • B23K26/244Overlap seam welding
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50Current conducting connections for cells or batteries
    • H01M50/531Electrode connections inside a battery casing
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries

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  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Laser Beam Processing (AREA)

Abstract

The invention discloses one kind to laser machine component, including first and second, and described first is overlapped on described second, has shaped weld on the clinch of described first, and the fusion penetration of the shaped weld is extended in described second.Shaped weld is compared with point-like weld seam of the prior art, shaped weld has larger contact area than point-like weld seam, so shaped weld has larger payload area than point-like weld seam, and therefore, the weld assembly with shaped weld is with stronger welding pulling force and peeling force.The invention also discloses a kind of welding procedure for laser machining component.

Description

Laser machine component and its processing technology
Technical field
Technical field of laser processing of the present invention, more specifically to one kind Laser Processing component and its processing technology.
Background technology
Nickel lug in existing soft-package battery is not easy upper tin, it is necessary to switching by aluminium, it is therefore desirable to first by aluminium pole Together with ear and nickel tab welding.In the prior art, the top view and sectional view point of aluminium pole ears and the weld assembly of nickel lug Not as shown in Figures 1 and 2.Nickel lug 10 is overlapped on aluminium pole ears 20.Used welding procedure is laser spot welding.Nickel pole The weld seam that 10 upper surface of ear is presented is several discrete point-like weld seams 40.It is for example attached that meat residual schematic diagram is welded after stripped power test Shown in Fig. 3 and attached drawing 4, from attached drawing 3 and attached drawing 4 as can be seen that weldering meat residual is few, the peeling force and welding pulling force of weld assembly are all It is relatively low.
Therefore, a kind of Laser Processing component how is designed, which has stronger welding pulling force and peeling force, be Those skilled in the art's critical problem urgently to be resolved hurrily.
The content of the invention
The object of the present invention is to provide one kind to laser machine component, which has stronger welding pulling force and stripping Power.
To reach above-mentioned purpose, the present invention provides following technical scheme:
One kind Laser Processing component, including first and second, described first is overlapped on described second, described There is shaped weld, the fusion penetration of the shaped weld is extended in described second on the clinch of first.
Preferably, the shaped weld prolongs on the clinch of described first along the width of described first Stretch;The shaped weld is multiple, and multiple shaped welds are arranged along the length direction of described first.
Preferably, in multiple shaped welds, from both ends to middle part, the fusion penetration of the shaped weld shortens successively.
Preferably, deepen successively along the length direction of described first, the fusion penetration of multiple shaped welds, Huo Zheyi Secondary shortening.
Preferably, the number of the shaped weld is four, and four shaped welds surround the rectangle structure of closing Weld seam.
Present invention also offers a kind of welding procedure for laser machining component, added based on the laser described in above-mentioned any one Work component, including:
S1:Described first is overlapped on described second;
S2:Start laser, make the scanner of laser in the top cabling of the clinch of described first, described in formation Shaped weld.
Preferably, " cabling " in the step S2 is the width along described first, from described first Side is moved to opposite side;
Further include S3:The scanner, and repeat step S2 are moved along the length direction of described first, is formed multiple The shaped weld.
Preferably, " moving the scanner along the length direction of described first " in the step S3 is specifically wrapped Include:According to the order from the middle shaped weld to the shaped weld at both ends, along the length side of described first Move left and right the scanner;From the middle shaped weld to the shaped weld at both ends, the weldering of the scanner Connect the input of energy increases successively.
Preferably, " moving the scanner along the length direction of described first " in the step S3 is specifically wrapped Include:Along the length direction of described first from left to right, or from right to left the scanner, the weldering of the scanner are moved Connect the input of energy increases successively.
Preferably, " cabling " in the step S2 is specially:It is described according to four cablings of rectangular linear structure " shaped weld " in step S2 is four.
