ARC Welding

An arc strike is a welding defect. It happens when the electrode creates an arc outside the intended weld zone. This can form a metallurgical notch, which causes localized stress risers that may lead to cracks. Arc strikes can occur from accidental discharge, like scratching or tapping, or from the movement of the ground clamp. … Read more

Submerged arc welding (SAW) is a welding technique that takes place beneath granulated flux. This flux protects the weld from atmospheric contamination. Common flux components include manganese oxide, magnesium oxide, and silica. This method improves weld quality and reduces defects, making the process efficient and reliable. Essential equipment for submerged arc welding includes a welding … Read more

The main types of arc welding are: 1) Shielded Metal Arc Welding (Stick Welding), 2) Gas Metal Arc Welding (MIG/MAG), 3) Flux-Cored Arc Welding, 4) Gas Tungsten Arc Welding (TIG), 5) Plasma Arc Welding, 6) Carbon Arc Welding, 7) Submerged Arc Welding, and 8) Atomic Hydrogen Welding. SMAW, also known as stick welding, utilizes a … Read more

The temperature of a welding arc usually reaches about 10,000 degrees Fahrenheit. This heat effectively melts many metal types in the welding process. Compared to other methods, it is hot but cooler than plasma torch welding, which can rise above 50,000 degrees Fahrenheit. For Tungsten Inert Gas (TIG) welding, the arc temperatures can exceed 7,000 … Read more

Arc welding was invented in 1881 when Nikolai Benardos demonstrated it using a carbon electrode at the International Exposition of Electricity in Paris. He patented this invention in 1887 with Stanisław Olszewski. This innovation transformed the welding process and laid the groundwork for modern welding techniques. By 1900, the adoption of arc welding grew due … Read more

The four main types of arc welding are: Gas Metal Arc Welding (GMAW), which uses a continuous wire feed; Gas Tungsten Arc Welding (GTAW), known for its precision; Shielded Metal Arc Welding (SMAW), which uses a coated electrode; and Flux-Cored Arc Welding (FCAW), which utilizes a tubular wire for improved efficiency. These techniques utilize electric … Read more

The arc in arc welding is an electrical current that generates high heat. This heat melts the base material and the electrode, joining two pieces of metal. The arc forms between the electrode and the base material, creating a strong weld. Knowing how the arc works is vital for successful welding. The process begins by … Read more

DC arc welding provides a stable arc with consistent current flow. It produces less spatter, leading to cleaner welds and easier cleanup. It also simplifies starting the arc and offers precise control. In comparison, AC arc welding is ideal for thicker materials but may have more spatter and lesser control. The pros of DC Arc … Read more

Arc welding is powered by electrical energy from two main types of power sources: constant current and constant voltage power supplies. Constant current supplies keep a steady current for the welding arc. Constant voltage supplies adjust the voltage based on the welding conditions. Both sources are crucial for reliable and efficient welding applications. Key characteristics … Read more

A flash burn, also called welder’s flash or arc eye, happens from intense ultraviolet (UV) light exposure from welding torches. This can damage the eyes, similar to sunburn. Symptoms include pain, redness, and light sensitivity. Using proper eye protection is essential to prevent this damage. Proper protective gear is essential to prevent these injuries. Welders … Read more