TY - CHAP

T1 - The Influence of Wall Thickness on Hollow Lateral Extrusion of Tubular Billets

AU - Schubert, Rudolf

AU - Schwane, Martin

AU - Felde, Alexander

AU - Ben Khalifa, Noomane

AU - Tekkaya, A. Erman

AU - Liewald, Mathias

N1 - Conference code: 12

PY - 2011

Y1 - 2011

N2 - Increase of greenhouse gas in atmosphere, because of burning fossil fuels, causes global warming. For that reason more and more products get evaluated concerning their carbon footprint. Lightweight construction of vehicles is an effective method to reduce the carbon footprint of passenger vehicles. Hollow components are particularly to achieve this goal, especially when dealing with rotating and constantly accelerated masses. Metal forming technologies in general - and especially bulk metal forming techniques - are suitable for production of hollow construction units for automotive industry, as they provide economical production from medium size to a large volume number of units. The cold forging process hollow lateral extrusion of tubular billets is discussed in this paper. The development and analysis of this metal forming process is subject of a joint project between the Institute of Forming Technology and Lightweight Construction of TU Dortmund University and the Institute for Metal Forming Technology of the University of Stuttgart. At first the process characteristics are introduced and fundamentals of the forming process are discussed. Subsequently specific forming part geometries and tool concepts are explained. Afterwards the results of FE analysis and experimental testing of parts with different wall thicknesses are discussed. Finally, the topic is summarized and conclusions concerning such a newly developed cold forging process are drawn.

AB - Increase of greenhouse gas in atmosphere, because of burning fossil fuels, causes global warming. For that reason more and more products get evaluated concerning their carbon footprint. Lightweight construction of vehicles is an effective method to reduce the carbon footprint of passenger vehicles. Hollow components are particularly to achieve this goal, especially when dealing with rotating and constantly accelerated masses. Metal forming technologies in general - and especially bulk metal forming techniques - are suitable for production of hollow construction units for automotive industry, as they provide economical production from medium size to a large volume number of units. The cold forging process hollow lateral extrusion of tubular billets is discussed in this paper. The development and analysis of this metal forming process is subject of a joint project between the Institute of Forming Technology and Lightweight Construction of TU Dortmund University and the Institute for Metal Forming Technology of the University of Stuttgart. At first the process characteristics are introduced and fundamentals of the forming process are discussed. Subsequently specific forming part geometries and tool concepts are explained. Afterwards the results of FE analysis and experimental testing of parts with different wall thicknesses are discussed. Finally, the topic is summarized and conclusions concerning such a newly developed cold forging process are drawn.

KW - Engineering

KW - Dehnung

KW - DIN-Norm

KW - Dorn

KW - Finite-Elemente-Methode

KW - geometrische Form

KW - Hohlkörper

KW - Kaltumformen

KW - Prozessoptimierung

KW - Querfließpressen

KW - Querschnittänderung

UR - https://www.tib.eu/de/suchen/id/tema%3ATEMA20110902478/The-influence-of-wall-thickness-on-hollow-lateral/

M3 - Article in conference proceedings

SN - 9783883553856

SN - 3883553859

SP - 15

EP - 21

BT - Proceedings 12th ICFC 2011

A2 - Liewald, Matthias

PB - Institut für Umformtechnik der Universität Stuttgart

T2 - 12th International Cold Forging Congress - ICFC 2011

Y2 - 19 May 2011 through 19 May 2011

ER -