Additive Manufacturing of Aerospace Components - II

增材制造（AM）是指一种新兴的技术，它通过以一层一层的方式控制材料的添加，以生产达到或接近最终形状的物体，从而构建3D物体。据预测，到2025年，这种颠覆性技术将在加拿大的增材制造产品市场达到每年140亿美元，在航空航天工业中占有重要地位，其中一系列例子正在出现：商用GE LEAP燃料喷嘴，波音优化结构支架等。航空航天工业在增材制造的几个方面都处于领先地位，并且正在进行的旨在了解各种设计-工艺-微结构-性能的重大研究工作正在全球范围内加速进行。在此背景下，开展了CRIAQ MANU 601项目（2014年1月- 2017年12月），以快速发展对激光粉末床熔合和激光丝沉积的基础认识。在该计划期间，确定了若干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。该项目计划重点研究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指南、进一步细化零件力学性能与零件制造位置之间的关系、提出一种新的更综合的零件检测方法，并继续努力包括新的轻量化材料。现有研究团队的大部分仍然存在：麦吉尔大学，École Polytechnique， 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.