Correct me if I'm wrong but I think spot welding involves a very short burst
of heavy current. It is a sort of one shot affair, and nothing you could
duplicate with a buzz box

Bob Swinney
"Time Traveler" wrote in message
...
Can you use a regular ac buzz box welder as a spot welder for sheet
metal.I plan to make a clamp with copper alloy electrodes.Anything
special with the electrics on a commercial model spot welder?What would
be the amperage to spot weld 1 mm sheet metal if my idea has merit.