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Copper sheet tailored blank laser welding method

A technology of laser tailor welding and copper sheet, applied in laser welding equipment, welding equipment, welding equipment, etc., can solve problems such as uneven heat dissipation, and achieve the effect of ensuring uniformity

Pending Publication Date: 2022-04-01
KEY & CORE TECH INNOVATION INST OF THE GREATER BAY AREA
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Based on this, an object of the present invention is to provide a method for laser tailor welding of copper sheets, which adopts a dual-beam mode of blue laser beams and infrared laser beams to carry out tailor welding of copper sheets, which can suppress welding spatter, overcome the problem of uneven heat dissipation, and meet the requirements of Requirements for Laser Tailored Welding of Thin Copper Sheets with Hollow Patterns

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  • Copper sheet tailored blank laser welding method
  • Copper sheet tailored blank laser welding method
  • Copper sheet tailored blank laser welding method

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Embodiment Construction

[0026] The following description serves to disclose the present invention to enable those skilled in the art to carry out the present invention. The preferred embodiments described below are only examples, and those skilled in the art can devise other obvious variations. The basic principles of the present invention defined in the following description can be applied to other embodiments, variations, improvements, equivalents and other technical solutions without departing from the spirit and scope of the present invention.

[0027] Those skilled in the art should understand that, in the disclosure of the present invention, the terms "vertical", "transverse", "upper", "lower", "front", "rear", "left", "right", The orientations or positional relationships indicated by "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationship shown in the drawings, which are only for the convenience of describing the present inventi...

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Abstract

The invention relates to a copper sheet tailored blank laser welding method, which adopts a double-beam mode of a blue light laser beam and an infrared laser beam to perform tailored blank welding on a copper sheet, and adopts a mode of reasonably setting the relative positions of light spots of the blue light laser beam and the infrared laser beam, and in the welding direction, the centers of the two light spots do not coincide. The blue laser is arranged in front of the infrared laser, the power of the front blue laser is low in the welding process, and the to-be-welded part of the copper sheet is mainly heated so as to improve the absorption rate of the infrared laser; on the basis, the following infrared laser is used for high-speed welding of the to-be-welded position, so that the welding spatter can be effectively inhibited, the problem of non-uniform heat dissipation is solved, uniform and high-quality welding seams can be obtained, and the requirement of laser tailored blank welding of thin copper sheets with hollow patterns is met.

Description

technical field [0001] The invention relates to the technical field of tailor welding of copper sheets, in particular to a laser tailor welding method for copper sheets, which is suitable for precise tailor welding of copper sheets with uneven heat dissipation structures such as hollow patterns. Background technique [0002] Copper sheet has good thermal conductivity and electrical conductivity, and is widely used in electronic, electrical and other products and facilities. For example, copper sheets can be stamped to manufacture LED bracket products. Compared with the traditional stainless steel bracket, the bracket made of copper stamping has the characteristics of high electrical conductivity and thermal conductivity, good heat dissipation, and is not easy to rust, which has obvious advantages in LED production and application. In actual production, it is often necessary to splice different rolls of copper sheet brackets to achieve continuous production, improve efficien...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K26/32B23K26/06B23K26/70B23K37/04
Inventor 郑江鹏王枭王家赞扈金富刘浩
Owner KEY & CORE TECH INNOVATION INST OF THE GREATER BAY AREA
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