WELDING

DIFFERENT PROCEDURES IN ELETRIC WELDING
Arc welding is a generic term for a process in which an electric arc is created between an electrode and the parts to be assembled.

Electric welding, a trade for experts

Electric arc welding is a method of assembly by fusion with or without additional metal, ideal for the permanent and solid joining of two or more metal pieces. To create this fusion,  we use energy from a high intensity, low voltage electric arc between a consumable or refractory electrode and the parts to be assembled. Whatever the arc welding procedure used, the dexterity and experience of the welder are key factors in the resulting welding quality.

The different arc welding procedures are as follows: Coated Electrode arc, TIG, PLASMA, MIG/MAG, Flux-core MIG/MAG. Except for the strictly manual Coated Electrode Arc procedure, the other welding procedures can be performed manually or automatically.

Electric arc welding with coated electrodes

This is the best-known welding procedure. The arc releases great heat and is established between the consumable electrode and the parts to be assembled. The fusion of the coating stabilises the arc, provides the gaseous protection and adjusts the metallurgical characteristics of the liquid metal.
This procedure is used in workshops and very often on work sites, principally for non-alloy or low-alloy carbon steels, stainless steels and also for surfacing. 

Equivalents:
- MMA 
- SMAW 
- Process 111 according to ISO 4063

ACTIVE FILTERS WITH LIQUID CRYSTALS: "SMART" TECHNOLOGY

Active welding filters provide reliable protection. Whether in a clear or darkened state, they ensure permanent protection against UV / IR emissions, heat, sparks and projections. The filter’s degree of protection is defined to avoid "blinding" by the electric arc. Active welding filters must always be used with a welding helmet.

When an electric arc is struck, the active welding filters automatically darken and when the arc is extinguished, they return to their initial clear state. So the active welding filters free up the welder’s hands and therefore save time, reduce fatigue and greatly improve quality thanks to better arc positioning. These filters must be protected by an outer and inner polycarbonate protective screen. 

 Active Technology: technical filters for optimum protection.
ACTIVE FILTERS WITH LIQUID CRYSTALS:  "SMART" TECHNOLOGY