鉛直方向振動を利用した外周刃切断の力学的検討に関する研究

抄録

When mechanical processing like slicing or dicing is made on hard and brittle materials by means of OD-Blade, many problems such as machining efficiency, machining accuracy, machining cost and tool life are pointed out because this method uses fixed diamond grains. However, as it is understood as the most general method for precision cutting, establishment of new machining methods which ensure high efficiency and accuracy is prospective. In this paper, authors contrived a new cutting method applying a low-frequency vibration on the workpiece side during cutting and the vibration direction was vertical (Z-axis direction) to the cutting feed direction (X-axis), and made the characteristics of vibration cutting clear. Not only authors proposed that the contact force was occurred by keeping the contact position between OD-Blade and the workpiece, but also it was found that the contact force depended on an area of contact-arc. Furthermore, as a result of dynamical considerations on the mechanism of vibration cutting between OD-Blade and the workpiece, it was clear that the vibration cutting brought out the decreasing effect of grinding force through decrease of contact force.