Multi-sensing signals diagnosis and CNN-based detection of porosity defect during Al alloys laser welding

2022 ◽  
Vol 62 ◽  
pp. 334-346
Author(s):  
Deyuan Ma ◽  
Ping Jiang ◽  
Leshi Shu ◽  
Shaoning Geng
Keyword(s):  
Laser Welding ◽  
Al Alloys

Application of Laser Remote Welding to an Aluminum Automotive Part

2010 ◽  
Vol 654-656 ◽  
pp. 966-969
Author(s):  
Cheol Hee Kim ◽  
Won Ho Choi ◽  
Ki Young Park
Keyword(s):  
Laser Welding ◽  
Automotive Industry ◽  
Spot Welding ◽  
Thin Disk ◽  
Al Alloys ◽  
Thermal Distortion ◽  
Focal Distance ◽  
High Brightness ◽  
Automotive Part ◽  
Remote Welding

Aluminum alloys are extensively used in the automotive industry in response to increasing requirements for weight reduction in car body architecture. Laser welding of Al alloys has many advantages such as low heat input, narrow heat affected zone, minimal thermal distortion and flexibility. Recently, the development of high brightness lasers - thin disk lasers and fiber lasers enable long focal distance welding so that laser remote welding with scanning mirrors can be used in laser welding of Al alloys. In this study, laser remote welding was implemented to a heat shield part of an automobile by utilizing a 4kW disk laser and a 2-axis scanner. By replacing conventional resistance spot welding, the weld flange length could be reduced from 15mm to 8mm and a cycle time for each welding point could also be reduced from 3.5s to 0.6s.

Softening Phenomenon of Heat-Affected Zone in Laser Welding of 6082 Al Alloys with Filler Wire

2018 ◽  
Vol 45 (11) ◽  
pp. 1102007 ◽  
Author(s):  
李福泉 Li Fuquan ◽  
冯时 Feng Shi ◽  
李明伟 Li Mingwei ◽  
朱云皓 Zhu Yunhao
Keyword(s):  
Laser Welding ◽  
Heat Affected Zone ◽  
Al Alloys ◽  
Filler Wire

Study on pulsed laser welding of AZ31B Mg and 6061 Al alloys using Cu interlayer

2019 ◽  
Vol 6 (4) ◽  
pp. 046553
Author(s):  
Jun Dai ◽  
Zheng Liu ◽  
Banglong Yu ◽  
Li Yang ◽  
Yaocheng Zhang ◽  
...  
Keyword(s):  
Laser Welding ◽  
Pulsed Laser ◽  
Al Alloys ◽  
Pulsed Laser Welding ◽  
Cu Interlayer

Influence of CO2 laser welding parameters on the microstructure, metallurgy, and mechanical properties of Mg-Al alloys

2012 ◽  
Vol 19 (12) ◽  
pp. 1114-1120 ◽  
Author(s):  
Chun-ming Lin ◽  
Hsien-lung Tsai ◽  
Chang-lin Lee ◽  
Di-shiang Chou ◽  
Sun-fen Lee ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Laser Welding ◽  
Co2 Laser ◽  
Al Alloys ◽  
Welding Parameters

A Quality Evaluation Method for Laser Welding of Al Alloys Through Neural Networks

CIRP Annals ◽  
2000 ◽  
Vol 49 (1) ◽  
pp. 131-134 ◽  
Author(s):  
L.M. Galantucci ◽  
L. Tricarico ◽  
R. Spina
Keyword(s):  
Neural Networks ◽  
Laser Welding ◽  
Quality Evaluation ◽  
Evaluation Method ◽  
Al Alloys

Reduced hot cracking susceptibility by controlling the fusion ratio in laser welding of dissimilar Al alloys joints

2015 ◽  
Vol 30 (7) ◽  
pp. 993-1001 ◽  
Author(s):  
Yulong Zhang ◽  
Fenggui Lu ◽  
Hui-Ping Wang ◽  
Xiaojie Wang ◽  
Haichao Cui ◽  
...  
Keyword(s):  
Laser Welding ◽  
Al Alloys ◽  
Hot Cracking ◽  
Image Position

Abstract

scholarly journals Development of Laser Welding Methods for Cold-Rolled Thin Foils of Ni3Al Alloys

2003 ◽  
Vol 67 (4) ◽  
pp. 185-188 ◽  
Author(s):  
Masashi Oikawa ◽  
Katsuhiro Minamida ◽  
Masahiko Demura ◽  
Kyousuke Kishida ◽  
Toshiyuki Hirano
Keyword(s):  
Laser Welding ◽  
Al Alloys ◽  
Thin Foils ◽  
Cold Rolled
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