Application of Laser Texturization to Increase the Depth of AA5083 Welds

2012 ◽  
Vol 498 ◽  
pp. 37-42 ◽  
Author(s):  
J.M. Sánchez-Amaya ◽  
Z. Boukha ◽  
L. González-Rovira ◽  
M.R. Amaya-Vázquez ◽  
Francisco Javier Botana
Keyword(s):  
Thermal Conductivity ◽  
Laser Beam ◽  
Aluminium Alloys ◽  
Laser Beam Welding ◽  
High Thermal Conductivity ◽  
Weld Penetration ◽  
Present Contribution ◽  
Laser Absorption ◽  
Low Viscosity ◽  
First Time

The application of laser beam welding to aluminium alloys has some complications, mainly due to their high reflectivity, high thermal conductivity and low viscosity. In order to increase the laser absorption of aluminium alloys, some surface treatments has been applied in the literature, such as the application of dark coatings or sandblasting. However, these conventional superficial treatments have some drawbacks, such as the low weld penetration, the possibility to undergo magnesium evaporation and the impossibility to control and/or change the superficial properties of the treated samples. In the present contribution, laser texturization treatments have been performed with a fibber laser for the first time on aluminium alloys to increase their absorption and weld penetration. The texturised samples leaded to deeper bead welds than the reference sandblasted samples.

Flexible laser beam welding of aluminium alloys for innovative light constructions

1997 ◽  
Author(s):  
K. Behler ◽  
A. Ehrhardt ◽  
W. Frohn ◽  
R. Poprawe ◽  
C. M. Sonsino ◽  
...  
Keyword(s):  
Laser Beam ◽  
Aluminium Alloys ◽  
Laser Beam Welding

Application of thermal modelling to laser beam welding of aluminium alloys

1998 ◽  
Vol 3 (5) ◽  
pp. 260-266 ◽  
Author(s):  
A. F. Norman ◽  
R. Ducharme ◽  
A. Mackwood ◽  
P. Kapadia ◽  
P. B. Prangnell
Keyword(s):  
Laser Beam ◽  
Aluminium Alloys ◽  
Laser Beam Welding ◽  
Thermal Modelling

Analysis of the Laser Weldability under Conduction Regime of 2024, 5083, 6082 and 7075 Aluminium Alloys

2012 ◽  
Vol 713 ◽  
pp. 7-12 ◽  
Author(s):  
J.M. Sánchez-Amaya ◽  
Z. Boukha ◽  
M.R. Amaya-Vázquez ◽  
L. González-Rovira ◽  
Francisco Javier Botana
Keyword(s):  
Aluminium Alloys ◽  
Laser Beam Welding ◽  
Low Viscosity ◽  
High Production Rate ◽  
High Penetration ◽  
High Production ◽  
Localization Ability ◽  
High Flexibility ◽  
Melted Material ◽  
Power Diode

Laser beam welding (LBW) show clear advantages compared with other techniques, as the low heat input, the high localization ability, the high welding speed, the high flexibility, the high weld quality and the high production rate. However, its applicability to aluminium alloys is limited, as they generally have high reflectivity, high thermal conductivity and low viscosity. In the present study, the laser weldability of four aluminium alloys (2024, 5083, 6082 and 7075) under conduction regime is analysed. High penetration butt welds could be obtained with a High Power Diode Laser (HPDL) under conduction regime. The properties of the weld beads such as the microstructure and microhardness were analysed. A linear function between the input laser fluence and the volume of melted material was obtained for the four alloys.

A study of the shielding gas influence on the laser beam welding of AA5083 aluminium alloys by in-process spectroscopic investigation

2006 ◽  
Vol 44 (10) ◽  
pp. 1039-1051 ◽  
Author(s):  
Teresa Sibillano ◽  
Antonio Ancona ◽  
Vincenzo Berardi ◽  
Emanuela Schingaro ◽  
Giuseppe Basile ◽  
...  
Keyword(s):  
Laser Beam ◽  
Spectroscopic Investigation ◽  
Aluminium Alloys ◽  
Laser Beam Welding ◽  
Shielding Gas

scholarly journals Extension of the process limits in laser beam welding of thick-walled components using the Laser Multi-Pass Narrow-Gap welding (Laser-MPNG) on the example of the nickel-based material Alloy 617 occ

2021 ◽  
Author(s):  
Benjamin Kessler ◽  
Dirk Dittrich ◽  
Berndt Brenner ◽  
Jens Standfuss ◽  
Christoph Leyens
Keyword(s):  
Laser Beam ◽  
Low Cycle Fatigue ◽  
Laser Beam Welding ◽  
Welding Process ◽  
Industrial Applications ◽  
Fatigue Tests ◽  
Narrow Gap ◽  
Narrow Gap Welding ◽  
Alloy 617 ◽  
First Time

AbstractThe joining of thick-walled components using beam-based joining techniques is content of worldwide research and development activities, but has not yet been established in industry. State of the art to weld nickel super alloys is currently a TIG narrow-gap welding. The present paper is focusing on a new specific laser beam welding process, the so-called Laser Multi-Pass Narrow-Gap welding (Laser-MPNG). It first explains the process principle based on 2D beam oscillation, the use of fiber lasers and the multi-pass principle. The potential of the Laser-MPNG welding process is demonstrated using the technically significant nickel-based material Alloy 617 occ. As a result, it was possible for the first time to realize a weld with a wall thickness of 140 mm free of cracks or bonding defects. Promising results of creep and low-cycle fatigue tests are used to show the potential that Laser-MPNG welded joints would have for future industrial applications.

Sign in / Sign up

Export Citation Format

Share Document