在修理汽车、拖拉机和农业机械时,经常需要修复磨损量不超过0.08～0.25毫米的滚动轴承与轴或滚动轴承与壳体零件的静配合,对于这些静配合件一般都用电堆焊、金属喷镀、镶套、镀铬等方法来修复,但这些方法比较复杂,修理费用较高,或使零件的疲劳强度降低,而电机械加工法则较为简单,费用低和可靠。 In the repair of cars, tractors and agricultural machinery, often need to repair the wear of not more than 0.08 ~ 0.25 mm of rolling bearings and shaft or rolling bearings and shell parts with the static fit, the static fit parts are generally used for welding, metallization , Inlay, chrome plating and other methods to repair, but these methods are more complicated, repair costs are high, or to reduce the fatigue strength of parts, and electrical machining method is simple, low cost and reliable.