a transformer has 2 coils. First one has 1000 turns of coils and the secondary coil has only 2 , which requires this coil to be very tick at least 1cm.
In the first coil the voltage is very high, however, current is very low. In the secondary coil the voltage is very low and the current is very high.
As the current passes through metal surfaces it heats it up and we use this heat for welding.
There is no welding point here but ı put a switch where it is supposed to be.
Another thing about this circuit is that it has AC current. This is not good enough for welding. You can use a rectifier for welding. That will make it better and you wont lose any heat or current. I didnt add it here because the software goes insane.
In the electrode part you better use a copper piece with a pointed edge.
