Machine Vibration: Causes and Corrective Actions
Machine vibration during deep hole drilling causes chatter marks on the bore surface and reduces tool life. I have traced most vibration problems to three root causes: foundation issues, worn bearings or drive components, and workpiece resonance. Each cause produces a different vibration pattern, and identifying the pattern is the first step toward a fix. Vibration Diagnosis by Pattern I have learned to recognize vibration patterns by observing the chatter marks on the bore surface and feeling the machine during operation. The following table summarizes the patterns I have encountered and their most likely causes. ...