Electrochemical machining of scroll wraps

Details Electrochemical machining of scroll wraps Electrochemical machining of scroll wraps

C - Chemistry, Metallurgy

25

F

C25F 3/02 (2006.01) B23H 9/12 (2006.01) C25F 7/00 (2006.01) F01C 1/04 (2006.01) F04C 2/04 (2006.01) F04C 18/02 (2006.01) F04D 29/00 (2006.01)

Patent

CA 2114393

A method and apparatus for electrochemically machine lapping a matched set of fixed and orbiting scroll members for use in a scroll compressor. The orbiting scroll member is orbited in a short stroke relative to the fixed scroll member while an electrolyte is pumped between the scroll wraps. An electric current is passed through the fixed and orbiting scroll wraps to thereby electrochemically machine away high profile areas on corresponding metal wear surfaces. During the machining process, the clearance spacing between the scrolls is tightly controlled to prevent contact between the scrolls.

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