Material Densification
White paper

Benefits of using HIP for additively manufactured thin-walled, high-performance heat exchangers

Additive manufacturing (AM) of heat exchangers is increasingly popular in aerospace due to its ability to create thin-walled structures with high heat-transfer efficiency. Key materials used include stainless steel, titanium, aluminum, copper, and nickel alloys. However, challenges remain in achieving optimal mechanical properties. Hot Isostatic Pressing (HIP) is an essential post-processing step that addresses these issues by eliminating shrinkage porosity and internal defects, improving fatigue resistance and strength.

Recent advancements in HIP technology now integrate argon gas quenching within the HIP cycle, enabling in-situ solution heat treatment (SHT) and aging during processing. This combined approach enhances productivity, reduces distortion, improves corrosion resistance, and yields a superior surface finish. The whitepaper will explore solutions for various aerospace alloys, with insights from recent trials and studies.

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