Laser drilling

Details Laser drilling Laser drilling

2005-09-20

2005-09-20

Staicovici, Stefan (Department: 1732)

Plastic and nonmetallic article shaping or treating: processes

Laser ablative shaping or piercing

C264S482000, C219S121690, C219S121710, C219S121720, C219S121830

Reexamination Certificate

active

06946091

ABSTRACT:
When drilling a multi layered sheet-like material, drilling is first made with pulses having energy that generates an inter-layer pull-off force smaller than the adhesion force between the layers. Then pulses with higher energy are radiated for trimming the shape of the holes, and thus through-holes having a desired shape are drilled without causing delamination of the layers.

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patent: WO 86/02301 (1986-04-01), None

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