- Capacitor Discharge Welding is carried out without heat and does not need to have the screw-head dimension, which, on the contrary, is necessary in spot welding.
Welding can be carried out on much smaller dimensions, practically eliminating obstructions. It has a good and safe capacity, and another advantage is that it allows for a better aesthetic result. It is prevalently used in stud welding, and requires less pressure compared to spot welding (which heats both areas).

- Plasma Welding is similar to Gas Tungsten Arc Welding: it penetrates less, and less heat is applied, therefore causing less distortion on the part being worked on.
The arc is more precise. Greater stability creates superior quality fusion. Another advantage is that there is a greater concentration of energy with an increase in welding speed.

- Spot welding occurs by induction, primarily used for “fastening” pot handles. Used for pots, studs, fan blades, metallic nets and grates.

Spot welding does not refer to a particular welding process, rather to a particular application of welding processes. It involves the generation of welding points on the perimeter of the part s to be fused: in this way continuous welding is not achieved.

For this reason, it is a process that is often used to join parts which do not require much mechanical force, or, in any event, where it is not necessary to achieve hermetical fusion.

It is typically used in non-automatic welding processes such as tacking, useful in holding parts together, where continuous welding is foreseen at a later stage. .

The welding phase permits the joining together of different metal parts, united with an electrical charge: two copper electrodes touch to create a charge melting the two parts.