Method of and apparatus for machining large numbers of holes of

Details Method of and apparatus for machining large numbers of holes of Method of and apparatus for machining large numbers of holes of

1976-05-03

1978-12-26

Truhe, J. V.

Electric heating

Metal heating

By arc

346 76L, 331 945M, 219121EM, 358128, H01S 309

Patent

active

041317823

ABSTRACT:
A method of and apparatus for machining an object wherein a source of coherent radiation is pulse modulated in accordance with the desired machining and the radiation is directed to a deflecting device and deflected to the object which is moving at a controlled speed. Movement of the deflecting device is controlled to deflect the pulsed radiation on the area of the object to be machined regardless of its motion. The method is applied to engrave intaglio printing forms by using gating or pulse length modulation to reproduce accurately the large number of volume variations of the printing cells.

REFERENCES:
patent: 3636251 (1972-01-01), Daly
patent: 3751587 (1973-08-01), Insler et al.
patent: 3755646 (1973-08-01), Muller
patent: 3781902 (1973-12-01), Shim
patent: 3808394 (1974-04-01), Mominee
patent: 3832718 (1974-08-01), Berkowitz et al.
patent: 3932726 (1976-01-01), Verheyan et al.
patent: 4001840 (1977-01-01), Becker

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