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Why is it difficult for laser welding machines to weld copper products?

Views: 35     Author: Site Editor     Publish Time: 11-12-2021      Origin: Site

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As we all know, the laser welding machine has the advantages of high energy density, small deformation, narrow heat-affected zone, high welding speed, easy automatic control, and no subsequent processing. In recent years, laser welding machines have become an important means of metal material processing and manufacturing, and are increasingly widely used in various fields. However, laser welding machines are constrained when welding copper and copper alloys. Why? The following Leapion laser tells you:

Copper is a highly reflective material, and the welding of copper and copper alloys has always been a difficult technical problem to overcome. However, when performing laser welding operations on copper parts, the processing industry related to copper products not only requires the firmness of the weld seam, but also the smooth and flat appearance of the weld seam without affecting the aesthetics.

So why is it so difficult for laser welding machines to weld copper? There are two main reasons:

1. The reflectivity of copper products is high, and it is difficult for the laser to gather and heat the copper.

2. The thermal conductivity of copper products is very large, and the required heat input is large, and the heating of the laser is relatively concentrated, which can not effectively compensate for the rapid loss of heat dissipation of copper materials.

The laser welding machine uses a high-energy laser beam to act on the surface of the material to melt the surface of the material to achieve the purpose of welding.

When laser welding copper materials, the high thermal conductivity of copper materials makes the high-energy laser heat rapidly diffuse from the welding joint, and it is difficult for the materials to maintain thermal balance for reliable welding.

Of course, the laser welding machine is a new type of welding method with many advantages. For example: small welding seam width, small heat-affected zone, small deformation, fast welding speed, smooth and beautiful welding seam, no treatment or simple treatment after welding, high welding seam quality, no porosity, accurate control, focusing of light spots Small, high positioning accuracy, easy to realize automation.

Although the laser welding machine is difficult to weld on copper materials, it is not insurmountable. Tomorrow we will continue to share how to solve the welding problems of copper and copper alloys, so stay tuned for Leapion laser.

For other information and professional consultation on laser welding machines, please pay attention to Leapion Laser, Leapion Laser 7×24 hours online service.


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