Laser beam welding of aluminum alloys with diode pumped Nd:YAG lasers

2001 ◽  
Author(s):  
M. Grupp ◽  
T. Seefeld ◽  
G. Sepold
Keyword(s):  
Aluminum Alloys ◽  
Laser Beam ◽  
Laser Beam Welding ◽  
Nd:Yag Lasers ◽  
Diode Pumped

Experimental Study on Laser Beam Sealing for Increased Format-Flexibility of Packaging Machines

2017 ◽  
Vol 871 ◽  
pp. 199-207
Author(s):  
Georg Götz ◽  
Martin Brugger ◽  
Nicholas Amthor ◽  
Christoph Richter ◽  
Gunther Reinhart
Keyword(s):  
Experimental Study ◽  
Energy Efficiency ◽  
Laser Beam ◽  
Laser Beam Welding ◽  
Experimental Studies ◽  
Surface Structures ◽  
Fibre Laser ◽  
Key Factors ◽  
Processing Technologies ◽  
Diode Pumped

Resource and energy efficiency as well as format-flexibility are important key-factors for users and manufacturers of packaging machines. These key-factors could be enhanced together due to a generally positive interconnection. For example, increased format-flexibility reduces the stand-by phases and improves the overall equipment effectiveness (OEE). One way to achieve these objectives is using more flexible processing technologies. Laser beam welding is a widespread technology in many industrial branches. Use of this technology in packaging machines for sealing is unknown and therefore the potential of this technology for increasing format-flexibility as well as resource and energy efficiency is not yet exploited. The focus of this paper is the experimental investigation of laser beam sealing with a 2 μm diode-pumped thulium fibre laser. The results of various experimental studies will be presented. The achievable sealed-seam strengths with different laser beam outputs are demonstrated. Furthermore, reasons for different peeling conditions of these sealing seams are investigated. Different materials and surface structures of the required workpiece carrier are experimentally evaluated.

scholarly journals Benefits of very high feed rates for laser beam welding of AlMgSi aluminum alloys

2018 ◽  
Vol 30 (1) ◽  
pp. 012015 ◽  
Author(s):  
Christian Hagenlocher ◽  
Florian Fetzer ◽  
Rudolf Weber ◽  
Thomas Graf
Keyword(s):  
Aluminum Alloys ◽  
Laser Beam ◽  
Laser Beam Welding ◽  
High Feed ◽  
Very High

scholarly journals Laser Beam Welding of Aluminum Alloys Under the Influence of an Electromagnetic Field

2013 ◽  
Vol 41 ◽  
pp. 4-11 ◽  
Author(s):  
A. Schneider ◽  
V. Avilov ◽  
A. Gumenyuk ◽  
M. Rethmeier
Keyword(s):  
Electromagnetic Field ◽  
Aluminum Alloys ◽  
Laser Beam ◽  
Laser Beam Welding

LBW of Similar and Dissimilar Skin-Stringer Joints Part I: Process Optimization and Mechanical Characterization

2008 ◽  
Vol 38 ◽  
pp. 306-319 ◽  
Author(s):  
A. Prisco ◽  
F. Acerra ◽  
Antonio Squillace ◽  
G. Giorleo ◽  
C. Pirozzi ◽  
...  
Keyword(s):  
Chemical Composition ◽  
Structural Analysis ◽  
Aluminum Alloys ◽  
Laser Beam ◽  
Process Optimization ◽  
Mechanical Characterization ◽  
Laser Beam Welding ◽  
Filler Wire ◽  
Parent Materials

Laser beam welding of light alloys has always represented a big challenge for both designers and technologists due to the large number of process parameters to take into account and the variable responses of the different materials to be welded. In this paper the results of experimental research on laser beam welds of innovative heat treatable aluminum alloys is reported. The well known T geometry (a stringer welded to a skin) has been considered. Two different skins have been analyzed: AA 2139 and AA 6156, both in form of rolled sheets. Two different stringer have been analyzed: AA 2139 and PA 765, both in form of extruded parts. AA 4047 has been used as filler wire. In the first part of the paper, all the steps leading to the realization of sound welds will be described. The criteria used in order to assess the soundness of a weld was the absence of defects, such as cracks or large pores, verified by means of NDE. In the second part of study, both micro structural analysis and mechanical characterization of welds will be described and discussed. Conclusions will demonstrate the importance of the influence of chemical composition of the parts, above all stringer. The performance of the best welds, however, were very close to those of parent materials.

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