Tube tapering apparatus having a variable orifice die

Details Tube tapering apparatus having a variable orifice die Tube tapering apparatus having a variable orifice die

1992-06-11

1994-05-31

Crane, Daniel C.

Metal deforming

By use of non-deforming work-gripping clamp and relatively...

By individually non-deforming clamps

72302, 72189, 72285, 72402, 72468, B21D 700, B21D 1108, B21D 3714

Patent

active

053158547

ABSTRACT:
An apparatus for tapering a tube having a frame, a tube receiving end connected to the frame, a variable-orifice die arranged so as to be movable relative to the frames, and an axial tension cylinder connected to the tube receiving end so as to apply tension forces to the tube. The variable-orifice die includes a stand having a housing and a plurality of die segments arranged within the housing. The die segments contain a circular groove of varying radius. The die segments define an orifice having an entry plane and an exit plane. The exit plane and the entry plane are offset from the plane of rotation of the die segments. The orifice is truly round in a plane parallel to and offset from the plane of rotation. A motion control processer is interactively connected with the die stand and with the axial tension cylinder for controlling a position of the axial tension cylinder relative to a rate of reduction of the diameter of the tube.

REFERENCES:
patent: Re12515 (1906-07-01), Briede
patent: Re18329 (1932-01-01), Neuberth
patent: 1549527 (1925-08-01), Fielding
patent: 1818435 (1931-08-01), Smith
patent: 1912751 (1933-06-01), Batcheller
patent: 2247863 (1941-07-01), Tiedemann
patent: 2622652 (1952-12-01), Conroy
patent: 3019678 (1962-02-01), Le Fiell
patent: 3330145 (1967-07-01), Adolphi
patent: 3416346 (1968-12-01), Arrington
patent: 3444715 (1969-05-01), Sellars
patent: 3464251 (1969-09-01), Johns
patent: 3478557 (1969-11-01), Tremblay
patent: 4941342 (1990-07-01), Herndl

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