In this video I will show you a technique using a welder to remove a broken bolt or stud. I am using a Harbor Freight wire feed welder. I will cover the basic settings on the welder to achieve solid welds. I used this technique removing broken studs from my Dodge Ram with the Hemi engine.
This method you use your welder to build up a slag pile, once the pile is high enough you take your nut and place it over the pile and then take your welder and weld the nut to the slag pile. Once it cools down you can then use a socket to unscrew the broken exhaust manifold bolt. Be sure to check out my other videos where you can see what the broken bolts look like.

Tools you will need
-Wire Feed Welder
-Broken Stud or Bolt :)
-Masking Tape
-Nut with an interior diameter about the same size as the broken stud or bolt.