Types Of Welding Processes (Uses, Pros and Cons) – Asfa Iqbal @Engineerine.com

Types Of Welding Processes (Uses, Pros and Cons) – Asfa Iqbal @Engineerine.com


The intriguing process of welding can be traced back to 1904 when the coated electrode was first created. To put it in an easier way, welding is the process of joining different bits of metal by first melting them and then fusing them. 

A welding power source is required for the process of welding since it is necessary to generate an electric arc in order to melt the parent material that is being welded as well as any consumable that is being used. As a result of this, previously distinct metals are now bonded together. There is a wide variety of techniques for welding; however, the following is an overview of the four types of techniques that are utilized the most frequently.

Table of Contents

Gas Metal Arc Welding – MIG (GMAW)

This technique, also known as Metal Inert Gas or MIG welding, employs a tiny wire as the electrode. As the wire is fed through the welding equipment and towards the welding location, it becomes heated. This approach requires a power supply with consistent voltage and direct current. Shielding gas must be utilized to shield the weld from airborne pollutants.

Usually, carbon dioxide, argon, or their combination is used. This technique is frequently applied to a variety of metals, including stainless steel, copper, nickel, carbon steel, and aluminum.


This welding technique is the most used in the construction and automobile industries. MIG welding is most frequently used to repair automobiles, motorcycles, RVs, vans, and SUVs. MIG welding is the ideal technology for assembling or repairing the body or interior of any car since it can produce a strong weld for even the thinnest metals. Including plate and large bore pipe, and is the most prevalent industrial welding method.


  • Gas metal arc welding is one of the simpler procedures to master, making it perfect for beginners. 
  • It enables rapid welding speeds, minimum cleanup, and better control over thinner materials.
  • MIG welding provides clean, attractive welds.


  • Some disadvantages of this welding technique include the expense of shielding gas and the inability to weld heavier metals or execute vertical or overhead welding. 
  • These welding kinds are prone to external elements such as rain, wind, and dust, making them unsuitable for outdoor use. 
  • MIG welding quality issues include dross and porosity, which weaken the structure.

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