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Investigation of MQL parameters in milling of titanium alloy

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Abstract

Rational parameters for the minimum quantity lubrication (MQL) are essential to reduce cutting temperature and extend tool life during titanium alloys’ milling processing. However, little research has been done on the effect of nozzle elevation angle on Ti-6Al-4V milling. This article’s objective is to experimentally elucidate the impact of various MQL parameters, including oil flow rate, nozzle distance, and nozzle elevation angle in the end-milling of Ti-6Al-4V. Response surface methodology (RSM) analyzes MQL parameters’ influence on the cutting temperature, milling force, and acceleration. Results demonstrated that cutting temperature first decreases and increases with the increase of the oil flow rate increased from 30 to 250 ml/h. When the nozzle distance is either too large or too small, the measured cutting temperature, cutting force, and acceleration are higher than those measured at a nozzle distance of 60 mm. The nozzle elevation angle is the predominant factor affecting the experimental results. And proper nozzle settings can reduce the cutting temperature by 15 °C, the cutting force by at least 5.6%, and the acceleration by 8.9%.

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Availability of data and materials

The datasets used or analyzed during the current study are available from the corresponding author on reasonable request.

Funding

This work was supported by the National Natural Science Foundation of China under Grant 51975335, Key R&D Program of Shandong Province under Grant 2019GGX104008, Grant 2019GGX104006, Grant 2019JZZY020318, 2019JZZY020313.

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Authors and Affiliations

  1. Research Centre for Aeronautical Component Manufacturing Technology & Equipment, Key Laboratory of High-efficiency and Clean Mechanical Manufacture, National Demonstration Center for Experimental Mechanical Engineering Education, School of Mechanical Engineering, Shandong University, Jinan, 250061, China

    Zhuoliang Zan, Kai Guo, Jie Sun, Xin Wei, Yecheng Tan & Bin Yang

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  1. Zhuoliang Zan
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  2. Kai Guo
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  3. Jie Sun
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  4. Xin Wei
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Contributions

Zhuoliang Zan: Validation, data curation, formal analysis, investigation, writing-original draft, writing-review and editing. Kai Guo: Writing-original draft, supervision, formal analysis, investigation, project administration, funding acquisition. Jie Sun: Writing-original draft, project administration, funding acquisition. Wei Xin, Yecheng Tan: Data acquisition. Yang Bin: Programming suggestions. All the authors have read and agreed to the manuscript.

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Correspondence to Kai Guo.

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Zan, Z., Guo, K., Sun, J. et al. Investigation of MQL parameters in milling of titanium alloy. Int J Adv Manuf Technol 116, 375–388 (2021). https://doi.org/10.1007/s00170-021-07441-4

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