Electric heating – Metal heating – Cutting or disintegrating
Patent
1995-10-31
1999-10-26
Evans, Geoffrey S.
Electric heating
Metal heating
Cutting or disintegrating
B23H 720, B23H 714
Patent
active
059732881
ABSTRACT:
A method and an apparatus for controlling a spark erosion process between a workpiece and an electrode for instance a microdrilling electrode, so that the erosion process becomes less susceptible to a malfunction, in that at least one process parameter is measured along a first test interval of the section to be eroded, at least one control value is deduced form the measured values, and this control value is used in a subsequent erosion interval of the section to be eroded. The control value is preferably used for controlling a suitable feed rate of the electrode. The susceptibility to malfunctions is further lessened, in that a differentiation is made between mechanical and other short circuits and in that the electrode movement is controlled differently for mechanical short circuits than for other short circuits.
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Abridged English language translation of Japanese Patent Appln. Publication No. 57-75,727,No Publication Date.
Abridged English language translation of Japanese Patent Appln. Publication No. 59-53124, No Publication Date.
English translation of Japanese Office Action citing JP OS 2-592239. No Publication Date of Japanese Office Action.
Derwent Abstract corresponding to 59-53124.
Derwent Abstract corresponding to 57-75,727.
Boccadoro Marco
Marchesi Alberto
AGIE SA
Evans Geoffrey S.
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