METALLIC MATERIAL FOR LASER WELDING

摘要

PURPOSE:To stably execute laser beam welding by decreasing the reflectivity factor of laser beam from the surface at a low cost. CONSTITUTION:The surface of a metallic material is decolored by oxidation to eliminate the glossiness of the surface. As a result, the joining strength in laser beam welding is enhanced without the problem of increase in cost, which is generated at the time of plating the surface of the metal having low laser beam reflectivity.