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Laser beam welding of heat‐treatable steel is challenging due to martensitic hardening. Before welding local laser pre‐tempering of the welding zone with an oscillating defocused laser beam is investigated. Therefore the beam was guided over the surface using a 3D scanner optics. Thus the cooling rates and the resulting martensitic structure within the
F. Steidle +4 more
wiley +1 more source
The widely observed microcracking of ZnFe‐coated press hardening steels (e.g., 22MnB5) can be minimized with the help of the improved hardenability of steel (e.g., 22MnMoB), which enables hot forming at exceptionally low hot forming temperatures of 550 °C or below. The cracking behavior can be connected with the metal‐induced embrittlement (MIE), which
Henri Järvinen +6 more
wiley +1 more source
This paper discusses the successful welding of AZ31 Mg alloy to 22MnB5 high-strength steel using pinless friction stir welding (P-FSSW) to join dissimilar metals and reduce vehicle weight while maintaining strength and stiffness. P-FSSW eliminates fusion
Taotao Li +8 more
doaj +1 more source
Bending Behavior of Zinc‐Coated Hot Stamping Steels
The bending behavior of zinc‐coated martensitic steels produced via two different cooling routes, namely, with and without precooling, is investigated. Precooling leads to the formation of individual ferrite grains within the martensitic matrix in the near‐surface regions.
Christina Hofer +6 more
wiley +1 more source
The 22MnB5-galvannealed steel is extensively used in the hot stamping process to produce car anti-collision structure parts. Furthermore, the resistance spot welding (RSW) is an important process in the automobile industry, especially in body ...
Robson Ribeiro +4 more
doaj +1 more source
22MnB5 boron steel has become one of the main choices for lightweight vehicles due to its extremely high mechanical properties. To explore the intrinsic relationship between the thermoforming process and thermo-mechanical behavior for constitutive ...
Qian Zhou, Pengcheng Guo, Feng Qin
doaj +1 more source
Multiobjective Optimization for Forming Process Parameters of Ultrahigh Strength Steel BR1500HS
This paper focuses on obtaining the optimum process parameters and improving the mechanical properties of ultrahigh strength steel BR1500S. Many experimental data are obtained, and then response surface methodology (RSM) is used to obtain the optimum parameters. Combining the experimental data with RSM, some conclusions are summarized. When the cooling
Xin Shang +3 more
wiley +1 more source
A feasibility study on warm forming of an as-quenched 22MnB5 boron steel
In this paper, the feasibility of a newly proposed forming method, being the warm forming of as-quenched 22MnB5 boron steels, was studied through a series of proof of concept experiments.
M. Ganapathy +3 more
doaj +1 more source
The effect of quenching and defects size on the HCF behaviour of Boron steel [PDF]
This work investigates the effect of natural and artificial surface defects and quenching on the fatigue strength of a Boron steel (22MnB5). A vast experimental campaign has been undertaken to study the high cycle fatigue behaviour and more specifically ...
ABRIVARD, Benjamin +4 more
core +6 more sources
Determining Material Data for Welding Simulation of Presshardened Steel
In automotive body-in-white production, presshardened 22MnB5 steel is the most widely used ultra-high-strength steel grade. Welding is the most important faying technique for this steel type, as other faying technologies often cannot deliver the same ...
Jonny Kaars, Peter Mayr, Kurt Koppe
doaj +1 more source

