Can rims be fixed

That depends on what kind of rim and the damage done to it? If the rim is steel, and the rim is merely cracked, yes it can be fixed. You would weld the crack closed. If the rim is bend, and the dent is not on the bead (place where the tire meets the rim) but ont he outside lip, you can simply sledge it back to place. If the rim has a flat spot, then the rim should be fixed by a professional to get it trued. If the rim is aluminum, everything changes. If there are minor scratches, you can get the rim resurfaced and the rim will be fine. After that, any other kind of damage is either irrepairable, or would most likely cost more than a new rim. Best thing to do, if it is an aluminum stock rim, is go to your local scrap yard and find a vehicle with one on it. You can even go to your local Costco tire shop(yes, Costco). They have a listing of a local wheel shop which can try to order your rim.