Paper Title:
Shape Distortion and Thickness Distribution during SPIF Processes: Expermental and Numerical Analysis
  Abstract

Single Point Incremental Forming (SPIF) is a quite new sheet forming process which offers the possibility to deform complex parts without dedicated dies using only a single point tool and a standard 3-axis CNC machine. The process mechanics enables strains much higher than traditional sheet forming processes, but particular attention must be given to the final part geometrical accuracy. In this paper the capabilities of a dedicated explicit numerical model are quantitatively analyzed on pyramid-shaped parts. In particular a comparison between experimental and numerical results is reported. Three different shapes at the varying of the stamping angle were considered and the final shape was acquired, through a white light triangulation based optical scanner, after the removing of the punch and of the clamping fixture. LS-DYNA commercial code was used to simulate the three different case studies, and an explicit loading-implicit unloading approach was implemented in order to simulate also the shape distortions due to springback phenomenon. The effect of several numerical parameters on the final shape and the thickness distribution were investigated. In particular numerical results were analyzed at the varying of the material constituve law, of the shell element type and of the number of integration points along the thickness.

  Info
Periodical
Main Theme
Edited by
J.R. Duflou, R. Clarke, M. Merklein, F. Micari, B. Shirvani and K. Kellens
Pages
913-918
DOI
10.4028/www.scientific.net/KEM.473.913
Citation
G. Buffa, G. Ingarao, L. Fratini, F. Micari, "Shape Distortion and Thickness Distribution during SPIF Processes: Expermental and Numerical Analysis", Key Engineering Materials, Vol. 473, pp. 913-918, 2011
Online since
March 2011
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: S.M.H. Seyedkashi, Golam Hosein Liaghat, Hassan Moslemi Naeini, M. Hoseinpour Gollo
Abstract:Tube hydroforming technology is still considered a new technique growing fast in automotive and aircraft industries. Many researches on all...
133
Authors: Yin Fang Jiang, Lei Fang, Zhi Fei Li, Zhen Zhou Tang
Abstract:As a new lightweight material and new technique,Tailor Rolled Blanks has a good prospect in energy-saving environmental protection and the...
488
Authors: Mohsen Loh-Mousavi, Amir Masoud Mirhosseini, Ghasem Amirian
Abstract:In recent years, tube hydroforming has been applied in automobile and airplane industries, to decrease weight. In general, the determination...
5
Authors: Wojciech Wajda, Henryk Paul
Abstract:The paper describes the mechanism of deformation at 77 K of pure aluminum bicrystals of different grain orientations. The following...
108
Authors: Jong Hoon Yoon, Ho Sung Lee, Yeng Moo Yi, Joon Tae Yoo
IV. Design, Testing and Modelling
Abstract:In the current study, the finite element simulation for superplastic blow forming of a toroidal Ti-6Al-4V fuel tank is discussed. 3 types of...
240