NEW GENERATION NANO-CBN CUTTING TOOL FOR INCREASING SUSTAINABILITY OF HARD TURNING PROCESS

Mohammad Reza Nayeri and Mohammad Mahdi Abootorabi
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Mohammad Reza Nayeri: Department of Mechanical Engineering, Yazd University, Yazd, Iran
Mohammad Mahdi Abootorabi: Department of Mechanical Engineering, Yazd University, Yazd, Iran

Surface Review and Letters (SRL), 2022, vol. 29, issue 10, 1-10

Abstract: In this paper, the effect of minimum quantity lubrication (MQL) on tool wear in the hard turning of 100Cr6 ball bearing steel has been investigated and the results are compared to those obtained through dry and wet lubrication methods. The tools used in the study include CBN and nano-CBN tools. The nano-CBN tool is a new generation of CBN tools manufactured based on nanotechnology. No research has been conducted on the impact of this tool on machining processes. The ratio of NCBN tool flank wear land to the CBN tool flank wear land in dry, wet and MQL methods were 0.18, 0.23 and 0.28, respectively. The wear of CBN tool in turning with MQL was 2.8 times greater than the wear of nano-CBN tool in dry machining. In turning with nano-CBN tool, the height of the tool flank wear with MQL was reduced by 22% and 7% concerning wet and dry methods, respectively, while these values were 51% and 24%, respectively, for the CBN tool. The CBN tool wear depends on the lubrication method but the wear of the nano-CBN tool is almost independent of the lubrication method.

Keywords: Hard turning; tool wear; minimum quantity lubrication; CBN; nano-CBN; sustainability (search for similar items in EconPapers)
Date: 2022
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DOI: 10.1142/S0218625X22501396

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