Additive Manufacturing Aluminum Heat Exchanger (AMAHE)

航空工业正在推动下一代飞机的更轻，更高效的飞机。实现这一目标的一种方法是将换热器设计集成到越来越多的飞机部件中。热交换器（HE）用于飞机中，通过集成复杂的冷却通道和腔体将热量从关键部件转移出去，从而促进部件用于更高的工作温度。到目前为止，HE设计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之间的一个合作项目，利用激光粉末床融合（LPBF）增材制造来解决与传统制造技术相关的问题，以研究HE集成组件。LPBF是一种逐层生产技术，允许设计人员自由生产以前无法想象的零件，而无需二次加工。这种技术非常适合于常规飞机部件的制造和HE设计。逐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，以最大化表面积，从而最大化热传递。该项目涉及由P&WC设计定制的热交换器组件，然后将在麦吉尔大学进行打印和表征，以阐明这种方法在未来技术创新中的潜力。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，该合金成分具有专为HE航空航天环境定制的特性。该工作项目将培训2名工程硕士学生，并由Brochu教授团队的一名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.