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Letter 7001
Electropolishing a
solution?
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I'm running a progressive die in a stamping operation which
produces silver rivets formed in place on a brass substrate by
heading silver wire. I need to clean out the 90/10 silver/cadmium
oxide from the cavities of the heading punches. The punches are
carbide with highly polished cavities. The silver seems to
mechanically plate onto the heading surface and is extremely
difficult to polish out. I'm wondering if electropolishing is a
practical alternative to clean these tools. If so how might I proceed
or who might guide me?
Ed Brant
Pass & Seymour legrand - Whitsett, North Carolina
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This appears to be an application where Arm & Hammer ARMEX, a
baking soda based method of mild abrasive cleaning might work.
W. Carl Erickson
- Rome, New York
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