| 摘要 |
PURPOSE:To form the film of good adhesion having no pinhole by forming a plating layer on the surface of a metal member and performing the melting treatment of the plating layer on an alloy layer by projecting laser bean on this plating layer. CONSTITUTION:The surface 1a to be coated of a metal plate 1 is formed in rough face by a sand blasting method. The necessary plating layer 2 of an alloy element is formed on the surface 1a by electric plating, etc., and the melting treatment is performed by projecting the laser beam 3 of CO2, etc., toward this plating layer 2. The melting treatment integrates by melting the whole plating layer 2 and the surface 1a of a metal plate 1 by properly selecting the beam diameter of laser beam 3 and the laser moving speed. With this coating method the metal member of good adhesion having no fear for peeling nor any pinhole is obtainable. |
