Hydroforming of flanged tubular part

Tube hydroforming is the technology that utilizes hydraulic pressure to form a tube into desired shapes inside die cavities. Recently, tube hydroforming technology draws attentions of automotive industries due to its advantages such as weight reduction, increased strength, improved quality and reduc...

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Bibliographic Details
Published in:AIP conference proceedings 2010-06, Vol.1252 (1), p.369-374
Main Authors: Joo, B D, Jang, J H, Choi, M K, Moon, Y H
Format: Article
Language:English
Subjects:
Angles (geometry)
Attachment
Automobiles
Automotive components
Automotive engineering
AUTOMOTIVE INDUSTRY
Circumferences
CONTROL
Cost engineering
Design engineering
Die cavities
Finite element method
FLANGES
Forming
Frames
Fuel consumption
Hydraulic pressure
Hydroforming
In vehicle
INDUSTRY
MATERIALS SCIENCE
PRESSURE CONTROL
Process parameters
Strength
Subframes
Tooling
TUBES
VEHICLES
Weight reduction
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Summary:Tube hydroforming is the technology that utilizes hydraulic pressure to form a tube into desired shapes inside die cavities. Recently, tube hydroforming technology draws attentions of automotive industries due to its advantages such as weight reduction, increased strength, improved quality and reduced tooling cost Hydroformed automotive parts used as structural components in vehicle body frame or subframe often have to be structurally joined at some point. Therefore it is useful if the hydroformed automotive parts can be given a localized attachment flange. In this study, a tube hydroformed product which has flange has been formed at various processing conditions. To accomplish successful flange hydroforming process, thorough investigation on proper combination of process parameters such as internal hydraulic pressure and tool geometry has been performed. For the process design FE analysis was performed with Dynaform 5.5. With optimized die parting angle and circumferential expansion ratio, hydroforming experiments to form flange were performed and forming characteristics at various process conditions were analyzed. The results show that flanged parts can be successfully produced by tube hydroforming process.
ISSN:0094-243X
1551-7616
DOI:10.1063/1.3457576