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    Deformation Size Effects Due to Specimen and Grain Size in Microbending

    Source: Journal of Manufacturing Science and Engineering:;2010:;volume( 132 ):;issue: 001::page 11018
    Author:
    Sunal Ahmet Parasiz
    ,
    Reid VanBenthysen
    ,
    Brad L. Kinsey
    DOI: 10.1115/1.4000943
    Publisher: The American Society of Mechanical Engineers (ASME)
    Abstract: Sheet metal forming often consists of bending processes in which gradients of deformation exists through the thickness of the workpiece in a localized deformation area. In microscale bending, these deformation gradients become much steeper, as the changes in the deformation occur over short distances (in the order of micrometers). In addition, with miniaturization, the number of grains that are present through the thickness decreases significantly. In this research, the effect of grain size and specimen size on the deformation distribution through the thickness of microbent sheet specimens was investigated via microhardness evaluations. It was found that the deformation distribution, i.e., hardness profile, is not affected significantly by the grain size when the sheet thickness is large (for 1.625 mm specimens) or by miniaturization of the specimen size when the grain size is fine. However, the deformation distribution of the coarse grained specimens deviates from the fine grained ones and from the 1.625 mm thick sheet specimens when the specimen size is miniaturized.
    keyword(s): Deformation , Grain size , Thickness AND Microhardness ,
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      Deformation Size Effects Due to Specimen and Grain Size in Microbending

    URI
    http://yetl.yabesh.ir/yetl1/handle/yetl/144100
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    contributor authorSunal Ahmet Parasiz
    contributor authorReid VanBenthysen
    contributor authorBrad L. Kinsey
    date accessioned2017-05-09T00:39:26Z
    date available2017-05-09T00:39:26Z
    date copyrightFebruary, 2010
    date issued2010
    identifier issn1087-1357
    identifier otherJMSEFK-28313#011018_1.pdf
    identifier urihttp://yetl.yabesh.ir/yetl/handle/yetl/144100
    description abstractSheet metal forming often consists of bending processes in which gradients of deformation exists through the thickness of the workpiece in a localized deformation area. In microscale bending, these deformation gradients become much steeper, as the changes in the deformation occur over short distances (in the order of micrometers). In addition, with miniaturization, the number of grains that are present through the thickness decreases significantly. In this research, the effect of grain size and specimen size on the deformation distribution through the thickness of microbent sheet specimens was investigated via microhardness evaluations. It was found that the deformation distribution, i.e., hardness profile, is not affected significantly by the grain size when the sheet thickness is large (for 1.625 mm specimens) or by miniaturization of the specimen size when the grain size is fine. However, the deformation distribution of the coarse grained specimens deviates from the fine grained ones and from the 1.625 mm thick sheet specimens when the specimen size is miniaturized.
    publisherThe American Society of Mechanical Engineers (ASME)
    titleDeformation Size Effects Due to Specimen and Grain Size in Microbending
    typeJournal Paper
    journal volume132
    journal issue1
    journal titleJournal of Manufacturing Science and Engineering
    identifier doi10.1115/1.4000943
    journal fristpage11018
    identifier eissn1528-8935
    keywordsDeformation
    keywordsGrain size
    keywordsThickness AND Microhardness
    treeJournal of Manufacturing Science and Engineering:;2010:;volume( 132 ):;issue: 001
    contenttypeFulltext
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