METHOD OF MANUFACTURE OF BIMETALLIC PRODUCTS Russian patent published in 1994 - IPC

Abstract RU 2017586 C1

FIELD: bimetallic product manufacture technique. SUBSTANCE: method involves filling hollow cylindrical workpiece with powder, centrifugal scorching, cutting workpiece into desired length pieces and their machining. Novelty is that prior to filling workpiece with powder hemispherical grooves are made on surface of cylindrical workpiece in points of its future cutting. Radius of hemisphere is selected on the basis of preset conditions. Scorching is followed by introduction of centering rod whose diameter is equal to inside diameter of bimetallic product and by swaging of workpiece in axial direction until closing up grooves. EFFECT: enhanced operating capability. 2 dwg, 3 tbl

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RU 2 017 586 C1

Authors

Dorozhkin N.N.

Kashitsyn L.P.

Sosnovskij I.A.

Gafo Ju.N.

Dates

1994-08-15—Published

1991-01-14—Filed