Table of Contents
International Journal of Manufacturing Engineering
Volume 2014, Article ID 175743, 6 pages
Research Article

Finite Element Analysis of PMMA Stretch Blow Molding

UGPMM, National Engineering School of Sfax, Route Soukra Km 2.5, BP 1173, Sfax, Tunisia

Received 30 May 2014; Revised 14 August 2014; Accepted 15 August 2014; Published 27 August 2014

Academic Editor: Hailiang Yu

Copyright © 2014 Afef Bougharriou et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


The electric bubbles are a useful product made of PMMA material. They are produced by the stretch blow molding process. Thickness, which reflects the quality of the electric bubble, is a crucial parameter that deserves special attention for the molding process. In this work, finite element simulations of the stretch blow molding process are performed aiming at the determination of the preform geometry to ensure homogeneous thickness of the finished product. The geometrical parameters of the preform are optimized allowing a better homogeneity thickness compared to existing data. The predicted parameters allow the improvement of the thickness distribution. The standard deviation of the thickness is reduced to about 95% compared to the existing bubble.