Blanking method

Details Blanking method Blanking method

1996-06-11

1998-01-27

Crane, Daniel C.

Metal deforming

With cutting

By shearing tool-couple

72335, B21D 2808

Patent

active

057111766

ABSTRACT:
Disclosed is a blanking method according to which, when producing a part by blanking from a plate material, a forming process consisting of coining is performed on the upper and lower surfaces of that portion of the plate material which becomes a scrap after the blanking. By the energy needed for this coining, the strain energy accumulated in the press as a result of the blanking of the part is absorbed. In this method, the breakthrough generated when producing parts by blanking with a press and a die can be mitigated or eliminated.

REFERENCES:
patent: 3434327 (1969-03-01), Speakman
patent: 4711115 (1987-12-01), Sukonnik
patent: 5253416 (1993-10-01), Harland

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