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Chatter simulation and stability predictions for contour grinding of optical glasses

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Abstract

Chatter marks from 0.1 µm to 2 µm in depth have been observed on glass surfaces that have been deterministically microground in the contouring mode. A model for regenerative chatter during the contour grinding of optical glasses is developed and will be used to identify process parameter combinations that decrease the likelihood of chatter. Measurements of the grinding machine frequency response function and of the grinding stiffness were obtained to predict the stability of the grinding process. Simulation predictions agree well with experimentally observed chatter phenomena.

© 2000 Optical Society of America

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