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Up Topic Welding Industry / Metallurgy / Macro Etch for Copper Welds
- - By OBEWAN (***) Date 06-14-2012 18:48
What is a good macro etch for laser welds on copper?

Is ferric chloride in water - HCl best?  We have tried a few different acid mixes with less than desired results.

What is the ASTM suggestion?  I think we have tried 50-50 Nitric and HCl in water but it is still too gentle.

What about straight undiluted acid on the weld?  This one is dangerous I think. And, it might just turn black.
Parent - By OBEWAN (***) Date 06-17-2012 21:15
This was answered in the technical forum.

Please continue any discussion on that thread.
Up Topic Welding Industry / Metallurgy / Macro Etch for Copper Welds

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