多年来,对机械精密零件孔的超精加工所采取的工艺方法多半是手工研磨和珩磨等。手工研磨虽然能获得很高的光洁度和精度,但是生产效率低,工人的劳动强度大,长孔零件容易出现喇叭口,零件的互换性差。活门偶件衬套孔研磨后,研磨膏不易清洗干净,直接影响我厂航空产品的质量,称研磨膏为影响产品质量的“三害”之一。珩磨对研磨来说,虽然提高了生产效率和加工质 Over the years, the mechanical precision parts of the hole finishing process adopted by most of the manual grinding and honing. Although manual grinding can get a high degree of finish and accuracy, but the production efficiency is low, the labor intensity of workers, long hole parts prone to bell mouth, poor interchangeability of parts. After the hole of the valve coupling bushing is grinded, the abrasive paste can not be cleaned easily, which directly affects the quality of the aviation products of our factory. It is said that the abrasive paste is one of the “three hazards” affecting the product quality. Honing on the grinding, although increased production efficiency and processing quality