This paper develops a new analytical model to predict the chip back-flow angle in machining with restricted contact grooved tools. The model is derived from a recently established universal slip-line model for machining with restricted contact cutaway tools. A comprehensive definition of the chip back-flow angle is presented first, and based on this, a quantitative analysis of the chip back-flow effect is established for a given set of cutting conditions, tool geometry, and variable tool-chip interfacial stress state. The model also predicts the cutting forces, the chip thickness, and the chip up-curl radius. A full experimental validation of the analytical predictive model involving the use of high speed filming technique is then presented for the chip back-flow angle. This validation provides a range of feasible/prevalent tool-chip interfacial frictional conditions for the given set of input conditions.
Analytical Prediction of the Chip Back-Flow Angle in Machining With Restricted Contact Grooved Tools
Contributed by the Manufacturing Engineering Division for publication in the JOURNAL OF MANUFACTURING SCIENCE AND ENGINEERING. Manuscript received July 2000; Revised July 2002. Associate Editor: Y. Artintas.
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Fang, N., and Jawahir, I. S. (April 15, 2003). "Analytical Prediction of the Chip Back-Flow Angle in Machining With Restricted Contact Grooved Tools ." ASME. J. Manuf. Sci. Eng. May 2003; 125(2): 210–219. https://doi.org/10.1115/1.1559159
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