The high-speed milling of titanium alloy is a very complex nonlinear dynamic cutting process, and there are mutual coupling effects between multiple physical fields of the tool. Therefore, the thermo-mechanical coupling behavior of micro-textured ball-end milling cutters during the cutting of titanium alloy was studied in depth, combined with theoretical calculations, milling experiments and simulation analysis. First, based on the experimental data of milling titanium alloy, the stress field of the micro-textured ball-end milling cutter was solved. Then, the dimensional method was used to solve the temperature field of the micro-textured ball-end milling cutter. Finally, the thermo-mechanical coupling simulation analysis of the micro-textured ball-end milling cutter was carried out, and the stress concentration area and tool breakage area of the micro-textured ball-end milling cutter under the thermo-mechanical coupling effect are obtained. This in turn gives a theoretical basis for further improving the performance and tool life of micro-textured cutters.

中文翻译：

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微纹理球头铣刀铣削钛合金时的热-机械耦合行为

钛合金的高速铣削是一个非常复杂的非线性动态切削过程，刀具的多个物理场之间存在相互耦合作用。因此，结合理论计算、铣削实验和模拟分析，深入研究了微织构球头铣刀在钛合金切削过程中的热机械耦合行为。首先，基于铣削钛合金的实验数据，求解了微织构球头铣刀的应力场。然后，采用量纲法求解微织构球头铣刀的温度场。最后，对微织构球头铣刀进行了热力耦合仿真分析，得到了微织构球头铣刀在热力耦合作用下的应力集中区和刀具断裂区。这反过来又为进一步提高微纹理刀具的性能和刀具寿命提供了理论基础。