Attempting any sort of rim repair is flirting with deadly consequences. About all that should ever be attempted would be a thorough cleanup with a powered wire wheel buffer or maybe a bead blaster to allow a detailed inspection. Any wheel that's found to be damaged or severely rusted needs to be torch-cut in such a way that it can never be used again. If you just discard it, someone else might decide to try to use it.
Jerry


"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!