2019

chapter in monograph

english

EN This article presents the investigations of durability of the cutting tools (insert cutting edges) made of the nanocrystalline sintered carbides. Cutting insert edges were sintered using the Pulse Plasma Sintering (PPS) method elaborated at the Department of Materials Science Warsaw University of Technology. This article contains the results of comparative investigations of durability of the cutting edges made of WC-5wt% Co nanocrystalline cemented carbides with the TaC-NbC or Cr₃C₂ growth inhibitor and without it sintered by the PPS method, and cutting edges made of a standard cemented carbides of the same chemical composition (obtained by the Hot Pressing (HP) method) during turning the EN-36CrNiMo4 (PN-36HNM) toughening steel. The nanocrystalline cemented carbides have much higher hardness and smaller average grain size than standard carbides with the same chemical composition. For these reasons, cutting inserts made of the nanocrystalline cemented carbides particularly with TaC-NbC inhibitor have significantly greater hardness and from here greater resistance to wear and greater durability during machining the toughening steel.

31.12.2018

331 - 340

10.1007/978-3-030-02257-0_24

http://link.springer.com/chapter/10.1007/978-3-030-02257-0_24

Materials Design and Applications II

20