Saturday, March 24, 2012

Silly question: Alternator Welder?

Seen it done, and have a 16hp Kohler waiting on a dead welder to come my way, but thought about it myself. Couple of things. The diodes in an auto alternator are only rated for about 32v, and will blow if you run the rpm up where you want it to get a stable arc. Easy enough to sub larger ones from a welding supply that services welders. Need to control the tickle voltage to the field for current control. A wirewound rheostat will work for that.

Google and youtube have many examples of people's successes and failures.

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