钛合金机翼翼根对接缘条铣削变形控制技术研究  

Study on milling deformation control technology of titanium alloy wing root flange

作　　者：章正伟[1] 李旭龙 傅云 ZHANG Zhengwei;LI Xulong;FU Yun(Zhejiang Institute of Communications,Hangzhou 311112,CHN;Zhejiang Xizi Aviation Industry Co.,Ltd.,Hangzhou 311222,CHN)

机构地区：[1]浙江交通职业技术学院,浙江杭州311112 [2]浙江西子航空工业有限公司,浙江杭州311222

出　　处：《制造技术与机床》2019年第10期23-27,共5页Manufacturing Technology & Machine Tool

基　　金：2017年度高校访问工程师“校企合作项目”(FG2017011);杭州市重大科技创新专项(20172011A043)

摘　　要：钛合金机翼翼根对接缘条类工件结构尺寸大,存在复杂难加工曲面和薄壁型腔,截面形状复杂,装夹困难,加工过程容易变形,切削稳定性差。针对这一问题,借助于有限元分析方法,对钛合金机翼翼根对接缘条的加工变形趋势进行分析仿真,从而选择适宜的工件加工装夹方案。并结合机床-刀具系统动态特性分析,对缘条加工的切削参数进行了确定。通过试验结果表明,该方案可显著提高工件在加工过程中的刚度,减小由于装夹不当引起的工件变形,从而提高加工精度,并对加工所用切削参数进行了验证,提高了切削稳定性,为同类工件加工提供参考。titanium alloy wing root flanges have large structure dimensions,complex and difficult to machined curved surfaces,thin walled cavities and complex section shapes.The parts have a difficult in clamping,an easy to deformation during machining and a poor cutting stability.In view of this problems,to analyze the machining deformation trend of titanium alloy wing root flanges based on finite element simulation,to select the compatible clamping schemes.And Combining with dynamic property analysis of machine-cutter system to ensure the cutting parameters of flanges machining.The test results show that the clamping schemes can obviously improve the processing stiffness,reduce the deformation when clamping is incorrect and improve accuracy.Then verify the cutting parameters,improve the stability and provide reference for the similar products.

关 键 词：飞机机翼 钛合金 缘条 切削稳定性 加工变形 动态特性 

分 类 号：TG506[金属学及工艺—金属切削加工及机床]