動的陽解法弾塑性FEMによる三次元切削過程のシミュレーション : 計算手法の開発と旋削加工シミュレーションへの適用

概要

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This paper presents a simulation method for 3-dimensional cutting processes. It is based on dynamic-explicit elastic-plastic FEM and forward Euler algorithm for heat transfer analysis. Because simultaneous equations of stiffness is not necessary for the methods, they are suitable for a FE model including a lot of nodes. We have proposed an efficient technique to include the effect of heat transfer to the tool, The method has been applied to the turning simulation of carbon steel (S15C). In the chip formation process, the side-curl has been observed mainly. This tendency agrees with one in the experiment. The cutting force has been also compared between the simulation result and experimental one in the steady state, and they roughly agree. The distributions of temperature on the tool rake face show the complicated process of heat transfer in the transitional state.
公益社団法人精密工学会の論文
2000-03-05