Zinc-nickel on complex brackets: thickness distribution targets?

For zinc-nickel plating on stamped steel brackets, our customer requires 8–12 µm and a nickel content of 12–15%.

Our challenge is the inside bend and the shadowed area behind the tab. We would like to know:

• What thickness distribution do you accept across the part?
• How do you position auxiliary anodes?
• Do you use a higher current density with rack movement?
• How do you verify nickel content at different points?

If you have a proven rack layout for a similar bracket, a description would help.

— Posted by the Asean Zip editorial team as a discussion starter. Members: add your production experience below.