Welding tubing is not my forte. In fact, I do it so infrequently that I have not had much practice in the past year.
Nonetheless, I’m really happy with the way these welds came out, and it is all attributable to a great machine, and not to my crude skills.
Today was a success. I managed to make a strong weld, if not an artistic one. And they were clean baby! Look at those welds shine, and I did not chip them or wire brush, or do anything more than wipe them with a paper towel to remove a little yellow smut.
That probably happened from me poking my electrode into the puddle.
I really had no idea how this would come out because I did not know what grades of metal I was welding together. I think the bars were ASTM a36 But who knows what the shock absorbers were made of.
In the end it actually turned out to be very weldable and I just need is a lot more practice going around the tube.
You can see there is a small amount of warp, but this will come out when I clamp it. This is much more desirable than the opposite condition.
I spent all morning cleaning and getting set up to weld and so this is all I’ve gotten done so far. Now I need to tack them onto the chassis. Then I need to pull the frame rails off.
I’m not sure that’s going to happen today because my wife is looking at me to take her to the store.
So this is about the best tig welding that I’ve done so far. The first one took me about seven stops and starts, but I managed to do the second one in just five.
It took 70 A to burn this, and my problem is a 75 amp max torch that is not water cooled. Even with a pipe positioner, I could not have welded that continuous bead all the way around the pipe.
Now I have to get the welder out of the shed, because my leads will not reach to the tail end of the car. I had to build a special ramp for this because it’s so heavy.