High performance machining of flexible aerospace parts

机加工是制造机身零件的关键部分，但这些过程的生产率受到工件高度灵活性的限制，这可能导致振动、动态挠曲和颤振，并导致工件或机床的表面光洁度下降和损坏。该项目旨在最大限度地减少一些薄壁铝机身部件的加工时间，而不会引起颤振或违反表面光洁度和尺寸公差。UVic的先进制造（UVICAM）实验室将采用刀具选择、主轴转速选择、进给调度和刀具路径规划策略以及高速加工技术，为维京航空北萨尼奇工厂生产的三个机身部件进行铣削加工。颤振自由参数将通过实施新开发的有限带建模方法和对工件进行冲击锤试验来确定。目的是增强已开发的建模方法来解决重要的工业问题，并验证这种新技术在提高加拿大制造业生产率方面的效率。

Machining is a critical part of manufacturing airframe parts, but productivity of these processes is limited bythe high flexibility of the workpiece, which may cause vibrations, dynamic deflections, and chatter and lead topoor surface finish and damage to the workpiece or the machine tool. This project aims to minimize themachining time of some thin-walled aluminum airframe components without causing chatter or violating thesurface finish and dimensional tolerances.UVic's Advanced Manufacturing (UVICAM) laboratory will adapt tool selection, spindle speed selection,feedrate scheduling, and toolpath planning strategies as well as High Speed Machining technology for themilling process of three airframe parts that are being produced at Viking Air's North Saanich plant. Chatter freeparameters will be identified by implementing the newly developed Finite Strip Modeling method, and byconducting impact hammer tests on the workpiece. The objective is to enhance the developed modelingapproach to solve important industrial problems, also to verify the efficiency of this novel technology inincreasing the productivity of Canadian manufacturing industry.