The following two photos was taken with my microscope of both sides of the washers :
Three welds on this side
Two welds on this side
The welder needed to be tweaked and after receiving some parts from Digikey today I managed to adjust the precise pulse timing for this welder.I welded two screws together with the weld energy set to 50Ws. The welds are very shiny, clean and strong.
|Two 9mm casings (Brass) welded together|