Effect of material thickness and joint configuration on high power diode laser welding of steel

Antti Salminen, Anna Fellman, Veli Kujanpää

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

Abstract

Despite of the fact that high power diode laser (HPDL) suffers from lower beam quality in comparison to traditional welding laser, it is suitable for various welding tasks in area of thin sheet welding. The weakness caused by the beam quality can be in some cases turned into strength due to possibility to vary the form of heat input. Typically the applications of HPDL are in the range of thin sheet. At this moment there are some existing industrial applications in which diode laser is the most suitable laser. The HPDL welding process is usually performed as conduction limited welding process due to its beam quality. In this study the basic HPDL welding parameters and the effect of these parameters on the welding process and weld quality were examined. In addition, the effect of joint manufacture on process efficiency and weld quality were studied. The laser parameters tested were beam intensity, welding speed, incidence angle of laser beam and focal spot size. It was shown that the beam quality and laser power have a considerable effect on welding performance and efficiency together with the joint type and the joint manufacture. To some extend the higher the beam intensity is, the higher is the maximum welding speed, when other parameters are constant. The reliable welding parameters can be established for the welding of various industrial products.
Original languageEnglish
Title of host publicationICALEO 2004: 23rd International Congress on Laser Materials Processing and Laser Microfabrication
PublisherLaser Institute of America
Number of pages8
ISBN (Print)978-0-912035-77-2
DOIs
Publication statusPublished - 2004
MoE publication typeA4 Article in a conference publication
Event23rd International Congress on Applications of Lasers and Electro-Optics, ICALEO 2004 - San Francisco, United States
Duration: 4 Oct 20047 Oct 2004
Conference number: 23

Conference

Conference23rd International Congress on Applications of Lasers and Electro-Optics, ICALEO 2004
Abbreviated titleICALEO 2004
CountryUnited States
CitySan Francisco
Period4/10/047/10/04

Keywords

  • welding

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    Salminen, A., Fellman, A., & Kujanpää, V. (2004). Effect of material thickness and joint configuration on high power diode laser welding of steel. In ICALEO 2004: 23rd International Congress on Laser Materials Processing and Laser Microfabrication Laser Institute of America. https://doi.org/10.2351/1.5060200