Metal deforming – By application of fluent medium – or energy field – Using fixed die
Patent
1995-11-21
1997-02-11
Jones, David
Metal deforming
By application of fluent medium, or energy field
Using fixed die
72 62, 294211, 29512, B21D 3908
Patent
active
056009836
ABSTRACT:
Apparatus and method for hydroforming a dual wall conduit having a controlled size gap between the walls, a frame having an upper crown and a lower bed defining a hydroforming space therebetween, the bed having a slideway extending from the space to a load-unload-preform position out of the space. A mold assembly on the slideway has a lower platen and an upper platen defining at least two hydroforming cavities, one cavity being an elongated preform and semi-finish cavity, and the other cavity being an elongated finish cavity. Mold shifting means is positioned for shifting the mold assembly on the slideway from the position in the space between the crown and bed, to and from the forward load-unload-preform position. Mold closing and preforming hydraulic cylinders are operably connected to the upper mold platen for closing the upper platen onto the lower platen and creating mechanical preforming on dual wall tubular stock in the preform and semi-finish form cavity. The upper crown has a peripherally retained bladder over the mold assembly for applying a closure clamping force on the mold assembly by the bladder. A first pair of double acting, tube sealing, hydroforming elements are at the ends of the preform, semi-finish cavity, and a second pair of tube sealing hydroforming elements are at the ends of the finish cavity.
REFERENCES:
patent: 1879009 (1932-09-01), Anthony
patent: 2138268 (1938-11-01), Dake
patent: 2667136 (1954-01-01), Reichl
patent: 3266086 (1966-08-01), Markevitch
patent: 3663027 (1972-05-01), Klipping
patent: 3691266 (1972-09-01), Greenberg
patent: 3833330 (1974-09-01), Aoki
patent: 3947196 (1976-03-01), Tribbett
patent: 4210467 (1980-07-01), Klatzer
patent: 4319471 (1982-03-01), Benteler
patent: 4519230 (1985-05-01), Chachin
patent: 4636608 (1987-01-01), Palentyn
patent: 4644128 (1987-02-01), Palentyn
patent: 4708390 (1987-11-01), Palentyn
patent: 4798076 (1989-01-01), Rigsby
patent: 5107693 (1992-04-01), Olszewski
patent: 5118159 (1992-06-01), Horling
patent: 5123694 (1992-06-01), DePierre
patent: 5170557 (1992-12-01), Rigsby
patent: 5239852 (1993-08-01), Roper
patent: 5363544 (1994-11-01), Wells et al.
patent: 5415021 (1995-05-01), Folmer
patent: 5445001 (1995-08-01), Snavely
patent: 5475911 (1995-12-01), Wells et al.
patent: 5481892 (1996-01-01), Roper et al.
Benteler Industries, Inc.
Jones David
LandOfFree
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