ワイヤ放電加工の単発放電衝撃力と単発放電加工量

Abstract

Cutting previsions of Wire-EDM are spoiled by a wire vibration and a wire deflection during the machining. In some previous reports, wire behaviors were measured and discussed.As well known, the wire behavior is affected from a explosive force, a electrostatic force, a electromagnetic force by each discharging and a force caused by flushing of water.Especially in these forces, the explosive force by each discharging is the most important and fundamental force. But the strength of the force and the relation between the force and EDM conditions were not cleared in these reports.In this report we investigate about forces affecting on the wire behavior during Wire-EDM. These forces are obtained from wire deflections which are detected by a developed optical fiber slit system. The influence of the flushing pressure and the electrostatic force on wire deflections are discussed, and the strength of the explosive force by each discharging and a machined volume of workpiece by each discharging are obtained.