METHOD FOR SQUEEZING END PORTIONS OF TUBE BLANKS Russian patent published in 1998 - IPC

Abstract RU 2122914 C1

FIELD: plastic metal working, namely forming parts from tubular blanks, possibly in airplane manufacture, ship building and allied industry branches. SUBSTANCE: method comprises steps of pushing tubular blank into die, feeding grease in gap between outer surface of tube, die and movable cross piece. EFFECT: lowered deforming effort at reducing end portions of tubular blanks, enhanced quality of surface of formed parts. 1 dwg

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RU 2 122 914 C1

Authors

Makarov K.A.

Murav'Ev V.I.

Ivanov Ju.L.

Mar'In B.N.

Dates

1998-12-10—Published

1997-08-13—Filed