APPARATUS FOR FLARING TUBE ENDS Russian patent published in 1998 - IPC

Abstract RU 2122481 C1

FIELD: plastic metal working, namely forming parts of tubular blanks, possibly in airplane manufacture, ship building and other allied industry branches. SUBSTANCE: apparatus includes rigidly secured rod, tubular blank arranged on rod, cross bar that may move along rod, punch mounted on free end of rod, additional cylinder mounted coaxially with rod, joined with cross bar and having openings with plugs for filling liquid to cylinder and draining liquid from it. Piston with outer diameter equal to inner diameter of additional cylinder is mounted on free end of punch. EFFECT: enhanced shaping degree at flaring thin-wall tube blanks. 1 dwg

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RU 2 122 481 C1

Authors

Mar'In B.N.

Makarov K.A.

Ivanov Ju.L.

Odinokov V.I.

Makarova E.A.

Dates

1998-11-27—Published

1997-08-13—Filed