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:
Jul. 12, 2011
Filed:
Jul. 17, 2007
Andrew Lee Trimmer, Latham, NY (US);
Nicholas Joseph Kray, Blue Ash, OH (US);
Joshua Leigh Miller, West Chester, OH (US);
Michael Scott Lamphere, Hooksett, NH (US);
Bin Wei, Mechanicville, NY (US);
Andrew Lee Trimmer, Latham, NY (US);
Nicholas Joseph Kray, Blue Ash, OH (US);
Joshua Leigh Miller, West Chester, OH (US);
Michael Scott Lamphere, Hooksett, NH (US);
Bin Wei, Mechanicville, NY (US);
General Electric Company, Niskayuna, NY (US);
Abstract
An apparatus and method for hybrid machining a workpiece is disclosed. The workpiece is powered as an anode, a cutter is powered as a cathode and a cutting fluid or coolant is circulated therebetween. The cutter is made of a conductive material and a non-conductive abrasive material. The hybrid machine performs a roughing pass machining operation in which material is removed from the workpiece at a relatively high rate using a high-speed electro-erosion (HSEE) process. Then, the hybrid machine performs a finish pass machining operation in which material is removed from the workpiece using precision electro-grinding (PEG) process at a different differential electrical potential and/or flushing rate than the roughing pass machining operation to provide a smooth finish without thermal effects on the workpiece.