Abstract
In this study, the cutting characteristics of a drill reamer, which has conventional twist drill cutting edges appended for reaming, were investigated. A drill reamer has three types of cutting edges, whose roles are drilling, semi-finishing, and finishing. The cutting characteristics of a conventional twist drill were compared to those of the drill reamer. The cutting characteristics were evaluated using the thrust force, cutting torque, surface roughness, wear behavior of the cutting edges, and cutting edge temperature. The study used a workpiece made of carbon steel. The temperature of the cutting edge for reaming reached a maximum value of approximately 420°C, even though the depth of the cut was very small. The inner surface roughness with the drill reamer was superior to that with the conventional drill, even under dry and low-speed cutting conditions. The abrasive wear observed on the margin face of the cutting edge used for reaming.
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Recommended by Associate Editor Jihong Hwang
Masato Okada received his B.S. and M.S. degrees in Fukui University, Japan, in 2001 and 2003, respectively. He also received his Ph.D. in Kanazawa University, Japan, in 2008. He is currently an Assistant Professor in Institute of Science and Engineering at Kanazawa University, Ishikawa, Japan. His research interests include surface finishing and metal forming techniques.
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Okada, M., Asakawa, N., Fujita, Y. et al. Cutting characteristics of twist drill having cutting edges for drilling and reaming. J Mech Sci Technol 28, 1951–1959 (2014). https://doi.org/10.1007/s12206-014-0343-8
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DOI: https://doi.org/10.1007/s12206-014-0343-8