航空薄壁件铣削加工动力学仿真技术

Dynamic Modelling Technology on Milling Process of Aerospace Thin-Walled Workpiece

薄壁件铣削是航空工业中最常见的加工方式。航空薄壁件铣削工艺系统固有的弱刚性特点易引起切削颤振和变形,极大影响加工质量和效率。研究航空薄壁件铣削加工动力学仿真技术,指导工艺、刀具参数优选,对高质高效加工技术具有重要意义。围绕薄壁件铣削加工动力学仿真中的刀具-主轴系统动力学建模、切削瞬时薄壁件动力学建模及铣削过程动力学建模等技术进行介绍。

Milling of thin-walled workpiece is the most widely used process in aerospace industries.Due to the low rigidity of the milling system,chatter often occurs,which will decrease the machining efficiency and product quality.Thus,it is greatly significant for high performance milling to study the dynamic modelling technics on milling process of aerospace thin-walled workpiece and further to select the process and tool geometry parameters.In this paper,dynamic modelling technics on milling process of aerospace thin-walled workpiece including dynamic modelling the tool-spindle system,the in-process thin-walled workpiece and milling processes are introduced.