The Influence of Threshold Forces on Size, Roundness and Contour Errors in Precision Grinding

Hahn, R. S.

doi:10.1016/s0007-8506(07)60936-6

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Dynamic Cutting Force1

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2021

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Cited by 12 publications

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“…Contact stiness K c and threshold force F n0 are dependent on the workpiece and the grinding wheel. In this paper, they are obtained from the experimental results of Hucker et al [15] and Hahn [16]. Tangential force F t can be obtained from the following relation equation with normal force [17]:…”

Section: Dynamic Cutting Forcementioning

confidence: 99%

Effects of stiffness and damping coefficients of the spindle bearing on the dynamics of the cylindrical plunge grinding process

Ahn

Kim

Choi³

et al. 2001

Proceedings of the Institution of Mechanical Engineers, Part B:

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This paper presents a multi-degree analysis of self-excited vibrations of a grinding system including the spindle and the workpiece rotational effects. A dynamic analysis was carried out for an external cylindrical plunge grinding process. Governing equations were derived by applying a finite element method to the rotor structure of the spindle and workpiece, and the grinding force was modelled using empirical equations. By computerizing this model, the displacement of the workpiece and grinding force were simulated with machining time. The simulation predicts the effects of the stiffness and damping coefficients of the spindle bearing on the displacement and grinding force. The effects on the chatter growth rate are also presented.

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Section: Dynamic Cutting Forcementioning

confidence: 99%