Manufacturing method of TiCN-based cermet sintered body for cutting tool

摘要

The present invention relates to a method for producing a TiCN-based thermoplastic sintered body by placing a TiCN-based cermet formed body on a graphite substrate and sintering the TiCN-based cermet formed body,₃And Y₂O₃Of the mixed powder is placed on a plasma-coated substrate at a thickness of 0.01 to 2 mm and sintered at a temperature of 1450 to 1550% for 1 to 3 hours.;Since the sintered body manufactured according to the present invention uses the substrate coated with plasma for sintering, reaction between the cermet sintered body and the substrate does not occur so that the surface physical properties and internal physical properties of the sintered body are uniform, the hardness and strength are excellent, It can be used directly with cutting tools.