1. Spot electric-welding (Punch welding)

It is the most common way of welding grills: the electric circuit that heats and, consequently, unites the parts closes by means of two copper electrodes placed vertically one opposite the other. Despite being inexpensive, this welding process is extremely reliable, produces highly resistant parts and causes very limited rejections.

2. Pliers-welding

It is the logical outcome of spot-welding and it is used when the two parts to be united are not on the same vertical axis (considering the shape of grills), but on the same horizontal plane.

3. Arc-welding (Wire welding)

With this welding process, it is the electric current that generates the heat necessary to fuse the metal that will form the welded part by turning into heat in the electric arc. This process produces highly resistant welded parts.

4. Resistance-welding (Head welding)

When the electric current goes through a metal-circuit, it encounters a resistance that makes part of the electric current turn into heat (Joule effect). Heating the ends of the parts to be united until they get soft and applying an adequate pressure, the welding process will be completed. This welding process, which can be considered as the less expensive alternative to arc-welding, makes it possible to unite two parts on the same plane with no projections.