METHOD OF FORMING METAL JOINED BODY

摘要

PROBLEM TO BE SOLVED: To provide a method of manufacturing a metal joined body which adopts a liquid phase diffusion joining technique to lessen the concentration of heat input in joining metals essentially consisting of at least either of Fe and Ni and is capable of improving the joined joint characteristics at the joint boundary of the resulted metal joined body and eventually obtaining the joined body of higher strength. SOLUTION: An insert material 3 containing B is used and is interposed between members to be joined which consist essentially of the Fe and/or Ni. These materials are then subjected to liquid phase diffusion joining. In this joining step the first and second members 1 and 2 to be joined are pressurized in the direction where the liquid phase 4 is compressed in the state that the liquid phase 4 exists therebetween, by which the joined joint characteristics at the joint boundary of the resulted metal joined body are greatly improved and the joined body of the high strength can be obtained. COPYRIGHT: (C)2003,JPO