I was lucky, and got a spot-welder from a dental laboratory which
closed down. From some testing, I can say it works, but there’s a
but: It works well for all materials I have tried so far, except
silver. Silver just won’t really fuse at any gauge. I tried water,
salted water and flux as electrolyte to improve the weld, but I never
got a reliable fusion.
Is it the silver’s physical properties that are not suited for this
type of welding, or am I doing something not as I should do?