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SME MR94-143
- Modeling Of Thermal Behavior For Diamond Coated Alumina Tool Inserts
- standard by Society of Manufacturing Engineers, 06/01/1994
- Publisher: SME
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CARBIDE AND CERAMIC TOOL INSERTS ARE OFTEN COATED WITH A VARIETY OF HARD FILMS TO IMPROVE THE WEAR RESISTANCE AND TOOL LIFE. SINCE TOOL WEAR CAN OCCUR BY A NUMBER OF MECHANISMS, INCLUDING BOTH THERMAL AND ATHERMAL MECHANISMS, AN INVESTIGATION WAS CONDUCTED TO CHARACTERIZE THE TYPICAL EFFECTS OF APPLYING A THERMALLY CONDUCTIVE HARD COATING TO A CERAMIC TOOL INSERT. A 3-D FINITE MODEL WAS DEVELOPED FOR THE CUTTING REGION OF THE ALUMINA TOOL, TO EVALUATE THE RELATIVE THERMAL DISTRIBUTIONS AND RESULTING MECHANICAL STRESSES FOR THE COATED AND UNCOATED TOOL.
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