What post-processing steps are typically applied to SLM-printed Nimonic 80A parts?

Hot Isostatic Pressing (HIP)

SLM-printed Nimonic 80A may contain residual porosity due to rapid solidification. Hot isostatic pressing (HIP) applies uniform pressure and heat to eliminate micro-voids and enhance fatigue resistance—essential for turbine blades, combustor parts and thermal shielding components.

Heat Treatment and Phase Optimization

To achieve full γ′ precipitation hardening, printed parts undergo controlled heat treatment and aging cycles. These post-processes strengthen grain boundaries, improve creep resistance and stabilize mechanical properties for long-term use in high-temperature environments.

Precision Machining and Finishing

Critical features such as cooling channels, sealing surfaces and mounting interfaces are refined using EDM or CNC machining. These finishing steps ensure dimensional accuracy and component integrity in high-stress turbine or engine environments.

Inspection and Validation

Every part is validated using nondestructive evaluation and material testing and analysis. Microstructural inspection, X-ray CT scanning and fatigue testing confirm reliability before deployment in critical sectors such as aerospace, power generation and oil and gas.