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    Improvement of Geometric Accuracy in Incremental Forming by Using a Squeezing Toolpath Strategy With Two Forming Tools

    Source: Journal of Manufacturing Science and Engineering:;2011:;volume( 133 ):;issue: 006::page 61019
    Author:
    Rajiv Malhotra
    ,
    Feng Ren
    ,
    N. V. Reddy
    ,
    Vijitha Kiridena
    ,
    Jian Cao
    ,
    Z. Cedric Xia
    DOI: 10.1115/1.4005179
    Publisher: The American Society of Mechanical Engineers (ASME)
    Abstract: Single point incremental forming (SPIF) is plagued by an unavoidable and unintended bending in the region of the sheet between the current tool position and the fixture. The effect is a deformation of the region of the sheet in between the formed area and the fixture as well as deformation of the already formed portion of the wall, leading to significant geometric inaccuracy in SPIF. Double sided incremental forming (DSIF) uses two tools, one on each side of the sheet to form the sheet into the desired shape. This work explores the capabilities of DSIF in terms of improving the geometric accuracy as compared to SPIF by using a novel toolpath strategy in which the sheet is locally squeezed between the two tools. Experiments and simulations are performed to show that this strategy can improve the geometric accuracy of the component significantly by causing the deformation to be stabilized into a local region around the contact point of the forming tool. At the same time an examination of the forming forces indicates that after a certain amount of deformation by using this strategy a loss of contact occurs between the bottom tool and the sheet. The effects of this loss of contact of the bottom tool on the geometric accuracy and potential strategies, in order to avoid this loss of contact, are also discussed.
    keyword(s): Force , Deformation , Jigs and fixtures , Equipment and tools , Blanks , Geometry , Finite element analysis AND Shapes ,
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      Improvement of Geometric Accuracy in Incremental Forming by Using a Squeezing Toolpath Strategy With Two Forming Tools

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    http://yetl.yabesh.ir/yetl1/handle/yetl/146821
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    • Journal of Manufacturing Science and Engineering

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    contributor authorRajiv Malhotra
    contributor authorFeng Ren
    contributor authorN. V. Reddy
    contributor authorVijitha Kiridena
    contributor authorJian Cao
    contributor authorZ. Cedric Xia
    date accessioned2017-05-09T00:45:21Z
    date available2017-05-09T00:45:21Z
    date copyrightDecember, 2011
    date issued2011
    identifier issn1087-1357
    identifier otherJMSEFK-28500#061019_1.pdf
    identifier urihttp://yetl.yabesh.ir/yetl/handle/yetl/146821
    description abstractSingle point incremental forming (SPIF) is plagued by an unavoidable and unintended bending in the region of the sheet between the current tool position and the fixture. The effect is a deformation of the region of the sheet in between the formed area and the fixture as well as deformation of the already formed portion of the wall, leading to significant geometric inaccuracy in SPIF. Double sided incremental forming (DSIF) uses two tools, one on each side of the sheet to form the sheet into the desired shape. This work explores the capabilities of DSIF in terms of improving the geometric accuracy as compared to SPIF by using a novel toolpath strategy in which the sheet is locally squeezed between the two tools. Experiments and simulations are performed to show that this strategy can improve the geometric accuracy of the component significantly by causing the deformation to be stabilized into a local region around the contact point of the forming tool. At the same time an examination of the forming forces indicates that after a certain amount of deformation by using this strategy a loss of contact occurs between the bottom tool and the sheet. The effects of this loss of contact of the bottom tool on the geometric accuracy and potential strategies, in order to avoid this loss of contact, are also discussed.
    publisherThe American Society of Mechanical Engineers (ASME)
    titleImprovement of Geometric Accuracy in Incremental Forming by Using a Squeezing Toolpath Strategy With Two Forming Tools
    typeJournal Paper
    journal volume133
    journal issue6
    journal titleJournal of Manufacturing Science and Engineering
    identifier doi10.1115/1.4005179
    journal fristpage61019
    identifier eissn1528-8935
    keywordsForce
    keywordsDeformation
    keywordsJigs and fixtures
    keywordsEquipment and tools
    keywordsBlanks
    keywordsGeometry
    keywordsFinite element analysis AND Shapes
    treeJournal of Manufacturing Science and Engineering:;2011:;volume( 133 ):;issue: 006
    contenttypeFulltext
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    yabeshDSpacePersian
     
    DSpace software copyright © 2002-2015  DuraSpace
    نرم افزار کتابخانه دیجیتال "دی اسپیس" فارسی شده توسط یابش برای کتابخانه های ایرانی | تماس با یابش
    yabeshDSpacePersian