Patent ID: 6857556
Filing Date: 2005-02-22
Classification: B23K,B32B,C04B,Y10T

Abstract:
1. A method for producing a composite member by fitting and bonding a member having a dented portion that forms a fitting structure and a member having a protruded portion that forms a fitting structure and being different from the member having the dented portion, which comprises: uniformly spreading a fine particle material over the surface of the dented portion of the member having the dented portion, then disposing a platy or powdery hard solder to cover at least a part of the layer comprising the fine particle and further disposing the member having the protruded portion, or uniformly spreading a fine particle material over the surface of the dented portion of the member having the dented portion and disposing the member having a protruded portion having one or a plurality of holes in which a hard solder is inserted so that the member closely contacts with the layer comprising the fine particle material, or previously preparing the member having a protruded portion at the end of which is formed a layer comprising a hard solder and a fine particle material, disposing a hard solder on the surface of the dented portion of the member having the dented portion and disposing thereon the member having the protruded portion, and bonding the different members through the fitting structure in one operation of heating them to a given temperature under application of pressure to melt the hard solder and impregnating the fine particle material with this molten hard solder to form a bonding layer comprising the hard solder and the fine particle material, thereby to bond the different members through the fitting structure.