单颗磨粒切削TC4钛合金过程摩擦行为仿真与研究  

Simulation and Research on Friction Behavior in Single Abrasive Grain Cutting TC4 Titanium Alloy

作　　者：陈振 赵盼 闫蕊 路丹妮 Chen Zhen;Zhao Pan;Yan Rui;Lu Danni(School of Mechanical Engineering,Xi’an Aeronautical Institute,Xi’an 710077,China;School of Intelligent Manufacturing and Control Technology,Xi’an Mingde Institute of Technology,Xi’an 710124,China;Key Laboratory of High Performance Manufacturing for Aero-engine,Ministry of Industry and Information Technology,Northwestern Polytechnical University,Xi’an 710072,China)

机构地区：[1]西安航空学院机械工程学院,陕西西安710077 [2]西安明德理工学院智能制造与控制技术学院,陕西西安710124 [3]西北工业大学航空发动机高性能制造工业和信息化部重点实验室,陕西西安710072

出　　处：《钛工业进展》2024年第2期35-40,共6页Titanium Industry Progress

基　　金：陕西省自然科学基础研究计划资助项目(2023JCYB-431,2023JCYB-080);陕西省教育厅科研计划项目(23JK0495,23JP124);陕西省“十四五”教育科学规划课题(SGH23Q0324);陕西高校青年创新团队项目(2022);教育部产学合作协同育人项目(220906280183841);西安明德理工学院科研基金资助项目(2022XY02L04)。

摘　　要：通过有限元仿真软件研究了单颗磨粒在切削TC4钛合金过程中的摩擦行为及其对抛光加工的影响。利用Abaqus软件建立了单颗磨粒切削TC4钛合金过程中材料的塑性变形模型,并应用迭代自适应网格重划分技术,准确模拟了不同摩擦系数下单颗磨粒切削TC4钛合金表面时的接触应力分布和塑性变形,为优化TC4钛合金叶片抛光工艺提供了理论依据。研究表明,摩擦系数对切削深度和材料堆积率有影响,特别是在磨粒切出阶段,摩擦系数的增加会显著促进材料在磨粒前端和两侧的堆积,故在实际抛光加工中应合理控制摩擦系数。The friction behavior during the cutting of TC4 titanium alloy by single abrasive grain and its impact on polishing process were studied through finite element simulation software.The Abaqus software was used to establish a plastic deformation model during the cutting of TC4 titanium alloy by single abrasive grain,and the iterative adaptive mesh remeshing technology was applied to accurately simulate the contact stress distribution and plastic deformation under different friction coefficients,which provided a theoretical basis for optimizing the polishing process of TC4 titanium alloy blades.The analysis results reveal the impact of friction coefficient on the cutting depth and material pile-up ratio,especially during the cutting-out stage of the abrasive grain,the increase in friction coefficient significantly promotes the accumulation of material at the front end and both sides of the abrasive grain,so it is important to control the friction coefficient in actual polishing process.

关 键 词：单颗磨粒 有限元仿真 塑性变形 材料堆积率 摩擦行为 

分 类 号：TG580[金属学及工艺—金属切削加工及机床]