Energy efficient laser beam welding of metals with a ultra-high brightness direct-diode laser system

Laukart A, Dobler M, Kohl S, Fritsche H, Grohe A, Kruschke B, Schmidt M (2015)

Publication Language: English

Publication Type: Book chapter / Article in edited volumes

Publication year: 2015

Edited Volumes: Energy Efficiency in Strategy of Sustainable Production

URI: http://www.scientific.net/AMM.805.162

DOI: 10.4028/www.scientific.net/AMM.805.162

Abstract

The rising level of automation in the automotive industry also involves the use of more and
more machines and with that an increase in power consumption. This requires the employment of more efficient production processes with higher efficiency. Laser beam welding offers the opportunity to substitute conventional laser sources like solid state lasers with ultra-high brightness direct-diode laser systems which have the advantage of less power consumption at a comparable beam quality. However, the absorption of laser radiation on metallic surfaces depends on the wavelength, thus the effect of the direct-diode laser wavelength on the welding process has to be investigated. In our research the effect
of the laser wavelength on energy efficiency was studied by means of numerical simulations. Furthermore, experimental investigations were carried out to validate the numerical solutions. Different aluminum alloys and steel materials which are used in the automotive environment were investigated within the experiments. Due to the current lack of direct-diode laser systems with a laser power comparable to conventional laser systems, numerical simulations were also used to analyze these future systems. Thus we were able to assess the increase of efficiency in laser beam welding which will be achievable with future high-power direct-diode laser systems.

Authors with CRIS profile

Additional Organisation(s)

Involved external institutions

DirectPhotonics Industries GmbH Germany (DE)

How to cite

APA:

Laukart, A., Dobler, M., Kohl, S., Fritsche, H., Grohe, A., Kruschke, B., & Schmidt, M. (2015). Energy efficient laser beam welding of metals with a ultra-high brightness direct-diode laser system. In Energy Efficiency in Strategy of Sustainable Production..

MLA:

Laukart, Artur, et al. "Energy efficient laser beam welding of metals with a ultra-high brightness direct-diode laser system." Energy Efficiency in Strategy of Sustainable Production. 2015.

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