Abstract: | |
Due to the enormous potential of weight saving, and the consequential reduction of pollutant emissions, the use of hybrid components made of steel and aluminum alloys is increasing steadily, especially concerning automotive lightweight construction. However, thermal joining of steel and aluminum is still being researched, due to a limited solubility of the binary system of iron and aluminum causing the formation of hard and brittle intermetallic phases, which decrease the strength and the formability of the dissimilar seam. The presented results show the investigation of laser beam welding for joining different dissimilar hybrid components of the steel materials HX220LAD+Z100, 22MnB5+AS150 and 1.4301, as well as the aluminum alloy AA6016-T4 as a lap joint. Among other things, the influences of the energy per unit length, the material grade, the sheet thickness t, the weld type (lap weld, fillet weld) and the arrangement of the base materials in a lap joint (aluminum-sided irradiation, steel-sided irradiation) on the achievable strengths are analyzed. The characterization of the dissimilar joints includes tensile shear tests and metallographic analyses, depending on the energy per unit length.
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License of this version: | CC BY-NC-ND 4.0 Unported - https://creativecommons.org/licenses/by-nc-nd/4.0/ |
Publication type: | Article |
Publishing status: | publishedVersion |
Publication date: | 2016 |
Keywords english: | automotive lightweight construction, dissimilar joints, intermetallic phases, laser beam welding, steel-aluminum, Aluminum, Aluminum alloys, Characterization, Hybrid materials, Irradiation, Joining, Joints (structural components), Laser beam welding, Laser beams, Metallography, Welding, Welds, Aluminum alloy AA6016, Dissimilar joints, Hybrid component, Intermetallic phasis, Light-weight constructions, Metallographic analysis, Pollutant emission, Tensile shear test, Alloy steel |
DDC: | 530 | Physik |
Controlled keywords(GND): | Konferenzschrift |
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