PROCESS FOR PRODUCING METAL MEMBER, STRUCTURE MEMBER WITH THUS PRODUCED METAL MEMBER, AND METHOD OF REPAIRING METAL MEMBER

摘要

A process for producing a metal member, in which the fatigue characteristic and the anticorrosion property can be enhanced; a structure member with the thus produced metal member; and a method of repairing a metal member. The process for producing a metal member comprises the projection step of projecting grains of 200 µm or less average diameter onto the surface of a metal material including an aluminum alloy with the use of compressed air/compressible gas and the chemical treatment step of, after the projection step, providing the surface with a coating by chemical treatment.