Sossity Amber Flamand

US Patent:

20080223835, Sep 18, 2008

Filed:

Aug 7, 2007

Appl. No.:

11/835137

Inventors:

TERREL E. KUHN - MESA AZ, US
SOSSITY A. FLAMAND - PHOENIX AZ, US
GREGORY O. WOODCOCK - MESA AZ, US
RODOLPHE DUDEBOUT - PHOENIX AZ, US
LOWELL FRYE - CHANDLER AZ, US

Assignee:

HONEYWELL INTERNATIONAL, INC. - Morristown NJ

International Classification:

B23K 26/08

US Classification:

21912171

Abstract:

Methods are provided of forming a plurality of fan-shaped effusion holes on a combustor having a surface, each hole having an outlet on the combustor surface. The method may include rotating the combustor relative to a laser beam, and positioning the combustor to a first position where the laser beam is at a first predetermined angle relative to the combustor surface. The laser beam is pulsed at the combustor surface to form a first plurality of trepan cuts. The first predetermined angle is adjusted to a second position where the laser beam is at a second predetermined angle relative to the combustor surface. The laser beam is pulsed at each trepan cut of the first plurality of trepan cuts, to thereby form a cut for at least a portion of the fan shape of each effusion hole outlet, wherein each cut overlaps a trepan cut of the first plurality of trepan cuts.