Forming method, forming tools and elastic punch

Details Forming method, forming tools and elastic punch Forming method, forming tools and elastic punch

1998-11-19

2000-02-29

Jones, David

Metal deforming

By application of fluent medium, or energy field

With actuated tool engaging work

724651, 724668, B21D 2210

Patent

active

060294868

ABSTRACT:
A forming method of forming a plate-shaped workpiece using a female tool having a concave section of a desired shape and a male tool which matches with the female tool, includes the following steps: providing an elastic punch in a cylindrical holder provided in the male tool; pressurizing and compressing the elastic punch relatively by a pressuring member; pressing the holder against the workpiece by means of one portion of the elastic punch; and projecting one portion of the elastic punch from the holder so as to deform a portion of the workpiece to be processed according to the shape of the concave section of the female tool so that the workpiece is formed in a state such that the workpiece is nipped pressingly between the female tool and the holder.

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patent: 5490407 (1996-02-01), Doose
patent: 5599565 (1997-02-01), Dittlo

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