That’s the work of a spot welder. Spot welding is one of those processes that doesn’t offer much in the way of alternatives; either one uses a spot welder to do the job right, or one simply ...

[Aaron Christophel] has a battery spot welder that costs a not unreasonable 30 euros and can also be used as a novelty power bank. He subjects it to a test and teardown in the video below the break.

Abstract: SPOT WELDING consists essentially of clamping two pieces of sheet metal between two copper electrodes and passing through the pieces an electric current of sufficient strength to fuse them ...

Enter this Chicago Electric 120-volt Spot Welder available for $179.99 at Harbor Freight. The 120-volt spot welder comes with six-inch tongs with standard tips and has a welding capability of up ...