砥粒切削機構の塑性学的解析(第3報) : 複数の三角形すくい面からなる切れ刃による切削

概要

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This paper presents several cutting models for three dimensional cutting with abrasive grains of two triangular rake faces of plus inclination. The models are designed for continuous chip formation along or across the edge line, incomplete chip formation, wall formation of partial chip or plastic upheaval along the groove cut and separate chip formation by each rake faces. Their deformation may be interpreted as a piling of plane plastic flow. An energy method is developed for the proposed cutting models, which enables to predict the formation and the component of cutting force by using the data in orthogonal cutting under equivalent cutting conditions. Then the cutting force components F_H and F_V are measured and further the transition state between the models are observed by changing the inclination of the 2nd triangular rake face made of sintered carbide in turning experiment. The measured results are in good agreement with the analytical results except for the normal force F_V in the case of model [II, IV] and [VI].
公益社団法人精密工学会の論文
1987-08-05