PURPOSE: To manufacture inlay clad metal, being excellent in adhesiveness of base metal and clad metal, at low cost easily.
CONSTITUTION: Base metal 1 in a flat form is bent in a cross direction at a fixed curvature, and a groove 2 in a rectangular form in a cross section is formed in a longitudinal direction of the base metal 1 on the arched face of the base metal 1 in this curved state. Clad metal 3 in a trapezoidal form in a cross section, whose cross section shape is the same as the cross section shape of the groove 2 when the curve of the base metal 1 is restored, is interposed in the groove of the base metal 1 in the curved state. Thereafter the base metal 1 is restored from the curved state and is cold rolled so that the base metal 1 and the clad metal 3 are pressure welded. As the groove 2 of the base metal 1, to which the clad metal 3 is interposed, has the cross section shape in the trapezoidal form having a narrowed opening, the clad metal 3 inside the groove 2 receives covering rolling pressure on the side faces of the clad metal 3 from above by the base metal 1, and the base metal 1 and the clad metal 3 stick strongly to each other not only on the bottom face of the groove 2 but also on its side faces.
NAKANO KOSAKU
SHINOZAKI ISAMU
OSHIMA AKIRA
