Thanks for the insight. I have tried a lot of the things and maybe it is just a matter of seat time. Since no one has indicated a major issue I would suspect that the problem is seat time. If I can clamp the pieces tight together they are much easier to get to weld. I will keep trying and repost if ...

Very new to TIG welding so I need some insight. I do OK with steel, but the Al. is not going well. I am using a Lincoln Percision TIG 225 & foot pedal. Trying to make a lap joint or butt joint on .040 Al. Some times I can half way get a butt joint to weld, but not the lap joint. Every time I get...