| 摘要 |
PURPOSE:To improve electrospark machining speed by supplying swirling working liquid to a working gap between a wire electrode and a workpiece. CONSTITUTION:Working liquid supply nozzles 100 are disposed to be opposed to each other at both sides of a workpiece 4 and supply working liquid 2 to a working gap G for the workpiece 4. A plurality of blades 100a for giving a swirl to working liquid flowing on the inner peripheral surface of the end of the nozzle 100 are provided. And these nozzles 100 are supported rotatably on a support bed 101 having a dies carrier 6 attached through a pair of bearings 106, 107. Further, a large gear 105 is secured integrally to the outer peripheral surface of the nozzle 100 to support rotatably the nozzle 100. Thus, the discharge of worked powder to the outside is promoted by swirling working liquid to improve the electrospark machining speed.
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