[B-5-1] Development of Control Method by Variation Range of Gap Voltage in Multi-wire EDM Slicing with Group Power Supplying 〇Tomoya Takegawa1, Shusei Tabuchi1, Yasuhiro Okamoto1, Akira Okada1, Haruya Kurihara2 (1.Okayama University, 2.Makino Milling Machine Co., Ltd) Keywords:EDM/ECM/others、Multi-wire、Kerf width、Gap control、Gap voltage