Method of forming a shaped hole

Details Method of forming a shaped hole Method of forming a shaped hole

2005-07-05

2005-07-05

Evans, Geoffrey S. (Department: 1725)

Electric heating

Metal heating

By arc

Reexamination Certificate

active

06914214

ABSTRACT:
A method of manufacturing a through hole in a component between a first surface and a second surface, the through hole including a cavity formed in the first surface and a communicating passage between the second surface and the cavity including the steps of:a) laser percussion drilling a plurality of blind holes in the first surface to form the cavity andb) drilling a communicating passage between the cavity and the second surface.

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patent: 0 365 195 (1990-04-01), None
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patent: WO 99/36221 (1999-07-01), None
patent: WO 02/32614 (2002-04-01), None

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