超音波振動を付与した複合材料の切削加工(機械要素,潤滑,工作,生産管理など)

概要

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Nowadays many kinds of composite material are used in industrial fields because of their advantages in mechanical properties. Carbon fiber reinforced plastic (CFRP) is one of the composite materials and it has started to be applied for various mechanical structures and components, where high rigidity with light in weight is required. However, it is difficult to machine CFRP with high efficiency. The main difficulties are poor machined surface quality and short tool life. In order to cope with these problems, it is proposed in this study to apply ultrasonic vibration in cutting. The performance of vibration cutting was evaluated in terms of cutting force, burr formation, surface roughness, and tool life. It has been made clear that the effect of ultrasonic vibration depends on the relationship between the cutting distance during one period of the tool vibration and the diameter of the fibers. Through cutting with ultrasonic vibration, better surface quality can be achieved and the tool life can be extended.
2003-06-25