Process for tightly closing a bore in a work piece made of ducti

Details Process for tightly closing a bore in a work piece made of ducti Process for tightly closing a bore in a work piece made of ducti

1998-10-09

2000-02-01

Crane, Daniel C.

Metal deforming

With cutting

By composite tool

72325, 72335, 72362, B21D 2810

Patent

active

060189762

ABSTRACT:
The process is characterized by means of successively executed displacements of material of a work piece into the inner bore diameter at different points of the mouth of a bore. The displacement of the material is executed by means of a die that can be moved at least approximately in the direction of the bore axis. The process for tightly closing a bore can preferably be used with work pieces comprised of ductile material, in particular an aluminum wrought alloy.

REFERENCES:
patent: 1325194 (1919-12-01), Geist
patent: 4072039 (1978-02-01), Nakanishi
patent: 5263353 (1993-11-01), Bakermans

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