Flexible coining die

Details Flexible coining die Flexible coining die

1996-10-28

1998-05-19

Jones, David

Metal deforming

By relatively movable offset tool-faces

With tool motion in fixed path

72387, 72465, B21D 501

Patent

active

057524068

ABSTRACT:
A flexible coining die for producing elongated bearing pads of a predetermined radius for use in nuclear reactors. The die is provided with a longitudinal groove having predetermined shape extending across the die. The die is supported by a block which will allow the die to bend at the groove so that the groove effectively "pinches" a bearing pad placed in the groove to be shaped during a coining operation. When the punch is withdrawn, the die returns to its undeflected shape and no longer "pinches" the bearing pad. The pad may be easily removed from the die.

REFERENCES:
patent: 3276239 (1966-10-01), Achler et al.
patent: 3444716 (1969-05-01), Martin
patent: 4295352 (1981-10-01), Stokes et al.
patent: 5099675 (1992-03-01), Heath
patent: 5353622 (1994-10-01), Theener
patent: 5365766 (1994-11-01), Takahashi et al.

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