Power is an important parameter for mechanical design, processing parameter optimization and motor design. A power model is established for medium equipment (aircraft, steamship, cutting machine, etc.) based on specific cutting energy and material removing rate (MRR). A group of turning experiments were carried out on aluminum alloy 6061 to validate the established power model. The specific turning energy varies with the rotation speed (cutting speed) undulately, and it decreases with increase in the feed per revolution and cutting depth. The MRR increases with the turning parameters. The power increases with increase in the turning parameters due to the larger MRR, although the specific turning energy decreases with the decrease in the turning parameters. The turning power can be classified as kinetics power and stress power. The power efficiency increases with the increase in the turning parameters.
Specific cutting energy Material removal rate Power model Power type Power efficiency
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This paper is supported by (1) Tianjin City High School Science and Technology Fund Planning Project (2017KJ111) and (2) Innovation Team Training Plan of Tianjin Universities and Colleges (Grant No. TD13-5096). Authors thank Miss H. Yu for help in revision process.
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