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  Scopus ID: 21100926589

Comparative Evaluation of Cylindrical Error of CNC Turned HCHCR D2 Steel using Novel CrTiN PVD Coated with Uncoated HSS Tools

T. Mukesh Kumar and A. Bovas Herbert Bejaxhin

Abstract

This study aims to conduct a comprehensive comparative analysis of Cylindrical Error in the CNC turning of HCHCR D2 steel using Novel CrTiN Physical Vapor Deposition (PVD) coated tools versus uncoated high-speed steel (HSS) tools. The research involved HCHCR D2 steel as the work material and employed both CrTiN PVD coated and uncoated tools. Key input parameters, including cutting speed, feed rate, and depth of cut, were systematically varied across four distinct levels, resulting in 32 samples (16 for each tool type) analyzed under CNC machining conditions with a sample size at G power 80%. The findings unequivocally demonstrate that the use of novel CrTiN-coated HSS tools led to a substantial reduction in cylindrical error compared to uncoated HSS tools. The statistical significance, as indicated by a p-value of 0.000 (both 2-tailed), highlights the robustness of this improvement and establishes its statistical significance (p < 0.05).On average, the use of CrTiN PVD-coated tools resulted in a remarkable 24.2% reduction in Cylindrical Error when compared to uncoated tools during the machining of high-strength HCHCR D2 steel. This research underscores the superior performance of CrTiN PVD-coated tools, emphasizing their effectiveness in achieving higher machining precision and reduced errors. These findings have important implications for enhancing machining quality and cost-effectiveness in industrial applications involving HCHCR D2 steel.

Published on: November 03, 2023
doi: 10.17756/nwj.2023-s3-188
Citation: Kumar TM, Bejaxhin ABH. 2023. Comparative Evaluation of Cylindrical Error of CNC Turned HCHCR D2 Steel using Novel CrTiN PVD Coated with Uncoated HSS Tools. NanoWorld J 9(S3): S1064-S1068.

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