Abstract
An MQL method can realize ecologically-friendly machining by suppression of amount of supplied coolant. However, we must consider alternative chip control method because the MQL method has only a poor chip disposal performance. Authors proposed a novel machine tool with chip-suctioning system by use of hollow cutting tool. In this study, a prototype drill suitable for the chip-suctioning system was developed. From some experiments, the developed drill successfully functioned as chip-suctioning tool in practical drilling condition.
