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    Sliver Generation Reduction in Trimming of Aluminum Autobody Sheet

    Source: Journal of Manufacturing Science and Engineering:;2003:;volume( 125 ):;issue: 001::page 128
    Author:
    Ming Li
    DOI: 10.1115/1.1540113
    Publisher: The American Society of Mechanical Engineers (ASME)
    Abstract: Aluminum autobody sheets produce appreciable amounts of slivers during trimming operations when trimmed with dies conventionally designed for steel sheets. The slivers can be carried through downstream processes and cause damage to the surface of formed parts resulting in costly manual repair. This paper reports a systematic experimental study at both the macro- and micro-scale of the sliver generation problem with relation to cutting angle, clearance, and blade sharpness. It is concluded that slivers can be reduced or even eliminated by modifying the current trimming tools designed for steel sheets. The most striking finding is that the conventional wisdom of 0-degree cutting conditions generate the largest amount of slivers for aluminum alloy sheets. With proper cutting angles, trimming aluminum autobody sheets can actually be more robust than that for steel sheets—the clearances can be less restrictive and tools may require much less frequent sharpening. The microscopic investigation traced the origins of slivers and revealed the mechanisms of sliver generation. The paper demonstrates that the integration of material microstructure and mechanics is very beneficial for solving a significant manufacturing problem and can greatly improve the process of shearing aluminum alloy autobody sheet.
    keyword(s): Aluminum , Clearances (Engineering) , Blades , Cutting , Steel sheet , Aluminum alloys AND Manufacturing ,
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      Sliver Generation Reduction in Trimming of Aluminum Autobody Sheet

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    http://yetl.yabesh.ir/yetl1/handle/yetl/128761
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    contributor authorMing Li
    date accessioned2017-05-09T00:10:49Z
    date available2017-05-09T00:10:49Z
    date copyrightFebruary, 2003
    date issued2003
    identifier issn1087-1357
    identifier otherJMSEFK-27657#128_1.pdf
    identifier urihttp://yetl.yabesh.ir/yetl/handle/yetl/128761
    description abstractAluminum autobody sheets produce appreciable amounts of slivers during trimming operations when trimmed with dies conventionally designed for steel sheets. The slivers can be carried through downstream processes and cause damage to the surface of formed parts resulting in costly manual repair. This paper reports a systematic experimental study at both the macro- and micro-scale of the sliver generation problem with relation to cutting angle, clearance, and blade sharpness. It is concluded that slivers can be reduced or even eliminated by modifying the current trimming tools designed for steel sheets. The most striking finding is that the conventional wisdom of 0-degree cutting conditions generate the largest amount of slivers for aluminum alloy sheets. With proper cutting angles, trimming aluminum autobody sheets can actually be more robust than that for steel sheets—the clearances can be less restrictive and tools may require much less frequent sharpening. The microscopic investigation traced the origins of slivers and revealed the mechanisms of sliver generation. The paper demonstrates that the integration of material microstructure and mechanics is very beneficial for solving a significant manufacturing problem and can greatly improve the process of shearing aluminum alloy autobody sheet.
    publisherThe American Society of Mechanical Engineers (ASME)
    titleSliver Generation Reduction in Trimming of Aluminum Autobody Sheet
    typeJournal Paper
    journal volume125
    journal issue1
    journal titleJournal of Manufacturing Science and Engineering
    identifier doi10.1115/1.1540113
    journal fristpage128
    journal lastpage137
    identifier eissn1528-8935
    keywordsAluminum
    keywordsClearances (Engineering)
    keywordsBlades
    keywordsCutting
    keywordsSteel sheet
    keywordsAluminum alloys AND Manufacturing
    treeJournal of Manufacturing Science and Engineering:;2003:;volume( 125 ):;issue: 001
    contenttypeFulltext
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