本文介绍了工件两面同时精磨的过程。该工艺在平面度、平行度、表面光洁度和尺寸方面达到了显著的精度。“精细”一词与车轮的粒度（从150到400粒度）和操作类型有关，也就是说，它适用于需要严格公差和小心处理的精细工作，而不是用于拱起大量库存的拱起操作。与传统的平面磨床和圆盘磨床不同，精磨工艺利用低速运转的细砂砂轮的平面。由于平面研磨表面与工件的自由浮动和两个平面研磨砂轮的自对准相结合，从而实现了精度。

THIS PAPER DESCRIBES THE PROCESS OF FINE SURFACE GRINDING BOTH SIDES OF WORKPIECES SIMULTANEOUSLY. THE PROCESS ACHIEVES REMARKABLE ACCURACIES FOR FLATNESS, PARALLELISM, SURFACE FINISH AND SIZE. THE TERM FINE RELATES TO THE GRIT SIZE OF THE WHEELS (FROM 150 TO 400 GRIT) AND TYPE OF OPERATION, THAT IS, IT IS INTENDED FOR FINE WORK WHICH NEEDS CLOSE TOLERANCES AND CAREFUL HANDLING, RATHER THAN A HOGGING OPERATION INTENDED TO HOG OFF LARGE AMOUNTS OF STOCK. UNLIKE CONVENTIONAL SURFACE GRINDERS AND DISC GRINDERS, THE FINE GRINDING PROCESS UTILIZES THE FLAT SIDES OF FINE GRIT GRINDING WHEELS RUN AT SLOW SPEEDS. ACCURACY IS ACHIEVED DUE TO THE FLAT ABRASIVE SURFACES COMBINED WITH FREE-FLOATING OF THE WORKPIECES AND SELF- ALIGNMENT OF THE TWO FLAT ABRASIVE GRINDING WHEELS.