method and device for a metallic substrate with a surface schlagwiderstandsfaehigen to oversight.

摘要

A method for providing a metal substrate with an impact resistant surface is disclosed. The surface of the substrate is exposed to high intensity laser radiation to melt a spot of the surface. Particles of a material such as WC are injected into the melt. In order to enhance the percentage of particles in the surface, thus increasing the wear resistance, there is a forced reflection of stray particles back towards the melted spot. Further a fixture for holding the substrate, comprising the essential reflection surfaces for achieving the desired back reflection is described, as well as a device for carrying out the method.