Spot welding is usually used to join a panel of overlapping sheet metal parts that are usually 3mm thick.
Spot weld aluminum sheet metal.
Learn how to mig weld automotive sheet metal in about 5 minutes or less.
The two electrodes focus the current onto a small spot which is where the term spot welding comes from.
Its primary usage is in welding auto body and sheet metal.
Aluminum spot welding is becoming more common as.
It s also easy to do with a spot welding machine which has 2 electrode tongs about 6 inches 15 cm long that pass an electrical current through the metal to fuse them together.
The standard bs en iso 18595 resistance welding spot welding of aluminium and aluminium alloys weldability welding and testing provides useful guidelines.
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Detailed weld settings are available in standard text books or from suppliers of the material or equipment and may depend on the detailed quality requirements and materials being used.
Spot welding uses the heat from an electrical current to join 2 pieces of metal quickly and is typically used for joining sheet metal.
In this video lazze shows how you can spot weld aluminum with a standard 220 volt spot welder that is probably already in your shop.
The ration of thickness should not exceed 3 1mm.
A couple of electrodes at the same time clamps the work pieces jointly and delivers the electrical current wanted to make the weld.
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This is because the strength of the joints depends on the number and size of the weld.