Arabian Journal for Science and Engineering

, Volume 41, Issue 11, pp 4531–4552 | Cite as

Comparative Assessment on Machinability Aspects of AISI 4340 Alloy Steel Using Uncoated Carbide and Coated Cermet Inserts During Hard Turning

  • Anshuman DasEmail author
  • Akash Mukhopadhyay
  • S. K. Patel
  • B. B. Biswal
Research Article - Mechanical Engineering


This paper compares the performances of uncoated carbide and coated cermet inserts for varied machinability aspects throughout the machining of hardened steel (AISI 4340, 48 HRC) in the dry cutting surroundings. Cutting speed, feed, and depth of cut were thought of as major governing parameters. Workpiece surface temperature, machining forces, and tool flank wear were taken as measures to check the performance estimation of various cutting inserts during this work. All the three input variables were ascertained to possess influence over workpiece surface temperature, feed, and radial force in case of uncoated carbide and cermet. Cermets exceeded the performance of carbides for flank wear, cutting force, and workpiece surface temperature, although carbides outperformed cermets concerning feed and radial force. The depth of cut was found to be the most vital, once feed and cutting forces were involved, whereas it had been true for radial force using carbides. Cutting speed affected workpiece surface temperature and flank wear for carbides the most; in the meantime, this was the same once considering the radial force with cermets. The feed was the foremost vital parameter, while the flank wear of cermets was taken into account. ANOVA, regression analysis, and main effect plots were accomplished using the MINITAB-16 software.


Hard turning Hardened alloy steel Flank wear Cutting forces Surface temperature of workpiece 

List of symbols


Analysis of variance


American Iron and Steel Institute


Chemical vapor deposition


Depth of cut (mm)


Degree of freedom




Feed (mm/rev)


Axial/feed force (N)


Thrust/radial force (N)


Tangential/cutting force (N)


Rockwell hardness in C scale


Entering/approach angle (\({^{\circ}}\))


Machining length (mm)


Minimum quantity lubrication


Mean square


Physical vapor deposition


Peclet number


Coefficient of multiple determinations


Nose radius (mm)


Sum of squares


Scanning electron microscope


Society of automotive engineers


Workpiece surface temperature (\({^{\circ}}\)C)


Cutting speed (m/min)


Cutting speed (m/s)


Flank wear of inserts (mm)


Thermal diffusivity (m2/s)

\({\alpha_{{\rm o}}}\)

Clearance angle (\({^{\circ}}\))

\({\gamma_{{\rm o}}}\)

Rake angle (\({^{\circ}}\))


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Copyright information

© King Fahd University of Petroleum & Minerals 2016

Authors and Affiliations

  • Anshuman Das
    • 1
    Email author
  • Akash Mukhopadhyay
    • 2
  • S. K. Patel
    • 2
  • B. B. Biswal
    • 1
  1. 1.Department of Industrial DesignNIT RourkelaOdishaIndia
  2. 2.Department of Mechanical EngineeringNIT RourkelaOdishaIndia

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