Volume 8, Issue 1 (10-2008)
Modares Mechanical Engineering 2008, 8(1): 69-86 |
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Javanroodi F, Pakbaz M. Parameters Affecting Hydroforming Deep Drawing and Comparison of Common Deep Drawing
Methods using FEM. Modares Mechanical Engineering 2008; 8 (1) :69-86
URL: http://mme.modares.ac.ir/article-15-10036-en.html
URL: http://mme.modares.ac.ir/article-15-10036-en.html
1- , Iran University of Science andTechnology
2- Iran University of Science and Technology
2- Iran University of Science and Technology
Abstract: (8826 Views)
In this paper comparison of finite element results and experimental observations of the hydroforming deep drawing is considered in which fluid pressure is used instead of die. Effects of hydroforming parameters during the process are studied, and a comparison with conventional method in deep drawing of aluminum alloys sheets with different blank diameters is presented. Large strain effects, anisotropic material properties, and the Coulomb friction theory in contact surfaces have been considered. ABAQUS code was used for simulation of process. In the first step, the numerical results have been verified by available experimental results, which showed a good agreement. These results contain force-punch travel and thickness strain. In the next step, the effects of initial pressure, friction, and punch radius on wrinkling, tearing, earring, and thickness strain have been studied. The results showed the range of pressure container for the hydroforming deep drawing. A comparison between some of the common deep drawing methods has been presented based on two main failure criteria and thickness strain criteria. Finally it is concluded that the hydroforming process is a more efficient method for achieving the higher drawing rate with respect to the conventional methods.
Received: 2007/04/14 | Accepted: 2007/06/20 | Published: 2008/09/14
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