Effect of alloyed target vis-à-vis pure target on machining performance of TiAlN coating

Paranjayee Mandal, Soumitra Paul

Research output: Contribution to journalArticle

2 Citations (Scopus)
43 Downloads (Pure)

Abstract

Typically closed-field unbalanced magnetron sputtering (CFUBMS) and controlled cathodic arc deposition techniques having four or six pure or alloyed targets are employed for commercial titanium aluminium nitride (TiAlN) coating of cutting tools. The role of the use of alloyed target vis-à-vis pure target on the coating characteristics and the machining performance of TiAlN-coated tools has not been studied in detail. In the present work, TiAlN coating has been deposited on cutting tools using a pulsed DC, dual-cathode CFUBMS system to capture the role of the type of target on machining performance. The deposition rate in the case of the alloyed target has been found to be much higher as compared to the pure target. Such coatings deposited from alloyed targets also provided significantly better machining performance in dry turning of low-carbon and high-carbon steel. Dry turning of SAE 1070 high-carbon steel at 160 m/min did not yield more than 100 μm of average flank wear on the same insert coated using alloyed targets for a machining time of more than 3 min.
Original languageEnglish
Pages (from-to)721-731
Number of pages11
JournalInternational Journal of Advanced Manufacturing Technology
Volume66
Issue number5-6
Early online date11 Jul 2012
DOIs
Publication statusPublished - 31 May 2013

Keywords

  • TiAlN coating
  • pulsed DC
  • pure target
  • alloyed target
  • machining performance

Fingerprint Dive into the research topics of 'Effect of alloyed target vis-à-vis pure target on machining performance of TiAlN coating'. Together they form a unique fingerprint.

Cite this