METHOD FOR MAKING POROSITY FREE POWDERED PRODUCTS Russian patent published in 2001 - IPC

Abstract RU 2168392 C2

FIELD: powder metallurgy, possibly manufacture of powdered parts subjected to loading. SUBSTANCE: method comprises steps of cold pressing, heating, hot compaction of blank and subsequent three dimensional deforming. Hot compaction is realized until achieving remaining porosity 1-2%; subsequent deforming is performed at process of further pressing stage. EFFECT: elimination of remaining porosity, enhanced mechanical properties of powdered products due to improved joining of contact surfaces.

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RU 2 168 392 C2

Authors

Egorov S.N.

Sinel'Shchikov V.V.

Dybov Ju.V.

Egorov M.S.

Sinel'Shchikov E.V.

Dates

2001-06-10Published

1998-12-28Filed