切削力予測モデルに基づくフライス加工状態の認識 : 第1報,最適化手法によるモデル内パラメータの同定と工具摩耗量の推定

抄録

A system is proposed to recognize cutting state in end milling by comparing dynamic cutting force predicted by a mathematical model with the measured cutting force. In order to realize the recognition system, a precise cutting force model is constructed, and a method to identify the most probable parameters in the model is developed by applying the steepest descent method. The actual cutting force is measured with a piezoelectric-type dynamometer, and it is confirmed that the cutting force predicted by the model agrees with the measured one. Monitoring of tool wear is also tried by comparing the predicted force with the measured one.