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Arc welding stands out as a popular and technologically advanced solution developed to address the issue of breakage in metal equipment. This process creates permanent joints in materials with exceptional strength, versatility, and durability, making it a suitable option for commercial purposes. With various welding methods to choose from, this technique is widely recognized and utilized for its characteristic properties. There are different types of arc welding processes. Explore them through the article for better information and decision-making in your welding endeavors.
Introduction to ARC Welding
Welding encompasses the process of joining or fabricating metal joints by melting and solidifying at high temperatures. This article explores various types of joining processes, focusing on fusion welding and its sub-types.
Types of Arc
Arc type utilises consumable and non-consumable electrodes to join metals. Here are the main types:
Consumable Electrodes
Gas Metal Arc (GMAW)
Gas Metal Arc (GMAW), known as Metal Inert Gas (MIG) and Metal Active Gas (MAG), protects against base metal contamination using shielding gas. It’s versatile, economical, and easily automated.
Shielded Metal Arc (SMAW)
Also known as stick, SMAW is ideal for various thicknesses of ferrous and nonferrous materials. It uses an arc to melt a rod and workpiece, creating a weld pool.
Submerged Arc (SAW)
SAW submerges the joint in flux, using consumable electrodes and minimizing fumes and radiation.
Non-Consumable Electrodes
Carbon Arc
Carbon Arc bridges metals using a non-consumable carbon arc, though it’s less commonly used due to safety concerns.
Plasma Arc (PAW)
PAW uses ionized gases to create plasma jets, ideal for narrow and deep welds.
Tungsten Inert Gas (TIG)
TIG, or Gas Tungsten Arc (GTAW), is widely used for its high-quality welds, especially with aluminum and magnesium alloys. Also read
Process
- Arc Creation: Voltage creates an electric arc between electrodes.
- Metal Melting: High temperatures melt the metal.
- Molten State: Metal turns molten.
- Filler Metal: Filler metal joins the molten pool.
- Solidification: The mixture cools and solidifies, forming a weld.
Benefits
- Portability and simplicity of equipment.
- Affordability and no mandatory shielding gas.
- Quick completion time and reduced smoke and spatter.
- Resistance to corrosion and high impact strength.
Quality Welding with L&T-SuFin
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