Apparatus for internal high-pressure molding

Details Apparatus for internal high-pressure molding Apparatus for internal high-pressure molding

1995-01-19

1996-11-05

Jones, David

Metal deforming

By application of fluent medium, or energy field

Using fixed die

72 62, 72455, B21D 2602

Patent

active

055706029

ABSTRACT:
In an apparatus for molding particularly a tubular blank (1) of a ductile metal with internal high pressure in a mold, which has a cavity (5), a lower part (2) and a removable upper part (3) as well as a mechanism (6, 7, 13-21) for holding the upper (3) and lower parts (2) together, this mechanism consists of a pot (7), which is provided with a lid (15) and in which the mold (2, 3) is inserted. Between the pot (7) and the lid (15), a bayonet lock (13-20) is provided with a row of interlocking devices (14, 19), which can be brought into and out of engagement by means of a ring (16), which can be rotated relative to the mold (2, 3), and with an annular (9; 21) introduction of force into the lower part (2) and the upper part (3) near their circumference. Said ring (16) is disposed at a lid (6), which is mounted on the upper part (3) of the mold and can be rotated by means of a hydraulic cylinder (17) acting with a tangential force component between the remaining lid (15) and the ring (16) over oscillating cranks (18) hinged at the remaining lid (15) and the ring (16) with approximately radial extent.

REFERENCES:
patent: 2344779 (1944-03-01), Kolderman et al.
patent: 3005431 (1961-10-01), Moller
patent: 3391559 (1968-07-01), Myers
patent: 4305270 (1981-12-01), Kokovikhin et al.

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