PROCESS FOR PRODUCING CLAD MATERIAL

PROBLEM TO BE SOLVED: To provide a process for producing a clad material, which excels in productivity, facilitating control of the surface roughness and flatness of side material member, and which suppresses bonding failure. SOLUTION: There is provided a process for producing a clad material composed of a core material and, superimposed on one surface or both surfaces thereof, one or two or more side materials, comprising a preparation step of preparing a core material ingot through melting and casting of a metal for core material in the core material preparation step S1a and preparing a side material ingot through melting and casting of a metal for side material with a component formulation different from that of the metal for core material in the side material preparation step S1b; a laminating step S2a of laminating one surface or both surfaces of the core material ingot at given position with the side material ingot as a side material to thereby obtain a laminate; and a cladding hot rolling step S3 of carrying out hot rolling of the laminate to thereby obtain a clad material. COPYRIGHT: (C)2007,JPO&INPIT