Considerations during pulse laser based additive manufacturing of high melting point materials

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。据预测，到2025年，这项颠覆性技术在加拿大的AM产品市场将达到约140亿美元/年，这将在航空航天行业产生重大意义，该行业正在出现一系列例子：商用的GE LEAP燃料喷嘴、波音优化的结构支架等。了解AM如何处理新的化学物质是该领域的一个关键挑战。在这方面，雷尼绍和布罗楚教授是推动技术壁垒的不同项目的合作伙伴。在目前的提案中，该团队建议研究AM加工中涉及的基本方面，如粉末表征、凝固和加工以及残余应力的发展，以定义打开新AM材料，特别是高温高温合金的加工包络。Brochu教授还将通过结合AM各种投入之间的竞争性但全球性的互动来增加他的研究组合这项研究的传播将有助于提高加拿大在所有行业采用AM技术方面的地位，这些行业以雷西豪为设备供应商，以加拿大雷尼绍为技术支持。此外，该项目将培训六名具备AM知识的HQP，强制采用这种颠覆性技术。

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 foretasted to have a Canadian market for AM products reaching ~$14B/year by 2025, which will be significant in the aerospace industry, where a series of examples are emerging: commercially used GE LEAP fuel nozzle, Boeing optimized structural brackets, etc. Understanding how new chemistry can be processed by AM is a key challenge in the field. In that respect, Renishaw and Prof. Brochu are partners in different programs to push the technological barriers. In the current proposal, the team proposes to investigate fundamental aspects involved in AM processing, such as powder characterization, solidification and processing, and the development of residual stresses, to define processing envelops to open new AM materials, specifically high temperature Superalloys. Prof. Brochu will also augment his research portfolio by combining competitive but global interactions between the various inputs of AM. The dissemination of the research will contribute to improve Canada's position in adoption rate of AM technologies for all industries having Rensihaw as equipment supplier and Renishaw Canada as technology support. Moreover, this project will train six AM-literate HQPs, mandatory to adopt this disruptive technology.