Press die assembly

Details Press die assembly Press die assembly

1994-12-13

1995-11-14

Larson, Lowell A.

Metal deforming

By use of closed-die and coacting work-forcer

Cup or shell drawing

72463, 72352, B21D 2200, B21D 2220, B21D 2222

Patent

active

054656028

ABSTRACT:
A press die assembly is efficiently produced by: fabricating a press die pattern having therein grooves extending along concave corner portions thereof corresponding to concave corner portions of a product forming surface in the die of the press die assembly; fabricating a cast blank of the die by a full-mold method by using the press die pattern; and machining and finishing the product forming surface of the cast blank by utilizing the grooves as clearance space for the machining and finishing tools to obtain the finished die. In the press forming operation of the press die assembly, the grooves permit the sheet blank being press formed to slip thereby to eliminate local stretching, whereby high-quality pressed products are obtained. The grooves enables an easy machining by a tool.

REFERENCES:
patent: 3438111 (1969-04-01), Wilcox
patent: 3899912 (1975-08-01), Orain
patent: 3937053 (1976-02-01), Akamatsu

Affiliated with

Also associated with

Rating

Press die assembly does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Press die assembly, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Press die assembly will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1213966