It can be seen from the above technical proposal that in Laser Processing component in the present invention, have on the clinch of first There are multiple shaped welds.The fusion penetration of shaped weld is extended in second.Shaped weld and point-like weld seam phase of the prior art Than shaped weld has larger contact area than point-like weld seam, then shaped weld has larger effective than point-like weld seam Payload area, therefore, the weld assembly with shaped weld is with stronger welding pulling force and peeling force.
Brief description of the drawings
Scheme in order to illustrate the embodiments of the present invention more clearly, below will be to required described in embodiment Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the present invention, for ability For field technique personnel, without creative efforts, other attached drawings can also be obtained according to these attached drawings.
Fig. 1 is the top view of aluminium pole ears and the weld assembly of nickel lug that one specific embodiment of the prior art provides;
Fig. 2 is the front view of aluminium pole ears and the weld assembly of nickel lug in Fig. 1;
Fig. 3 is that the aluminium pole ears in Fig. 1 remain schematic diagram with welding meat after the stripped power test of weld assembly of nickel lug;
Fig. 4 is the enlarged drawing of A in Fig. 3;
Fig. 5 is the top view for the Laser Processing component that a specific embodiment of the invention provides;
Fig. 6 is the front view of the Laser Processing component in Fig. 5;
Fig. 7 is the enlarged drawing of B in Fig. 6;
Fig. 8 is weldering meat residual schematic diagram after the stripped power test of Laser Processing component in Fig. 6;
Fig. 9 is the enlarged drawing of C in Fig. 8;
Figure 10 is the top view for the Laser Processing component that a specific embodiment of the invention provides;
Figure 11 is the front view that component is laser machined in Figure 10;
Figure 12 is the top view for the Laser Processing component that a specific embodiment of the invention provides;
Figure 13 is the front view of the Laser Processing component in Figure 12.
Wherein, 10 it is nickel lug, 20 be aluminium pole ears, 30 be the clinch of nickel lug, 40 is point-like weld seam;
1 is first, 2 be second, 3 be clinch, 4 be shaped weld, 5 be rectangle structure weld seam.
Embodiment
The present invention provides one kind to laser machine component, which has stronger welding pulling force and peeling force.
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete Site preparation describes, it is clear that described embodiment is only the part of the embodiment of the present invention, instead of all the embodiments.Base In the embodiment of the present invention, those of ordinary skill in the art obtained on the premise of creative work is not made it is all its Its embodiment, belongs to the scope of protection of the invention.
In a specific embodiment of the invention, Laser Processing component includes first 1, second 2 and shaped weld 4.It is overlapped on second 2 for first 1, first 1 top for being located at second 2.The fusion penetration of shaped weld 4 extends to second In 2.In Laser Processing component in the present embodiment, there are multiple shaped welds 4 on the clinch 3 of first 1.Shaped weld 4 fusion penetration is extended in second 2.Compared with point-like weld seam of the prior art, shaped weld 4 welds shaped weld 4 than point-like Seam 40 has larger contact area, then and shaped weld 4 has larger payload area than point-like weld seam 40, therefore, Weld assembly with shaped weld 4 is with stronger welding pulling force and peeling force.
In an of the invention specific embodiment, refer to attached drawing 5, shaped weld 4 on the clinch 3 of first 1 along The width extension of first 1.Shaped weld 4 is multiple, and multiple shaped welds 4 are arranged along the length direction of first 1. Laser scanner is moved straightly on the width of first 1 from the side edge of first 1 i.e. when carrying out laser welding Opposite side.Afterwards, laser scanner is moved along the length direction of first 1, carries out the welding of second shaped weld 4.It is more The ordered arrangement of a shaped weld 4 improves the welding pulling force and peeling force of weld assembly.
In a specific embodiment of the invention, the number of shaped weld 4 is defined to be more than or equal to 3.Further, more In a shaped weld 4, from both ends to middle part, the fusion penetration of shaped weld 4 shortens successively, refer to attached drawing 6 and attached drawing 7.So set The reason for putting is the stress that the stress at the both ends for the clinch for laser machining component is greater than middle part, therefore, by positioned at both ends The fusion penetration of shaped weld 4 is set deep.In addition, the fusion penetration of shaped weld 4 is different, then 4 bottom of shaped weld Stress point would not be on same horizontal plane, and such shaped weld 4 can just bear larger welding pulling force and peeling force.Please Refer to the attached drawing 8 and attached drawing 9, Fig. 8 are weldering meat residual schematic diagram after the stripped power test of Laser Processing component in Fig. 6;Fig. 9 is figure The enlarged drawing of C in 8.After can be seen that the stripped power test of Laser Processing component in the present embodiment from attached drawing 8 and attached drawing 9 Weld that meat residual is more, and it is larger to laser machine the peeling force of component, welding pulling force is larger.
