有限要素法と光弾性法による拘束工具刃先の応力解析に関する研究

抄録

In this paper, the photoelastic apparatuses are attached to the lathe and fed with the cutting tool concurrently. To prevent wear of the cutting tool the cutting speed was selected with 0.1m/min. After using the tool, the edge of the tool was scrutinized for wearing out. The condition of rake angle are α=0° with normal and restricted tool. The restricted tool was placed with 30° restricted angle of rake. This experiment was done after confirming the shape and size of the tool by using a profile projector. The analysis principle and calculation order by FEM is to divide orthogonal continuous material into quadrilateral element. The principal stress of the restricted and normal tool is maximum at the tip of tool, the shear stress is maximum after a certain distance from the tip. The result of FEM and photoelastic method shows that in the range of rapid decreasing normal stress of the tool edge, the shear stress is maintaining a certain value. And FEM value for stress analysis of tool face during cutting is in accordance with the result of photoelastic experiment well and the possibility of stress analysis of tool rake surface by theoretical analysis without trial was proved. Nomenclature