Laser welding method, laser processing equipment and sandwich structure workpiece

A laser processing and laser welding technology, used in laser welding equipment, welding equipment, metal processing equipment and other directions, can solve the problems of unstable welding process and unsatisfactory welding effect, and achieve a wide welding range, better welding effect and stability. Best, optimize the effect of the production process

Pending Publication Date: 2022-07-15
泰德激光惠州有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] One of the main purposes of the present invention is to provide a laser welding method, which is used to solve the problems of unstable welding process and unsatisfactory welding effect caused by the workpiece absorbing the pulsed laser

Method used

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  • Laser welding method, laser processing equipment and sandwich structure workpiece
  • Laser welding method, laser processing equipment and sandwich structure workpiece
  • Laser welding method, laser processing equipment and sandwich structure workpiece

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach

[0081] As one of the implementation examples of the present application, an image of the processed workpiece is displayed through a microscope, and the image includes images of a top surface and a back surface of the processed workpiece, and the image of the top surface of the processed workpiece is visually displayed through the microscope. Solder joint diameter, solder path and back marks on the back.

[0082] On the basis of the image displayed by the above microscope, the tensile force value of the welding point of the processed workpiece after the welding process is obtained by the tensile machine, so as to judge whether the processed workpiece is the target workpiece according to the obtained tensile force value of the welding point.

[0083] Based on this example, the S4 specifically includes the following steps:

[0084] S411. Display the image of the workpiece on the microscope to determine whether the workpiece has a back mark, if not, execute S412; if so, execute S4...

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Abstract

The invention discloses a laser welding method, laser machining equipment and a sandwich structure workpiece, the laser welding method is used for the laser machining equipment, the laser machining equipment comprises a green laser machining device, and the laser welding method comprises the following steps that S1, target workpiece parameters are obtained; s2, a welding path and machining data of the laser machining device are determined according to the target workpiece parameters; s3, according to the machining data, laser beams of a green laser machining device are controlled to conduct welding treatment on the first workpiece and the second workpiece to be welded along the welding path, and the first workpiece and the second workpiece are used for obtaining a machined workpiece; wherein the first workpiece is of a sandwich structure. The problems that the welding process is unstable and the welding effect is not ideal due to the fact that a workpiece absorbs pulse laser are solved.

Description

technical field [0001] The invention relates to the technical field of laser processing, in particular to a laser welding method, laser processing equipment and a sandwich structure workpiece. Background technique [0002] Generally, in terms of electronic appliances, in order to ensure the electrical conductivity and corrosion resistance of electronic devices, copper / steel composite materials are usually used instead of traditional copper / copper alloy composite materials to synthesize the workpiece to be processed. In the case of reducing the thickness of the workpiece Improve workpiece strength. Traditional non-contact welding processes such as neodymium-doped yttrium aluminum garnet (Nd:YAG) lasers are more suitable for welding a single point or a line formed by a single point, and the actual welding efficiency is not ideal due to the large power consumption; For fiber laser welding processes such as continuous (QCW) lasers, the errors generated during the output of lase...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K26/21B23K26/70
CPCB23K26/21B23K26/702
Inventor 刘航张念袁铁青李慧韩德盛辉周学慧张凯
Owner 泰德激光惠州有限公司
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