用扫描电子显微镜研究超声波振动车削抑制颤振的微观机制  

SEM Approach to the Reducing Chatter Mechanism of Ultrasonic Vibration Turning

作　　者：于劲[1] 

机构地区：[1]中国科学院长春光学精密机械研究所应用光学国家重点实验室

出　　处：《电子显微学报》1992年第6期468-473,共6页Journal of Chinese Electron Microscopy Society

摘　　要：作者应用AMRAY-1000B型扫描电镜(SEM)揭示出超声波振动车削抑制颤振的微观本质。借助于SEM提供的微观信息,作者认为Lt效应只源于脉冲切削力波形的观点带有局限性。Lt效应不仅存在于分离型超声波振动车削,而且还存在于不分离型超声波振动车削。另外,本文探讨了Lt效应的强弱与超声波振动车削抑振效果的关联性。This paper has brought to light the microcosmic mechanism of ultrasonic vibration turning(UVT)reducing chatter bay means of AMRAY-1000B Scanning Electron Microscope(SEM). The view that Lt effect comes from the pulse cutting force possesses of limitations according to the author's observing with SEM. Lt effect ex-ists not only in separating type LIVT, but also in unseparating type one. In addition, I will discuss the correla-tions between Lt effect and reducing chatter effect of UVT.

关 键 词：超声波振动 车削 Lt效应 显微镜 

分 类 号：TG510.65[金属学及工艺—金属切削加工及机床]