NSERC/P&WC Industrial Research Chair in Virtual High Performance Machining

NSERC/P

• 批准号: 260683-2012
• 负责人: Altintas, Yusuf
• 金额: $ 6.41万
• 依托单位: University of British Columbia
• 依托单位国家: 加拿大
• 项目类别: Industrial Research Chairs
• 财政年份: 2015
• 资助国家: 加拿大
• 起止时间: 2015-01-01 至 2016-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=591600
• 关键词: NSERC; P&WC; Industrial; Research; Chair

The objective of modern manufacturing is to produce costly parts accurately and most economically at first trial on aerospace production floors. The first two terms of the Chair saw the development of the virtual 2 ½- axis milling and 5-axis flank milling technologies, which have since been transferred to industry. In the third term, the Chair's research will focus on the technologies used in 5-axis ball end milling of gas turbine blades. A generalized, reconfigurable and modular kinematic model of 5-axis machine tools will be modeled for virtual testing of blade machining ahead of costly capital investments. The tool paths will be smoothed to avoid discontinuities in the axis velocities along five axis paths. The contouring errors around the sharp curvatures of blades will be predicted and compensated based on the mathematical model of the machine tool. The time varying structural dynamics of the blade along the tool path will be modeled, and integrated into the Virtual Machining System to predict cutting forces, torque, power, vibrations and dimensional form errors during 5-axis ball-end milling of blades. The depth and width of cuts, spindle speeds and feed rates will be optimized, leading to the most economical yet accurate machining of costly parts. When completed, the Chair will achieve a science-based simulation and optimization system to predict the behaviour of machine tools and the five-axis virtual ball end milling of flexible blades. The system has a wide application in the aerospace, die and mold machining industry worldwide. The Chair is sponsored by NSERC and Pratt & Whitney Canada (P&WC) Corporation. P&WC is a world leader in the design and manufacturing of small gas turbine engines, and has a significant number of complex 3- to 5-axis machining applications. This research draws additional support and collaboration from major national and international companies and research centres worldwide. The findings will be published in open literature, and the technology will be disseminated to industry through Virtual Machining Software and the training of graduate students and practicing engineers.

现代制造业的目标是在第一次试验时就能准确地和最经济地生产出昂贵的零件 在航天生产车间主席的前两个任期见证了虚拟2 ½轴的发展 铣削和5轴侧铣技术，这些技术已被转移到工业领域。在第三个任期， 该项目的研究重点是燃气涡轮机叶片的五轴球头铣削技术。 建立了通用的、可重构的、模块化的五轴机床运动学模型， 在昂贵的资本投资之前进行叶片加工的虚拟测试。刀具路径将被平滑，以避免 沿沿着五个轴路径的轴速度不连续。尖曲率周围的轮廓误差 基于机床的数学模型预测和补偿刀片。的时间 将对叶片沿着刀具路径的不同结构动力学进行建模，并将其集成到虚拟 预测切削力、扭矩、功率、振动和尺寸形状误差的加工系统 5-轴球头铣削刀片。切削深度和宽度、主轴速度和进给速度将得到优化， 从而实现对昂贵部件的最经济而又精确的加工。完成后，主席将实现 一个基于科学的仿真和优化系统，用于预测机床和五轴机床的性能。 柔性叶片的虚拟球头铣削。该系统在航空航天、模具等领域有着广泛的应用 世界范围内的机械加工业。 主席由NSERC和普惠加拿大（P&WC）公司赞助。P&WC是一个世界 在小型燃气涡轮机发动机的设计和制造方面处于领先地位，并拥有大量复杂的 3-到5轴加工应用。这项研究得到了主要研究人员的额外支持和合作。 国家和国际公司以及世界各地的研究中心。调查结果将在公开 文献，该技术将通过虚拟加工软件和 培养研究生和实习工程师。