Method and apparatus for electrochemically finishing airfoil...

Details Method and apparatus for electrochemically finishing airfoil... Method and apparatus for electrochemically finishing airfoil...

C - Chemistry, Metallurgy

25

F

204/117, 204/86.

C25F 3/02 (2006.01) B23H 9/02 (2006.01) C25F 3/14 (2006.01) C25F 7/00 (2006.01)

Patent

CA 1158197

ABSTRACT Disclosed is apparatus and method for electrochemi- cally finishing the edges of airfoils and other thin edged objects. When the edge on an airfoil varies in thickness along its length, a tapered electrode is provided which has both a decreased diameter and increased spacing distance, providing a means for obtaining an edge with a radius proportioned to the thickness. Generally, in the system having an electrode with a unit surface area A, and with an electrode-workpiece surface spacing distance S, both A and S vary so that the ratio A/S is lowered for electrode portion proximate to edge portions having lowered thickness.

351880

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