Here's the deal. I need to pull out some dents in my frame before it gets coated. I've been welding on a bolt to the dents and then pulling the dents out with a slide hammer. It has been working pretty good...but it is way to time consuming. Plus, because of the fact that the bolts which need to be used are 1/4'' (I cut the head off the bolts and weld the side that the head used to be on to the dent...the slide hammer screws onto the threads of the welded bolt), it doesn't allow you to weld on like 15 studs to the dent then pull it out. Not being able to pull out the dent with numerous studs creates a bumpy surface which needs to be blended with a flap disc until it is smooth.
I was thinking that a real stud welding gun would work on my frame...what do you guys think? I don't want to shell out $200 and then find out that it will not work. I have seen them used on auto body panels...but never a frame. I was even thinking of using a stud gun to weld on a stud, then heat up the surrounding area of the stud with a propane torch to give it a little help to pull the dent out. The only way I see why it wouldn't work is if the spot welder doesn't weld the studs on strong enough to pull out dents in thicker metal. Please help, post your comments.