Sandvik Intellectual Property Ab

Seco Tools Ab

Alexandra Kusoffsky

Susanne Norgren

Alistair Grearson

Bo Jansson

Leif Åkesson

Nobom Gretta Hashe

Hans-Olof Andrén

Johannes Henoch Neethling

The present invention relates to a fine grained WC-Co cemented carbide. By adding an extremely small amount of Ti, V, Zr, Ta or Nb alone or in combinations, a grain refined cemented carbide structure with less abnormal WC-grains has been obtained.

Fine grained cemented carbide with refined structure

The present invention relates to a WC&#x2014;Co cemented carbide alloy. By adding an extremely small amount of Ti, V, Zr, Ta or Nb or a combination of these, a grain refined cemented carbide structure with less abnormal WC-grains has been obtained.

Cemented carbide with refined structure

The present invention relates to a cutting tool insert for turning consisting of a cemented carbide substrate and a coating. The cemented carbide substrate comprises WC, binder phase, and vanadium containing cubic carbide phase with a binder phase enriched surface zone essentially free of cubic carbide phase. The thermal properties of the vanadium-containing cubic phase, has turned out to give excellent resistance to thermal cracking of the insert.

Sintered cemented carbides using vanadium as gradient former

There is disclosed a fine grained cutting tool insert consisting of a cemented carbide substrate and a coating. The cemented carbide substrate comprises WC, binder phase, and vanadium containing cubic carbide phase with a binder phase enriched surface zone essentially free of cubic carbide phase.

Growing community of inventors

Lidingö, Sweden

Alexandra Kusoffsky