Metal deforming – By application of fluent medium – or energy field – With actuated tool engaging work
Patent
1979-12-20
1981-09-01
Gilden, Leon
Metal deforming
By application of fluent medium, or energy field
With actuated tool engaging work
72 11, B21D 1506
Patent
active
042864500
ABSTRACT:
An apparatus for manufacturing corrugated tubes comprises a unit with a hydraulic drive for clamping and sealing the tubular billet, and a device for axial compression of said tubular billet communicating with a compressed gas source. The apparatus also comprises tools installed symmetrically with relation to the direction of compression with a provision for reciprocating across said direction for at least partial encompassing of the tubular billet. The apparatus comprises a device with a pressure regulator for delivering pressurized liquid from a liquid source into the space of the tubular billet for forming the corrugated tube. The apparatus further comprises a device for programmed pressure control inside the tubular billet whose inlet is connected to the hydraulic drive of the clamping and sealing unit and its outlet, to the inside space of the tubular billet, and a device for programmed control of axial compression force whose inlet is connected to the compressed gas source and the outlet, to the axial compression device for displacing the movable member thereof, both of said devices being in operational communication with each other for synchronous changes of axial compression force and pressure inside the tubular billet.
REFERENCES:
patent: 2610667 (1952-09-01), Puster
patent: 2796109 (1957-06-01), Wood
patent: 3083754 (1963-04-01), De Mess
patent: 3099311 (1963-07-01), Van Leer et al.
patent: 3704983 (1972-12-01), Tellot
Akhmerov Almas F.
Anoshko Vladimir A.
Chepurin Valentin M.
Gavrilov Anatoly N.
Godin Eduard M.
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