Additive Manufacturing of Aerospace Components - II

加性制造(AM)指的是一种新兴的技术，它通过逐层有控制地添加材料来制造3D对象，以产生最终形状或接近最终形状的对象。预计到2025年，这项颠覆性技术将使AM产品在加拿大的市场达到每年约140亿美元，这一市场将在航空航天行业占据重要地位，该行业正在出现一系列例子：商用GE LEAP燃料喷嘴、波音优化结构支架等。航空航天行业在多个方面引领AM创新，旨在了解各种设计过程-微观结构-性能的重大持续研究工作正在全球加速进行。在此背景下，开展了CRIAQ MANU 601项目(2014年1月至2017年12月)，以迅速加深对激光粉床融合和激光焊丝沉积的基础了解。在该计划期间，发现了几个科学和技术知识差距。正是在这种背景下，我们提出了这个新的CRIAQ Manu 1708项目。该项目计划在缺陷特征与失效之间的关系建模、更好地设计零件的几何制造准则、进一步细化零件机械性能与零件建造位置之间的关系、提出一种新的、更完整的零件检测方法等方面进行研究，并继续努力纳入新的轻质材料。现有研究团队的大部分仍然存在：麦吉尔大学、联邦理工学院、CMQ、MDA、HDI、BHTC、BA、PWC、Edmit和Liburdi，NRC作为新的合作伙伴。

Additive Manufacturing (AM) refers to an emerging class of technologies that build 3D objects by the controlled addition of materials in a layer-by-layer fashion to produce objects at or near their final shape. This disruptive technology is forecasted to have a Canadian market for AM products reaching ~$14B/year by 2025 , market to be significant in the aerospace industry, where a series of examples are emerging: commercially used GE LEAP fuel nozzle, Boeing optimised structural brackets, etc. The aerospace industry is leading innovation in AM on several fronts, and significant ongoing research works aimed at understanding the various design-process-microstructure-properties are carried at an accelerated pace worldwide. In this context, the CRIAQ MANU 601 project (Jan 2014 - Dec 2017) has been conducted to quickly develop foundational understanding of laser powder bed fusion and laser wire deposition. During that program, several scientific and technological knowledge gaps were identified. It is in that context that we are proposing this new CRIAQ MANU 1708 project. This project is planned to focus on aspects such as modeling the relationship between defects characteristics and failure, geometrical manufacturing guidelines to better design parts, further refine the relation between part mechanical properties and part built location, to propose a new and more integrated part inspection methodology, and continue the effort in including new lightweight materials. The bulk of the existing research team remains: McGill University, École Polytechnique, CMQ, MDA, HDI, BHTC, BA, PWC, Edmit, and Liburdi, with NRC as a new partner.