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Proceedings Paper

Brittle Fracture Mechanisms In Single Point Glass Abrasion
Author(s): Padraig Molloy; Martin G. Schinker; Walter Doll
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Paper Abstract

The fracture mechanisms of brittle mode glass grinding are investigated using a high stiffness, single point abrasion system, where depth of diamond penetration and speed is controlled during the scratching of the glass. Normal and tangential forces on the glass are recorded and related to scratching speed, depth of cut, and types of damage observed for speeds between lOmm/s. and 14m/s. A reduction in these forces, but with increased levels of signal oscillation due primarily to chipping in front of the diamond ,is observed with in-creasing diamond speed. The presence of water in the abrasion zone acts to reduce brittle zone scratching forces in a highly speed dependent manner.

Paper Details

Date Published: 1 January 1987
PDF: 8 pages
Proc. SPIE 0802, In-Process Optical Metrology for Precision Machining, (1 January 1987); doi: 10.1117/12.967105
Show Author Affiliations
Padraig Molloy, Fraunhofer-Institut fur Werkstoffmechanik (Germany)
Martin G. Schinker, Fraunhofer-Institut fur Werkstoffmechanik (Germany)
Walter Doll, Fraunhofer-Institut fur Werkstoffmechanik (Germany)

Published in SPIE Proceedings Vol. 0802:
In-Process Optical Metrology for Precision Machining
Peter Langenbeck, Editor(s)

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