Proceedings of the 5th International Conference on Mechanical Engineering, Materials and Energy (5th ICMEME2016)

Effect of mechanical vibration on the residual stress of direct laser metal deposition workpiece

Authors
Yiqun Feng, Hsuanhan Lai, Chiming Lin, Weite Wu
Corresponding Author
Yiqun Feng
Available Online December 2016.
DOI
https://doi.org/10.2991/icmeme-16.2016.33How to use a DOI?
Keywords
Direct laser metal deposition, mechanical vibration, residual stress.
Abstract

Mechanical vibration with different frequencies was operated during the direct laser metal deposition process in order to discuss the effects of vibration on residual stress and other characters of deposited workpiece in this study. Sub-resonance, resonance and the optimum frequency (OPF) were selected for operation. The results revealed that the residual stress of the deposited workpiece was a tensile stress. With the operation of mechanical vibration, the stress of clad workpiece decreased, and the workpiece vibrated with the OPF showed the lowest residual stress. Microstructures of all the specimens with vibration refined, and the finest structure appeared in the specimen vibrated with the OPF. The hardness result showed that the lower the residual stress was, the lower the hardness was, and a low residual stress and hardness would have advantage of subsequent process of the deposited workpiece.

Copyright
© 2016, the Authors. Published by Atlantis Press.
Open Access
This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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Volume Title
Proceedings of the 5th International Conference on Mechanical Engineering, Materials and Energy (5th ICMEME2016)
Series
Advances in Engineering Research
Publication Date
December 2016
ISBN
978-94-6252-281-7
ISSN
2352-5401
DOI
https://doi.org/10.2991/icmeme-16.2016.33How to use a DOI?
Copyright
© 2016, the Authors. Published by Atlantis Press.
Open Access
This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

Cite this article

TY  - CONF
AU  - Yiqun Feng
AU  - Hsuanhan Lai
AU  - Chiming Lin
AU  - Weite Wu
PY  - 2016/12
DA  - 2016/12
TI  - Effect of mechanical vibration on the residual stress of direct laser metal deposition workpiece
BT  - Proceedings of the 5th International Conference on Mechanical Engineering, Materials and Energy (5th ICMEME2016)
PB  - Atlantis Press
SP  - 177
EP  - 180
SN  - 2352-5401
UR  - https://doi.org/10.2991/icmeme-16.2016.33
DO  - https://doi.org/10.2991/icmeme-16.2016.33
ID  - Feng2016/12
ER  -