Metal deforming – With indication of condition or position of work – product,... – Work drawn or extruded through die
Patent
1990-05-11
1992-03-17
Jones, David
Metal deforming
With indication of condition or position of work, product,...
Work drawn or extruded through die
72430, 72 56, 72452, 310328, B21D 2600
Patent
active
050957252
ABSTRACT:
A press is described using piezoelectric actuators to achieve both the hold down of the work piece during the processing operation as well as powering the die used in deforming the work piece. The sub-assembly containing the piezoelectric element is structured to allow convenient removal from the main body of the press thereby facilitating repair operations, as well as coarse and fine adjusting facilities for the position of the piezoelectric element within the actuator assembly.
REFERENCES:
patent: 3643483 (1972-02-01), Minchenko et al.
patent: 3747382 (1973-07-01), McMaster et al.
patent: 4219755 (1980-08-01), O'Neill et al.
patent: 4306443 (1981-12-01), Matsutani
patent: 4781477 (1988-11-01), Nagasawa
patent: 4967586 (1990-11-01), Hecht
Hikita Hiroshi
Kawamura Yukinori
Machida Nobutaka
Matumoto Norikatu
Nomoto Tetuo
Fuji Electric & Co., Ltd.
Jones David
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