4 Types of Welding

Welding is a fabrication process where two or more pieces of metal are fused together using heat and pressure. This process is considered the most efficient and economical way to join materials permanently. Today, skilled professionals can weld metal manually or with automation tools which speed up the process. Learn more about the different types of welding processes and what tools are commonly used by welders.

Shielded Metal Arc Welding (SMAW)

With this type of welding, the welder uses a manual process of stick welding. An electric current creates an arc between the stick and the metals that need to be joined. SMAW is most commonly used when constructing steel structures, as well as in industrial fabrication to weld steel and iron. Welders that follow this process must have the skill to weld to a level that passes a destructive type of bend test.

Gas Metal Arc Welding (GMAW)

Also known as Metal Inert Gas (MIG), this type of welding process relies on a consumable electrode. GMAW requires a shielding gas and wire electrode which heats the metals that require joining. This process requires a constant direct-current power source and voltage. The GMAW welding process uses several methods of metal transfer, including globular transfer, short-circuiting, spray transfer, and pulsed spray.

Flux Cored Arc Welding (FCAW)

FCAW was created as an alternative to shield welding. Due to its portability and high welding speed, this semi-automatic arc welding is often used in construction projects. Its versatility and many operating angles and voltage levels also allow FCAW to be used in a wide range of welding projects. This type of welding process is best used outdoors or with industrial ventilation hoods because of the significant fumes and smoke created.

Gas Tungsten Arc Welding (GTAW)

The most common form of this method involves welding together thick sections of stainless steel or non-ferrous metals. GTAW is an arc-welding process that produces a weld using a fixed consumable tungsten electrode. Due to the complexity of gas metal arc welding, it is often more time-consuming than alternative welding processes like Stick, MIG, or Flux Cored Arc Welding.

Common Tools Used in Welding

Welding is a challenging skill to master and requires access to the right tools and equipment. Here’s a look at some of the most common tools used in welding:

    Welding Helmet – Also known as hoods, welding helmets are designed to protect your face, neck, and eyes from sparks, flash burns, and infrared and ultraviolet rays.

    Welding Jacket – A welding jacket is constructed from fire-resistant materials to protect welders from metal splatter and high heat.

    Welding Gloves – Thick welding gloves are essential to protect the welder’s hands from high heat. There are

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