Abstract: The empirical development of an indirect drill wear monitoring method in circuit board drilling is presented. Spindle vibration and mean drilling torque were measured using a single spindle ...

Abstract: The potential application of indirect tool wear monitoring methods in circuit board drilling is discussed. Monitoring methods are discussed and the state of tool wear monitoring research is ...

Abstract: The results of automated measurements of flank wear of drills used in circuit board drilling are presented. The measurement technique uses a machine vision system to increase measurement speed ...

Abstract: When processing, recording, and analyzing continuous, analog signals or functions with a digital computer, information is lost when the signals are converted to digital form. When signals are ...