Hot Isostatic Pressing of Ultrasonic Additive Manufacturing Liquid Cold Plate Heat Exchangers

The aim of this paper is to discuss the improved performance of an AA 6061 Ultrasonic Additive Manufacturing (UAM) heat exchanger device through the use of traditional hot isostatic pressing (HIP) and combined HIP and T6 heat treatment in a rapid quenching HIP. The paper begins by explaining how a UAM heat exchanger device is manufactured. This manufacturing includes HIP heat treatments performed by Quintus Technologies. These heat exchangers were then characterized at NASA JPL using helium leak and hydraulic burst pressure testing. Tensile testing was also carried out to help inform and corroborate burst pressure results.NASA’s Jet Propulsion Laboratory (JPL) manages planetary and interplanetary missions within our solar system. For many missions that JPL oversees, numerous critical liquid cold plate heat exchanger devices are required to regulate the sensitive, on-board electronic systems from temperature extremes experienced in space, on planets/moons, or in various atmospheres. These devices can be small (76 mm X 76 mm) or large (1 m X 1 m).

本研究旨在探讨通过采用传统热等静压（hot isostatic pressing, HIP）工艺，以及在快速淬火热等静压（rapid quenching HIP）工艺中结合热等静压与T6热处理（T6 heat treatment），提升AA 6061铝合金超声增材制造（Ultrasonic Additive Manufacturing, UAM）换热器装置的性能。本文首先阐述了UAM换热器装置的制造流程，该制造工序包含由Quintus Technologies实施的HIP热处理工艺。随后，美国国家航空航天局喷气推进实验室（National Aeronautics and Space Administration Jet Propulsion Laboratory, NASA JPL）采用氦泄漏检测与液压爆破压力测试对这批换热器开展了性能表征工作，同时辅以拉伸测试以辅助分析并验证爆破压力测试结果。
美国国家航空航天局（National Aeronautics and Space Administration, NASA）喷气推进实验室（Jet Propulsion Laboratory, JPL）负责太阳系内的行星与行星际探测任务。对于JPL所监管的诸多任务而言，亟需大量关键的液冷板换热器装置，用于为星载、行星/月球表面或各类大气环境中的敏感机载电子系统调节温度，使其免受极端温度的影响。此类装置的尺寸范围涵盖小型（76 mm × 76 mm）至大型（1 m × 1 m）不等。