• Title/Summary/Keyword: Axial Motion of Workpiece

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Modeling of the Centerless Through-feed Grinding Process

  • Kim, Kang
    • Journal of Mechanical Science and Technology
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    • v.17 no.7
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    • pp.1036-1043
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    • 2003
  • A computer simulation method for investigating the form generation mechanism in the centerless through-feed grinding process is described. The length of the contact line and the magnitude of the grinding force between the grinding wheel and workpieces, vary with the change in the axial location of the current workpiece during grinding. Thus, a new coordinate system and a grinding force curve of previous and/or following workpieces are introduced to treat the axial motion. Experiments and computer simulations were carried out using four types of cylindrical workpiece shapes. To validate this model, simulation results are compared with the experimental results.

Modeling of the Axial Movement of Parts During Centerless Through-Feed Grinding

  • Kim, Kang
    • Journal of Mechanical Science and Technology
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    • v.17 no.7
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    • pp.1044-1053
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    • 2003
  • There are two major differences between the centerless infeed grinding process and the centerless through-feed grinding process. One is an axial movement of workpieces, and the other is that several workpieces are ground simultaneously and continuously by through-feeding. Because of these differences, through-feed ground parts inherently possess not only the roundness error but also the tapering error. The aims of the research reported in this paper are to examine this inherent tapering characteristic and to find the effects of grinding variables (center height angle, regulating wheel tilt angle, and shape of grinding wheel surface). To accomplish the objectives, experiments were carried out using two types of cylindrical workpiece shapes. Also, computer simulations were performed using the 3-D through-feed grinding model.

3-D Form Generation Mechanism in the Centerless Grinding Process (II) -Thrufeed Grinding- (무심 연삭 공정의 3차원 형상화기구 (II) -관통 연삭-)

  • Kim, Kang;Joo, Jong-Nam
    • Journal of the Korean Society for Precision Engineering
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    • v.15 no.5
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    • pp.137-144
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    • 1998
  • A mathematical model for investigating the form generation mechanism in the centerless thrufeed grinding process is described. The length of the contact line and the magnitude of the grinding force between the grinding wheel and workpieces vary with the change of the axial location of the current workpiece during grinding. Thus, a new coordinate system and a grinding force curve of previous and/or following workpieces are introduced to treat the axial motion. Experiments and computer simulations were carried out using three types of cylindrical workpiece shapes. To validate this model. simulation results are compared with the experimental results.

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