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Electrochemical etching of Fe Ni Cr AISI steels for "sandblasted" effect

June 7, 2021

Q. I have to avoid deformation of thin metal sheets but need sandblasted-like surfaces for glue processes. Aside from HCl + H2O2 etch or CrO3 + H2SO4 that are standard strong chemical etching processes, there are some milder, electrolytic processes? NH4Cl or other salts under pulsed or P.R. currents could be employed? Any experience is interesting.

Franco Kruger
- Milano Italy

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