Quote:
Originally Posted by A930Rocket
How do they work? The lower picture seems to have some kind of grinding wheel?
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The jaws hold the two ends of the blade in place. Then you push down the big lever. The jaws are spring loaded and push the ends of the blade together while applying a current. There is a cut off switch that turns off the current automatically.
The grinding wheel is used to clean up the weld prior to annealing. Really a high quality machine.