scholarly journals Residual Stress Modeling and Deformation Measurement in Laser Metal Deposition Process

2020 ◽  
Author(s):  
Heng Liu ◽  
Frank Liou
Keyword(s):  
Residual Stress ◽  
Deposition Process ◽  
Metal Deposition ◽  
Deformation Measurement ◽  
Laser Metal Deposition ◽  
Stress Modeling ◽  
Residual Stress Modeling

scholarly journals Residual Stress Modeling with Phase Transformation for Wire Arc Additive Manufacturing of B91 Steel

JOM ◽  
2020 ◽  
Vol 72 (12) ◽  
pp. 4178-4186
Author(s):  
Xavier Jimenez ◽  
Wen Dong ◽  
Santanu Paul ◽  
Michael A. Klecka ◽  
Albert C. To
Keyword(s):  
Residual Stress ◽  
Phase Transformation ◽  
Additive Manufacturing ◽  
Stress Modeling ◽  
Wire Arc Additive Manufacturing ◽  
Residual Stress Modeling

Study of TI64 Vibration Laser Metal Deposition Process

2011 ◽  
Vol 189-193 ◽  
pp. 512-517 ◽  
Author(s):  
Xue Yong Chen ◽  
Todd Sparks ◽  
Jian Zhong Ruan ◽  
Frank Liou
Keyword(s):  
Design Of Experiments ◽  
Grain Refinement ◽  
Crystalline Structure ◽  
Vibration Frequency ◽  
Deposition Process ◽  
Metal Deposition ◽  
Laser Deposition ◽  
Laser Metal Deposition ◽  
Direct Deposition ◽  
Laser Direct Deposition

This paper presents the usage of vibration in laser direct deposition of Ti64. The vibration is used to refine the crystalline structure of the deposition. The vibration device vibrates in the laser deposition system along the Z axis. 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 microhardness over that of samples from no-vibration. Also, vibration frequency is a significant factor. From the experiment results, it is found that a vibration frequency greater than 20Hz is desirable.

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