Today's mig welder on aluminum works better when you preheat the area to be welded. What I have done is make an acetylene only flame and blacken the area with soot, then open the oxygen and make a neutral flame. Heat the blackened area till the soot is gone, then weld it. The above method works good for tig also.
For tig you need to preheat the area with a torch or else use your tig torch to preheat some. Watch the weld area as it turns fluid and add some filler rod and weld as if you were gas welding. There is a little in technique involved that was not mentioned. I had a female apprentice that was tig welding after I gave her a couple of demos. I have never seen aluminum get hot and make a big hole right away. The weldor would have had to have done something way wrong.
I had the chance to learn oxygen/acetylene welding aluminum many years ago but we had a Tig machine so I passed it up, big mistake.
Same-Day Shipping! Most of our stocked parts ship the same day you order (M-F). Expedited shipping available, just call! Most prices for parts and manuals are below our competitors. Compare our super low shipping rates! We have the parts you need to repair your tractor. We are a Company you can trust and have generous return policies! Shop Online Today or call our friendly sales staff toll free (800) 853-2651. [ More Info ]
TRADEMARK DISCLAIMER: Tradenames and Trademarks referred to within Yesterday's Tractor Co. products and within the Yesterday's Tractor Co. websites are the property of their respective trademark holders. None of these trademark holders are affiliated with Yesterday's Tractor Co., our products, or our website nor are we sponsored by them. John Deere and its logos are the registered trademarks of the John Deere Corporation. Agco, Agco Allis, White, Massey Ferguson and their logos are the registered trademarks of AGCO Corporation. Case, Case-IH, Farmall, International Harvester, New Holland and their logos are registered trademarks of CNH Global N.V.