Superplastic Forming of a Three-Stage Hemispherical 5083 Aluminium Profile

被引：5

作者：

Balasubramanian, Muthusamy ^{[1
]}

Ganesh, Pasupathy ^{[2
]}

Ramanathan, Kalimuthu ^{[3
]}

Kumar, Velukkudi Santhanam Senthil ^{[2
]}

机构：

[1] Anna Univ, Univ Coll Engn, Ramanathapuram, India

[2] Anna Univ, Coll Engn, Guindy, India

[3] Alagappa Chettiar Coll Engn & Technol, Karaikkudi, Tamil Nadu, India

来源：

STROJNISKI VESTNIK-JOURNAL OF MECHANICAL ENGINEERING | 2015年 / 61卷 / 06期

关键词：

superplastic forming; three-stage radius hemispherical shape; experimental; FEM; 5083 Al alloy;

D O I：

10.5545/sv-jme.2014.2178

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

Three-stage superplastic blow forming characteristics of 5083 aluminium sheets in a hemispherical die cavity have been studied as a function of forming pressure, die entry radius, coefficient of friction, forming time and forming height, both experimentally and using finite element method in this work. Optimum forming pressure for achieving uniform thickness in a complex three-stage radius dome profile has been established. Variations in thickness profile are observed experimentally and in FEM analysis in three different die entry regions. The thickness profile has also been predicted as a function of the friction coefficient and die entry radius. The changes in pole thickness, relative height and relative radius of the profile along with the thinning factor are discussed.

引用

页码：365 / 373

页数：9

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