| 摘要 |
PURPOSE:To supply the machining fluid uniformly over the machining area so as to improve the machining speed and accuracy by providing a machining fluid outlet opening consisting of either a plurality of small pores or a slit in the axial direction, on the wall of the pipe-shaped wire electrode and by injecting the machining fluid into the hollow part of the wire electrode. CONSTITUTION:A wire electrode 1 is fed to a wire cutter 52, while the air is supplied from air compressors 75, 76 to the upper and lower machining fluid supply tanks 71, 73 and the machining fluid is supplied through the machining fluid supply ports 72, 74 to the tanks. Observing the machining fluid level gauges 77, 78 the pressure regulators of the air compressor 75, 76 are adjusted so that the level gauges 77, 78 will be stabilized. Since the wire electrode 1 is a hollow pipe and provided with a plurality of small pores or with a slit on the wall, the machining fluid is introduced into the hollow part of the wire electrode 1 due to the air pressure of the air compressor 75, 76 and the liquid pressure exerted around the machining fluid supply ports 72, 74, and spouts out from the small pores 2 or from the slit in the electric discharge machining area. Thus even a thick material can be machined at high speed with high accuracy. |
