System and method for positioning error compensation during manufacturing of complex-shaped gas turbine engine parts

A system for positioning error compensation during manufacturing of a complex-shaped gas turbine engine part with a machine, the system comprising:

• a memory;
• a processor;
• and
• at least one application stored in the memory and executable by the processor for
• retrieving theoretical measurements for a plurality of control points defined on the part;
• acquiring in an initial coordinate system of the machine actual measurements for the plurality of control points;
• computing an error between the actual measurements and the theoretical measurements, the error indicative of a mis-positioning of the part in the initial coordinate system;
• and
• if the error is beyond a predetermined tolerance, computing a transformation matrix representative of at least one transformation to be applied to the initial coordinate system for adjusting at least one of a position and an orientation thereof to compensate the error, and applying the transformation to the initial coordinate system;
• otherwise, generating a machining program for manufacturing the part accordingly.

A system for positioning error compensation during manufacturing of a complex-shaped gas turbine engine part with a machine, the system comprising:

• means for retrieving theoretical measurements for a plurality of control points defined on the part;
• means for acquiring in an initial coordinate system of the machine actual measurements for the plurality of control points;
• means for computing an error between the actual measurements and the theoretical measurements, the error indicative of a mis-positioning of the part in the initial coordinate system;
• and
• if the error is beyond a predetermined tolerance, means for computing a transformation matrix representative of at least one transformation to be applied to the initial coordinate system for adjusting at least one of a position and an orientation thereof to compensate the error, and applying the transformation to the initial coordinate system;
• otherwise, means for generating a machining program for manufacturing the part accordingly.