Machining, Measurement, and Control Laboratory

Study on the Control of Tool Life Implemented on Linear Motor Driven Machine Tools
Takuya Shimizu, Soichi Ibaraki, Atsushi Matsubara

In this paper, we apply a cutting force control strategy in a linear motor driven machine tool. The cutting force control strategy that we proposed aims a long-term control of the tool life. First, the cutting force is monitored only at every "check point" set on the tool path. The feedrate profile is updated at every check point, such that the desired cutting distance can be machined before reaching the end of tool life. The effectiveness of the present approach is experimentally investigated based on the estimation of cutting force by using linear motor currents.
Key Words: End milling, Tool wear, Tool life, Intelligent machining