文献类型：期刊文献

英文题名：Mechanical analysis prior to the steady-state cutting of TC4 titanium alloy

作者：Hu, Bo Yuan, Sen Zou, Zichuan Ren, Zhongwei Tang, Pengfei Zhao, Xianfeng Jiang, Hongwan

第一作者：胡波

通信作者：Zhao, XF[1];Jiang, HW[1]

机构：[1]Guizhou Inst Technol, Sch Mech Engn, Guiyang 550003, Peoples R China;[2]Guizhou Univ, Sch Mech Engn, 2708 South Sect,Huaxi Ave, Guiyang 550025, Guizhou, Peoples R China;[3]Guizhou Normal Univ, Sch Mech & Elect Engn, Guiyang 550025, Peoples R China

第一机构：贵州理工学院机械工程学院

通信机构：corresponding author), Guizhou Univ, Sch Mech Engn, 2708 South Sect,Huaxi Ave, Guiyang 550025, Guizhou, Peoples R China.

年份：2025

卷号：244

外文期刊名：MEASUREMENT

收录：;EI(收录号：20245217592213);Scopus(收录号：2-s2.0-85212983867);WOS:【SCI-EXPANDED(收录号:WOS:001394957400001)】；

语种：英文

外文关键词：TC4 titanium alloy; Mechanical analysis; Blunt round contact; Blunt round-rake face contact; Mechanical modelling

摘要：The mechanical analysis of the machining process is indispensable when researching surface quality and tool life longevity. Studying the mechanical analysis before steady-state cutting aids in understanding crack propagation and the stress state of the contact surface during the machining process, which holds practical significance for subsequent investigations into tool life and chip formation. Current research primarily focuses on the steady-state cutting phase, with little emphasis on the precursor stages to this steady-state. Thus, taking TC4 titanium alloy as the research object, this paper studies the blunt round contact stage and the blunt round-rake face contact stage before steady-state cutting. By introducing classical mechanical methods such as solid mechanics and contact mechanics, stress models, cutting force models, and maximum cutting force models for the two stages are constructed. Through simulation and orthogonal cutting experiments, the influential factors of these models are analyzed, and then a comparative analysis of the theoretical models with the simulation and experimental results is conducted. The results show that the stress error in the blunt round contact and blunt round-rake face is within 10%, and the corresponding cutting force error is between 1% and 12%. The prediction model error for steadystate cutting is within 10%. The theoretical maximum cutting force and actual maximum cutting force errors for three different materials are compared and within 10%.