Currently we do not deburr. We are using a pre-brushed coil for the rollform and from there it goes straight into final assembly. Looks are quite important as it is a visible trim piece. We are looking into a passivation step. Thanks for the input EdStainless.
I have a roll formed profile in 430 stainless steel, that sporatically develops rust at the punched holes. Some do, some don't, when tested under ASTM B117 Salt Spray Testing for 500hrs. What causes the rust to form around the holes, and not eleswhere on the part? Is there a treatment I can do...
