COMPACTING METHOD AND COMPACTING DIE FOR SINTERED COMPONENT

PROBLEM TO BE SOLVED: To provide a die, when a planetary carrier with an undercut part in which simple demolding to an axial direction and a radial direction is impossible is produced by a power metallurgy method, the whole green compact can be compacted so as to be integrally drawn out from the die. SOLUTION: Cavities corresponding to an upper plate part 22 and a lower plate part 23 are formed at the upper and lower parts of the core part of a circular core, green compacts corresponding to the upper plate part 22 and the lower plate part 23 are compacted between the upper and lower punches and the core part, and further, a space part 25 of an undercut part is formed. By rotating the circular core, the core part is escaped to a relief hole 21, and, the circular core is moved to the axial direction from the above state, thus the core part can be drawn out. COPYRIGHT: (C)2010,JPO&INPIT