Early Signs of Tool Damage in Dry and Wet Turning of Chromium–Nickel Alloy Steel

Tanuj Namboodri (), Csaba Felhő and István Sztankovics
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Tanuj Namboodri: Institute of Manufacturing Science, Faculty of Mechanical Engineering and Informatics, University of Miskolc, 3515 Miskolc, Hungary
Csaba Felhő: Institute of Manufacturing Science, Faculty of Mechanical Engineering and Informatics, University of Miskolc, 3515 Miskolc, Hungary
István Sztankovics: Institute of Manufacturing Science, Faculty of Mechanical Engineering and Informatics, University of Miskolc, 3515 Miskolc, Hungary

J, 2025, vol. 8, issue 3, 1-11

Abstract: Machining chromium–nickel alloy steel is challenging due to its material properties, such as high strength and toughness. These properties often lead to tool damage and degradation of tool life, which overall impacts the production time, cost, and quality of the product. Therefore, it is essential to investigate early signs of tool damage to determine the effective machining conditions for chromium–nickel alloy steel, thereby increasing tool life and improving product quality. In this study, the early signs of tool wear were observed in a physical vapor deposition (PVD) carbide-coated tool (Seco Tools, Björnbacksvägen, Sweden) during the machining of X5CrNi18-10 steel under both dry and wet conditions. A finish turning operation was performed on the outer diameter (OD) of the workpiece with a 0.4 mm nose radius tool. At the early stage, the tool was examined from the functional side (f–side) and the passive side (p–side). The results indicate that dry machining leads to increased coating removal, more heat generation, and visible damage, such as pits and surface scratches. By comparison, wet machining helps reduce heat and wear, thereby improving tool life and machining quality. These findings suggest that a coolant must be used when machining chromium–nickel alloy steel with a PVD carbide-coated tool.

Keywords: tool wear; PVD carbide coating; chromium–nickel alloy steel; tool health (search for similar items in EconPapers)
JEL-codes: I1 I10 I12 I13 I14 I18 I19 (search for similar items in EconPapers)
Date: 2025
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