2D Modeling of acoustic radiation in laser welding process
In this paper, 2D modeling results are presented concerning the acoustic radiation in laser welding process. Two dimensional horizontal shape models of the acoustic radiation are determined based on the theoretical investigation of heat balance. Four kinds of models corresponding to four different types of welding speeds have been presented and the spherical field point meshes also have been built up to obtain spatial distributions of the acoustic radiation. Typical experiments are presented with the continuous wave Nd:YAG laser welding of an iron workpiece and a sound-proofing equipment which could isolate the surrounding noisy. The predicted pressure levels of acoustic radiation are reasonably consistent with the experimental measurements. And experimental measurements also are improved to the extent that the models could be used to predict the acoustic radiation in the laser welding process. The results show that the proposed analysis models for predicting the acoustic radiation are proven to be effective. Meanwhile, relationships between the pressure levels of acoustic radiation and the welding speeds are also discussed, which conduces to further understand the physical mechanism of the laser audible acoustic signal.
Laser welding Audible acoustic signal 2D modeling Acoustic radiation Sound-proofing equipment
Luo Zhen Ao Sansan Xuan Wenbo Li Yang Yao Anren
School of Material Science and Engineering，Tianjin University，Tianjin 300072，China Tianjin Key Laboratory of Advanced Joining Technology，Tianjin University，Tianjin 300072，China
国际会议
济南
英文
1-12
2012-08-24（万方平台首次上网日期，不代表论文的发表时间）