Abstract
Generally metal injection molding (MIM) process is utilized for mass production of near net shape forming complicated parts using single metal material. If plural metal materials are used in MIM process, multi-functional parts can be manufactured in high productivity and high quality.
In this study, the same stainless steels (SUS316L/SUS316L, SUS430L/SUS430L) and the different stainless steels (SUS316L/SUS430L) were joined by using insert injection molding. For joining the same stainless steels, the joining strength had reference to the joined area. In SUS316L joined compacts, joining strength showed a tendency to be in proportional to horizontal plane of joined area. For joining the different stainless steels, the compact was most rigidly joined at 1623 K. The new phases appeared at the joined area, which were mixture of ferrite and martensite because of the diffusion of Ni and Mo from SUS316L to SUS430L side.
