| 摘要 |
Method for controlling an electric discharge machining process, wherein a tool electrode is moved relatively to a workpiece with a working gap distance, wherein the process comprises a current and at least one previous erosion cycle, the current and the previous erosion cycle each being divided into predetermined time intervals each comprising at least one discharge pulse, wherein similar working gap conditions are present within a time interval of the previous erosion cycle and of the current erosion cycle, and wherein subsequent erosion cycles are separated by a process pause cycle, the method comprising the steps of: measuring a value of a significant process parameter within a time interval of the previous erosion cycle, the significant process parameter being indicative of the working gap distance; determining a deviation value based on the measured value and a desired value of the significant process parameter of the time interval of the previous erosion cycle; and in the current erosion cycle, controlling the relative movement of the tool electrode in the erosion direction within the time interval of the current erosion cycle based on the deviation value determined for the time interval of the previous erosion cycle and at least one instantaneous process parameter being indicative of the instantaneous process conditions.
|
