HIP中の焼結変形挙動に関する研究

概要

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Hot isostatic pressing (HIP) is a manufacturing process which forms high quality products from ceramic or metal powders at high temperature and high pressure. The most important problem for the HIP process is to get densified near-net-shape products. Because the sintering behavior during HIP depends on many process parameters, analytical method is greatly required to select the optimum process variables without trial and error procedures.<BR>In this paper, governing equations for heat conduction, densification rate and shape change are presented to predict the sintering deformation behavior during HIP. Computer analysis makes clear the relation between temperature, density distributions and sintering deformation behavior. Measured results of density and shape changes in practical HIP equipment show a good agreement with the calculated results.
社団法人粉体粉末冶金協会の論文