Patent ID: 7942030
Filing Date: 2011-05-17
Classification: B21D,Y10S

Abstract:
1. A die assembly structured to be affixed to a shell press, the die assembly comprising: at least one die shoe comprising a first end, a second end disposed opposite and distal from the first end, and a number of divisions between the first end and the second end, wherein the divisions are structured to divide said die shoe into a plurality of pieces, wherein operation of said shell press generates heat causing said pieces to thermally expand, wherein the spacing between said pieces accommodates said thermal expansion, wherein each of the divisions between adjacent pieces of said die shoe has a profile, wherein the profile is not straight, and wherein said die shoe further comprises a first edge and a second edge disposed opposite and distal from the first edge; wherein the profile is a stepped profile; wherein the stepped profile includes a first segment, a second segment and a third segment interconnecting the first segment and the second segment; wherein the first segment extends from the first edge of said die shoe toward the second edge of said die shoe; wherein the second segment extends from the second edge of said die shoe toward the first edge; wherein the first segment is horizontally offset from the second segment; and wherein the third segment extends perpendicularly between the first segment and the second segment.