Dual beam Nd:YAG laser welding: influence of lubricants to lap joint welding of steel sheets

2006 ◽  
Author(s):  
M. Geiger ◽  
M. Merklein ◽  
A. Otto ◽  
A. Blankl
Keyword(s):  
Laser Welding ◽  
Nd:Yag Laser ◽  
Lap Joint ◽  
Steel Sheets ◽  
Dual Beam

scholarly journals Interfacial Characteristics of Dissimilar Ti6Al4V/AA6060 Lap Joint by Pulsed Nd:YAG Laser Welding

Metals ◽  
2019 ◽  
Vol 9 (1) ◽  
pp. 71 ◽  
Author(s):  
Xin Xue ◽  
António Pereira ◽  
Gabriela Vincze ◽  
Xinyong Wu ◽  
Juan Liao
Keyword(s):  
Laser Welding ◽  
Nd:Yag Laser ◽  
Laser Beam Welding ◽  
Welding Process ◽  
Mechanical Resistance ◽  
Lap Joint ◽  
Important Indicator ◽  
Pulsed Nd:Yag Laser ◽  
Pulsed Nd:Yag Laser Welding ◽  
Interfacial Characteristics

This paper focuses on the interfacial characteristics of dissimilar Ti6Al4V/AA6060 lap joint produced by pulsed Nd:YAG laser beam welding. The process-sensitivity analysis of welding-induced interface joining quality was performed by using the orthogonal design method. Microstructural tests such as scanning electron microscopy and energy dispersive X-ray spectroscopy were used to observe the interfacial characteristics. The mechanism of interfacial crack initiation, which is an important indicator of joint property and performance, was assessed and analyzed. The preferred propagation paths of welding cracks along the interfaces of different intermetallic layers with high dislocation density were analyzed and discussed in-depth. The results indicate that discontinuous potential phases in the micro-crack tip would mitigate the mechanical resistance or performance of the welded joint, while the continuous intermetallic layer can lead to a sound jointing performance under pulsed Nd:YAG laser welding process.

Effect of dual beam laser welding on microstructure–property relationships of hot-rolled complex phase steel sheets

2017 ◽  
Vol 17 (1) ◽  
pp. 145-153 ◽  
Author(s):  
Mateusz Morawiec ◽  
Maciej Różański ◽  
Adam Grajcar ◽  
Sebastian Stano
Keyword(s):  
Laser Welding ◽  
Complex Phase ◽  
Steel Sheets ◽  
Beam Laser ◽  
Dual Beam ◽  
Hot Rolled

Modeling of butt and lap joint laser welding of aluminum alloys and constructional steel sheets

2015 ◽  
pp. 27-32
Author(s):  
A. N. Shlegel ◽  
◽  
D. S. Gusev ◽  
A. B. Ivanchenko ◽  
N. N. Evtikheev ◽  
...  
Keyword(s):  
Aluminum Alloys ◽  
Laser Welding ◽  
Constructional Steel ◽  
Lap Joint ◽  
Steel Sheets
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