Electrochemical machining (stem drilling)  

Letter 42067

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Would nickel tubing work for the stem drilling process (electrochemical machining) in place of titanium and ss tubing for deep hole drilling in alloy materials.

Andrew Cousins
ac - Houston, Texas

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To answer your question, no. Teflon coated Titanium is the only material to be used for STEM. I have done STEM work for over seven years until recently.

James Bookless
- Stuart, Florida

September 21, 2009

hey I know this guy and he's right. Teflon coated titanium cathodes are the only thing that will work.

Mike Firpo
- rutland vermont

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