In order to make the bottom stress point of shaped weld 4 not on same horizontal plane, so as to improve what weld seam can bear Peeling force and welding pulling force, can also use following scheme:Along the length direction of first 1, the fusion penetration of shaped weld 4 is successively Deepen, or shorten successively.It refer to attached drawing 11.
In a specific embodiment of the invention, the number of shaped weld 4 is defined to 4.4 shaped welds 4 surround envelope The weld seam 5 of the rectangle structure closed, refer to attached drawing 12 and attached drawing 13.During welding, laser scanner is according to rectangular The trend of shape, sequentially completes the welding of four weld seams.
The invention also discloses a kind of welding procedure for laser machining component, based on the Laser Processing component in above-mentioned, bag Include following steps:
S1:Described first 1 is overlapped on described second 2;
S2:Start laser, the scanner of laser is formed institute in the top cabling of the clinch of described first 1 State shaped weld 4.
In a specific embodiment of the invention, " cabling " in above-mentioned middle step S2 is specially the width along first 1 Direction, opposite side is moved to from the side of first 1.The present embodiment further includes step S3:Along the length side of described first 1 To the movement scanner, and repeat step S2, form multiple shaped welds 4.
In a specific embodiment of the invention, " described sweep is moved along the length direction of described first 1 in step S3 Retouch device " specifically include:According to the order from the middle shaped weld 4 to the shaped weld 4 at both ends, along described the One 1 length direction moves left and right the scanner;From the middle shaped weld 4 to the shaped weld 4 at both ends, institute State the input of the welding energy of scanner increases successively.As shown in Figure 6, in five shaped welds 4, interposition is first welded The shaped weld 4 put, welds two shaped welds 4 adjacent with middle shaped weld 4 afterwards, finally welds two bars of outer end Shape weld seam 4.In addition, in order to reach from centre to both ends, effect that fusion penetration is deepened successively can make the welding energy of scanner Input increases successively from middle shaped weld 4 to both ends shaped weld 4.Furthermore it is also possible to by controlling speed of welding and laser Defocusing amount controls the fusion penetration of shaped weld 4.Shaped weld 4 in the present embodiment is multiple, so as to provide enough electricity Loaded area is flowed, improves the current carrying capacity of Laser Processing component.Meanwhile the fusion penetration of the shaped weld 4 in the present embodiment Length differs, and compared to the situation of the depth such as fusion penetration, this embodiment avoids the input of excessive welding heat, prevents heat from influencing Battery pole piece and battery diaphragm.
In a specific embodiment of the invention, " described sweep will be moved along the length direction of described first in step S3 Retouch device " it is particularly limited as:Along the length direction of described first 1 from left to right, or from right to left the scanner is moved, The input of the welding energy of the scanner increases successively.The fusion penetration of the multiple shaped welds 4 obtained in the present embodiment adds successively It is deep, attached drawing 11 is refer to, the weld seam of this kind of form is suitable for the larger product of unilateral load.The most deep shaped weld 4 of fusion penetration In the side that load is larger.
In a specific embodiment of the invention, " cabling " in above-mentioned middle step S2 is specially according to rectangular linear junction Four cablings of structure.Four shaped welds 4 are formed after four cablings, and four shaped welds 4 surround the rectangle knot of closing Structure.
The described above of the disclosed embodiments, enables professional and technical personnel in the field to realize or use the present invention.It is right A variety of modifications of these embodiments will be apparent for those skilled in the art, and as defined herein one As principle can realize in other embodiments without departing from the spirit or scope of the present invention.Therefore, the present invention will It will not be intended to be limited to the embodiments shown herein, and be to fit to consistent with the principles and novel features disclosed herein Most wide scope.

