What Is Welding.?

Welding – it is an art, a profession and an integral part of the manufacturing process. This ancient art of joining metals has been around for over 4,000 years and has progressed into one of the most important and highly used technologies in the world.

According to reports, welding is responsible for 40% of global industrial production and 58 million metric tons of welds are produced every year worldwide. In this article, we will explore what is welding and the different types of welding technologies used today.

What is Welding?

Welding is a fabrication process used to join materials, usually metals or thermoplastics, by causing coalescence.

This is often done by melting the workpieces and adding a filler material to form a pool of molten material (the weld pool) that cools to become a strong joint, but sometimes pressure is used in conjunction with heat, or by itself, to produce the weld.

Types of Welding

  • Shielded Metal Arc Welding (SMAW) – also known as stick welding
  • Gas Metal Arc Welding (GMAW) – also known as MIG welding
  • Flux-Cored Arc Welding (FCAW) – similar to MIG welding
  • Gas Tungsten Arc Welding (GTAW) – also known as TIG welding
  • Plasma Arc Welding (PAW)
  • Submerged Arc Welding (SAW)
  • Oxygen-Acetylene welding (OAW) – also known as oxy-fuel welding

Advantages and Disadvantages of Welding

Welding is a popular fabrication process for its ability to join materials with strength and precision. It is also a quick means of fabrication, allowing multiple pieces to be secured together in less time than other joining techniques.

However, welding can be a dangerous activity if proper safety precautions are not taken. The process produces intense heat, blinding light, and dealing with hazardous gases.

Protective clothing and equipment is essential to prevent serious injury.

Application of Welding

Welding is an essential part of many industries, including
  • The automotive industry,
  • The shipbuilding industry,
  • The aerospace industry, and
  • The construction industry.
The process of welding is widely used in the manufacture of components for all kinds of machines, such as pumps, engines, and even computers.


Welding is an important fabrication process for producing strong, reliable joints between components. While it does have its dangers and requires the use of protective gear, welding is a versatile process and is used in nearly every industry.

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