Thanks for that Gadge, my only direct experience with aluminium welding was watching a serious tradesman welder doing TIG work way back in the early days, when it was still called argon-arc. That guy was a marvel at welding anything, and having known him for a time served to convince me that when you want welding done right the first time every time, you should go to someone just like him. I could barely believe some of the things he could do, routinely and in hardly any time at all.
Wire-feed gas shielded welding, which came later, always seemed to me to take more setting up and was not really convenient for small one-off repairs. However you've now filled me in on important specifics - it is very useful for our archives to get up to date and accurate information like that you have given us.
