Title: Tribological and machining performance of tungsten carbide cutting tool material coated with different carbon nitride films

Authors: Fırat Dumlu; Tevfik Oğuzhan Ergüder; Gürkan Kaya; İlyas Hacısalihoğlu; Fatih Yildiz

Addresses: Department of Mechanical Engineering, Erzurum Technical University, Erzurum, Turkey ' Department of Mechanical Engineering, Erzurum Technical University, Erzurum, Turkey ' Department of Mechanical Engineering, Erzurum Technical University, Erzurum, Turkey ' Department of Mechanical Engineering, Erzurum Technical University, Erzurum, Turkey ' Department of Mechanical Engineering, Erzurum Technical University, Erzurum, Turkey

Abstract: In this study, the tribological properties of tungsten carbide (WC) cutting tools coated with AlTiCN and CrCN ceramic films and their machining performance were investigated in both CNC vertical machining centre and lathe. The coatings were applied on end milling tools, lathe inserts and 12 × 12 × 5 mm sized test samples by cathodic arc physical vapour deposition (CAPVD) method. The plastic injection mould steel workpiece was machined with high-speed dry cutting by CNC vertical machining centre and with coolant by CNC lathe to determine the cutting and wear performance of coated and uncoated tools. According to the results, it was determined that AlTiCN has higher microhardness and adhesion value and lower wear rate value than CrCN. It was also determined that the tools coated with AlTiCN thin film have superior properties in terms of both mass loss and flank wear width after machining processes.

Keywords: AlTiCN; CrCN; CAPVD; carbon nitride film; cutting tool; wear; imachining; surface roughness.

DOI: 10.1504/IJSURFSE.2022.125450

International Journal of Surface Science and Engineering, 2022 Vol.16 No.3, pp.258 - 275

Received: 17 Jan 2022
Accepted: 15 Mar 2022
Published online: 09 Sep 2022 *

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