切削工具の衝撃緩和に関する研究 : 第2報過渡状態における衝撃緩和について

概要

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This paper describes the impact restraint abilities of cutting-off tools. Experiments are conducted through comparing the ordinary tools with the tool specially equipped with a spring damper. In this experiment, the tool cuts a work-piece which has a groove. When the tool passes the groove, an impact is induced and the cutting force increases suddenly. The rate of this sudden increase of force is nominated in this paper as the shock index T and is used to evaluate the shock phenomena. The relation among shock index T, the coefficients of damping friction p and spring constant k are examined. The experimental results and discussions show that the spring-damper holder is superior to the other tools in relation to the relaxation of shock. It is considered that the reason is based on the fact that the coefficient of damping friction p of spring-damper holder is higher than that of other holders. From the results in this experiment it is suggested that the lower spring constant of the holders are disadvantage under the static steady cutting.
東海大学の論文