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Discussion Starter · #1 ·
I have been kicking around some ideas for the finish on some of the parts of my projects. I have dealt with a bunch of NiTuff, Hardcoat anodizing, and black oxide finishes over the years at work but most of that is for wear resistance or corrosion resistance. We often do not care about cosmetics beyond smooth with no deep scratches as long as the part continues to function when drug from a mud pit in a desert in Iraq or the mountains of Afghanistan.

For my case covers, cam adjuster covers, points covers, ect. I would like to do something different besides the typical polish, painted black, or painted silver finish on things and I want contrast on the engine. I do not want everything to be the same color or some blend of silver/polished finish.

Right now I looking for ideas and particularly pictures of different finishes or preps. I am thinking in terms of anodized finishes over polish vs. brushed surface preps. Also alternate electroplating (Zinc/Cadnium/Cadmium/Nickle) type finishes over polished vs. brushed vs. bead blasted finishes.

More or less wanting to brainstorm some things here. Anyone have any experience on how brushed, polished, or blasted surface prep affects the finished product when some of the previously mentioned processes are done to them?
 

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Out of my VERY limited knowledge of metals I'd say that if you want to electroplate anything or anodize, then a clean (possibly polished) surface would be the best route to take. I've always wanted to have a bunch of parts copper plated and then clear coated with automotive clear before they tarnished. For me, that's a pipe dream at best though..


Now, if you wanna talk about welding/cutting metals then I'm your man. ;) I've been doing that since before I could legally work.



GB :mrgreen:
 

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Discussion Starter · #3 ·
At times polishing or other things can negatively affect post finishing processes. For instance if you use a tumbler in the process of finishing a metal and select the wrong media you can actually close or effect the pores of aluminum and cause streaks or poor final finish in the anodizing on it. I do not know if polishing, blasting, scotchbrite brushing, ect. effects electro plating finishes in anyway though.

I wish I could weld better but I can always buy beer and know one heck of a welder that is a real beer hound. I think he could weld a pine 2x4 to a sheet of aluminum if he had enough beer in him. There is not much I can not cut up when it comes to metal though.
 

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For what it's worth, they polish parts before chrome plating. So polishing can't be all bad before plating. You're just smoothing the surface for a better final result. As long as you use a powerful solvent to remove any traces of contaminants after polishing then I'd think it'd be fine..



GB :mrgreen:
 
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