A review of defect modeling in laser material processing
Thermomechanical modeling of laser material processing in general, and defect modeling in
particular, has raised attention in both academia and industry for the last twenty years …
particular, has raised attention in both academia and industry for the last twenty years …
Investigation on the weld bead profile transformation with the keyhole and molten pool dynamic behavior simulation in high power laser welding
Weld bead profile is highly related to the dynamic behavior of keyhole and molten pool. In
this paper, a three-dimensional transient model is developed to investigate the weld bead …
this paper, a three-dimensional transient model is developed to investigate the weld bead …
A novel “sandwich” method for observation of the keyhole in deep penetration laser welding
Y Zhang, G Chen, H Wei, J Zhang - Optics and Lasers in Engineering, 2008 - Elsevier
A sandwich method was used to observe the keyhole in deep penetration laser welding,
which provided an effective way to analyze both the Fresnel and inverse Bremsstrahlung …
which provided an effective way to analyze both the Fresnel and inverse Bremsstrahlung …
Experimental research on the dynamic behaviors of the keyhole and molten pool in laser deep-penetration welding
Y Zhang, Q Lin, X Yin, S Li, J Deng - Journal of Physics D …, 2018 - iopscience.iop.org
Both the morphology and temperature are two important characteristics of the keyhole and
the molten pool in laser deep-penetration welding. The modified'sandwich'method was …
the molten pool in laser deep-penetration welding. The modified'sandwich'method was …
[PDF][PDF] 光纤激光深熔焊接小孔形成过程的研究
赵乐， 韩雪， 邹江林， 郑凯， 肖荣诗… - Laser & Optoelectronics …, 2020 - researching.cn
摘要为研究小孔的形成过程, 在光纤激光平板扫描焊接低碳钢中, 采用调制激光出光时间的方式
进行实验. 结果表明: 小孔的形成过程极为迅速, 完整的形成时间在ms 量级. 低速焊接时 …
进行实验. 结果表明: 小孔的形成过程极为迅速, 完整的形成时间在ms 量级. 低速焊接时 …
A study on welding mode transition by electrical detection of laser-induced plasma at varying energy levels
S Zhao, L Yang, Y Huang, D Zhao, S Xu - The International Journal of …, 2019 - Springer
The transition between heat conduction and deep penetration laser welding is investigated
by the electrical detection of laser-induced plasma with an electrical passive probe. A further …
by the electrical detection of laser-induced plasma with an electrical passive probe. A further …
Weld pool control in Nd: YAG laser welding
S Postma - 2003 - research.utwente.nl
Weld Pool Control in Nd:YAG Laser Welding Page 1 Weld Pool Control in Nd:YAG Laser
Welding Page 2 Cover image: Enlarged photograph of a stitch weld and a misaligned weld …
Welding Page 2 Cover image: Enlarged photograph of a stitch weld and a misaligned weld …
钛合金(TC4) 电子束焊接模拟
曾庆继， 徐连勇， 韩永典， 荆洪阳， 周春亮 - 焊接学报, 2014 - hjxb.hwi.com.cn
通过工艺试验, 获得了9 mm 厚TC4 电子束焊接最佳工艺参数; 利用有限元软件ABAQUS
建立模型. 结果表明, 模拟焊缝形貌和表面残余应力结果与实测结果具有非常高的一致性 …
建立模型. 结果表明, 模拟焊缝形貌和表面残余应力结果与实测结果具有非常高的一致性 …
In-line monitoring of laser welding using a smart vision system
This paper presents a vision system for the in-line monitoring of laser welding. The system is
based on a coaxial optical setup purposely chosen to guarantee robust detection of the …
based on a coaxial optical setup purposely chosen to guarantee robust detection of the …
Towards better understanding of hyperbaric fiber laser spot welding of metallic material
J Long, LJ Zhang, LL Zhang, XQ Yin, JX Zhang… - Journal of Manufacturing …, 2020 - Elsevier
The effect of hyperbaric environment on fiber laser spot welding (LW) of 304 stainless steel
was explored. The laser power was 3 kW, the welding time was 0.2 s, and the defocus …
was explored. The laser power was 3 kW, the welding time was 0.2 s, and the defocus …