If you can get a nice flat plate around 3-4mm thick and practice some even straight runs directly on top of it. This way you'll learn a lot more. You'll get an understanding of how much current is needed to generate a pool on hot and cold aluminium (the difference is staggering) you'll also perfect the basics such as arc length and filler consistancy combined with consistant travel.
Joints like the one pictured above are not really going to help you progress as it's too advanced and your attempt of a weld on top of it shows that all too well. I've been welding aluminium full time for 15 years and I still go back to the beads on plate to perfect conditions when there is something new for me to do as I usually only get one shot to get it right so it's certainly nothing to be ashamed of. You'll get it I'm sure of that as your first attempts are going good but don't run before you can walk. View attachment 61671Get some of these laid on a plate and you'll be surprised at how easily the more technical joints follow.
Yes I need to get some plate to practice on. I'll carry on with the tube for now until some arrives. But thank you, I'm sure it will come with time
What direction do you find best to lay the weld? Toward/away from the filler rod? Or toward/away from you? Or just which is most comfortable?
Then you should use the pipe to carry out the practice. Instead of welding around it trying to join it weld directly on top of it across it's length. Keeping it all in the flat position. Then put up some progress pics. Good luck.Yes I need to get some plate to practice on. I'll carry on with the tube for now until some arrives. But thank you, I'm sure it will come with time
What direction do you find best to lay the weld? Toward/away from the filler rod? Or toward/away from you? Or just which is most comfortable?