Additive Manufacturing Aluminum Heat Exchanger (AMAHE)

航空业正在推动下一代飞机向更轻、更高效的方向发展。实现这一目标的一种方法是将热交换器设计整合到越来越多的飞机部件中。热交换器(HE)用于飞机上，通过集成复杂的冷却通道和型腔将热量从关键部件转移出去，便于部件在更高的工作温度下使用。到目前为止，他的设计一直受到传统制造技术的限制。在这里，我们介绍了加拿大普惠公司和麦吉尔大学的一个合作项目，该项目利用激光粉床融合(LPBF)添加剂制造来抵消与传统制造技术相关的问题，以研究HE集成元件。LPBF是一种逐层生产技术，它允许设计者自由地生产以前无法想象的部件，而不需要二次加工。这项技术非常适合制造HE设计并将其包含在传统飞机部件中。层层生产允许结合复杂的冷却通道、薄壁部分和定制的表面粗糙度，以最大限度地增加表面积，从而实现传热。这个项目涉及P&WC公司定制的热交换器部件的设计，然后将在麦吉尔大学打印并进行特征描述，以阐明这种方法对未来技术创新的潜力。其次，麦吉尔大学将研究一种正在申请专利的合金成分的潜力，该合金成分具有专门为HE航空航天环境量身定做的特性。该工作项目将培训2名工程硕士学生，将由Brochu教授团队中的一名RA和一名技术人员协助。

The aviation industry is pushing the next generation of aircrafts for lighter and more efficient planes. One approach to achieve this goal is the integration of heat exchanger designs into more and more aircraft components. Heat exchangers (HE) are used in aircrafts to transfer heat away from critical components by integrating complex cooling channels and cavities, facilitating the parts to be used to higher operating temperatures. Up until now HE designs have been limited by the constraints of traditional manufacturing techniques. Here we present a collaborative project between Pratt & Whitney Canada and McGill University to utilise Laser Powder Bed Fusion (LPBF) Additive manufacturing to counteract the issue associated with traditional manufacturing techniques to study HE-integrated component. LPBF is a layer by layer production technique which allows designers freedom to produce previously unimaginable parts without the need for secondary machining. This technique is perfectly suited to the manufacturing and inclusion of HE designs into conventional aircraft components. The layer by layer production allows the incorporation of complex cooling channels, thin wall sections and tailored surface roughness to maximise surface area, and therefore heat transfer. This project involves the design of bespoke heat exchanger components by P&WC, which will then be printed and characterised at McGill University to elucidate the potential of this methodology for future technological innovation. Second to this, McGill University will investigate the potential of a patent pending alloy composition with specifically tailored properties for HE Aerospace environments. The work project will train 2 M.Eng students, which will be assisted by one RA and one technician from Prof. Brochu's team.