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Proceedings Paper

A comparison of force and acoustic emission sensors in monitoring precision cylindrical grinding
Author(s): Eric R. Marsh; Jeremiah A. Couey; Byron R. Knapp; R. Ryan Vallance
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Paper Abstract

Aerostatic spindles are used in precision grinding applications requiring high stiffness and very low error motions (5 to 25 nm). Forces generated during precision grinding are small and present challenges for accurate and reliable process monitoring. These challenges are met by incorporating non-contact displacement sensors into an aerostatic spindle that are calibrated to measure grinding forces from rotor motion. Four experiments compare this force-sensing approach to acoustic emission (AE) in detecting workpiece contact, process monitoring with small depths of cut, detecting workpiece defects, and evaluating abrasive wheel wear/loading. Results indicate that force measurements are preferable to acoustic emission in precision grinding since the force sensor offers improved contact sensitivity, higher resolution, and is capable of detecting events occurring within a single revolution of the grinding wheel.

Paper Details

Date Published: 2 May 2005
PDF: 3 pages
Proc. SPIE 10315, Optifab 2005: Technical Digest, 103150F (2 May 2005); doi: 10.1117/12.605545
Show Author Affiliations
Eric R. Marsh, The Pennsylvania State Univ. (United States)
Jeremiah A. Couey, The Pennsylvania State Univ. (United States)
Byron R. Knapp, Olympic Precision (United States)
R. Ryan Vallance, George Washington Univ. (United States)

Published in SPIE Proceedings Vol. 10315:
Optifab 2005: Technical Digest
Robert E. Fischer; Masahide Katsuki; Matthias Pfaff; Kathleen A. Richardson, Editor(s)

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