超精密切削過程のシミュレーション解析(第2報) : アルミニウム単結晶切削過程のシミュレーション的予測

概要

論文の詳細を見る
As machined surface characteristics are greatly affected by a cutting mechanism, a prediction method of the mechanism is required for obtaining the appropriate characteristics. The paper discribes a method for predicting cutting performances of aluminum single crystal in low cutting speed. A flow stress is discussed by slip system theory of single crystal. A single crystal may be considered as a material with orthogonal anisotropy. The change of anisotropy by straining is also introduced through simple shear tests. The friction characteristic equation on tool rake face is also proposed. The simulation analyses of cutting process on aluminum single crystal are finally carried out using FEM calculation including orthogonal anisotropy. The alternations of shear angle, friction angle etc. with each cutting direction for the single crystal are obtaied through the simulation. These analytical results are compared with those of fine cutting experiments which are carried out in SEM.
公益社団法人精密工学会の論文
1991-05-05