Widia (of Wi'e Dia'mant) is a registered label name of the company Krupp for tungsten carbide, a sinter material.

The chemical formula of the Widia material is WC for tungsten carbide. Tungsten carbide into the material cobalt are embedded: Tungsten carbide with cobalt connection. Will grind together to carbide and cobalt, then the powder in presses is injected to so-called These are sintered and further processed afterwards by loops by means of diamond. Partially the tungsten carbides are still coated after sharpening.

The invention of tungsten carbide dates from the year 1926. In meals developed the company Krupp under the label name Widia, of "like diamond", the new carbide material to industriellen the Nutzung.Er 1927 on the Leipziger spring fair was for the first time introduced. Further innovations under Krupp followed among other things with the first patent of the world for coating these cutting tools (1962).

Widia drills are drills, in whose point a plate of this tungsten carbide is let in up-soldered (hardsoldered) or. Thus these drills are also to bore in brick walls and concrete suitably.

In Planschneidern (guillotines) partial tungsten carbide measurers with 75 to 95 per cent tungsten carbide portion are used.

The Widia GmbH was sold to at the beginning of the 1990er years after 70 years ownership on the part of Krupp. The new owner was the US-American manufacturers of machine tools Cincinnati Milacron. Beginning of the 2000er years was resold Widia at the tool manufacturer competitor Kennametal, which integrated the Widia group into its European daughter Kennametal Hertel AG. Up-to-date the Widia carries Kennametal Widia GmbH and CO for the names. Kg and is developed continuously by the Kennametal company to the Premium mark for special's applications.

To the Widia GmbH several production plants and subsidiaries, among other things the former company Sitzmann and Heinlein in the Frankish Lichtenau, belong sales agencies in many countries of the earth as well as production plants in France and Indien.Der main production location are still meal in the Ruhr district. The manufacturing is directly because of the motorway A40 in the quarter meal Holsterhausen.

Hauptprodukte of the enterprise are

• Indexable inserts from tungsten carbide for metal machine cutting, with and without coating,
• the carrier tools for this used to bolt or wedge (in order the tungsten carbide plates),
• new coating sorts for long service lives of the tools (zirconium coating - plasma CVD)
• special tool tools for boring, milling and rotation,
• Paper cut measurer,
• as well as construction construction units from tungsten carbide for the rock boring and meal technology and the cutting and deformation technique.

Widia is in Germany under the register numbers 705396, 470849 and 351828 and internationally under the register numbers 319416 and 231656 as mark protected.

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