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bead blasting for aluminium

Thread starter hobbs101
Start date Mar 16, 2016

Status: Not open for further replies.

Mar 16, 2016

hobbs101

Mechanical

Hi. I'm intending to get a welded aluminium assembly bead blasted to remove blemishes and give a satin finish.

I understand glass beads are best for aluminium. I'm looking for a 'fine smooth finish'. Can anyone recommend a typical bead size to achieve this? Or, I can specify a surface roughness range and let the machine shop choose the bead size.

I also want to ensure that the blasted surfaces do not easily show fingerprints. What should I specify on the drawing to ensure it's treated to prevent this?

Thanks

Hobbs101
Mechanical Design Engineer