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.
| Number of Pages : | 6 |
| Published : | 06/01/1994 |
