Development of a friction model and its application in finite element analysis of minimum quantity lubrication machining of Ti-6Al-4 V
Development of a friction model and its application in finite element analysis of minimum quantity lubrication machining of Ti-6Al-4 V
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DOI：
10.1016/j.jmatprotec.2016.07.017
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发表时间：
2016-12
影响因子：
6.3
通讯作者：
Nilanjana Banerjee;Abhay Sharma
中科院分区：
文献类型：
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作者：
Nilanjana Banerjee;Abhay Sharma
本研究报告了ti - 6al - 4v的最小量润滑（MQL）加工的实验和数值研究，其中建立了作为MQL参数函数的摩擦模型，并随后用于MQL过程的有限元分析。该研究提出了通过控制MQL过程中的油体积流量来降低比切削能量的新观察结果，从而影响加工表面和刀具磨损。通过摩擦学研究，建立了滑动速度、气压和油体积流量对摩擦系数的函数模型。正交车削过程中切削力的预测值与实测值吻合良好，表明了该方法的有效性。提出了影响摩擦和磨损模式的机制。
The present investigation reports an experimental and numerical study on minimum quantity lubrication (MQL) machining of Ti-6Al–4 V wherein a friction model as a function of MQL parameters is developed and is subsequently used in finite element analysis of the MQL process. The investigation presents new observations on reduction in specific cutting energy through control on oil-volume flow rate during MQL and thereby affecting the machined surface and tool wear. A tribological study is conducted to construct a friction model as a function of sliding speed, air pressure, and oil-volume flow-rate on the friction coefficient. The predicted and experimentally measured cutting forces in an orthogonal turning operation are in good agreement indicating efficacy of the proposed approach. The mechanisms responsible for affecting the friction and wear patterns are presented.