High performance machining of flexible aerospace parts

柔性航空航天零件的高性能加工

• 批准号: 513392-2017
• 负责人: Ahmadi, Keivan
• 金额: $ 1.82万
• 依托单位: University of Victoria
• 依托单位国家: 加拿大
• 项目类别: Engage Grants Program
• 财政年份: 2017
• 资助国家: 加拿大
• 起止时间: 2017-01-01 至 2018-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=640395
• 关键词: performance; machining; flexible; aerospace; parts

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.

机加工是制造飞机机体零件的关键部分，但这些工艺的生产率受到工件高柔性的限制，这可能会引起振动、动态偏转和颤振，导致表面光洁度差，并损坏工件或机床。该项目旨在最大限度地减少某些薄壁铝合金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）实验室将适应刀具选择，主轴速度选择，进给速度调度，和刀具路径规划策略以及高速加工技术的铣削过程中的三个机身部件，正在生产的维京海盗航空公司的北萨尼奇工厂。颤振参数将通过实施新开发的有限条建模方法，并通过对工件进行冲击锤试验来确定。其目的是提高发达modelingapproach解决重要的工业问题，也验证了这种新技术的效率，提高加拿大制造业的生产力。