Interferometric Monitoring Of Spindle And Workpiece On An Ultra-Precision Single-Point Diamond Facing Machine

A. E. Gee; S. G. McCandlish; K. E. Puttick

doi:10.1117/12.949450

11 April 1989 Interferometric Monitoring Of Spindle And Workpiece On An Ultra-Precision Single-Point Diamond Facing Machine

A. E. Gee, S. G. McCandlish, K. E. Puttick

Author Affiliations +

Proceedings Volume 1015, Micromachining Optical Components and Precision Engineering; (1989) https://doi.org/10.1117/12.949450
Event: 1988 International Congress on Optical Science and Engineering, 1988, Hamburg, Germany

Abstract

Investigations, using a two-axis vertical-spindle single-point diamond tool lathe to study the facing of discs, showed that, in order to establish and control conditions for cuts approaching 100nm, it was necessary to monitor the spindle for transient run-out and longer-term growth and to measure in-process the orientation of the work-face. Accordingly, an optical (Fizeau) interferometer was incorporated in alignment with the spindle so that orientation and axial motion of the face-plate and/or the work-piece could be observed and recorded and the measured data used for correction. Special requirements and problems associated with using an interferometer to monitor the 'dynamic planarity' of a rotating surface are addressed; instrumental considerations are discussed and results described.

Citation Download Citation

A. E. Gee, S. G. McCandlish, and K. E. Puttick "Interferometric Monitoring Of Spindle And Workpiece On An Ultra-Precision Single-Point Diamond Facing Machine", Proc. SPIE 1015, Micromachining Optical Components and Precision Engineering, (11 April 1989); https://doi.org/10.1117/12.949450

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