DEVICE AND METHOD FOR PRESSING A METAL POWDER COMPACT

摘要

A method of pressing a powder metal compact comprising partially filling a die cavity with powder metal, engaging a second die with the first die, extending radially inwardly punches for forming a transverse feature in the compact, filling the die cavity with powder metal, compressing the powder metal with a punch, relieving pressure on the compact, withdrawing the radially inwardly punches so as to allow axial movement of the compact, withdrawing the second die, and ejecting the compact from the die while simultaneously filling the die cavity.