Advantages of laser welding

July 15, 2022
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Advantages of laser welding

The energy is concentrated, the welding efficiency is high, the machining accuracy is high, and the welding seam aspect ratio is large. The laser beam is easy to focus, align, and guided by optical instruments. It can be placed at an appropriate distance from the workpiece, and can be redirected between fixtures or obstacles around the workpiece. Other welding laws cannot be used due to the above-mentioned space constraints.


The heat input is small, the heat affected zone is small, the residual stress and deformation of the workpiece are small; the welding energy can be precisely controlled, the welding effect is stable, and the welding appearance is good; non-contact welding, optical fiber transmission, good accessibility, and high degree of automation. When welding thin or thin wire rods, there is no problem of melting back like arc welding. Due to the principle of "lightness", the cells used for power batteries are usually made of "lighter" aluminum material and need to be made more "thin". Generally, the shell, cover and bottom are basically required to be less than 1.0 mm. Mainstream manufacturers currently have a basic material thickness of about 0.8 mm.

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Provides high-strength welding for various material combinations, especially when welding between copper materials and between aluminum materials. It is also the only technology that can solder electroplated nickel to copper materials.