Materials Science. Non-Equilibrium Phase Transformations.
Vol. 4 (2018), Issue 2, pg(s) 49-51

Effect of low-frequency vibration on the structure and residual stresses in SLM Ti-6Al-4V alloy

  • 1 M.N. Miheev Institute of Metal Physics of Ural Branch of Russian Academy of Sciences, Ekaterinburg, Russia
  • 2 Ural State University of railway transport, Ekaterinburg, Russia
  • 3 Regional Engineering Center of laser and additive technology, Ural Federal University, Ekaterinburg, Russia

Abstract

The effect of the low-frequency vibration processing on the residual elastic stresses in the Ti-6Al-4V alloy manufactured by 3D printing (Selective laser melting) was investigated. The studied sample was manufactured horizontally in respect to the building platform. Different vibration oscillations modes (vertical, horizontal, and elliptical) were chosen for study. The oscillations were done with frequency of 16 Hz, and a processing time was 20 minutes. Studies shown that 3D printed sample had a high level of residual elastic stresses, which were changed after vibration treatment. The optimal parameters of vibration processing, which provide a minimum level of residual elastic stresses in 3D printed Ti-6Al-4V alloy are discussed.

Keywords

References

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