| 摘要 |
PCT No. PCT/JP84/00513 Sec. 371 Date Jun. 25, 1985 Sec. 102(e) Date Jun. 25, 1985 PCT Filed Oct. 26, 1984 PCT Pub. No. WO85/01907 PCT Pub. Date May 9, 1985.An wire electrode cooling apparatus in a wire cut discharge machine is provided for supplying a working fluid to a guide member which guides a wire electrode therethrough and cools the wire electrode. The working fluid is supplied to the guide member through a flow control valve. The opening of the flow control valve is controlled automatically or manually, either depending upon the pressure of the working fluid which changes in accordance with the electric spark forming speed. The pressure of the working fluid is optimally maintained at the electric spark forming region for high- and low-speed electric spark forming. At the same time, the flow rate of the working fluid supplied to the guide member is optimized, thereby preventing the wire electrode from being disconnected.
|
