Cemented carbide and cutting tool

Details Cemented carbide and cutting tool Cemented carbide and cutting tool

2006-03-28

2006-03-28

Turner, Archene (Department: 1775)

Stock material or miscellaneous articles

Composite

Of inorganic material

C428S212000, C428S217000, C428S336000, C428S408000

Reexamination Certificate

active

07018726

ABSTRACT:
There is provided a cemented carbide comprising a hard phase component which comprises a tungsten carbide (WC) and at least one selected from carbides, nitrides and carbonitrides of metals of the groups4a, 5aand6ain the periodic table; and a binder phase component comprising at least one of iron-group metals, wherein the surface region of the cemented carbide has 90–98% of the minimum hardness as compared with internal hardness, thereby having high hardness and toughness which is suitable to using as a cutting tool.

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