Engraving method and apparatus using cooled magnetostrictive act

Details Engraving method and apparatus using cooled magnetostrictive act Engraving method and apparatus using cooled magnetostrictive act

1996-01-11

1998-03-24

Frahm, Eric

Facsimile and static presentation processing

Facsimile

Recording apparatus

310 26, B41C 102, H01L 4112

Patent

active

057318816

ABSTRACT:
An engraving head apparatus and method for engraving a gravure cylinder is shown. The engraving head apparatus includes a magnetostrictive actuator formed from a magnetostrictive material such as Tb.sub.1 Dy.sub.1-x. which elongatably drives a diamond-tipped stylus arm in a reciprocal manner in response to a varying magnetic field created by a bias coil and a drive coil. A cryogenic cooling mechanism is used to cool the magnetostrictive actuator when driving the stylus.

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Application Manual for the Design of ETREMA Terfenol-D Magnetostrictive Transducers, 1988.

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