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This research demonstrates a new error compensation scheme in diamond turning, reducing roundness error significantly.
This paper describes an error-compensation scheme for the improvement of workpiece roundness error in a diamond turning process. The scheme entails an in-situ error metrology system, an error separating technique, a piezo-electric micro-positioning system, and a P-integrator repetitive controller. The scheme is realized on a diamond turning lathe and demonstrates the reduction of the roundness error by more than an order of magnitude in real machining.
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Li et al. (1995) studied this question.
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