Optimization of tool path and cutting condition is very important in different kinds of machining for reducing machining time and improving machining accuracy
In general, a machining centre has an ability to provide sufficient manufacturing precision and efficiency with high adaptability for various types of machining features, but it does not have a function of selecting the optimum tool path for the achieved cutting speed.
Many studies have been conducted for the optimization of tool path in different kinds of machining. Special attention was paid to drilling, one of the most widely used metal machining, and many experimental and mechanical approaches were presented for modelling cutting force based on drill geometry and cutting conditions.
Kim Myong Il, a section head at the Faculty of Mechanical Science and Technology, has proposed an optimization method for drilling the hole clusters in a machining center (MC) on the basis of a cutting force model, in which the tool path is optimized to reduce machining time and power consumption, and cutting condition is optimized to improve machining accuracy. He obtained a predictive model of cutting force from drilling tests using multigene genetic programming (MGGP).
He applied the proposed method to MC for machining trolleybus underframes so that it could provide high machining accuracy and long tool life as well as shorter machining time and low power consumption.
You can find the details in his paper “Optimization of Tool Path and Cutting Condition based on Model of Drilling Force in the Machining Center” in “Proceedings of KUTIC-2025”.