Machining effects on part integrity and life of aircraft materials

航空航天产品的设计、制造和维护是魁北克和加拿大经济和社会发展的基石。2009年，超过7.8万个加拿大工作岗位与航空航天行业有关，其中45%来自魁北克。这些高技术工作岗位为我省和我国的生活质量和经济增长做出了贡献。为了保持和增加这些有价值的工作，有必要开发加拿大在这一领域的技术和诀窍。这一研究项目的目标是在不影响飞机性能的情况下，为开发有效和可靠的制造方法做出贡献，从而减轻飞机的重量。该项目将致力于改进机械加工工艺和机械加工航空部件的质量，包括燃气轮机和起落架的部件。研究工作包括对制造过程和材料的机械行为进行仔细检查。主要研究两个方面：1)车削过程的建模和2)材料疲劳行为的预测。最终，这将导致更轻、更坚固和更可靠的部件的生产，从而减轻飞机的重量和燃料消耗。这种尊重环境的发展将增加加拿大航空航天工业的竞争力。负责该项目的研究团队将依靠来自两家主要飞机零部件制造商--普惠加拿大公司和HéRoux Devtek的工程师和科学家的专业知识。这些合作伙伴拥有坚实的专业背景和公认的领导力，将指导研究努力走向原创和实用的解决方案。一个由来自蒙特利尔四所大学的世界级学术研究人员组成的多学科团队将领导研究工作。从事该项目的学生将通过学术团队成员的直接培训以及与行业合作伙伴的合作获得基本的技术和专业技能，使他们成为进入加拿大航空航天行业并加强加拿大作为航空航天制造领导者的角色的理想人选。

Design, manufacturing and maintenance of aerospace products are cornerstones of the economy and social development of Quebec and Canada. In 2009, more than 78 000 Canadian jobs were related to the aerospace industry from which 45% are in Quebec. These high technology jobs contribute to the quality of life and the economic growth of our province and our country. To maintain and increase these valued jobs, it is necessary to develop Canadian technologies and know-how in this field. The goal of this research project is to contribute to the development of effective and reliable manufacturing methods leading to the weight reduction of aircraft without compromising their performance. The project will address improvement of machining processes and of the quality of machined aerospace components, including parts for gas turbines and landing gears. The research efforts involve a close examination of the manufacturing process and of the mechanical behavior of materials. Two main topics will be studied: 1) the modeling of the turning process and 2) the prediction of the material fatigue behavior. Ultimately, this will lead to the production of lighter, stronger and more reliable components, reducing the weight and the fuel consumption of aircrafts. Such developments, respectful of the environment, will increase the competiveness of the Canadian aerospace industries. The research team carrying this project will count on the expertise of engineers and scientists from two main aircraft component manufacturers, Pratt & Whitney Canada and Héroux Devtek. These partners have a solid professional background and a well-recognized leadership that will guide the research efforts toward original and practical solutions. A multidisciplinary team of world-class academic researchers from four universities located in Montreal will lead the research efforts. Students working on this project will obtain essential technical and professional skills through direct training from the academic team members, but also from collaborations with the industry partners, making them ideal candidates to enter Canadian aerospace industries and strengthen Canada's role as a leader in aerospace manufacturing.