A Simple Model for Convective Cooling During the Grinding Process

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Abstract
Heat generated during grinding may cause thermal damage to the workpiece and wheel. To avoid this, grinding fluids are often used, but their effects are not well understood. A simple analytical model of the convective heat transfer between the wheel and workpiece surfaces and the grinding fluid is described. The model predicts the convective heat transfer coefficient at the workpiece surface, the fraction of energy entering the workpiece, and the workpiece surface temperature. Despite its simplicity, the model shows remarkable agreement with published data for conventional and creep feed grinding conditions.

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