| 钛合金铣削加工表面残余应力有限元仿真 |
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| 引用本文： | 黄尧,牛雪梅,闫献国,陈峙,郭宏,苏杭,白旭.钛合金铣削加工表面残余应力有限元仿真[J].组合机床与自动化加工技术,2020(2):29-33. |
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| 作者姓名： | 黄尧 牛雪梅 闫献国 陈峙 郭宏 苏杭 白旭 |
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| 作者单位： | 太原科技大学机械工程学院;太原科技大学电子信息工程学院 |
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| 基金项目： | 太原科技大学博士启动基金(20182035) |
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| 摘 要： | 为了分析铣削工艺参数对钛合金已加工表面残余应力的影响,根据金属切削有限元分析的相关理论,以钛合金Ti6Al4V为工件材料,建立了铣削加工的有限元模型。采用正交试验设计法对钛合金Ti6Al4V铣削仿真的工艺参数进行优化,并用极差法分析不同的铣削速度、铣削深度、铣削路径对钛合金Ti6Al4V工已加工表面残余应力的影响。研究表明:在钛合金Ti6Al4V铣削过程中,对工件已加工表面残余应力影响因素由小到大依次为:铣削深度<铣削路径<铣削速度,切削深度对已加工表面残余应力影响较小,铣削速度对已加工表面残余应力影响最大;在研究范围内,随着铣削速度的增大,已加工表面残余应力逐渐增加。
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| 关 键 词： | 钛合金 残余应力 有限元仿真 正交试验法 铣削路径 |
Finite Element Simulation of Residual Stress in Milling of Titanium Alloy |
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| HUANG Yao,NIU Xue-mei,YAN Xian-guo,CHEN Zhi,GUO Hong,SU Hang,BAI Xu.Finite Element Simulation of Residual Stress in Milling of Titanium Alloy[J].Modular Machine Tool & Automatic Manufacturing Technique,2020(2):29-33. |
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| Authors: | HUANG Yao NIU Xue-mei YAN Xian-guo CHEN Zhi GUO Hong SU Hang BAI Xu |
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| Affiliation: | (School of Mechanical Engineering,Taiyuan University of Science and Technology,Taiyuan 030024,China;School of Electronic Information Engineering,Taiyuan University of Science and Technology,Taiyuan 030024,China) |
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| Abstract: | In order to analyze the influence of milling process parameters on the residual stress of the machined surface of titanium alloy,a finite element model of milling process was established based on the theory of finite element analysis of metal cutting and Ti6Al4V as workpiece material.The orthogonal experimental design method was used to optimize the process parameters of Ti6Al4V milling simulation.The effects of different milling speed,depth and path on the residual stress on the machined surface of Ti6Al4V workpiece were analyzed by range method.The results show that in the milling process of Ti6Al4V titanium alloy,the influence factors of the machined surface residual stress from small to large are as follows:milling depth
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| Keywords: | titanium alloy residual stress finite element simulation orthogonal test method milling path |
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