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Mig welding uphill is where problems start to happen. Flat and horizontal welds are fairly easy but vertical uphill welds contend with gravity.... gravity will try to make your weld sag. You have to use a short stickout, the right settings, and the right technique to make the weld lay sort of flat. ... fortunately, there are a few mig welding techniques to help get good penetration as well as a decent looking weld.
for a detailed article on mig welding uphill , go to
http://www.weldingtipsandtricks.com/m...

This is part 8 of the mig welding basics series. for a more detailed article on mig welding overhead go here http://goo.gl/lcg27W
visit the weldmonger store http://weldmongerstore.com/
Overhead Tee joint drill. This is a multipass Tee in overhead position. Overhead mig welding is done using pretty much the same way flat and overhead are done. Using almost the same settings.
for this video, I set the machine to 20 volts and 300 inches per minute of wire speed using .035" of er70s6 wire.

for a detailed article go here http://goo.gl/7XzQq1
or visit the weldmonger store here http://weldmongerstore.com/
Part of learning Mig welding basics involves knowing mig welding techniques that prevent lack of fusion. With short circuit MIG, lack of fusion, or cold lap is always a concern on anything thicker than 1/8" .125" (3.2mm)