Abstract—We tried to examine the power consumption for material-cutting in the variable-material removal rate (MRR) machining process. In the case of constant-MRR process, the power consumption is almost in proportion to the MRR and independent of feed rate of cutting tool and depth of cut. Namely, the MRR has been identified as the main factor for power consumption for material cutting. While in the variable-MRR machining process, the power consumption is in proportion to the MRR and its proportional constant notably depended on the depth of cut and the variation pattern of MRR during the operation. The machining with a shorter interval of MRR changes tended to show a larger power consumption than that of the machining with a longer interval of MRR changes. These facts indicate that the power consumption for metal cutting depends on the tool path and there would be an optimal tool path to minimize the power consumption and tool wear in response to a machining shape.
Index Terms—Power consumption, cutting, material removal rate, variation pattern of MRR, tool path.
Y. Kondo and Y. Itoh are with Yamagata University, 4-2-16, Yonezawa, Yamagata, 980-8552, Japan (e-mail: kondo@yz.yamagata-u.ac.jp).
Mitsugu Yamaguchi is with Salesian Polytechnic, 4-6-8 Koyamagaoka, Machida, Tokyo, 194-0215, Japan.
S. Sakamoto is with Yokohama National University, 79-2, Tokiwadai, Hodogaya, Yokohama, 240-8501, Japan.
Kenji Yamaguchi is with Yonago National College of Technology, 4448 Hikona, Yoagp, Tottori, 683-0854, Japan.
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Cite: Yasuo Kondo, Yuko Itoh, Mitsugu Yamaguchi, Satoshi Sakamoto, and Kenji Yamaguchi, "Prediction Model of Power Consumption for Variable Material Removal Rate Machining Process," International Journal of Materials, Mechanics and Manufacturing vol. 7, no. 2, pp. 68-7, 2019.
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