Dry surface grinding tests have shown a large difference in the number of passes to workpiece burn between structurally identical single and polycrystal Al2O3 vitrified grinding wheels. Special composite grinding wheels were designed and built to observe sequentially wear flat development in the scanning electron microscope. No difference in wear mechanisms was found for the two types of wheels. The difference in grinding performance is explained in terms of the number active cutting points per unit area and the dislodgment of dressing damage.
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An Evaluation of Grinding Performance for Single and Polycrystal Grit Aluminum-Oxide Grinding Wheels
James A. Kirk
Department of Mechanical Engineering, University of Maryland, College Park, Md.
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Kirk, J. A. (February 1, 1976). "An Evaluation of Grinding Performance for Single and Polycrystal Grit Aluminum-Oxide Grinding Wheels." ASME. J. Eng. Ind. February 1976; 98(1): 189–195. https://doi.org/10.1115/1.3438815
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