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EFFECT OF PROCESS PARAMETERS ON THE GRINDING OF POLYMERIC COMPOSITES

The present paper discusses and compares the results of two similar studies that were carried out in the U.S. and Egypt simultaneously. The objective in both cases was to validate a previously published mathematical model (1-3), which describes the process of grinding polymeric composites by dimensionless numbers. Cylindrical grinding was carried out by means of a precision lathe and a grinding attachment in the U.S., while an industrial cylindrical grinding machine was employed in the experiments performed in Egypt. This allowed investigating a wide range of values for each process parameter, thus enabling the optimal conditions of the grinding of polymeric composites to be determined. Expressing the grinding process quantitatively by a non-dimensional number provides the flexibility of selecting a value for one of the variable and determining the values of the other variables to yield best ground surface quality and closest tolerances.