Laser welding of fully austenitic twinning induced plasticity (twip) steels

Behm, Velten; Otto, Manuel; Höfemann, Matthias; Huinink, Stefan; Springer, André; Kaierle, Stefan

doi:10.2351/1.5062943

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Cited by 4 publications

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“…This kind of laser source can be used for several processes in the field of laser material processing such as e.g. high power welding processes [22,23,236] and laser-arc hybrid welding processes [131,233,234]. The high beam quality described by a small beam parameter product (BPP ~ 2 mm•mrad for TruDisk 2000 with an output power of 2 kW [265]), allows for the usage of an optical waveguide with a minimal diameter of 50 µm and thus a beam focus diameter on the work piece in the same size.…”

Section: From Co2 To Solid Statementioning

confidence: 99%

Advances in macro-scale laser processing

Schmidt

Zäh

et al. 2018

CIRP Annals

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Section: From Co2 To Solid Statementioning

confidence: 99%

Advances in macro-scale laser processing

Schmidt

Zäh

et al. 2018

CIRP Annals

View full text Add to dashboard Cite

Investigations on Laser Beam Welding Dissimilar Material Combinations of Austenitic High Manganese (FeMn) and Ferrite Steels

Behm¹,

Höfemann²,

Hatscher³

et al. 2014

Physics Procedia

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For the past few years the customer's demand for more fuel efficient and at the same time safer vehicles has steadily increased. Consequently, light weight design has become one of the main interests in engineering. With regard to sheet metal components, a new class of high manganese steels, based on the TWIP (twinning induced plasticity) effect, provides the opportunity of shaping light weight designed thin and complex sheet metal geometries with advanced crash performance. In terms of weldability, due to their thermo-physical properties (high content of C, Mn, Al, Si), FeMn steels have to be handled differently in comparison to conventional steel grades. Particularly dissimilar material combinations of FeMn and ferrite steels are in the center of interest for industrial applications. This study reveals that metallurgical properties of dissimilar welding seams can be influenced considerably by laser beam welding, resulting in a change of the mechanical properties of the seam which is practicable without using filler material as described in (Flügge et al., 2011).

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