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arc welder/spot welder? Answered

can an old small arc welder be used to make a spot welder? It's a 60 yr. old Grindl. A stamping on it says input amps 20, sec. amps rated .80- 80, welding volts 20, max open cir volts 80.

Tags:welding

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Downunder35m

Best Answer 3 years ago

That is certainly moe than enough power for the job.
Check our King of Random, he has nice welding projects based on old microwave transformers.
The mechanics for his spot welder should fit our application too.

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hjones47222222Downunder35m

Answer 3 years ago

I'll check him out. I'm having a hard time deciding if this thing even has a secondary coil. It has wires coming off of both coils going to three 'Vernier' and three 'Major' places to plug leads into to give different voltages

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seandogue

3 years ago

FWIW: I can't say with absolute authority, but it seems to me to be a reasonable idea. You have to come up with the spot welding jigs and tooling, and *may have to incorporate some sort of special switching or automated articulation to control weld duration, but it *seems doable.