Inverse-Contour Machining to Eliminate Residual Stress Distortion
AssigneeRaytheon Company
InventorsRobert T. Simon, Kris E. Gregory, Thomas Horstman
Life of this patent
Estimating the term…
Abstract
A method for manufacturing a part to compensate for residual stress distortion is disclosed. The method can include obtaining a first part based on a nominal part. The first part can be distorted from the nominal part by residual stress. The method can also include determining a variation of the first part from the nominal part. The method can further include determining an offset of the variation relative to the nominal part to compensate for the variation. Additionally, the method can include making a second part using the offset of the variation, wherein residual stress distorts the second part within tolerance of the nominal part.
Claims20
A method for manufacturing a part to compensate for residual stress distortion, comprising:
- obtaining a first part based on a nominal part, wherein the first part is distorted from the nominal part by residual stress;
- determining a variation of the first part from the nominal part;
- determining an offset of the variation relative to the nominal part to compensate for the variation;
- and
- making a second part using the offset of the variation, wherein residual stress distorts the second part within tolerance of the nominal part.
A method for manufacturing a part to compensate for residual stress distortion, comprising:
- determining a first tool path for machining a nominal part;
- utilizing the first tool path to make a first part, wherein the first part is distorted from the nominal part by residual stress;
- measuring the first part to determine a contour of a variation of the first part from the nominal part;
- inverting the contour relative to the nominal part to compensate for the variation;
- determining a second tool path using the inverted contour;
- and
- utilizing the second tool path to make a second part, wherein residual stress distorts the second part within tolerance of the nominal part.
A method for facilitating manufacture of a part to compensate for residual stress distortion, comprising:
- determining an offset of a variation of a first part from a nominal part, wherein the first part is distorted from the nominal part by residual stress, and the offset of the variation is relative to the nominal part to compensate for the variation;
- and
- determining a tool path configured to machine a second part using the offset of the variation, such that residual stress distorts the second part within tolerance of the nominal part.
Dependencies are inferred from the claim text.