粉末焼結体の加工に関する力学とその応用

概要

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The theory, already proposed by the authors, is modified. A constant stress-strain curve is obtained for the matrix metal from simple compression of sintered copper with different density ratios.<BR>From the theory the relationship between the density ratio and compressive strain is obtained for the case of simple compression and compared with the experimental results for sintered copper.<BR>By introducing the concept of a reduced pressure, that is, tool pressure divided by instantaneous flow stress, it is possible to develop a generalised curve of density ratio versus reduced pressure which may have some general applicability to closed die compression of sintered metals. This curve is utilized to obtain a relationship between density ratio and tool pressure, being compared with the experimental results for sintered copper.
社団法人粉体粉末冶金協会の論文