Method of machining a feature in an aircraft engine component
AssigneePratt & Whitney Canada Corp.
InventorsRachid Guiassa, Visal Ing
Life of this patent
Estimating the term…
Abstract
A method of machining a feature in a component using a machine having a support rotatable about a rotation axis and having a cutting tool movable relative to the component, the component being mounted on the support for rotation about a central axis of the component, the method includes: determining coordinates of at least three points on a reference surface of the component, the at least three points being circumferentially offset from one another relative to the central axis; determining an angular correction to apply to the cutting tool based on the coordinates of the at least three points; and machining the feature in the component using the cutting tool angled with the angular correction.
Claims18
A method of machining a feature in a component using a machine having a support rotatable about a rotation axis and having a cutting tool movable relative to the component, the component being mounted on the support for rotation about a central axis of the component, the method comprising:
- determining coordinates of at least three points on a reference surface of the component, including determining probed coordinates of the at least three points by:
- probing a first point of the at least three points, the first point being probed at a first angular position of the component about the rotation axis;
- rotating the component about the rotation axis and probing a second point of the at least three points at a second angular position;
- and
- rotating the component about the rotation axis and probing a third point of the at least three points at a third angular position;
- determining an angular correction to apply to the cutting tool based on the coordinates of the at least three points;
- and
- machining the feature in the component using the cutting tool angled with the angular correction.
A cutting machine comprising:
- a support rotatable about a rotation axis and operable to support a component to be machined and to rotate the component about a central axis of the component;
- a cutting tool movable relative to the component;
- a probe movable relative to the component;
- and
- a controller having a processing unit and a computer-readable medium having instructions stored thereon executable by the processing unit for:
- determining coordinates of at least three points on a reference surface of the component, including determining probed coordinates of the at least three points by:
- probing a first point of the at least three points, the first point being probed at a first angular position of the component about the rotation axis;
- rotating the component about the rotation axis and probing a second point of the at least three points at a second angular position;
- and
- rotating the component about the rotation axis and probing a third point of the at least three points at a third angular position;
- determining an angular correction to apply to the cutting tool based on the coordinates of the at least three points;
- and
- machining a feature in the component using the cutting tool angled with the angular correction.
Dependencies are inferred from the claim text.