Patent ID: 11906488
Assignee: HILL ENGINEERING, LLC
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 17:
18. An appliance for use in residual surface stress analysis of a component under test (CUT), the appliance comprising:
a motion platform having two or more mutually orthogonal axes of motion;
a drive mechanism for each motion axis coupled to a control system;
a profiling probe for probing a surface proximate to a region of the intended light cuts and mapping a surface profile of the region;
a machining tool coupled to the control system, wherein the tool is configured to machine a plurality of light cuts in a component under test (CUT) to produce a machined feature at a predetermined angle relative to the surface based on the mapped surface profile without introducing additional surface residual stress from the machining of the plurality of light cuts, so that residual surface stress in an area proximate to the machined feature is interrupted from a bulk of the CUT, wherein the predetermined angle is maintained throughout the feature during the machining and wherein the predetermined angle is based on the mapped surface profile; and
wherein the control system includes a processor and interface enabling measurement of a change in surface strain resulting from the machining for use in calculating residual surface stress of the CUT.