The U.S. Supreme heard arguments in an affirmative action case from Texas for the second time Wednesday. The U.S. Supreme heard arguments in an affirmative action case from Texas for the second time Wednesday.
Welding is a fabrication or sculptural process that joins materials, usually metals or thermoplastics, by causing fusion, which is distinct from lower temperature metal-joining techniques such as brazing and soldering, which do not melt the base metal.as tungsten arc welding (GTAW), or tungsten inert gas (TIG) welding, is a manual welding process that uses a nonconsumable tungsten electrode, an inert or semi-inert gas mixture, and a separate filler material.
Welding is the process of joining metals by melting the parts and then using a filler to form a joint. It can be done using different energy sources, from a gas flame or electric arc to a laser or ultrasound.rc welding makes use of an electrical current. Welders wear special helmets and gloves for protection. Welders use extreme heat that is supplied by either an electrical current or gas to connect two metal surfaces. There are various types of welding.