For precise property control of sintered products, it is important to know the powder
characteristics, especially the packing density of the powder. In a previous work, we developed a
packing simulation program that could make a packed bed of spherical particles having particle size
distribution. In order to predict the packing density of the actual powder that consisted of nonspherical
particles, we combined the packing simulation with a particle shape analysis. We
investigated the influence of the particle size distribution of the powder on the packing density by
executing the packing simulation based on particle size distributions of the actual milled chromium
powders. In addition, the influence of the particle shape of the actual powder on the packing density
was quantitatively analyzed. A prediction of the packing density of the milled powder was
attempted with an analytical expression between the particle shape of the powder and the packing
simulation. The predicted packing densities were in good agreement with the actual data.