超精密车削出现局部振纹的诊断及消除  

Diagnosis and elimination of local vibration in ultra-precision turning

作　　者：余纬[1] 雷艳华[1] 刘龙斌[1] YU Wei;LEI Yanhua;LIU Longbin(Institute of Machinery Manufacturing Technology,China Academy of Engineering Physics,Mianyang 621900,CHN)

机构地区：[1]中国工程物理研究院机械制造工艺研究所,四川绵阳621900

出　　处：《制造技术与机床》2019年第4期141-143,共3页Manufacturing Technology & Machine Tool

摘　　要：针对超精密车床,在车削发生45°斜面和圆弧面时产生局部振纹,通过优化工艺参数、改变装夹方法、消除振动源、去除激励等手段,使表面轮廓度明显改善,粗糙度恢复到6 nm以内。Under ultra-precision turning conditions, the factors that may affect the process goals increase or even overlap with each other. In the presence of 45°bevel and circular surface local vibration pattern, by optimizing the process parameters, changing the clamping method, eliminating the vibration source, removing the excitation and other means to make the surface profile significantly improved, the surface roughness returned to 6nm or less.

关 键 词：超精密 振动 激励 粗糙度 

分 类 号：TB492[一般工业技术]