Title: Mechanical properties and cutting performance of TiCN-based cermets fabricated by spark plasma sintering

Authors: Siwen Tang; Deshun Liu; Pengnan Li; Lingli Jiang; Qiulin Niu

Addresses: Hunan Provincial Key Laboratory of Health Maintenance for Mechanical Equipment, Hunan University of Science and Technology, Xiangtan 411201, China ' Hunan Provincial Key Laboratory of Health Maintenance for Mechanical Equipment, Hunan University of Science and Technology, Xiangtan 411201, China ' Hunan Provincial Key Laboratory of High Efficiency and Precision Machining of Difficult-to-Cut Material, Hunan University of Science and Technology, Xiangtan 411201, China ' Engineering Research Center of Advanced Mining Equipment, Ministry of Education, Hunan University of Science and Technology, Xiangtan 411201, China ' College of Mechanical and Electrical Engineering, Hunan University of Science and Technology, Xiangtan 411201, China

Abstract: TiCN-based cermet cutting tools were fabricated by spark plasma sintering. The effect of each component on mechanical properties and cutting performance was studied. The results show that the density, strength, and hardness of TiCN-based cermets can be improved by adding SiC_w and La₂O₃. Compare to TiCN-5Co cermets, TiCN-5Co-1SiC_w and TiCN-5Co-1SiC_w-1La₂O₃ obtained good mechanical properties. Cutting experiments showed that the cutting force on a TiCN-5Co-1SiC_w-1La₂O₃ tool was significantly reduced compared to that on a TiCN-5Co-1SiC_w tool; meanwhile, the wear resistance of TiCN-5Co-1SiC_w-1La₂O₃ was enhanced to a significant extent.

Keywords: cutting performance; mechanical properties; cermets; spark plasma sintering; SPS.

DOI: 10.1504/IJMMM.2018.089475

International Journal of Machining and Machinability of Materials, 2018 Vol.20 No.1, pp.90 - 100

Received: 27 Dec 2016
Accepted: 22 Jul 2017
Published online: 26 Jan 2018 *

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