THE DETECTION AND COMPENSATION OF TOOL WEAR IN-PROCESS

In this paper, a convenient and efficient method to detect and compens ate tool wear automatically on Line is studied. A simplified discrete- time mathematical model is established and a recursive filter algorith m is deduced. By separating the detected signal from random noise, the dimensional deviation information of workpiece caused by tool wear in cutting process can be obtained. A suitable control strategy is appli ed to compensate and correct the position parameters of cutting tools and consequently improve the accuracy in CNC lathe operation.