Arc welding overhead with 7018 can reign down slag and fireballs in the most unfortunate places.
Especially when you are just learning.
I was young and dumb when I was learning to weld so I got lots of scars on my arms and other places while I was figuring out how to put the weld metal where it belonged instead of all over me.
I finally learned and so here are the main tips that make most of the difference.
Most welders I have trained have leaned toward decreasing the amperage for overhead welding.
Some text books even recommend less amps for arc welding overhead.
Not for me.
my best piece of advice for overhead welding and most other arc welding is to crank up the amps until the rod wont stick when you hold a tight arc.
Then…..hold a tight arc.
But there is one more thing that can make a lot of difference for overhead arc welding.
Dont use much rod angle.
too much angle can cause a crowned weld.
instead, try to maintain a rod angle that is almost 90 degrees. Even trying to maintain 90 degrees you will typically have a 5 or 10 degree drag angle.
Thats what I have found works.
any tips from you?
Oh yeah….in this video , I used 100 amps for the 3/32″ excalibur 7018 rod and 140 amps for the 1/8″ 7018 Techniweld brand rods.
Amperage will vary with each different machine but that will get you in the ball park.