Method and device for manufacturing a tubular hollow body with s

Details Method and device for manufacturing a tubular hollow body with s Method and device for manufacturing a tubular hollow body with s

1999-03-10

2000-04-04

Jones, David

Metal deforming

By application of fluent medium, or energy field

With actuated tool engaging work

72 62, 294211, B21D 1506, B21D 2602

Patent

active

060446781

ABSTRACT:
A method and a device for manufacturing a tubular hollow body with increased diameter portions which are arranged at a distance from each other using the internal high pressure deformation process. Initially an internal portion of the hollow body is sealed off at one end thereof and is supported on the inside at the other end thereof and in this internal portion is formed an increased diameter portion by a hydraulic internal high pressure while axially advancing the hollow body, and subsequently, after axially reversing the hollow body within the shaping tool, another increased diameter portion is manufactured in the same manner.

REFERENCES:
patent: 3130771 (1964-04-01), Peyton
patent: 4319471 (1982-03-01), Benteler et al.
patent: 4840053 (1989-06-01), Nakamura
patent: 4996857 (1991-03-01), Kageyama et al.
patent: 5481892 (1996-01-01), Roper et al.

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