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    Experimental Investigation of Tensile Properties of SS316L and Fabrication of Micro/Mesochannel Features by Electrical Assisted Embossing Process

    Source: Journal of Micro and Nano-Manufacturing:;2014:;volume( 002 ):;issue: 002::page 21002
    Author:
    Peng, Linfa
    ,
    Mai, Jianming
    ,
    Jiang, Tianhao
    ,
    Lai, Xinmin
    ,
    Lin, Zhongqin
    DOI: 10.1115/1.4026884
    Publisher: The American Society of Mechanical Engineers (ASME)
    Abstract: During the electricalassisted forming process, a significant decrease in the flow stress of the metal is beneficial to reduce the required force for the deformation with highdensity electrical current introduced through the materials. It is an alternative manufacturing process of traditional hot forming to improve the formability without the undesirable effects caused by elevated temperature, such as surface oxidation. In this study, tension tests and electricalassisted embossing process (EAEP) experiments were performed to study the electroplastic (EP) effect with highdensity pulse current applied to the specimen and demonstrate the advantage of EAEP. In the first section of this study, specimens with various grain sizes were well prepared and an experimental setup was established to study the flow stress of SS316L sheet in the electroplastic tensile test. Extra cooling system was developed and the temperature increase caused by resistive heating was controlled. Thermal influence caused by resistive heating was thereby reduced. The impacts of the pulse current parameters on the flow stress were investigated. It was observed that the flow stress of the SS316L specimens was significantly reduced by the electroplastic effect. In the second section, the EAEP was proposed to fabricate microchannel feature on metal workpiece. Experiments were conducted to demonstrate the feasibility and advantage of the novel process. The protrusion feature height and microstructure of the grain deformation were measured to investigate the effect of the process parameters, such as the current density, the die geometric dimension, and the grain size of the specimen. Larger feature height was measured owing to the higher density current, which meant the electroplastic effects were helpful in EAEP.
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      Experimental Investigation of Tensile Properties of SS316L and Fabrication of Micro/Mesochannel Features by Electrical Assisted Embossing Process

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    http://yetl.yabesh.ir/yetl1/handle/yetl/155989
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    contributor authorPeng, Linfa
    contributor authorMai, Jianming
    contributor authorJiang, Tianhao
    contributor authorLai, Xinmin
    contributor authorLin, Zhongqin
    date accessioned2017-05-09T01:11:27Z
    date available2017-05-09T01:11:27Z
    date issued2014
    identifier issn2166-0468
    identifier otherjmnm_002_02_021002.pdf
    identifier urihttp://yetl.yabesh.ir/yetl/handle/yetl/155989
    description abstractDuring the electricalassisted forming process, a significant decrease in the flow stress of the metal is beneficial to reduce the required force for the deformation with highdensity electrical current introduced through the materials. It is an alternative manufacturing process of traditional hot forming to improve the formability without the undesirable effects caused by elevated temperature, such as surface oxidation. In this study, tension tests and electricalassisted embossing process (EAEP) experiments were performed to study the electroplastic (EP) effect with highdensity pulse current applied to the specimen and demonstrate the advantage of EAEP. In the first section of this study, specimens with various grain sizes were well prepared and an experimental setup was established to study the flow stress of SS316L sheet in the electroplastic tensile test. Extra cooling system was developed and the temperature increase caused by resistive heating was controlled. Thermal influence caused by resistive heating was thereby reduced. The impacts of the pulse current parameters on the flow stress were investigated. It was observed that the flow stress of the SS316L specimens was significantly reduced by the electroplastic effect. In the second section, the EAEP was proposed to fabricate microchannel feature on metal workpiece. Experiments were conducted to demonstrate the feasibility and advantage of the novel process. The protrusion feature height and microstructure of the grain deformation were measured to investigate the effect of the process parameters, such as the current density, the die geometric dimension, and the grain size of the specimen. Larger feature height was measured owing to the higher density current, which meant the electroplastic effects were helpful in EAEP.
    publisherThe American Society of Mechanical Engineers (ASME)
    titleExperimental Investigation of Tensile Properties of SS316L and Fabrication of Micro/Mesochannel Features by Electrical Assisted Embossing Process
    typeJournal Paper
    journal volume2
    journal issue2
    journal titleJournal of Micro and Nano
    identifier doi10.1115/1.4026884
    journal fristpage21002
    journal lastpage21002
    identifier eissn1932-619X
    treeJournal of Micro and Nano-Manufacturing:;2014:;volume( 002 ):;issue: 002
    contenttypeFulltext
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    DSpace software copyright © 2002-2015  DuraSpace
    نرم افزار کتابخانه دیجیتال "دی اسپیس" فارسی شده توسط یابش برای کتابخانه های ایرانی | تماس با یابش
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