粉体成形プロセスのシミュレーション [in Japanese] Simulation of Powder Behaviour during Compaction Based on Continuum and Discrete Modelling [in Japanese]
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In powder forming processes, the behaviour of powders during compaction, such as the mechanisms of density increase, density distribution, evolution of anisotropy, the shape of compacts in isostatic compaction, etc. significantly influence the quality of the products, dimensional and geometrical accuracy and material consumption. Further, the compacts that have been compacted at room temperature are subject to a sintering process; they undergo dimensional and geometrical change during the process; these are affected by the previous compaction process and density distribution. In recent years, the demand has been increasing for accuracy in the dimensions and shapes of products. Simulation of compaction behaviour of powders is, thus, of great importance for near net shape production. To simulate the behaviours of powders or granular materials, there are two approaches: one is to treat the powder based on continuum mechanics, and the other is to observe the movement of individual particles. In this article, we shall overview the state of the art regarding both types of simulation.
- The Review of High Pressure Science and Technology
The Review of High Pressure Science and Technology 8(4), 260-267, 1998-11-01
The Japan Society of High Pressure Science and Technology