80 greaseless will knock down those welds a lot quicker than your DA or manual efforts will. It does cut quick so your concerns about gouging the material are definitely warranted. Perhaps some greaseless on a mini-bob or a small spiral "Dremel" sized wheel?
I recently polished an aluminum cooler rack for an ATV and smoothed all the welds out completely with greasless using a very small felt bob, my flex shaft and 80, 180 and 240 grit greaseless. I then followed up with a regular 4" wheel and the 400 and a hand wet-sand with 400 before it went under the buffer. Came out beautiful.
Good luck!
|