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Study on formability of three-way magnesium tubes by warm hydroforming

by Su, Yan-Huang

Abstract (Summary)
Magnesium alloy tubes have good formability at elevated temperatures. In this study, a finite element code DEFORM 3D is used to simulate the result of T-shape hydroforming at working temperatures 150¢J and 250¢J with magnesium alloy AZ61 tubes and then conducts the hydroforming experiments. By modifying the loading paths, products with uniform thickness and branch height are obtained 49mm. The results of simulation are compared with the experimental results to verify the validity of this modeling. On the other hand, the effects of the die fillet radius on tube formability during y-shape hydroforming are discussed. With the right die fillet radius r1¡×10mm and the left die fillet radius r2¡×30mm, a better formability of the tube is obtained.
Bibliographical Information:

Advisor:FUH-KUO CHEN; WEI-CHING YEH; WOEI SHYAN LEE; RAY-QUEN HSU; YEONG-MAW HWANG

School:National Sun Yat-Sen University

School Location:China - Taiwan

Source Type:Master's Thesis

Keywords:warm tube hydro forming magnesium alloy az61 finite element simulation

ISBN:

Date of Publication:09/03/2008

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