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Projection Welding

Projection Welding

Projection welding uses a projection in the material itself. When welding, the welding current and the clamping pressure on the projection made in the material are concentrated.

Projection welding is a form of resistance welding. This is a welding process where two parts are welded by pressing them together between two electrodes. The required heat generation is obtained from the electric current and the transfer resistance between the parts to be joined.

Principle of the resistance welding process

AWL Projection Welding

With resistance welding, two or more plates are pressed against each other by copper alloy electrodes. The electrodes are cooled by water. Either DC or AC can be used to weld.

During welding a resistance is created that generates heat. The greatest heat generation is located where the resistance is highest. This is between the plates to be joined. The clamping pressure forces the material together into a single join/weld. The electrodes are cooled in order to reduce wear on them.

Projection welding

Projection welding uses a projection in the material itself. When welding, the welding current and the clamping pressure on the projection made in the material are concentrated. If the projection is pressed against the material between the electrodes, the projection melts away and only a weld is left in its place. This is normally used for nuts and for sight welding. In ISO 4063 the process is referred to as process number 23.

 Nuts and Projection       Plate and Projection

                          

Cells

LCC Spot Welding Cell

The LCC Spot Welding Cell provides you with the possibility to start robotic spot welding at a low entry level. A very economical solution for resistance ...

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Basic Spot Welding Cell

This advanced welding cell is suitable for high levels of output and complex product operating conditions. As standard the welding cells are fitted with r...

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Hybrid Multi Spot Welding Cell

The hybrid Multi Spot Welding Cell is the optimal solution for the resistance welding of complex products. This welding cell is very suitable for combinat...

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