Although the welding process seems to be a traditional and quite old technique, since the forging of heated parts and their welding together can be considered as early as the Middle Ages, it is still being improved and modernised to keep up with the times.

Welding and industry

Many industries, such as aerospace, shipbuilding and construction, require the use of durable materials such as steel, so it is necessary to use strong and tight joints between metals and their alloys.

Industrial welding is a key element in the manufacture of specialised factory machinery, which often allows materials to be joined more firmly than classic bolts. It is worth being aware that it is also used in the repair of all kinds of steel structures such as pipelines or tanks.

Undoubtedly, this is a field that is constantly evolving in terms of traditional welding methods and its modernised part - the robotisation of welding equipment.

Welding techniques according to energy source

There is no single answer to the question of the best welding method - the choice of method depends on many factors: the type of material to be welded, the expected quality of the weld, the type of flux or electrode. It is worth mentioning that each welding, welding or brazing method has a unique number according to the classification of the PN-EN ISO 4063 standard.

Biorąc pod uwagę źródło energii możemy wyróżnić welding:

  • gas
  • covered arc electrodes
  • covered arc
  • speedway
  • gas shielded - welding methods:
  • MIG
  • TIG
  • MAG
  • plasma
  • electron

THE MOST COMMONLY USED WELDING METHODS

Both the method and parameters of welding should be carefully matched not only to the material to be treated, but also to the environmental conditions or subsequent use.

 

Gas shielded welding (MIG/MAG)

MIG (Metal Inert Gas) welding is a type of arc welding which uses chemically inert gases, while MAG (Metal Active Gas) uses chemically active gases such as carbon dioxide and argon mixtures. Under the influence of the arc, the base material and the filler metal melt, thus forming a weld. This type of welding is most commonly used in assembly line work in all branches of industry.

 

TIG tungsten electrode welding

Welding with the TIG method (Tungsten Inert Gas) is used wherever extraordinary accuracy and tightness as well as clean welds without spattering are required. This technique is mainly used in the creation of tanks, cisterns, cylinders and pipelines. Of all the pure metals, tungsten has the highest melting point, making it possible to work with almost all metals and alloys.

 

MMA welding

Welding with covered electrodes (MMA) (Manual Arc Welding) uses a metal core electrode covered with a compressed lagging. Compared to other methods, the electrode is shortened in this process, so the holder must be constantly moved towards the workpiece - this requires experience and precision on the part of the welder.

 

WHICH WELDING METHOD TO CHOOSE?

The key to success is to adapt the parameters and method to the specific case. Consider what you want most - precision, tightness, speed of execution or durability of the alloy. This will enable you to choose the right method.

 

WHICH WELDING METHOD TO CHOOSE?

The key to success is to adapt the parameters and method to the specific case. Consider what you want most - precision, tightness, speed of execution or durability of the alloy. This will enable you to choose the right method.