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Workpiece temperature rise during the cutting of AISI 4340 steel |
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| Affiliation: | 1. The Aerospace Corporation, 2310 E. El Segundo Blvd., El Segundo, CA 90245, United States;2. University of California, Los Angeles, Materials Science Department, 410 Westwood Plaza, Los Angeles, CA 90095, United States;1. School of Engineering, University of South Australia, Mawson Lakes, SA 5095, Australia;2. Industrial Engineering Department, College of Engineering, King Saud University, Riyadh 11421, Saudi Arabia |
| Abstract: | Temperature rises in workpieces were measured during the cutting of various hardnesses of steel by a ceramic tool. Thermocouples were embedded in a specially designed workpiece for the temperature measurement. This workpiece provided practical and accurate positioning of the thermocouples and it allowed the acquisition of reliable data from the cutting experiments. The effects of the workpiece hardness and cutting speed were examined and analyzed. The relationships between the workpiece temperature rise and residual stresses or structural change in a machined surface layer were discussed.It is concluded that the temperature rise in a steel workpiece during cutting by a ceramic tool is so low that it is less likely to cause any surface damage under normal conditions. |
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