发明名称 |
Method and apparatus for electric discharge machining. |
摘要 |
<p>Method and apparatus are disclosed for electric discharge machining of workpieces on a mass production basis with adaptive feedback control to achieve accurate machining of a feature to a specified size. After machining a feature, it is measured to obtain a value which represents its size. An EDM process parameter is adjusted in accordance with the measurement value so that the next feature will be machined with the size closer to the specified size. Multiple features are machined in succession and the measurement values of successive features are analyzed to determine the trend of change of the values with respect to the specified size. The parameter, such as spark energy, is adjusted in a sense which tends to cause the succeeding features to be machined more accurately to the specified size.</p> |
申请公布号 |
EP0406918(A2) |
申请公布日期 |
1991.01.09 |
申请号 |
EP19900116080 |
申请日期 |
1986.08.18 |
申请人 |
RAYCON CORPORATION |
发明人 |
HOLLAND-MORITZ, DAVID KARL C/O MR. T.E. DENHAM;KENNEDY, THOMAS MARTIN;RUPERT, GARY FRANCIS C/O MR. T.E. DENHAM |
分类号 |
B23H1/02;B23H1/00;B23H7/20 |
主分类号 |
B23H1/02 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|