The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 04, 2012
Filed:
Nov. 23, 2004
Yuanfeng Luo, Shanghai, CN;
Renwei Yuan, Shanghai, CN;
Kelvin Junwen Wang, Shanghai, CN;
Bin Wei, Mechanicville, NY (US);
Michael Scott Lamphere, Hooksett, NH (US);
Yuanfeng Luo, Shanghai, CN;
Renwei Yuan, Shanghai, CN;
Kelvin Junwen Wang, Shanghai, CN;
Bin Wei, Mechanicville, NY (US);
Michael Scott Lamphere, Hooksett, NH (US);
General Electric Company, Niskayuna, NY (US);
Abstract
A method for monitoring machining in an electroerosion assembly having a power supply and an electrode arranged across a gap from a workpiece, includes measuring a voltage at a point in a voltage waveform after a time delay tof one half of a pulse width of the voltage waveform. The measurements are repeated for multiple pulses of the voltage waveform to obtain multiple voltages, each of the voltages corresponding to a point in respective pulses. The voltages are averaged to obtain an average voltage, which is compared with at least one threshold voltage, to determine whether the machining is in control. A control signal is generated if the comparison indicates that the process is not in control, the control signal being configured to regulate an operating parameter of the power supply, and the control signal is supplied to the power supply, if generated.