用切削颤振的极限切削宽度来衡量机床的动态特性,会受到稳定性图上早垂状规律所产生的误差以及颤振阈限不准的误差等因素的影响,使判别精度下降。依靠切痕信息,既能准确地确定颤振阈限,又能对试验得到的极限切削宽度值作合理修正,从而大幅度提高机床动态特性的判别精度。 The cutting width of the cutting chatter to measure the dynamic characteristics of the machine tool will be affected by the stability of the pattern of early draping the error and the chatter threshold error and other factors, so that the accuracy of decline. Rely on the cutting information, not only the flutter threshold can be determined accurately, but also the reasonable value of the limit cutting width can be corrected, which can greatly improve the accuracy of machine tool dynamic characteristics.