Renata S. Engel

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Implementation of an accurate sintering model into a finite element simulation program can significantly improve Powder Metallurgy (P/M) part properties and processing efficiency. The densification and creep behavior of stainless steel powders during free sintering has been simulated and the material model has been implemented by linking user subroutines to(More)
In general, the shrinkage of the powder compact during the sintering process is not uniform due to the non-uniform density distribution of the powder compact during the compaction process. We have developed an optimization program for the powder compaction and sintering processes. The optimization program is composed of finite element analysis and(More)
Many soil constitutive models have been studied for their applicability to the powder compaction simulation process. However most of the parameters to define these models are determined by highpressure hydrostatic compression and triaxial tests requiring a high pressure setup. This limits the industrial usability of these simulations to determine density(More)
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