Dynamic behavior of plasma and molten pool of pure titanium during hyperbaric laser welding

2021 ◽  
Vol 115 ◽  
pp. 103686
Author(s):  
Jian Long ◽  
Lin-Jie Zhang ◽  
Jie Ning ◽  
Suck-Joo Na
Keyword(s):  
Laser Welding ◽  
Dynamic Behavior ◽  
Molten Pool ◽  
Pure Titanium

Effect of Laser Welding with Filler Wire on Molten Pool Dynamic Behavior and Weld Formation

2017 ◽  
Vol 44 (11) ◽  
pp. 1102004
Author(s):  
彭 进 Peng Jin ◽  
王星星 Wang Xingxing ◽  
李 刚 Li Gang ◽  
崔大田 Cui Datian ◽  
王孝虎 Wang Xiaohu
Keyword(s):  
Laser Welding ◽  
Dynamic Behavior ◽  
Molten Pool ◽  
Filler Wire ◽  
Weld Formation

Effect of droplet filling position on dynamic behavior of molten pool in laser welding

2020 ◽  
Vol 49 (6) ◽  
pp. 20200025
Author(s):  
彭进 Jin Peng ◽  
王星星 Xingxing Wang ◽  
许红巧 Hongqiao Xu ◽  
杨嘉佳 Jiajia Yang ◽  
张芙蓉 Furong Zhang
Keyword(s):  
Laser Welding ◽  
Dynamic Behavior ◽  
Molten Pool

Effect of droplet filling position on dynamic behavior of molten pool in laser welding

2020 ◽  
Vol 49 (6) ◽  
pp. 20200025
Author(s):  
彭进 Jin Peng ◽  
王星星 Xingxing Wang ◽  
许红巧 Hongqiao Xu ◽  
杨嘉佳 Jiajia Yang ◽  
张芙蓉 Furong Zhang
Keyword(s):  
Laser Welding ◽  
Dynamic Behavior ◽  
Molten Pool

Numerical Simulation of Influence of Welding Speed on Dynamic Behavior of Laser Welding Molten Pool with Filler Metal

2020 ◽  
Vol 47 (3) ◽  
pp. 0302005
Author(s):  
彭进 Peng Jin ◽  
许红巧 Xu Hongqiao ◽  
王星星 Wang Xingxing ◽  
杨嘉佳 Yang Jiajia ◽  
李宁宁 Li Ningning ◽  
...  
Keyword(s):  
Numerical Simulation ◽  
Laser Welding ◽  
Dynamic Behavior ◽  
Welding Speed ◽  
Molten Pool ◽  
Filler Metal

Influence of laser pulse on solidification of molten pool during laser welding of dissimilar Ti-based amorphous alloys

2021 ◽  
Vol 26 (3) ◽  
pp. 264-272
Author(s):  
Minghua Chen ◽  
Dongmin Wei ◽  
Chenbin Li ◽  
Liang Liu ◽  
Qi Zhou ◽  
...  
Keyword(s):  
Laser Pulse ◽  
Laser Welding ◽  
Amorphous Alloys ◽  
Molten Pool

Experiment study and regression analysis of molten pool in laser welding

2018 ◽  
Vol 108 ◽  
pp. 534-541 ◽  
Author(s):  
Ting Lei ◽  
Youmin Rong ◽  
Jiajun Xu ◽  
Yu Huang
Keyword(s):  
Regression Analysis ◽  
Laser Welding ◽  
Molten Pool ◽  
Experiment Study

Segmentation of Molten Pool Infrared Images Using Morphology during High Power Disk Laser Welding

2012 ◽  
Vol 201-202 ◽  
pp. 91-94
Author(s):  
Yan Xi Zhang ◽  
Xiang Dong Gao
Keyword(s):  
Laser Welding ◽  
High Power ◽  
Molten Pool ◽  
Welding Process ◽  
Histogram Equalization ◽  
Welding Quality ◽  
Infrared Images ◽  
Traditional Methods ◽  
Disk Laser ◽  
Laser Welding Process

Configuration of a molten pool is related to the laser welding quality. Analyzing the configuration of a molten pool is important to monitor the laser welding process. This paper proposes a method of segmentation of a molten pool and its shadow during high power disk laser welding, consequently provides the groundwork for reconstruction of the molten pool and analysis of welding quality. Subsection linear stretching histogram equalization was applied to enhance the contrast of the original images firstly, and then edge detection was used to highlight the edges. After that we used the morphology filtering method to produce the segmentation mask, and then combined the mask with the original images to get the final segmentation results. Also, the proposed method was compared with other traditional methods. The experimental results showed that our method not only could give better segmentation results and process large quantities images automatically, but also overcame the less-segmentation problems of traditional methods.

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