Hot Isostatic Pressing (HIP) has been used for over 30 years in industrial applications, especially to produce near net shape components with improved material properties. In order to achieve the desired component shape after HIP, the densification process itself and the influence of initial powder distribution in the capsule should be well understood. The aim of this work is to simulate the densification and predict the final shape of a component after HIP considering an inhomogeneous initial powder distribution. A constitutive model first presented by Abouaf and coworkers [1,2] has been integrated into the FEM solver ABAQUS by an in-house developed CREEP subroutine. Numerical studies have been performed based on the material parameters published for 316LN stainless steel powder. Several case studies investigating different HIP products and the possible influence of initial powder distribution on the final shape of these components are represented.
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