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Published in: The International Journal of Advanced Manufacturing Technology 2/2024

06-06-2023 | ORIGINAL ARTICLE

Experimental and numerical investigations of cutting forces and chip formation during precision cutting of Ti42Nb titanium alloy produced by laser-based powder bed fusion

Authors: Houssemeddine Ben Boubaker, Gael Le-Coz, Abdelhadi Moufki, Mohammed Nouari, Pascal Laheurte

Published in: The International Journal of Advanced Manufacturing Technology | Issue 2/2024

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Abstract

In this work, experimental and numerical investigations are conducted to investigate the precision cutting cutting of Ti42Nb titanium alloy produced by laser-based powder bed fusion. Experimental precision cutting tests are carried out using precision turning lathe. Trials are performed with two cutting velocities of 60 m/min and 90 m/min and different feed rates, varying from 5 to 40 \(\mu \)m/rev. For the numerical study, a porous crystal plasticity-based model is proposed to address the impact of anisotropy and microstructure heterogeneities of the polycrystalline material. The crystal plasticity-based model is identified using strain–stress curves obtained from compression tests performed under two strain rates and a wide range of temperatures. Numerical precision cutting simulations are performed in order to gain insight into the impact of crystallographic orientation and grain size on the machinability of the alloy. According to the results, the effect of the strain rates and the temperature on the thermomechanical behavior of the Ti42Nb alloy produced by laser-based powder bed fusion is correctly depicted. The model captured the strain localization on adiabatic shear band. According to the precision cutting simulations, the local variables such as temperature, damage and plastic deformation are strongly impacted by the crystallographic orientation and the grain size. Depending on the crystallographic orientations, the chip morphology changes form continues, slightly segmented to largely segmented.

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Metadata
Title
Experimental and numerical investigations of cutting forces and chip formation during precision cutting of Ti42Nb titanium alloy produced by laser-based powder bed fusion
Authors
Houssemeddine Ben Boubaker
Gael Le-Coz
Abdelhadi Moufki
Mohammed Nouari
Pascal Laheurte
Publication date
06-06-2023
Publisher
Springer London
Published in
The International Journal of Advanced Manufacturing Technology / Issue 2/2024
Print ISSN: 0268-3768
Electronic ISSN: 1433-3015
DOI
https://doi.org/10.1007/s00170-023-11511-0

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