Modelling of micro-machining of Ti-6Al-4V

strain gradient interpretation

Authors

  • Rahul Yadav Indian Institute of Technology Kharagpur, Kharagpur, India
  • Gautam Kumar Indian Institute of Technology Kharagpur, Kharagpur, India
  • Nilanjan Das Chakladar Indian Institute of Technology Kharagpur, Kharagpur, India
  • Soumitra Paul Indian Institute of Technology Kharagpur, Kharagpur, India

DOI:

https://doi.org/10.58368/MTT.22.4.2023.32-38

Keywords:

Micro-Cutting, Residual Stress, Chip Morphology, Ti-6Al-4V

Abstract

Advances in computer methods over the last two decades have accelerated research in engineering sectors because of high computing power. Micro-machining is a manufacturing domain that is widely utilized for producing miniature components where predictability is a concern. The current work emphasized developing and executing a user-defined constitutive flow and friction models to simulate the physical phenomenon of chip morphology, residual stresses, and cutting forces during orthogonal machining at the micro-scale. The proposed model integrates strain gradient and dynamic recrystallization effect using a user hardening subroutine written in Fortran for machining of Ti-6Al-4V in micron scale. Furthermore, a user defined friction subroutine was implemented at the tool-chip interaction. A comparison is made between the modelling results and experiments in terms of specific cutting energy (SCE) and residual stresses.

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Published

01-04-2023

How to Cite

Yadav, R., Gautam Kumar, Das Chakladar, N., & Paul, S. (2023). Modelling of micro-machining of Ti-6Al-4V: strain gradient interpretation. Manufacturing Technology Today, 22(4), 32–38. https://doi.org/10.58368/MTT.22.4.2023.32-38

Issue

Vol. 22 No. 4 (2023): April 2023

Section

Articles

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