Study of Ultrasonic Vibration Laser Metal Deposition Process
This paper presents the usage of ultrasonic vibration in laser direct deposition of 316L (stainless steel) powder. Ultrasonic vibration is used to refine the crystalline structure of the deposition. The ultrasonic vibration device vibrates in the laser deposition system along the Z axis while the system is performing metal deposition. A design of experiments approach is applied in studying the effect of vibration on the deposited material. Vibration during deposition led to grain refinement and an increase in micro-hardness. Also, vibration frequency is a significant factor in determining microstructure.
X. Chen et al., "Study of Ultrasonic Vibration Laser Metal Deposition Process," ASME Proceedings - Additive Manufacturing, American Society of Mechanical Engineers (ASME), Jan 2012.
The definitive version is available at http://dx.doi.org/10.1115/ISFA2012-7124
ASME/ISCIE 2012 International Symposium on Flexible Automation
Mechanical and Aerospace Engineering
Keywords and Phrases
Metals; Lasers; Vibration
Article - Conference proceedings
© 2012 American Society of Mechanical Engineers (ASME), All rights reserved.