Additive Manufacturing of Aerospace Components - II

增材制造（AM）是指通过以逐层方式控制添加材料来构建3D对象以生产最终形状或接近最终形状的对象的新兴技术。据预测，到2025年，这种颠覆性技术将使加拿大AM产品市场达到约140亿美元/年，这在航空航天行业中具有重要意义，其中出现了一系列例子：商业使用的GE LEAP燃料喷嘴，波音优化的结构支架等。航空航天工业在几个方面引领增材制造的创新，并且在世界范围内以加速的步伐进行旨在理解各种设计-工艺-微结构-性能的重要的正在进行的研究工作。在此背景下，CRIAQ MANU 601项目（2014年1月至2017年12月）已经开展，以快速发展对激光粉末床熔合和激光线沉积的基础理解。在该方案期间，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。该项目计划重点关注以下方面，如缺陷特征和故障之间的关系建模，几何制造指南，以更好地设计零件，进一步完善零件机械性能和零件制造位置之间的关系，提出一种新的和更集成的零件检测方法，并继续努力包括新的轻质材料。现有研究团队的大部分仍然是：麦吉尔大学，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.