ROTARY TRANSCORE AND METAL MOLD FOR DUST MOLDING ROTARY TRANSCORE

摘要

PURPOSE: To obtain a rotary transcore having such shape as causing no crack or partial chipping after dust molding and a metal mold for dust molding the rotary transcore. ;CONSTITUTION: In the inventive metal mold for dust molding a rotary transcore, lower punch 6 of metal mold is shaped such that the inner and outer wall faces of an annular groove 11 for arranging the coil of rotary transcore have different draft angles in order to enhance mold releasing properties of a green compact 9.;COPYRIGHT: (C)1994,JPO&Japio