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Effect of Compaction Scheme on Property Distribution for Cumulative Charge Facings Formed from a Heterogeneous Powder Composite

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Powder Metallurgy and Metal Ceramics Aims and scope

Abstract

An experimental and numerical (finite element method) study is carried out for the effect of forming scheme on property distribution for cumulative charge facings made from composite heterogeneous powder material. An experimental procedure is developed for studying powder particle flow kinetics. It is shown that use of composite punches and partition of the moulded material into a number of sub-divisions with their successive compaction achieves a more uniform density distribution for an article. It is demonstrated how the direction of the force of friction on the die walls during compaction affects the compaction of articles with faces that are not perpendicular to the direction of the pressing. The results obtained make it possible to select the optimum compaction regime taking account of production features connected with powder material composition as well as service characteristics.

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REFERENCES

  1. T. A. Epifantseva, I. D. Martyukhin, O. V. Mikhailov, and G. G. Serdyuk, “Features of density distribution in axially pressed porous articles bounded by surfaces inclined to the pressing direction. Numerical analysis,” Poroshk. Metall., Nos. 5-6, 43-52 (1997).

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  2. G. G. Serdyuk and O. V. Mikhailov, “Mathematical modelling of plastic deformation of powder materials with presence of a free surface,” Poroshk. Metall., No. 4, 18-22 (1986).

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Authors and Affiliations

  1. Institute for Problems of Materials Science, National Academy of Sciences of Ukraine, ul. Krzhizhanovskogo 3, Kiev 142, 03142, Ukraine

    Ivan D. Martyukhin & Gennadii G. Serdyuk

Authors
  1. Ivan D. Martyukhin
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  2. Gennadii G. Serdyuk
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Martyukhin, I.D., Serdyuk, G.G. Effect of Compaction Scheme on Property Distribution for Cumulative Charge Facings Formed from a Heterogeneous Powder Composite. Powder Metallurgy and Metal Ceramics 39, 540–544 (2000). https://doi.org/10.1023/A:1011359626701

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  • DOI: https://doi.org/10.1023/A:1011359626701

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