パルス電流を用いたワイヤカット電解加工法の加工速度

概要

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The present paper deals with feed rate of wirecut electrochemical machining. The effect on the feed rate was investigated of various parameters; velocity of the electrolyte fiow, diameter of the nozzle, material, diameter and tension of the wire, pulse period and peak value of the applied voltage, etc. On the assumption that the rate is limited by accumulation of generated sludge of gas, the equation of the rate and the favorable pulse period are derived and verified experimeptally. The rate is proportional to [(E- AE)v/ W) l/2 (E; applied voltage. AE; decomposition voltage, v; electrolyte.velocity. W; thickness of workpiece). The rate can be improved by applying shorter pulse period than the residential time W/v of the electrolyte. Above the critical electrolyte pressure, at which the feed rate shows maximun value, the unfavorable effect of the wire vibration cannot be neglected. , Counter-measures to prevent it are as follows; (a) reductioh of nozzle diameter and , length of wire span, (b) increase in a lied voltage and wire tension.
公益社団法人精密工学会の論文
1983-06-05