Convective Heat Transfer in the Grinding Process: Experimental Aspects

本研究探讨了磨削液的冷却能力 用于常规和缓进磨削条件。 的 目的是分析发生在对流换热 工件表面，并最终预测的分数 保留在工件中的总磨削能量， 工件温度 这项实验工作将解决 四个测量：工件内的温度和在其 表面，磨削液的温度变化， 磨削力和砂轮形貌。 这 研究，结合另一个并行建模工作， 格兰特将允许一个基本的了解热方面的 磨 磨削约占加工的20% 在美国的支出，因此是巨大的 工业重要性。 研磨过程中产生的能量可 造成工件和砂轮的热损伤。 为了避免这种情况， 磨削液是常用的磨削液，但效果不佳 明白 该提案的总体目标是 研究磨削液的冷却能力， 常规和缓进磨削条件， 可以建立预测模型。

This research investigates the cooling ability of grinding fluids for both conventional and creep feed grinding conditions. The objective is to analyze the convective heat transfer occurring at the workpiece surface, and ultimately to predict the fraction of the total grinding energy which remains in the workpiece, and the workpiece temperature. This experimental effort will address four measurements: temperatures within the workpiece and at its surface, the change in temperature of the grinding fluid, the grinding forces, and the grinding wheel topography. This research, combined with a parallel modeling effort in another grant will permit a basic understanding of the thermal aspects of grinding. Grinding accounts for about 20 percent of the machining expenditures in the United States, and is consequently of great industrial importance. Energy generated during grinding may cause thermal damage the workpiece and wheel. To avoid this, grinding fluids are often used, but their effects are not well understood. The overall objective of the proposal is to investigate the cooling ability of grinding fluids for both conventional and creep feed grinding conditions so that a predictive model can be developed.