Claims (10)

1. one kind Laser Processing component, including first (1) and second (2), first (1) are overlapped on described second (2) on, it is characterised in that there is shaped weld (4) on the clinch (3) of first (1), the shaped weld (4) Fusion penetration is extended in second (2).
2. Laser Processing component according to claim 1, it is characterised in that the shaped weld (4) is at described first (1) extend on clinch (3) along the width of first (1);The shaped weld (4) is multiple, Duo Gesuo Shaped weld (4) is stated to arrange along the length direction of first (1).
3. Laser Processing component according to claim 2, it is characterised in that in multiple shaped welds (4), from two Hold to middle part, the fusion penetration of the shaped weld (4) shortens successively.
4. Laser Processing component according to claim 2, it is characterised in that along the length direction of first (1), The fusion penetration of multiple shaped welds (4) is deepened successively, or shortens successively.
5. Laser Processing component according to claim 1, it is characterised in that the number of the shaped weld (4) is four, Four shaped welds (4) surround the weld seam (5) of the rectangle structure of closing.
6. a kind of welding procedure for laser machining component, based on the Laser Processing component described in claim 1-5 any one, its It is characterized in that, including:
S1:First (1) is overlapped on second (2);
S2:Start laser, make the scanner of laser in the top cabling of the clinch of first (1), described in formation Shaped weld (4).
7. the welding procedure of Laser Processing component according to claim 6, it is characterised in that " walking in the step S2 Line " is the width along first (1), and opposite side is moved to from the side of first (1);
Further include S3:The scanner, and repeat step S2 are moved along the length direction of first (1), is formed multiple The shaped weld (4).
8. the welding procedure of Laser Processing the component according to claim 7, it is characterised in that " edge in the step S3 The length direction for first (1) moves the scanner " specifically include:According to the shaped weld (4) from centre To the order of the shaped weld (4) at both ends, the scanner is moved left and right along the length direction of first (1); From the middle shaped weld (4) to the shaped weld (4) at both ends, the input of the welding energy of the scanner is successively Increase.
9. the welding procedure of Laser Processing the component according to claim 7, it is characterised in that " edge in the step S3 The length direction for first (1) moves the scanner " specifically include:Along the length direction of first (1) From left to right, or from right to left the scanner is moved, the input of the welding energy of the scanner increases successively.
10. the welding procedure of Laser Processing component according to claim 6, it is characterised in that " walking in the step S2 Line " is specially:According to four cablings of rectangular linear structure, " shaped weld " in the step S2 is four.
CN201711481521.3A 2017-12-29 2017-12-29 Laser machine component and its processing technology Pending CN108015422A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110948111A (en) * 2019-12-09 2020-04-03 多氟多新能源科技有限公司 Composite welding method for tab of soft package lithium ion battery
CN111001930A (en) * 2018-10-04 2020-04-14 通用汽车环球科技运作有限责任公司 Method and apparatus for laser welding
US20200127247A1 (en) * 2018-10-18 2020-04-23 Toyota Jidosha Kabushiki Kaisha Battery and method of manufacturing same

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CN106513992A (en) * 2016-11-18 2017-03-22 中车青岛四方机车车辆股份有限公司 Process method for improving welding seam quality of lap laser welding
CN107081527A (en) * 2017-06-29 2017-08-22 大族激光科技产业集团股份有限公司 A kind of welding method of metallic sheet stock
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CA2324795A1 (en) * 2000-10-25 2002-04-25 Powerlasers Ltd. Inserted laser welded blanks
DE102010040394A1 (en) * 2010-09-08 2012-03-08 Brose Fahrzeugteile Gmbh & Co. Kommanditgesellschaft, Coburg Manufacturing method of composite used for motor vehicle seat, involves welding additive metal sheet and main metal sheet by applying laser to adhesive layer such that the weld seam of sheets and adhesive layer overlaps with each other
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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111001930A (en) * 2018-10-04 2020-04-14 通用汽车环球科技运作有限责任公司 Method and apparatus for laser welding
US20200127247A1 (en) * 2018-10-18 2020-04-23 Toyota Jidosha Kabushiki Kaisha Battery and method of manufacturing same
CN110948111A (en) * 2019-12-09 2020-04-03 多氟多新能源科技有限公司 Composite welding method for tab of soft package lithium ion battery
CN110948111B (en) * 2019-12-09 2022-02-15 多氟多新能源科技有限公司 Composite welding method for tab of soft package lithium ion battery

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