On-machine scanning measurement of workpiece geometry has a strong advantage in its efficiency, compared to conventional discrete measurement using a touch-trigger probe. When a workpiece is rotated and tilted, position and orientation errors in workpiece setup with respect to the machine’s rotary axes can be a significant contributor to the measurement error. The machine’s geometric errors also influence the measurement error. To establish the traceability of on-machine laser scanning measurement with workpiece rotation, this paper kinematically formulates their contribution to measured profiles. As a practical application example, this paper studies the sensitivity of work-piece setup errors and rotary axis geometric errors on the error in laser scanning measurement of an axis-symmetric part.
Contribution of Five-Axis Machine Geometric Errors and Workpiece Setup Errors to On-Machine Laser Scanning Measurement
Ibaraki, S, Goto, S, Tsuboi, K, Saito, N, & Kojima, N. "Contribution of Five-Axis Machine Geometric Errors and Workpiece Setup Errors to On-Machine Laser Scanning Measurement." Proceedings of the ASME 2018 13th International Manufacturing Science and Engineering Conference. Volume 4: Processes. College Station, Texas, USA. June 18–22, 2018. V004T03A065. ASME. https://doi.org/10.1115/MSEC2018-6384
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