钛合金TA7铣削加工特性研究  

Machinability Analysis of Titanium Alloy TA7 During Milling Process

作　　者：何绍川 李晗[2] 安庆龙[2] 陈明[2] HE Shaochuan;LI Han;AN Qinglong;CHEN Ming(AECC Guizhou Liyang Aviation Power Co.,Ltd.,Guiyang 5500141,China;School of Mechanical and Power Engineering,Shanghai Jiao Tong University,Shanghai 200240,China)

机构地区：[1]中国航发贵州黎阳航空动力有限公司,贵阳550014 [2]上海交通大学机械与动力工程学院,上海200240

出　　处：《组合机床与自动化加工技术》2024年第2期134-140,共7页Modular Machine Tool & Automatic Manufacturing Technique

摘　　要：TA7钛合金高强度和低热导率的特点使其成为典型的难加工材料。为了研究钛合金TA7的铣削加工特性,开展了钛合金TA7铣削实验,研究切削参数对TA7切削特性的影响规律。基于MINITAB分别建立了切削力、表面粗糙度与切削参数的回归模型,并分析了切削力、表面粗糙度、残余应力与切削参数的响应关系,揭示了切削参数对切削力时域和频域信号、已加工表面形貌与残余应力影响规律。TA7 titanium alloy has good thermal stability and oxidation resistance at high temperature,so it has broad prospects in aviation,aerospace,ships,cryogenic engineering and other fields.However,its high strength and low thermal conductivity make it a typical difficult-to-machine material.The titanium alloy TA7 milling experiment was carried out to study the influence of cutting data on the cutting characteristics of TAN.Based on MINITAB,the regression models of cutting force,surface roughness and cutting data were established,and the response relationship between cutting force,surface roughness,residual stress and cutting data was analyzed.The influence of cutting data on cutting force time domain and frequency domain signal,machined surface morphology and residual stress is revealed.

关 键 词：钛合金TA7 切削力 切削振动 表面形貌 残余应力 

分 类 号：TH16[机械工程—机械制造及自动化] TG64[金属学及工艺—金属切削加工及机床]