Evaluation of Uniaxial Tensile Behavior under Pulsed Current for Electrically Assisted Warm Forming of Light Weight Alloys

In this study, the electric current effects in the deformation of light weight alloys are investigated to improve the formability. To begin with, a test system is built up to carry out the tensile test with heavy electric current flowing through the specimen. The evolutions of the flow stresses and...

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Bibliographic Details
Published in:Key engineering materials 2017-07, Vol.744, p.254-258
Main Authors: Song, Jung Han, Bang, Jun Ho, Seo, Jong Duk, Lim, Chang Yong, Gwak, Suh Yun, Kim, Yong Bae, Lim, Jung Sik, Jang, Injea
Format: Article
Language:English
Subjects:
Deep drawing
Deformation effects
Density currents
Electric currents
Energy consumption
Formability
Forming
Light metal alloys
Pulsed current
Tensile tests
Test systems
Uniaxial tests
Weight reduction
Yield strength
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Summary:In this study, the electric current effects in the deformation of light weight alloys are investigated to improve the formability. To begin with, a test system is built up to carry out the tensile test with heavy electric current flowing through the specimen. The evolutions of the flow stresses and failure elongations were obtained using this test system. The thermal and athermal effect such as electro-plastic effect of metallic materials induced by high density current make significant reduction of the flow stress, which is beneficial to the forming process of less formable metal. From the uniaxial test results, pulse current-assisted deep drawing test were conducted. The experimental results demonstrate that electrically assisted warm forming provides lower energy consumption and higher efficiency.
ISSN:1013-9826
1662-9795
1662-9795
DOI:10.4028/www.scientific.net/KEM.744.254