Arc welding types and principles

28 Feb.,2024

 

This page describes the different types of Arc Welding roughly divided into non-consumable electrode and consumable electrode types, as well as the arc generation and welding principles.

This guide includes basic welding knowledge such as welding types and mechanisms, and detailed knowledge related to welding automation and troubleshooting.

Types of arc welding

Arc welding is a type of fusion welding and is widely used in various industrial fields.
There are many varieties of arc welding that are selected depending on the material characteristics, mechanism of the equipment, and gas to be used. Gas shielded arc welding that uses a shielding gas to protect the weld from atmosphere, such as TIG welding, MIG welding, and MAG welding, has been used extensively due to ease of automation.

Arc welding, including gas shielded arc welding, is broadly divided into two types: consumable (fusible) electrode type and non-consumable (non-fusible) electrode type depending on whether the welding rod/wire melts in the process or not.

Arc welding Electrode consumption Welding method

Non-consumable (non-fusible) electrode type

  • TIG welding
  • Plasma welding

Consumable (fusible) electrode type

  • Shielded metal arc welding
  • MAG welding
  • MIG welding
  • Electrogas arc welding (EGW)

The classifications above are just an example. There are various ways to classify the types, and some may differ from the table above.

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