Integrated Manufacturing by Hydroforming, Laser Welding and Cutting

Kreis, Oliver; Celeghini, M.; Merklein, Marion

doi:10.4028/0-87849-972-5.393

Cited by 4 publications

(4 citation statements)

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“…7 shows the end trimming of an hydroformed aluminium cross member by laser cutting and additional forming of connection flanges [30]. The shortening of the process chain for the manufacture of hydroformed components by integration of trimming into hydroforming processes is subject of current research work [31]. Fig.…”

Section: Process Chainmentioning

confidence: 99%

Research and advances in fundamentals and industrial applications of hydroforming

Hartl

2005

Journal of Materials Processing Technology

116

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Section: Process Chainmentioning

confidence: 99%

Research and advances in fundamentals and industrial applications of hydroforming

Hartl

2005

Journal of Materials Processing Technology

116

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“…The hydroformed automobile frameworks usually are profiled components, the axial contour line and cross-section shape are very complex. So the pre-bending for the tube is important [16].…”

Section: Hydroforming Process and Product Designmentioning

confidence: 99%

Study on Product Design and Process Simulation of Hydroformed Automobile Framework

Lin

Cheng

2010

AMR

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To achieve smaller weight, stronger strength and higher stiffness, tube hydroforming is widely used in the industry. The front beam is analysed the front beam part is redesigned based on the technics, and automotive structural lightweight and integration are achieved under the precondition of ensuring vehicle performance and security. Then, the hydroforming process of front beam is analyzed by numerical simulation based upon the elastic-plastic finite element method, Belytschko-Tsay shell element theory and dynamic explicit solution, the internal pressure loading path as the main hydroforming process parameters is discussed in detail. The present analysis provide basis for its applications.

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“…At the Chair of Manufacturing Technology of the University of Erlangen-Nuremberg a hollow part was manufactured by means of an integrated tube -double sheet hydroforming process in one step and in one tool. This innovative technology is particularly suitable for the production of hollow parts with a strong change in the cross section [3,4].…”

Section: Integrated Tube -Double Sheet Hydroforming Technologymentioning

confidence: 99%

Integrated Tube and Double Sheet Hydroforming Technology - Optimised Process for the Production of a Complex Part

Geiger

Merklein

Cojutti

2007

KEM

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The possibility to produce lightweight components with a complex geometry enhanced, in the last decades, the industrial application of the tube hydroforming and, more recently and restricted to specific industrial fields, of the sheet hydroforming technology. The integration in one tool of a tube and a double sheet hydroforming process represents an innovative technology which further emphasises the advantages offered by hydroforming in terms of costs reduction and complexity of the manufactured part. This paper describes the design and the construction of a complex hollow part resulting from the simultaneous hydroforming of two sheets and a tubular component in one tool. The focus is set in particular on the optimisation of the joining zone between tube and sheet pair, whose geometry allows a “metallic” sealing of the gap between the sheets and the tube, i.e. without using sealing components. The contact between tube and sheet pair allows the transmission of the axial force used to support the bulging of the tube to the sheet blanks, thus increasing their draw-in in the die and, consequently, avoiding the occurrence of tearing on the part. The paper describes the optimisation of different process parameters like the shape and the dimension of the blanks, their initial positioning in the tool, the value of the axial force applied to the tubular component and the blankholder force during the preforming and the calibrating stages.

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Integrated Manufacturing by Hydroforming, Laser Welding and Cutting

Cited by 4 publications

References 0 publications

Research and advances in fundamentals and industrial applications of hydroforming

Research and advances in fundamentals and industrial applications of hydroforming

Study on Product Design and Process Simulation of Hydroformed Automobile Framework

Integrated Tube and Double Sheet Hydroforming Technology - Optimised Process for the Production of a Complex Part

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