Laser beam welding is mainly used for joining components that need to be joined with high welding speeds, thin and small weld seams and low thermal distortion. The high welding speeds, an excellent automatic operation and the possibility to control the quality online during the process make the laser welding a common joining method in the modern industrial production.
The weld geometry describes how the parts fit together. For example, they may overlap or butt up against each other. The mechanical properties are the first thing to consider when defining the weld geometry. Is a continuous weld required, or will the weld consist of individual welding spots? Is the weld made up of a large number of short lines or lots of small circles? Here, too, the decision of which type of weld to use depends on two important factors: the required strength of the weld and the maximum amount of heat input into the component.