Originally Posted by
arceye
I agree with jimn
I was taught that the weekest part of the weld is the heat effected zone next to the weld, thats why most fractures are right next to the weld line. "stress is reduced by heat treatment, weld prep design and weld proceedure"
If you look at the original weld it is designed so as not to create a:- direct virtical shear stress line.
p.s. There are also different grades of filler rod /wire with different tensile strenghts so make sure the right one is used
sorry I can't be more helpfull but it's been years since I last welded aluminum.
Paul
Ding Ding Ding. We have a winner!
I'm a certified welder. I've done a good bit of TIG welding which is how your frame was made. Like others have said aluminum frames are heat treated, and this is not possible/practical for most people even with really nice welding setups. Also like others have said aluminum is weakest around the weld not at it, so it would likely break next to the weld very soon. It's not worth your money to pay anybody to weld it. Sorry. Try and get a warranty or buy a new swing arm.