| Patent Number |
Title Of Patent |
Date Issued |
| 5253178 |
Wire-type electrical discharge machining method and apparatus |
October 12, 1993 |
| An electrical discharge machining system is improved by incorporation of an apparatus which permits a machining core to be subdivided into a plurality of sub-cores for separate removal. The invention permits automatic core removal in cases where cores were manually removed in the past, s |
| 5243166 |
Wirecut electrical discharge machine and method of use thereof |
September 7, 1993 |
| A method and apparatus of operating a wirecut electrical discharge machine for cutting a workpiece using a generated electrical discharge in a machining gap wherein the workpiece is opposing a wire electrode. The method comprises the steps of presetting a plurality of machining condi |
| 5038011 |
Wire cut electric discharge machining method |
August 6, 1991 |
| The method of preventing a workpiece from being rocked in the machining groove of a workpiece when the wire electrode approaches the final discharge-machining point. As a result, the remaining core can be removed positively and machining accuracy is improved. |
| 5006691 |
Wire cut electric discharge machine |
April 9, 1991 |
| A wire cut electric discharge machine which is capable of taper-machining with high accuracy. A correction factor which is to correct errors attributing to a special purpose jig is obtained according to a difference between an aimed angle and an actual taper angle of a test workpiece whi |
| 4996406 |
Core retaining apparatus for wire-cut electro-discharge machine |
February 26, 1991 |
| A core retaining apparatus for a wire-cut electro-discharge machine which is capable of effectively and reliably retaining a core cut out of a workpiece by wire-cut electro-discharge machining when the core is removed to a position outside the machining area. The core retaining apparatus |
| 4686344 |
Wire guide for electrode discharge machining |
August 11, 1987 |
| A pair of guide devices 5, 6 for the wire electrode 1 in a discharge machining apparatus are disposed just above and below a workpiece 3. Each device includes three or more equally circumferentially spaced guide rings 8, 9, 10 surrounding the electrode and biased outwardly by tension spr |
