Tool wear and profile development in contour grinding of optical components

Wear induced changes in grinding tool profile have been studied for a CNC contour grinding process designed for the fabrication of precision optical components. Tool profile was measured experimentally by examining the “footprint” left by the tool when subsequently fed into a prepared surface. A num...

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Bibliographic Details
Published inInternational journal of machine tools & manufacture Vol. 44; no. 4; pp. 427 - 438
Main Authors Li, Yi, Funkenbusch, P.D., Gracewski, S.M., Ruckman, J.
Format Journal Article
LanguageEnglish
Published Elsevier Ltd 01.03.2004
Subjects
Contour grinding
Optics manufacturing
Tool wear
Tool wear
Contour grinding
Optics manufacturing
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Summary:Wear induced changes in grinding tool profile have been studied for a CNC contour grinding process designed for the fabrication of precision optical components. Tool profile was measured experimentally by examining the “footprint” left by the tool when subsequently fed into a prepared surface. A numerical model was developed to predict detailed tool profiles as a function of the process parameters and total removal. Wear caused the development of approximately flat bevels on tools initially trued to a spherical shape, changing both the height and position of the lowest cutting point on the tool, with the potential to produce significant profile errors on the workpiece surface. The observation of approximately flat tool bevels was also used to develop an analytic solution for the tool shape evolution. With this analytic approximation contact height and width can be readily estimated and could be incorporated into an algorithm to adjust the tool path.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
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content type line 23
ISSN:0890-6955
1879-2170
DOI:10.1016/j.ijmachtools.2003.08.015