Correlation of Tempering Effects With Temperature Distribution in Steel Cutting Tools

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Abstract
Experimental methods are described for determining the temperature distribution in steel cutting tools over the range 150 C to 1000 C. The techniques correlate temperature with changes in microstructure and hardness that arise due to the heat conducted into the tool. Results are presented for the machining of low carbon iron and commercially pure copper, and the effectiveness of cutting coolant is evaluated for a range of cutting speeds and for two different methods of application. Simple models for the heat sources in chip formation are derived and used to verify the experimental work by calculating the temperatures on the rake face.

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