Scratching experiments, using diamond styli and single point diamond tools, were performed to simulate Single Point Diamond Turning (SPDT). The results of these experiments were used to determine if a ductile response is possible, and then to determine the critical depth of cut or penetration depth for the ductile to brittle transition (DBT). The depths of the scratches produced at different loads were measured and correlated to the ductile and brittle response of the material. The DBT depth for Chemically Vapor Deposited (CVD) coated Silicon Carbide (SiC) samples was determined. The analysis for the critical depth (DBT) did confirm the possibility for SPDT of CVD coated SiC in the ductile regime. These results were further used for SPDT of CVD SiC. Post experimental analysis of the machined surface did reveal a final surface roughness of 8–20nm, successfully demonstrating ductile regime machining of CVD coated SiC.
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ASME 2006 International Manufacturing Science and Engineering Conference
October 8–11, 2006
Ypsilanti, Michigan, USA
Conference Sponsors:
- Manufacturing Engineering Division
ISBN:
0-7918-4762-4
PROCEEDINGS PAPER
Single Point Diamond Turning of CVD Coated Silicon Carbide
Biswarup Bhattacharya,
Biswarup Bhattacharya
Larsen and Toubro, Ltd., Mumbai, India
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John A. Patten,
John A. Patten
Western Michigan University, Kalamazoo, MI
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Jerry Jacob
Jerry Jacob
Western Michigan University, Kalamazoo, MI
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Biswarup Bhattacharya
Larsen and Toubro, Ltd., Mumbai, India
John A. Patten
Western Michigan University, Kalamazoo, MI
Jerry Jacob
Western Michigan University, Kalamazoo, MI
Paper No:
MSEC2006-21138, pp. 1153-1158; 6 pages
Published Online:
October 2, 2008
Citation
Bhattacharya, B, Patten, JA, & Jacob, J. "Single Point Diamond Turning of CVD Coated Silicon Carbide." Proceedings of the ASME 2006 International Manufacturing Science and Engineering Conference. Manufacturing Science and Engineering, Parts A and B. Ypsilanti, Michigan, USA. October 8–11, 2006. pp. 1153-1158. ASME. https://doi.org/10.1115/MSEC2006-21138
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