It offered a high deposition rate, but the high cost of inert gases limited its use to non-ferrous materials and prevented cost savings.
en.wikipedia.org However, it does have some industry which includes foodstuffs, non-ferrous metallurgy, chemicals, gold mining, footwear, dairying and timber.
en.wikipedia.org Electric arc furnaces are also used for production of calcium carbide, ferroalloys and other non-ferrous alloys, and for production of phosphorus.
en.wikipedia.org It was derived from the methods used in eddy-current testing and works on all metals, ferrous or non-ferrous.
en.wikipedia.org The casting of light and non-ferrous metals, forging, pressing, stamping and roll forming of metal and the management of waste, as well.
en.wikipedia.org