A method of joining clad metal to metal parts is provided. Sufficient joining strength can be achieved, and at the same time melt scattering during joining can be prevented. The method includes: a step of preparing clad metal (25), the main body of which is provided with a hole (27); a step of preparing a metal part (26) which comprises a protruding part (26a) with a diameter greater than that of the hole (27), the front end of the protruding part (26a) comprising a hole (26b) with a diameter greater than the aperture of an opening in the clad metal (25); and a step joining and soldering the hole (27) with the hole (26b).
