21201 エンドミル加工の生産性評価のための被削物時空間表現手法(生産システムの新展開,OS8 生産システムの新展開)

概要

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In this paper, we propose a new spatial-temporal representation method for sculptured workpiece shape in end milling. In recent days, following advancement of machining technology and cutting conditions, estimation method of machinability based on prediction of physical phenomena is strongly required. Especially, instantaneous cutting force influences success of machining process. Generally, conventional prediction methods for the instantaneous cutting force require accurate explicit information of workpiece shape close to cutting tool. However, workpiece in end milling usually has complicated shape and it is changed by each tool moving step. So, it is difficult to realize workpiece shape estimation with sufficient accuracy in a short time. Then, we propose a new spatial-temporal representation method based on an idea of tool swept volume. It designed to calculate undeformed chip thickness without explicit information of workpiece shape. By adopting the proposed representation method, it is realized that prediction of cutting error distribution on machined surface caused by tool deflection in a short time.
一般社団法人日本機械学会の論文
2006-03-09