[T4] Hot Isostatic Pressing

[17C-T4-03] Fully Coupled and Efficient Simulation of a Hot Isostatic Pressing Furnace with Components

Y. Liu¹, Z. Yan¹, Z. Lv², *J. Li², W. Qi², A. Eklund² (1.Simtec Soft Sweden AB, Sweden, 2.CISRI-HIPEX TECHNOLOGY CO., LTD, China)

Keywords:Hot isostatic pressing, 50% loading, 3D full-scale Computational Fluid Dynamics (CFD) simulation, Heat transfer, Thermal radiation

Hot Isostatic Pressing (HIP) is crucial for densifying and enhancing material properties in aerospace, energy, medical, and additive manufacturing. Understanding part shrinkages and deviations during HIP is vital, making computer simulation indispensable for optimal furnace design and efficient production cycles.

This study employs an innovative, fully coupled, and highly efficient Computational Fluid Dynamics simulation method to model a complete 10-hour HIP cycle, including heating, holding, and cooling phases for a full-scale furnace with 50% loading of titanium alloys. This approach addresses common convergence issues and the time-consuming nature of traditional simulations. The detailed and full-scale 3D calculation provides a comprehensive understanding of thermal gradients, gas flow dynamics, pressure build-up, thermal radiative heat transfer, convective heat transfer, and conjugate heat conduction in solids. The simulated temperature and pressure outcomes show excellent agreement with experimental results, optimizing HIP furnace design and operations by closely replicating real-world conditions