US 12,346,091 B2 · Method of manufacturing a part of an aircraft engine

Abstract

A method of manufacturing a feature in a part with a cutting tool, includes machining a semi-finished shape of the feature, determining an actual position of at least one target point on a surface of the semi-finished shape, and 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 on a digitized model of the part having the semi-finished shape of the feature. As a function of the difference, 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 is determined, and the correction is used to define a corrected tool path. The finished shape of the feature is then machined with the cutting tool by moving the cutting tool along the corrected tool path.

Claims20

Dependent claims

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.

3 more elements

A cutting machine comprising:

a tool holder holding a cutting tool;
and
a controller having a processing unit and a computer readable medium having instructions stored thereon executable by the processing unit for:
machining a semi-finished shape of a feature in a stock material of a 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 on 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.

6 more elements

Dependencies are inferred from the claim text.

Method of manufacturing a part of an aircraft engine

Life of this patent

Method of manufacturing a part of an aircraft engine

Life of this patent

Abstract

Claims20