Ti3Al2.5V钛合金切削加工刀具磨损及其影响仿真分析  

Simulation Analysis of Tool Wear and Its Impact in Machining Ti3Al2.5V Titanium Alloy

作　　者：周兆锋[1] 周晚林[2] 董小飞[1] 宋树权[1] ZHOU Zhaofeng;ZHOU Wanlin;DONG Xiaofei;SONG Shuquan(School of Mechanical Engineering,Yancheng Institute of Technology,Yancheng 224051,China;College of Mechanical and Electrical Engineering,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China)

机构地区：[1]盐城工学院机械工程学院,盐城224051 [2]南京航空航天大学机电学院,南京210016

出　　处：《组合机床与自动化加工技术》2025年第3期165-169,176,共6页Modular Machine Tool & Automatic Manufacturing Technique

基　　金：国家自然科学基金青年基金项目(51605414);江苏省产学研合作项目(BY2016065-34)。

摘　　要：通过数值模拟方法深入探讨了Ti3Al2.5V钛合金在机械加工过程中的刀具磨损现象,该材料因其在航空行业中的广泛应用及加工挑战而受到高度关注。鉴于飞机部件需要具备卓越的疲劳耐久性,强调维持表面的完整性并通过精心选择加工参数实现此目标。随着加工的进行,刀具磨损会不断改变其几何形态,这一变化进而影响加工力、温度和应力等关键参数。为了定量分析刀具磨损对这些因素的影响,开发了一种有限元模型。研究结果不仅展示了刀具磨损对加工效率和质量的潜在影响,还为刀具的及时更换提供了科学依据。此外,通过优化加工参数,研究有望提高钛合金加工过程的整体性能。This study delves into the complexities of tool wear during the machining of Ti3Al2.5V titanium alloy,leveraging numerical simulation methodologies.Given its extensive utilization in the aviation industry and the inherent challenges posed by its machining,this research underscores the criticality of preserving surface integrity to meet the high fatigue durability demands of aircraft components.It highlights the necessity of judiciously selecting machining parameters to mitigate the adverse impacts of tool wear.As the machining process unfolds,tool wear inevitably modifies the tools′geometric contours,influencing essential machining parameters such as force,temperature,and stress.To systematically examine the repercussions of tool wear on these pivotal aspects,a finite element model was meticulously formulated.The outcomes shed light on how tool wear can affect machining efficacy and quality,offering a scientific rationale for the strategic replacement of tools.This,in turn,opens avenues for enhancing the machining performance of titanium alloys by optimizing machining parameters.

关 键 词：Ti3Al2.5V 刀具 磨损 有限元 切削温度 

分 类 号：TH161[机械工程—机械制造及自动化] TG71[金属学及工艺—刀具与模具]