Metal deforming – By application of fluent medium – or energy field – With actuated tool engaging work
Patent
1994-06-08
1995-07-25
Jones, David
Metal deforming
By application of fluent medium, or energy field
With actuated tool engaging work
72 62, 294211, B21D 2210
Patent
active
054351634
ABSTRACT:
An apparatus for hydraulically shaping a hollow body has a stationary base, a die fixed on the base and formed with a cavity having an inner surface and axially oppositely open ends so that a tubular workpiece can be held in the cavity with ends of the workpiece exposed at the ends of the cavity, and a pair of pistons fittable with the workpiece ends. Respective actuators can displace the pistons toward each other and against the ends of the workpiece in the cavity. A hydraulic liquid is fed at high pressure through one of the pistons to an interior of the workpiece in the cavity to deform the workpiece. Respective first guides support the pistons on the base for vertical movement thereon, respective second guides support the pistons on the base for horizontal movement thereon, and respective third guides support the pistons on the base for pivotal movement about respective centers.
REFERENCES:
patent: 2203868 (1940-06-01), Gray et al.
patent: 3350905 (1967-11-01), Ogura
patent: 4317348 (1982-03-01), Halene et al.
Industrie-Anzeiger, Werkzeugmaschine und Fertigungstechnik, Teil II Umformtechnik, 10 Mai 1966, pp. 107-110, pp. 137-140.
Dubno Herbert
Jones David
Wilford Andrew
Wilhelm Schafer Maschinenbau GmbH & Co.
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