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    Pressbrake Bending in the Punch-Sheet Contact Region—Part 2: Gap Formation and the Direction of Sheet Motion

    Source: Journal of Manufacturing Science and Engineering:;1988:;volume( 110 ):;issue: 002::page 131
    Author:
    F. Pourboghrat
    ,
    K. A. Stelson
    DOI: 10.1115/1.3187861
    Publisher: The American Society of Mechanical Engineers (ASME)
    Abstract: In Part 1 of this paper, simple models of nonuniformities in pressbrake bending in the punch-sheet contact region were presented. An extreme manifestation of these nonuniformities is the appearance of a gap between the punch and the sheet. The models from Part 1 are used in Part 2 to predict the possible formation of this gap as a function of the geometry and the frictional conditions. To determine the direction of the frictional force at the die, methods to determine the direction of sheet motion on the die are presented. Elastic and rigid-plastic material models of the sheet are considered, and are shown to produce remarkably similar results.
    keyword(s): Motion , Geometry AND Force ,
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      Pressbrake Bending in the Punch-Sheet Contact Region—Part 2: Gap Formation and the Direction of Sheet Motion

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    http://yetl.yabesh.ir/yetl1/handle/yetl/104130
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    contributor authorF. Pourboghrat
    contributor authorK. A. Stelson
    date accessioned2017-05-08T23:27:36Z
    date available2017-05-08T23:27:36Z
    date copyrightMay, 1988
    date issued1988
    identifier issn1087-1357
    identifier otherJMSEFK-27730#131_1.pdf
    identifier urihttp://yetl.yabesh.ir/yetl/handle/yetl/104130
    description abstractIn Part 1 of this paper, simple models of nonuniformities in pressbrake bending in the punch-sheet contact region were presented. An extreme manifestation of these nonuniformities is the appearance of a gap between the punch and the sheet. The models from Part 1 are used in Part 2 to predict the possible formation of this gap as a function of the geometry and the frictional conditions. To determine the direction of the frictional force at the die, methods to determine the direction of sheet motion on the die are presented. Elastic and rigid-plastic material models of the sheet are considered, and are shown to produce remarkably similar results.
    publisherThe American Society of Mechanical Engineers (ASME)
    titlePressbrake Bending in the Punch-Sheet Contact Region—Part 2: Gap Formation and the Direction of Sheet Motion
    typeJournal Paper
    journal volume110
    journal issue2
    journal titleJournal of Manufacturing Science and Engineering
    identifier doi10.1115/1.3187861
    journal fristpage131
    journal lastpage136
    identifier eissn1528-8935
    keywordsMotion
    keywordsGeometry AND Force
    treeJournal of Manufacturing Science and Engineering:;1988:;volume( 110 ):;issue: 002
    contenttypeFulltext
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    DSpace software copyright © 2002-2015  DuraSpace
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