Stamping tin-plated copper strip without lubricant

brixtontech · Apr 14, 2009

I need to stamp parts from annealed C-110 copper strip that is 0.005" thick and hot tin-dipped to 0.0005" thick both sides. The part dimensions are roughly 0.5" x 3.5", and the production volume is around 20 million pieces. Because of down-stream processing of the part I would strongly prefer to stamp the strip without any lubricant. Does anyone have any experience dry stamping this material - or any suggestions on die materials to reduce tooling wear?

CoryPad · Apr 14, 2009

I have no experience, but this seems like a case where diamond-like coating of the die should be considered. It provides both high wear resistance, and low friction coefficient.

unclesyd · Apr 14, 2009

People who made Cu gaskets for us used the TD coating on some of their dies. I would give these people a call with your problem.

http://www.tdcoating.com/

ajack1 · Apr 14, 2009

Balzers are very good well worth a call.

http://www.oerlikon.com/ecomaXL/index.php?site=BALZERS_EN_our_competencies

PeterStock · Apr 28, 2009

One more company to try:

http://www.bokers.com/

Peter Stockhausen
Senior Design Analyst (Checker)
Infotech Aerospace Services

ornerynorsk · May 4, 2009

Zirconia ceramic might be the way to go, although I have to admit I don't know if the tin plate would cause a build up problem or not. PVD Carbide is also another consideration.

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Stamping tin-plated copper strip without lubricant

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