Whether damage, wear and tear, or change of work piece design, laser welding assists modifications and repairs on moulds and tools, quickly, precisely, and without loss of form.

Only minor finishing is required since the deposit application is similar to the original contour. The laser fusion welding process allows fine energy dosing: Only a small volume of material is melted, thus avoiding tension. Consequently, weldings free of cracks are obtained. In most cases previous warming of the material is not essential. The tensile strength of the basis material can be reproduced by using a selection of filler wires. A subsequent heat-treatment is not necessary. The specific properties of laser welding as applied by Alpha Laser devices up to 300 Watts (especially designed for efficient deposit application) allow for homogeneous, tear and crack-free welding with filler wires in the <1mm range.

Even copper and aluminium alloys are welded with successful results. And for tool steels it is possible to obtain hardness of up to 60 HRC.