Why does laser weld buildup occur?

There is obviously too much filler material in the weld during filling welding, and the weld seam is too high. Cause: The welding wire feeding speed is too fast or welding speed is too slow during welding. Solution: Increase the welding speed or decrease the welding wire feed speed, or reduce the laser power.

What are the causes of laser welding spatter?

After laser welding is completed, many metal particles appear on the surface of the material or workpiece. Cause: The surface of the material or workpiece is not cleaned, there are oil stains or pollutants, or it may be due to the volatilization of the galvanized layer. Solution: Clean the material or workpiece before laser welding.

Why is there a problem of slag inclusion on the surface during laser welding?

During the welding process, the surface slag inclusions that can be seen from the outside mainly appear between layers. Cause:  A. During multi-layer multi-pass welding, the interlayer coating is not clean; or the surface of the previous layer of weld is not smooth or the surface of the weldment does not meet the requirements. B.… Continue reading Why is there a problem of slag inclusion on the surface during laser welding?

How to solve the problem of burning the substrate when laser welding PCB?

With the development and advancement of electronics, new requirements for PCB substrate materials have been put forward, thus driving the continuous development of copper-clad laminate standards. In a complete circuit board manufacturing process, welding is an essential process. Generally speaking, the substrate is the copper-clad board. It is used as the base material for manufacturing PCB because… Continue reading How to solve the problem of burning the substrate when laser welding PCB?