Simulation of dendrite growth in the laser welding pool of aluminum alloy 2024 under transient conditions

2017 ◽  
Vol 246 ◽  
pp. 22-29 ◽  
Author(s):  
Lei Wang ◽  
Yanhong Wei ◽  
Xiaohong Zhan ◽  
Fengyi Yu ◽  
Xiyong Cao ◽  
...  
Keyword(s):  
Aluminum Alloy ◽  
Laser Welding ◽  
Dendrite Growth ◽  
Transient Conditions ◽  
Welding Pool ◽  
Aluminum Alloy 2024

Investigation on Porosity Content in 2024 Aluminum Alloy Welding by Yb:YAG Disk Laser

2011 ◽  
Vol 383-390 ◽  
pp. 6265-6269 ◽  
Author(s):  
V. Alfieri ◽  
F. Cardaropoli ◽  
F. Caiazzo ◽  
V. Sergi
Keyword(s):  
Aluminum Alloy ◽  
Laser Welding ◽  
Beam Quality ◽  
Welding Process ◽  
Porosity Formation ◽  
2024 Aluminum Alloy ◽  
Disk Laser ◽  
Aluminum Alloy 2024 ◽  
Slab Lasers

Aluminum alloy 2024 is extensively used in automotive and aerospace industries, but its application is limited due to the susceptibility to generate porosity during the welding process. Nevertheless, benefits from laser welding are clearly demonstrated. In addition, the use of a disk laser allows to obtain significant reduction in focus diameter and increased beam quality compared to traditional rod or slab lasers. The aim of the work is to discuss porosity formation as influenced by the thermal input provided, so bead-on-plate specimens in different conditions have been prepared. Porosity content is examined in relation to the fused zone extent and discussed considering interaction between laser and material. Higher thermal inputs are beneficial in full penetrative welds.

Laser absorption in high-power fiber laser welding of stainless steel and aluminum alloy

2008 ◽  
Author(s):  
Naoyuki Matsumoto ◽  
Yousuke Kawahito ◽  
Masami Mizutani ◽  
Seiji Katayama
Keyword(s):  
Stainless Steel ◽  
Aluminum Alloy ◽  
Laser Welding ◽  
Fiber Laser ◽  
High Power ◽  
Fiber Laser Welding ◽  
Laser Absorption

Peculiarities of AD33 aluminum alloy hand laser welding

2020 ◽  
Vol 2020 (12) ◽  
pp. 13-17
Author(s):  
Nikolay Proskuryakov ◽  
Uliana Putilova ◽  
Rasul Mamadaliev ◽  
Oleg Teploukhov
Keyword(s):  
Aluminum Alloy ◽  
Laser Beam ◽  
Laser Welding ◽  
Welded Joint ◽  
Comparative Investigation ◽  
Micro Structure ◽  
Joint Quality ◽  
Beam Motion

The comparative investigation results of AD33 aluminum alloy welded joint quality dependence upon changes in a laser beam motion rate for conditions of hand and automatic laser welding are shown. A micro-structure of a welded joint at the hand and automatic laser welding of the AD33 alloy is investigated.

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