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.
Arc welding with consumable electrodes Arc welding (AW) is a fusion welding process in which coalescence of the metals is achieved by the heat from an electric arc between an electrode and the work. A generic AW process is shown in the figure: The basic configuration of an arc welding operation.