在现场机械设备维修中，常要压合修理。由于压配后产生了在弹性变形范围内的径向变形．自然会影响原设计的装配间隙。为了满足原设计要求，逼迫采用多种精加工方法来重新加工配合尺才．如续孔、刮孔、拉孔和磨削等，使修理工时和成本增加。有些银套压装在箱体中，只能采用人工? In the field of mechanical equipment maintenance, often press fit repair. As a result of the press-fit deformation in the range of elastic deformation. Will naturally affect the original design of the assembly gap. In order to meet the original design requirements, forcing the use of a variety of finishing methods to rework with the scale before. Such as continued hole, scraping holes, holes and grinding, so that repairer time and costs increase. Some silver sleeve pressed in the box, can only use artificial?