MOLDING DIE APPARATUS

PROBLEM TO BE SOLVED: To provide a molding die apparatus which can subject a composite stock obtained by integrally molding a flange part composed of a green compact around a shaft part made of a melted material to integration molding at fixed and high joining strength without depending on press-fitting and without causing damages such as cracks and fracture. SOLUTION: A shaft part 3 fed to a shaft part set position by a shaft part feeding means 50 is inserted into an upper punch 33 by a shaft part charging rod 61 and the shaft part 3 is further inserted into a die hole 10a following the powder compression operation of the upper punch 33, and, in this state, the power packed into the die hole 10a is compressed in the shaft direction by the upper punch 33 and the lower punch 23. Simultaneously with the compression molding of a green compact 2 in the flange part, the green compact 2 can be integrally molded to the shaft part 3, and molding without depending on press-fitting is made possible. COPYRIGHT: (C)2010,JPO&INPIT