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:
May. 13, 2003
Filed:
Jul. 31, 2001
Applicant:
Inventors:
Michael Scott Lamphere, Hooksett, NH (US);
Roger Barrie Etherington, Boxford, MA (US);
Bin Wei, Mechanicville, NY (US);
Assignee:
General Electric Company, Schenectady, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B23H 3/00 ; C25D 1/700 ;
U.S. Cl.
CPC ...
B23H 3/00 ; C25D 1/700 ;
Abstract
An electromachining apparatus includes a mandrel for supporting a workpiece next to a cutter mounted on an arbor. The workpiece is powered as an anode and the cutter is powered as a cathode, and a coolant is circulated therebetween. The cutter is rotated and plunge twisted into the workpiece to form a twisted slot therein, with adjacent ones of such slots forming twisted blanks therebetween. The individual blanks may then be subsequently machined to final shape such as an airfoil configuration.