Quote:
Originally Posted by mongocanfly
Nice show and tell on that Robert... just curious , why not just weld the face to the 2nd piece without tipping the edge over..then dressing the corners..
|
Thanks for the comments guys.. Greg, EXCELLENT question!!!!
When you place a weld on a corner, and for an example, lets say we are patching a lower fender right up to the door opening to repair some rust at the bottom of the fender.... you lose the ability to control the two perpendicular sides. Let's say you blow a hole and have to re-weld in a spot or two. More heat and shrinking is bound to pull at the panel, and now you are pulling inward in two directions. The weld seam directly in the corner makes it difficult at best to planish and control where the metal gets stretched to, IF you can even make headway on it. So you'll find that in addition to having low spots, you also have altered the door to fender GAP with little hope of fixing it without filler.. By shaping your panel as you want it, and then tipping a flange that carries the seam into the perpendicular side, the crease helps to hold things from moving. Place the weld seam far enough away from the corner that you can hammer and dolly. With the brackets we made Saturday, this was easy as we just used the pipe once again, this time to planish the TIG weld once completed.