中文摘要：

在磨擦进程，磨液体为芯片涌出的目的被交付，冷却，工作的润滑油，和化学保护出现。由于磨擦车轮的 highspeed 旋转，空气的边界层在磨擦车轮附近形成并且移动大多数磨擦液体离开磨擦地区。因此，交付与高液体充满交货的冷却剂液体的常规方法压力和嘴液体完成高效磨擦的稀罕供应冷却剂液体。磨擦典型地交付大量磨擦液体的洪水是无效的，特别在磨条件的高速度下面。在纸，一个理论模型为在 highspeed 精确磨擦通过磨擦地区磨液体的流动被介绍。模型证明流动通过在车轮和细工品表面之间的磨擦地区评价不仅取决于车轮孔和车轮速度，而且取决于嘴容量的流动率和液体喷气速度。而且，模型被磨机器以便在实验和理论之间相关的表面测试。因而，有用流动率模型被发现与试验性的结果给一个好协议，模型能很好在高速度的精确磨擦预报有用流动率。

英文摘要：

In the grinding process, grinding fluid is delivered for the purposes of chip flushing, cooling, lubrication, and chemical protection of the work surface. Due to the high- speed rotation of the grinding wheel, a boundary layer of air forms around the grinding wheel and moves most of the grinding fluid away from the grinding zone. Hence, the conventional method of delivering coolant fluid that floods delivery with high fluid pressure and nozzle fluid rare supply coolant fluid to achieve high performance grinding. The flood grinding typically delivering large volumes of grinding fluid is ineffective, especially under high speed grinding conditions. In the paper, a theoretical model is presented for flow of grinding fluid through the grinding zone in high- speed precision grinding. The model shows that the flow rate through the grinding zone between the wheel and the workpiece surface not only depends on wheel porosity and wheel speed, but also depends on nozzle volumetric flow rate and fluid jet velocity. Furthermore, the model is tested by a surface grinding machine in order to correlate between experiment and theory. Consequently, the useful flow-rate model is found to give a good agreement with the experimental results and the model can well forecast the useful flow-rate in high-speed precision grinding.