Page 32 - Tungaloy Catalog
P. 32

Cermet
    1
             Coated Cermet                          Cermet consists of a hard phase and a binding phase, which is the case with

                     “Premium
      Grades        Ti (C, N, O) base               cemented carbides. The hard phase consists mainly of Titanium carbide TiC
                       -Coating”
                                                    and Titanium nitride TiN. These carbides and nitrides have superior strength
                                                    and oxidation resistance when working at high temperatures when compared
             Increasing wear resistance (hardness) Increasing impact resistance (toughness)  GT9530  ensures high crater resistance. Finally, Cermet grades are applicable to high
                                                    with Tungsten carbide WC.
                                                    Furthermore, there is little tendency to react with the work material and this
                                                    and low speed cutting ranges while delivering excellent surface roughness.
                                                        For Turning  “Super fine Cermets” GT730, NS730 and
                                                        our NEW NS9530 and GT9530
                                                      Cermet creates a high quality surface finish due to the combination of “Fine-
                                                      grain reinforcement technology” and “Surface smoothing technology”. This
                                                      improves the impact resistance, which is generally a weak point of Cermet.
                                                    n“Fine-grain reinforcement technology”
                                                        This technology enhances the reliability and performance of the grade. It
                                                      offers improved wear and impact resistance with its high bonding strength,
                                                      heat resistant Titanium compound and fine bonding grain Titanium
                                                      compound that prevents crack propagation and improves toughness.
                                                    n“Surface smoothing technology”
                                                        The cutting edge remains smooth at all times by means of the fine grain
                                                      heat resistant Titanium compound and specialized sintering technology.
















                                                                             GT9530

             Uncoated                                   For Milling “Skeleton Reinforced Cermets” NS740

                                                    n“Skeleton reinforced technology”
                                                        “Skeleton reinforced technology” enhances toughness while keeping
             Increasing wear resistance (hardness)  NS9530  Improved bonding  /  Improved
                                                      hardness by means of improvement of bonding strength among ceramic
                                                      compound grain.

                                                     between grains
                                                                      toughness
                 Increasing impact resistance (toughness)  NS740        Co, Ni phase  Microstructure of NS740
                                                                         Ceramics
                                                                         grains

                                                                         Bonded
                                                                         grains














     1–8
   27   28   29   30   31   32   33   34   35   36   37