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The lack of a satisfactory methodology to predict the tool-wear progression/tool-life in a machining operation with a grooved tool necessitates development of quantitative predictive models for tool-wear. This paper presents a new methodology for decomposing and distributing the resultant force generated in machining with a grooved tool within the three major tool-wear regions: edge region, secondary-face...
This paper presents a new methodology for predicting the most dominant tool failure modes in turning with complex grooved tools. Predictions are made using a newly developed equivalent toolface (ET) model. The changes in cutting conditions and chip-groove geometry are reflected in the cutting forces. The ET model predicts the 'equivalent flat-faced' tool geometry from the cutting forces in terms of...
This paper presents a systematic approach towards understanding of the tool-wear mechanisms in grooved tool inserts based on chip-flow patterns. It has been observed through high-speed filming experiments and scanning electron microscopy that improper design of chip-groove geometry and/or inappropriate application of the cutting conditions result in @'undesirable@' chip-flow patterns and consequent...
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