Patent ID: 7235201
Filing Date: 2007-06-26
Classification: B22F

Abstract:
1. A method of producing a compacted part out of powder material by utilizing a tool set having a top die, a bottom die, at least one top punch associated with said top die, and at least one bottom punch associated with said bottom die, said method comprising the steps of: (a) prior to filling with powder, initially positioning the top and bottom dies in contact with a bottom punch engaged in the bottom die to create a cavity for powder substantially adjacent the top die; (b) filling the cavity by moving a feeder box across the upper surface of the top die and allowing powder to fall into the cavity formed by the top die, bottom die and the bottom punch; (c) during the filling of said cavity with powder relatively moving the top and bottom die and bottom punch in order to draw powder downwardly into a portion of said cavity that is formed adjacent to said bottom die due to said relative movement; (d) compacting the powder in said top and bottom die chambers by moving said top and bottom punches toward each other; and (e) after compaction of the powder moving the top and bottom dies away from each to eject the compacted part.