An on-line tool wear monitoring method based on cutting power

In a CNC batch process, excessive tool wear will lead to a bad surface quality of the final product. On-line tool wear monitoring is recognized as an effective method to reduce the impact of the tool wear on surface quality. In this paper, a cutting power model is firstly established with the consideration of tool wear and cutting parameters. A novel on-line tool wear monitoring approach for CNC batch processing is then proposed and a monitoring system is developed. Result of the case study shows that the proposed approach is effective in tool wear on-line monitoring.