EFFECTS OF TOOL WEAR ON VIBRATION IN TURNING

Abstract

In machining, cutting tool wear has great effects on the product quality as well as on the machining productivity. This paper presents a method for determining the amount of wear and the durability of a cutting tool through the control of tool vibration parameters. During the experiment, every 3 minutes, the machining process was stopped and then the amount of tool wear was measured. During each machining  process, the vibration of the tool was measured and collected for offline analysis. The results showed that, at the initial wear stage, tools were worn quickly, and the vibration parameters were not stable. After a certain period of machining, the tool wear rate is stable and the vibration parameters are also stable. After that, the amount of wear increases rapidly, while the vibration parameters increase rapidly. These results allow to confirm that the cutting tool's vibration parameters (velocity, acceleration and amplitude) can accurately reflect the typical three wear stages of a tool. This is a durable age control evaluation and control option that has a smaller investment cost and is simpler with the use of a load cell to determine the durable age of the tool today.