US 12,346,091 B2
Method of manufacturing a part of an aircraft engine
Rachid Guiassa, Longueuil (CA)
Assigned to PRATT & WHITNEY CANADA CORP., Longueuil (CA)
Filed by PRATT & WHITNEY CANADA CORP., Longueuil (CA)
Filed on Nov. 19, 2021, as Appl. No. 17/530,685.
Prior Publication US 2023/0158590 A1, May 25, 2023
Int. Cl. G05B 19/41 (2006.01); G05B 19/18 (2006.01); G05B 19/401 (2006.01); G05B 19/404 (2006.01)
CPC G05B 19/41 (2013.01) [G05B 19/186 (2013.01); G05B 19/401 (2013.01); G05B 19/404 (2013.01); B23P 2700/01 (2013.01); G05B 2219/36063 (2013.01); G05B 2219/37198 (2013.01); G05B 2219/50252 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method of manufacturing a feature in a part of an aircraft engine with a cutting tool, comprising:
machining a semi-finished shape of the feature in a stock material of the part by moving the cutting tool relative to the stock material;
determining an actual position of at least one target point on a surface of the semi-finished shape of the feature, the surface to be machined to achieve a final shape of the feature;
computing a difference between the determined position of the at least one target point and a nominal position of the at least one target point, the nominal position obtained from a digitized model of the part having the semi-finished shape of the feature;
as a function of the difference, determining a correction to a position of the cutting tool on a nominal tool path to achieve the final shape of the feature from the semi-finished shape, and using the correction to define a corrected tool path; and
machining the finished shape of the feature with the cutting tool by moving the cutting tool along the corrected tool path.