Abstract
Work-piece profile and dimensional errors are caused by the following three major factors: elastic deflection between wheel and work-piece, wheel wear, and thermal deformation of work-piece. This paper aims to clarify comprehensively and quantitatively the effect of these factors on the accuracy of a work-piece produced by one-pass creep feed grinding ( cfg). Among these factors, the effect of the thermal deformation of the work-piece has not been well understood because of the inherent difficulty in predicting the temperature distribution of the work-piece. In the present study, the work-piece temperature distribution is analysed by a three-dimensional finite element method ( fem) where the cooling effect of the coolant is measured and the energy transfering as heat into the work-piece is timated by Jaeger's moving heat theory extended to include the cooling effect. From this, the thermal deformation of the work-piece is estimated by Jaeger's moving heat theory extended to include the cooling effect. From this, the thermal deformation of the work-piece is also predicted by fem.
Published Version
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