Many welders assume porosity is caused mainly by incorrect amperage, but trapped gas is the immediate problem. Moisture, contamination, inadequate shielding gas, excessive arc length, and poor welding technique can all allow gas to enter the molten weld pool and remain as cavities after solidification. Understanding what is the cause of porosity in arc welding…
Arc welding is not based on the electrode simply touching the metal. It depends on a controlled electric arc that creates enough heat to melt the joint area, while the power source, electrode, and shielding method control how the weld forms. In practical terms, what is the basis of the arc welding process comes down…
Submerged arc welding is mainly used to join thick steel sections in long, continuous welds where high production speed, deep penetration, and consistent quality matter. It is common in controlled shop environments rather than small repairs, thin sheet work, or outdoor welding. If you are asking what is submerged arc welding used for, the short…
Many people use “short arc welding” as if it means a short welding arc. In practice, it usually refers to short-circuit transfer, a mode of gas metal arc welding (GMAW), commonly called MIG welding, in which the continuously fed wire briefly touches the weld pool and creates a repeating electrical short circuit. If you are…
When an arc welder produces excessive spatter, poor penetration, or an unstable arc, the problem may be the polarity setting rather than the machine itself. In simple terms, polarity is the direction of electrical current between the electrode and the workpiece, and the correct choice depends on the welding process, electrode, and material. If you…
Plasma arc welding is used to make precise, high-quality welds in metals that require controlled heat and a stable arc. It is especially useful for stainless steel, titanium, nickel alloys, aluminum, and other conductive materials in applications where weld accuracy, penetration, and repeatability matter. If you are asking what is plasma arc welding used for,…
When someone asks how many types of arc welding are there, it’s easy to assume there’s a single, straightforward answer. However, the reality is a bit more nuanced than a simple number. While many might think of just one or two common methods, arc welding encompasses a family of processes, each with distinct characteristics, applications,…
Manual arc welding is a welding method in which an operator creates and controls an electric arc to melt metal and form a permanent joint. In common industrial use, the term usually refers to shielded metal arc welding (SMAW), also called stick welding, although it can describe other manually controlled arc processes. If you are…
What is gas tungsten arc welding used for? It is used when a clean, precise, highly controlled weld matters more than production speed. The process is especially valuable for thin metal, stainless steel, aluminum, titanium, nickel alloys, copper, and other materials that require careful heat control. Known as gas tungsten arc welding (GTAW) or tungsten…
Flux cored arc welding is used to join steel and other metals efficiently, especially when high deposition rates, outdoor capability, and strong weld penetration are important. It is common in construction, heavy equipment repair, shipbuilding, structural fabrication, and manufacturing. If you are asking what is flux cored arc welding used for, the short answer is…