Effect of mechanical vibration on the residual stress of direct laser metal deposition workpiece
- https://doi.org/10.2991/icmeme-16.2016.33How to use a DOI?
- Direct laser metal deposition, mechanical vibration, residual stress.
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.
- © 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 -