Precision diamond grinding of ceramics and glass
A new research initiative will be undertaken to investigate the effect of machine parameters and material properties on precision diamond grinding of ceramics and glass. The critical grinding depth to initiate the plastic flow-to-brittle fracture regime will be directly measured using plunge-grind tests. This information will be correlated with machine parameters such as wheel bonding and diamond grain size. Multiaxis grinding tests will then be made to provide data more closely coupled with production technology. One important aspect of the material property studies involves measuring fracture toughness at the very short crack sizes commensurate with grinding damage. Short crack toughness value`s can be much less than the long-crack toughness values measured in conventional fracture tests.
- Research Organization:
- Los Alamos National Lab., NM (United States); North Carolina State Univ., Raleigh, NC (United States)
- OSTI ID:
- 476640
- Report Number(s):
- LA-SUB--93-81; ON: DE97003578
- Country of Publication:
- United States
- Language:
- English
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