Volume 20, Issue 10 (October 2020)                   Modares Mechanical Engineering 2020, 20(10): 2571-2581 | Back to browse issues page

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Khalili M, Bakhshi Jooybari M, Gorji H. Experimental Investigation of the Electroplastic Effect on the Deep Drawing Process of Al5052 Square Cups. Modares Mechanical Engineering 2020; 20 (10) :2571-2581
URL: http://mme.modares.ac.ir/article-15-43662-en.html
1- Faculty of mechanical engineering, Babol Noshirvani University of Technology
2- Professor, Faculty of mechanical engineering, Babol Noshirvani University of Technology
3- Associate Professor, Faculty of mechanical engineering, Babol Noshirvani University of Technology , hamidgorji@nit.ac.ir
Abstract:   (1911 Views)
Research results performed by researchers have illustrated that applying electric current to a deforming metal can lead to a reduction in the required deformation force and an improvement in the formability. This technique is known as electrically assisted forming and is used in various forming processes. In this paper, the forming of square cups through electrically assisted deep drawing process was investigated experimentally and the effects of process parameters, including current magnitude, pulse frequency, and waveform (sinusoidal and square) on the forming force, thickness distribution, and drawing depth are examined. In this regard, after designing and preparing the test setup and forming square cups, the experimental results obtained were compared to those of the conventional deep drawing tests. The results showed that increasing the current magnitude leads to reducing the maximum thinning and the forming force in the deep drawing process of the formed parts. Furthermore, it was found that at a higher frequency, the deformation force decreases significantly and thickness distribution becomes more uniform. The comparison of the two waveforms of pulses demonstrated that the sinusoidal waveform has a relatively more significant effect on the reduction of the force and thickness distribution and a considerable effect on the drawing depth.
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Article Type: Original Research | Subject: Forming of metal sheets
Received: 2020/06/15 | Accepted: 2020/08/24 | Published: 2020/10/11

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