Abstract
In the present study, cutting conditions in face milling of AISI H13 hardened steel were optimized considering the performance of cemented carbide tool material. The initial microscopic mechanical property of the cemented carbide tool material was analyzed based on damage mechanics and boundary element method. Taking the initial microscopic mechanical property of the tool material, the initial macroscopic mechanical property of the tool material and external loads in the cutting process into account, a new tool life indicator was proposed. On the basis of the characteristics of tool life indicator and specific cutting energy, a theoretical method was established for the optimization of cutting conditions. The optimum cutting conditions were distinguished for different milling conditions. Feed per tooth fz with a value around 0.2 mm/tooth and cutting speed v ranging from 150 to 250 m/min should be used in symmetric milling to acquire a relatively long tool life and relatively low energy consumption. In down milling, feed per tooth fz should be in the range of 0.15 to 0.2 mm/tooth and cutting speed v should be between 100 and 200 m/min. Feed per tooth fz close to 0.2 mm/tooth and cutting speed v between 200 and 300 m/min should be adopted in up milling.
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This project is supported by the National Natural Science Foundation of China (Grant Nos. 51505132 and 11602079).
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Cui, X., Zheng, X. & Guo, J. Optimization of cutting conditions in hard milling with the performance of cemented carbide tool material considered. Int J Adv Manuf Technol 96, 2161–2173 (2018). https://doi.org/10.1007/s00170-018-1782-7
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DOI: https://doi.org/10.1007/s00170-018-1782-7