高精密微铣削再生颤振稳定域影响机制研究  

Influence mechanismon regenerative chatter stability in high- precision micro- milling process

作　　者：曹自洋[1] 李华[1] 刘威[1] 殷振[1] 

机构地区：[1]苏州科技学院机械工程学院,江苏苏州215009

出　　处：《制造技术与机床》2015年第8期34-37,共4页Manufacturing Technology & Machine Tool

基　　金：国家自然科学基金资助项目(51305286);苏州市科技计划资助项目(SYG201244);"青蓝工程"资助项目

摘　　要：在构建微铣削颤振稳定域解析模型的基础上,采用数值分析和微铣削实验相结合的方法,深入研究模态刚度、模态阻尼、固有频率等工艺系统动力学特性参数、铣削力系数和铣刀齿距等因素对再生颤振稳定域的影响规律,并评价各因素对最小极限切削深度的影响程度。该研究为微三维结构的高速、高精度铣削加工提供了科学的理论依据和技术支撑。To begin with, the chatter stability model of micro - milling process are constructed. Furthermore, the influence of system dynamics parameters such as machine tool stiffness, modal damping, natural fre- quency, and other process parameters such as milling force coefficients, cutter teeth spacing on regener- ative chatter stability in micro - milling is studied deeply by the combination of numerical analysis and micro - milling experiments. The impact of various factors on the minimum limit cutting depth is also e- valuated. The research may provide the scientific theory basis and technical support for high - speed and high -precision machining of micro three- dimensional structures.

关 键 词：高精密微铣削 再生颤振 稳定域 影响机制 

分 类 号：TG501[金属学及工艺—金属切削加工及机床]