Welding is a fabrication process whereby two or more parts are fused together by means of heat, pressure or both forming a join as the parts cool. Welding is usually used on metals and thermoplastics but can also be used on wood. The completed welded joint may be referred to as a weldment. The parts that are joined are known as a parent material. The material added to help form the join is called filler or consumable. The form of these materials may see them referred to as parent plate or pipe, filler wire, consumable electrode (for arc welding), etc. Consumables are usually chosen to be similar in composition to the parent material, thus forming a homogenous weld, but there are occasions, such as when welding brittle cast irons, when a filler with a very different composition and, therefore, properties is used, these welds are called heterogeneous.

Some types of welding processes we provide at PADENA LASER:

• – Stick – Shielded-Metal Arc Welding (SMAW)
• – MIG – Gas Metal Arc Welding (GMAW)
• – TIG – Gas Tungsten Arc Welding (GTAW)