Paper Title:
The Influence of Die Geometry on the Radial Extrusion Processes with AA 6063 Aluminium Alloy
  Abstract

The rigid-plastic finite element method has been applied to three variants of radial extrusion processes to investigate the influence of die geometry on the material flow into the flange gap. Case I involves forcing a cylindrical billet against a flat die, which is a single action pressing process. In case II, another single action pressing process, the upper punch forces a billet against a stationary punch recessed in the lower die. Both the upper and lower punches move together in Case III toward the center of billet at the same speed with a double action tool. Major process parameters are identified as the relative gap height and the die corner radius in constant relative deformation. The relative gap height is defined as the ratio of gap height to billet diameter. Extensive simulation work for various combinations of process parameter value has been performed and then the main characteristics of the deformation patterns of each case are observed to define the terms which represent the forming characteristics of the flange in radial extrusion processes in terms of separation height, asymmetric ratio of height, and asymmetric ratio of angle, respectively. The effect of major process parameters on the material flow into the flange gap has been also analyzed in terms of flange radius and flange angle. The effect of frictional condition on the separation height has been also analyzed to investigate the edge separation of flange from the flat die. AA 6063 aluminum alloy is selected as a model material throughout the analysis. Simple comparison between AA 6063 and AISI 1006 steel has been also made to investigate the effect of material selection on the deformation pattern, especially in terms of separation height in Case I and asymmetry in Case II, respectively.

  Info
Periodical
Materials Science Forum (Volumes 519-521)
Edited by
W.J. Poole, M.A. Wells and D.J. Lloyd
Pages
937-942
DOI
10.4028/www.scientific.net/MSF.519-521.937
Citation
D. H. Jang, J.H. Ok, H.S. Koo, G.M. Lee, B. B. Hwang, "The Influence of Die Geometry on the Radial Extrusion Processes with AA 6063 Aluminium Alloy", Materials Science Forum, Vols. 519-521, pp. 937-942, 2006
Online since
July 2006
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Xin Hua Huang, Hua Xiang, Xin Cun Zhuang, Zhen Zhao
Chapter 2: Modeling, Analysis and Simulation of Manufacturing Processes
Abstract:Nowadays, the compound fine-blanking forming process is one of the most important processes to produce complicate multifunctional parts...
236
Authors: Sören Müller, Jerome Muehlhause, J. Maier, Pavel Hora
Abstract:Of the various boundary conditions that are relevant for the correct modeling of the extrusion process the realistic representation of the...
113
Authors: Jian Yi Pan, Zhao Yao Zhou, Shou Bin Dong
Chapter 3: Materials Forming, Machining and Joining
Abstract:Detail analysis is presented for the influence of elastic deformation on profile wall thickness, the metal flowing and stress load situation...
1439
Authors: Yong Wu Jiang, Yang Chen, Jin Dong Liu
Chapter 2: Manufacturing and Design Science
Abstract:This article mainly studies about the stamping processing of the tapered bearing retainer which mainly presents the finite element simulation...
2858
Authors: Li Li Huang, Xiao Yang Lu, Xiang Wei Zhang
Chapter 2: Mechanics Engineering, Dynamics and Systems, Manufacturing Design Applications
Abstract:The numerical simulation of the ironing process of deep cup shaped part was conducted by finite element software Deform 3D. The influences of...
191