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Study on turning force of γ-TiAl alloy

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Abstract

γ-TiAl alloy is an advanced material with a vast prospect of applications, but its processing is a well-known engineering problem. In this article, the optimum range of cutting parameters of cemented carbide tool has been obtained by several turning experiments. In fact, tool wear has a great effect on cutting force. These four major effects, flank wear width, cutting speed, cutting depth, and feed rate on turning force, have been carefully discussed. Meanwhile, the turning force model of γ-TiAl alloy has been established. This model studied both the cutting force on rake face and the wear effect force on flank face. Several key coefficients have been determined by fitting the extensive experimental results. Later, the accuracy has been examined. The experimental results show tool life is short and tool wear is intense in general. At the cutting speed of 50 m/min, when feed rate does not exceed 0.1 mm and cutting depth does not exceed 0.3 mm, tool life is relatively longer and surface quality is relatively better. Within this range, the cutting force is approximately linear with respect to the cutting depth and the feed rate. In addition, the cutting force will increase significantly with the increase of the flank wear width. It turns out the model has a higher accuracy and it can appropriately reflect the change of cutting force.

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The work is supported by the National Natural Science Foundation of China (51775280).

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Correspondence to Yu Cheng or Zhenhua Wang.

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Cheng, Y., Yuan, Q., Zhang, B. et al. Study on turning force of γ-TiAl alloy. Int J Adv Manuf Technol 105, 2393–2402 (2019). https://doi.org/10.1007/s00170-019-04356-z

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