INVESTIGATION ON GUTTING TEMPERATURE IN TURNING BY A TOOL-WORK THERMOCOUPLE TECHNIQUE

Tool-chip interface temperature is analyzed experimentally during turn ing of 4140 steel alloy and Inconel 718 with tungsten carbide tools us ing a tool-work thermocouple technique. The experimental results are c ompared with Loewen and Shaw's analytical results. Based on the experi mental results, an empirical model relating the tool face temperature to cutting conditions is established for 4140 steel alloys with tungst en carbide tools. Finally, the tool-chip interface is investigated wit h flank and crater wear to determine the effect of tool face temperatu re on these tool wear mechanisms.