The Applied Research on b-Value in the Fault Prediction of the CNC Machine Tools 

Jie YU1 , Zhi-yao LI 1 *, Shuang YI 2 , Ning DING1 

1 Mechanical Engineering College of Changchun University, CHINA 

2 Foreign Trade Department of Changchun Vocational and Technical College, CHINA 

Abstract: G-R curve is an important analysis curve on seismic prediction and b-value can reflect the degree of seismic activity of an area. The paper uses G-R curve to analyze the relations between the fault levels and fault frequency of some series of the CNC machine tools. According to the results, we can draw the relations between b and faults occurrence. Thus we can use b-values to predict the faults of the CNC machine tools. 

Keywords: G-R curves; B-value; CNC machine tools; Failure prediction