METHOD OF MANUFACTURE OF PARTS WITH TWO HOLLOWS FROM NON-FERROUS METALS AND ALLOYS Russian patent published in 1994 - IPC

Abstract RU 2019360 C1

FIELD: metal machining. SUBSTANCE: method involves shaping thin-walled hollow by one male die and shaping thick-walled hollow with inside ring-shaped projections of desired size by another male die during power stroke of press tool slide block. As slide block returns to its initial position part is put out from male die and the ring-shaped projections are simultaneously removed to calibrate side surface of thick-walled hollow. EFFECT: enhanced operating efficiency. 4 dwg

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RU 2 019 360 C1

Authors

Сhernyshova R.I.

Gel'Fond М.L.

Вukhanovskij V.А.

Кononov V.G.

Dates

1994-09-15—Published

1992-02-26—Filed