Host: The Japan Society of Mechanical Engineers
Name : [in Japanese]
Date : November 13, 2017 - November 17, 2017
This study deals with the expansion of the diameter of a hole fabricated on the inside wall of another straight hole by means of electrical discharge machining. Although our research group has developed devices which can machine a hole inside another hole, the shape of the fabricated hole has been limited. Aiming to diversify the hole shape, this study has improved the device so that it can machine such a hole with a larger diameter. The experimental results indicate that such a hole with about 3.3 times diameter can be fabricated. As a result, it is proven that the improved device has the ability to machine a hole with a larger diameter inside another hole.
