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

Abstract:

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.

• Periodical: Key Engineering Materials (Volume 744)
• Pages: 254-258
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.744.254
• Online since: July 2017
• Authors: Jung Han Song*, Injea Jang, Suh Yun Gwak, Jun Ho Bang, Yong Bae Kim, Jung Sik Lim, Chang Yong Lim, Jong Duk Seo
• Keywords: Deep Drawing Test under Pulsed Current, Electrically Assisted Warm Forming, Electro-Plasticity, Light Weight Alloys, Tensile Test under Pulsed Current

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