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    Finite Element Modeling of Burr Formation Process in Drilling 304 Stainless Steel

    Source: Journal of Manufacturing Science and Engineering:;2000:;volume( 122 ):;issue: 004::page 612
    Author:
    Y. B. Guo
    ,
    D. A. Dornfeld
    DOI: 10.1115/1.1285885
    Publisher: The American Society of Mechanical Engineers (ASME)
    Abstract: A 3D finite element model was developed for the simulation of drilling burr formation processes of 304L stainless steel. The nonlinear thermo-elastic-plastic model simultaneously accounts for dynamic effects of mass and inertia, strain hardening, strain rate, automatic mesh contact with friction capability, material ductile failure and temperature-mechanical coupling. Material ductile failure criteria were proposed to simulate drilling burr formation. Based on a series of stress contours and the progressive deformation of the workpiece edge obtained from simulation, a drilling burr formation mechanism was proposed and divided into four stages: initiation, development, pivoting point, and formation stages with cap formation. The burr thickness is largely determined by the distance between the pre-defined machined surface and the pivoting point, while the burr height is determined by the positions of the pivoting point and the cap formation. The FEM simulation demonstrates the dominant roles of negative shearing and bending mechanisms in the drilling burr formation process. The simulation results coincide with phenomenological observations of burr geometry from drilling 304 stainless steel and plasticine work materials. [S1087-1357(00)01202-8]
    keyword(s): Drilling , Finite element analysis , Stainless steel , Modeling , Drills (Tools) , Deformation , Geometry , Stress , Simulation , Finite element methods AND Failure ,
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      Finite Element Modeling of Burr Formation Process in Drilling 304 Stainless Steel

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    http://yetl.yabesh.ir/yetl1/handle/yetl/123932
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    contributor authorY. B. Guo
    contributor authorD. A. Dornfeld
    date accessioned2017-05-09T00:02:48Z
    date available2017-05-09T00:02:48Z
    date copyrightNovember, 2000
    date issued2000
    identifier issn1087-1357
    identifier otherJMSEFK-27431#612_1.pdf
    identifier urihttp://yetl.yabesh.ir/yetl/handle/yetl/123932
    description abstractA 3D finite element model was developed for the simulation of drilling burr formation processes of 304L stainless steel. The nonlinear thermo-elastic-plastic model simultaneously accounts for dynamic effects of mass and inertia, strain hardening, strain rate, automatic mesh contact with friction capability, material ductile failure and temperature-mechanical coupling. Material ductile failure criteria were proposed to simulate drilling burr formation. Based on a series of stress contours and the progressive deformation of the workpiece edge obtained from simulation, a drilling burr formation mechanism was proposed and divided into four stages: initiation, development, pivoting point, and formation stages with cap formation. The burr thickness is largely determined by the distance between the pre-defined machined surface and the pivoting point, while the burr height is determined by the positions of the pivoting point and the cap formation. The FEM simulation demonstrates the dominant roles of negative shearing and bending mechanisms in the drilling burr formation process. The simulation results coincide with phenomenological observations of burr geometry from drilling 304 stainless steel and plasticine work materials. [S1087-1357(00)01202-8]
    publisherThe American Society of Mechanical Engineers (ASME)
    titleFinite Element Modeling of Burr Formation Process in Drilling 304 Stainless Steel
    typeJournal Paper
    journal volume122
    journal issue4
    journal titleJournal of Manufacturing Science and Engineering
    identifier doi10.1115/1.1285885
    journal fristpage612
    journal lastpage619
    identifier eissn1528-8935
    keywordsDrilling
    keywordsFinite element analysis
    keywordsStainless steel
    keywordsModeling
    keywordsDrills (Tools)
    keywordsDeformation
    keywordsGeometry
    keywordsStress
    keywordsSimulation
    keywordsFinite element methods AND Failure
    treeJournal of Manufacturing Science and Engineering:;2000:;volume( 122 ):;issue: 004
    contenttypeFulltext
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