Effects of TiN single layer coating on the wear of ZTA cutting inserts and surface roughness of workpiece

Ahmad Azhar, Ahmad Zahirani and Mokhtar,, Mokhzani and Ratnam, Mani Maran and Ahmad, Zainal Arifin (2017) Effects of TiN single layer coating on the wear of ZTA cutting inserts and surface roughness of workpiece. In: International Conference on X-Rays and Related Techniques in Research and Industry, ICXRI 2016, 17-18 August, 2016, Dorsett Hotel, Putrajaya.

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Abstract

Single layer TiN coated and uncoated zirconia toughened alumina (ZTA) cutting inserts were fabricated and used to machine stainless steel 316 in a turning process. The powders of alumina, yttria partially stabilized zirconia and magnesia were mixed and uniaxially pressed into rhombic cutting tool inserts and subsequently sintered at 1600°C for four hours in air. The inserts were coated with TiN layer using the PVD process. Results of wear area illustrate that the coated ZTA inserts show 66.7% increase in wear resistance compared to uncoated ZTA inserts. Commercially available Si3N4 inserts were used to compare the wear performance. Results of Si3N4 flank wear show a 64% more wear resistance compared to coated ZTA inserts. This may be attributed to the lower strength of coated ZTA cutting insert flank. Therefore, it is shown that single coating of TiN provides a significant advantage in the ZTA cutting performance and better quality surface finish

Item Type:	Conference or Workshop Item (Plenary Papers)
Additional Information:	6954/57345
Uncontrolled Keywords:	Coating; Machining; Surface roughness TiN ZTA
Subjects:	S Agriculture > SB Plant culture T Technology > TJ Mechanical engineering and machinery
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Engineering Kulliyyah of Engineering > Department of Manufacturing and Materials Engineering
Depositing User:	Dr Ahmad Zahirani Ahmad Azhar
Date Deposited:	20 Jun 2017 15:03
Last Modified:	01 Nov 2017 15:08
URI:	http://irep.iium.edu.my/id/eprint/57345

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