Laser welding system, laser welding control method and device and storage medium

A laser welding and laser technology, used in laser welding equipment, auxiliary devices, welding equipment, etc., can solve the problems of inflexible laser energy distribution, pores, lack of fusion, etc., to reduce energy, high-quality welding, and improve flexibility. sexual effect

Pending Publication Date: 2021-06-11
HUAHENG WELDING
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Problems solved by technology

[0006] The application provides a laser welding system, a laser welding control method, a device and a storage medium, which can solve the problem of incomplete fusion and inflexible laser energy distribution when using a double-beam laser to perform laser welding on plates of unequal thickness. Welding defects such as porosity

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  • Laser welding system, laser welding control method and device and storage medium
  • Laser welding system, laser welding control method and device and storage medium
  • Laser welding system, laser welding control method and device and storage medium

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Embodiment Construction

[0065] The specific implementation manners of the present application will be further described in detail below in conjunction with the drawings and embodiments. The following examples are used to illustrate the present application, but not to limit the scope of the present application.

[0066] First, some terms involved in this application are introduced.

[0067] Laser Scanner Welding (LSW): The laser beam is incident on the X and Y axis mirrors of the scanning galvanometer, and the angle of the mirror is controlled by the computer to achieve arbitrary deflection of the laser beam, so that the laser beam with a certain power density The laser is focused on different positions on the surface of the workpiece to realize the welding function.

[0068] Negative Defocus: The focal plane is below the workpiece for negative defocus.

[0069] The laser welding system provided by this application will be described below. Optionally, the application scenario of the laser welding s...

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Abstract

The invention relates to a laser welding system, a laser welding control method and device and a storage medium, and belongs to the technical field of welding. The laser welding system comprises a workbench and a base plate placed on the workbench, the base plate is used for placing at least a first plate and a second plate which are in butt joint with each other, and the first plate and the second plate are not equal in thickness. The laser welding system further comprises a laser welding device with a scanning function, and the laser welding device is used for carrying out laser scanning in the direction perpendicular to the welding direction in the welding process so as to weld the butt joint interface of the first plate and the second plate. The laser welding device corresponds to different laser output powers at at least two different laser scanning positions. The problems that when double-beam laser is used for conducting laser welding on plates with different thicknesses, due to the fact that laser energy distribution is not flexible enough, welding defects such as incomplete fusion and air holes exist can be solved. The laser output power of different laser scanning positions can be controlled during scanning, so that high-quality welding of butt joint of plates with different thicknesses can be realized.

Description

technical field [0001] The application relates to a laser welding system, a laser welding control method, a device and a storage medium, and belongs to the field of welding technology. Background technique [0002] Laser welding (or laser tailor welding) is a technology that uses laser heat sources to connect plates of different types, thicknesses, and sizes into a whole plate by welding. For example: welding plates of unequal thickness by laser welding. [0003] Since the thickness of two plates of unequal thickness at the butt joint is different, the energy required for melting is different. Therefore, when two plates of unequal thickness are laser welded by means of constant laser output power, there will be forming problems such as unstable welding process, unfused side of the thick plate, and weld penetration of the thin plate side. [0004] In order to control the energy distribution on the thin plate side and the thick plate side, in a typical welding method, parall...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K26/24B23K26/082B23K26/70B23K37/04
CPCB23K26/24B23K37/0408B23K26/082B23K26/702
Inventor 范霁康宋友民韦玮明晓芳郭瑞·弗拉基米尔
Owner HUAHENG WELDING
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