在金属切削加工中,刀具和工件经常发生振动。特别是在小孔镗削加工中,刀杆的径向尺寸受加工孔径的限制,往往比较细。细而悬伸长的刀杆(悬伸比>4),在镗削过程中更容易引起振动。我们的加工对象为不锈钢壳体件(图1),形状复杂,精度要求高。它上面的孔原来采用通用机床加工,先在车床上镗孔,然后靠磨、研磨和抛光来保证加工精度。不少零件因最后达不到精度要求而成为废品,有时不得不 In metal cutting, the tools and workpieces often vibrate. Especially in the hole boring process, the radial size of the arbor by the processing aperture restrictions, often relatively small. Long and thin rod hanging overhang (overhang ratio> 4), boring process is more likely to cause vibration. Our processing object is stainless steel shell parts (Figure 1), the shape of complex, high precision. The hole above it was originally machined with a universal machine, boring first in the lathe and then by grinding, grinding and polishing to ensure machining accuracy. Many parts due to the final precision requirements and become a waste, and sometimes had