The Influence of Cutting Tool Geometry in a Dry Turning Operation of Carbon Steel (S50C) in Automotive Parts Production

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Paisan Thongsong
Sirichai Torsakul
Phanphong Kongphan
Prajak Angboonta


This research aims to investigate an influence of cutting tool geometry in a dry turning operation of the medium carbon steel (S50C) on a chip formation, cutting temperature, and surface roughness. Entering and rack angles were the main process parameters in this study ranged between -10o and 10o (-10o, -5o,0o,5o,10o) for both parameters, while other parameters, including cutting speed, feed rate and depth of cut, were fixed at 70 m/min, 0.5 mm/tooth/rev, and 0.5 mm, respectively. The cutting tool was a high speed steel (HSS) classification P with a cross-section of 14x14 mm.  Based on the experimental results, it can be concluded that a tool wear, cutting temperature, and surface roughness can be reduced when the entering angle was increased. It can be found that a combination of 10° entering angle and 5° rack angle, -5° entering angle and 10° rack angle, and 10° entering angle and 0° rack angle resulted in the lowest tool wear, the lowest cutting temperature, and the lowest surface roughness in this study. 

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Thongsong, P., Torsakul, S. ., Kongphan, P. . ., & Angboonta, P. (2019). The Influence of Cutting Tool Geometry in a Dry Turning Operation of Carbon Steel (S50C) in Automotive Parts Production. Journal of Engineering, RMUTT, 17(2), 163–171. Retrieved from
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