Reverse laser drilling

Details Reverse laser drilling Reverse laser drilling

1981-09-28

1984-09-25

Albritton, C. L.

Electric heating

Metal heating

By arc

219121LM, B23K 2700

Patent

active

044737378

ABSTRACT:
This invention provides a method for laser drilling small diameter, closely-spaced, and accurately located holes in a body of material which is transparent or substantially transparent to the laser radiation employed whereby the holes are drilled through the thickness of the body from the surface opposite to that on which the laser beam impinges to the surface of laser beam impingement.

REFERENCES:
patent: 3265855 (1966-08-01), Norton
patent: 3410979 (1968-11-01), Larsson
patent: 4220842 (1980-09-01), Sturmer et al.

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