I came up with an unpainted aluminium framethat has so much corrosion and have'nt been able to get rid of it.I've used a lot of different things on it ,does anyone out there know of a product that removes it easily?
I can post photos of it a little later.
Is it doomed to a rattle can paint job?

Since we speak of alloy, my guess would be that the surface has been partially eaten away and unevenly at that. With this in mind, no amount of cleaning will make it look good. If the corrosion is not too deep, polish it out but do be careful. You are working with thin material sometimes.

I have heard that ammonia will help with alloy corrosion issues but I have never tried using that chemical for that purpose.

SOS pad and elbow grease, followed by a good rub with crumbled up aluminum foil. This is if indeed is aluminum oxidation (a white or blue-greenish deposit) and not anything else

Go to an autoparts store and look for a bottle of Unpainted/unfinished Aluminum mag wheel cleaner. It's for polished aluminum wheels. It should take off the aluminum oxide layer.

Pictures will definatly help.

Do they clear anodize Aluminum bike frames? This could make it difficult.

Once the corrosion has gone under the anodizing layer and actually caused pits on the aluminum surface, you will have no other option than to polish it out using polishng compounds of graduating grits (that will remove the anodizing) till they are mostly gone. Please note tht you will be removing metal from the bike with any kind of abrasive polishing you might use, but a few micronsof metal off will most likely never be noticed. If the pits are very deep, you might have to just live with them and hopefully the poished surfaces around the pits takes attention away from them.

Chombi