№4 (55), 2020. TECHNOLOGIES AND MACHINES OF PROCESSING BY PRESSURE

A.M. Dmitriev, N.V. Korobova

Application of rolls with shaped cavities for forming high-density products from powder steels

In the production of powder steel parts, which have longitudinal ribs in form a wedge-shaped at cross-section of the part, it is considered the molding of a powder mixture containing, in addition to iron powder, alloying component powders is considered. Upon subsequent sintering of the molded part, its material is converted to powder steel. To ensure a high density of the part in its thinnest part, intense shifts between compacted powder particles are created during molding. For the usage of a universal press operating with high efficiency, rollers with figured cavities that rotate around their axes are used as a stamp.

Keywords: steel powder parts, parts of an elongated shape, the longitudinal edges subtle, shaping and sintering, the molding in between the rollers on presses.

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