Mechanic of Advanced and Smart Materials
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Investigating the effect of cutting speed and cutting depth during nickel-iron-chromium alloys nano machining of by response surface methodology and molecular dynamics simulation

Articles in Press

Document Type : Original Article

Authors

mojtaba zolfaghari 1
hamed heydari 2
mohammad javad ghasemi 1
vahid tahmasbi 3

1 School of Mechanic Engineering, Arak University, Arak, Iran

2 School of Mechanic Engineering, Shahrekord University, Shahrekord, Iran

3 Department of Mechanical Engineering, Arak University Of Technology, Arak, Iran

10.61186/masm.2025.2048564.1145
Abstract
Ultra-precision machining refers to the process of manufacturing very high-precision parts that are required in industries such as aerospace, medicine, optics, and electronics, where nanometer tolerances, fine surface coatings, and precise geometries are essential. In this research, the nano-machining process of polycrystalline nickel-iron-chromium alloy has been investigated using the molecular dynamics method. Investigating the effects of cutting speed and cutting depth parameters on this process by the response surface method shows that by reducing the cutting speed from 400 to 10 m/s, the cutting depth from 5 to 0.5 nm, the values of cutting forces, normal forces and the Von Mises stress of the workpiece decreases by 65.9, 23.4 and 25.58 percent, respectively. When the cutting depth was set to 0.5 nm and the cutting speed was 10 m/s, the temperature reached 308.82 K. At this state, the machining forces—including cutting forces and Thrust force —were measured at 152.42 and 221.2 (eV/n), respectively. This configuration minimizes the machining forces, resulting in an optimized state for the machining process. The investigation of structural changes using the radial distribution function shows that increasing the cutting speed from 10 m/s to 400 m/s, while maintaining a cutting depth of 2.75 nm, results in an increase of 10 units in the radial distribution function. This change has contributed to the structural alterations of the workpiece.

Keywords

Nano-machining
polycrystalline alloy
molecular dynamics
Mechanic of Advanced and Smart Materials

Articles in Press, Accepted Manuscript
Available Online from 23 February 2025

  • Receive Date 20 December 2024
  • Revise Date 15 January 2025
  • Accept Date 22 February 2025

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