Thank you for all the reactions, I'm gonna clean it again the best I can. I did it with a flat disk and steel wire brushes on a drill.
And this Saturday I will try again.
Can copper welding wire be a better fit to this application? As it seems to me the new metal gets hot enough but the...
Im not sure, a magnet will stick to both the new and the cars metal. But the new metal is pulling stronger.
To Eddie.
Yes I tried and just the spots weld was oké, the mess on the car started when it burns out and only sticks to the side. If that makes sense?
At this moment the car is back on its wheels so im not able to take good pictures.
the steel is now fixed at three points, and it looks real bad, at all other points the weld will not bound with the car.
The metal was clean but now a yellowish color is over it after all the welding tries.
I'm having some troubles welding new sheet metal into a car.
While spot welding it penetrates and sticks to the new metal but it does not penetrate the existing metal.
The existing metal of the car is +-1,5mm
The new metal is also +-1,5mm
The area is around 20cm long and 4cm high.
The...