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Carbide, also called Hard metal or Widia, is a hard metal used in machining Ferrous and non Ferrous Materials. Carbide Turning Inserts will withstand higher cutting temperatures (higher than standard high speed steeltools), allow faster machining with better finishes, closer tolerances on the part and longer tool life. The initial development of cemented and sintered carbide occurred in Germany in the 1920s to replace diamonds as a material for machining metal. The carbide insert found its way onto the German market under the name WIDIA (acronym for WIe DIAmant meaning like diamond) and reached the United States market in 1928.
Today, most Carbide Turning Inserts are made from a combination of Tungsten Carbide (WC), Titanium Carbide (TiC), and Cobalt (Co); the bonding metal. Tungsten and Titanium carbide hard particles provide the insert with the hardness, while the Cobalt makes the insert tougher and impact resistant.