Laser welding of Al-Si coated hot stamping steel

Kim, Cheol-Hee; Kang, Minjung; Park, Y.D.

doi:10.1016/j.proeng.2011.04.368

Cited by 109 publications

(53 citation statements)

References 7 publications

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“…Additionally, high-strength steels show a higher resistance to deformation in crash situations which improves the quality of the components [1,2].…”

Section: Pressure-hardened Steels For Car Bodiesmentioning

confidence: 99%

“…Laser beam welding is especially used for the joining of higher strength steels. However, the supreme qualities of these steels are still reduced locally through this welding method [2]. As a result, innovative and application-specific solutions have to be developed which limit the decrease in quality and can be adapted to the specific needs of the component's design.…”

Section: Pressure-hardened Steels For Car Bodiesmentioning

confidence: 99%

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Influence on the microstructure of laser beam welds of high-strength steels

Völkers

Somonov

Böhm

et al. 2017

Lightweight des worldw

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“…Additionally, high-strength steels show a higher resistance to deformation in crash situations which improves the quality of the components [1,2].…”

Section: Pressure-hardened Steels For Car Bodiesmentioning

confidence: 99%

Section: Pressure-hardened Steels For Car Bodiesmentioning

confidence: 99%

Influence on the microstructure of laser beam welds of high-strength steels

Völkers

Somonov

Böhm

et al. 2017

Lightweight des worldw

View full text Add to dashboard Cite

“…The resulting steel has a tensile strength greater than 1.5 GPa, but the heat-affected zone (HAZ) near the welds tends to be softened during welding due to the transfer of heat. Laser welding, a high energy density process, is considered an effective welding process that reduces HAZ softening, and several studies have reported its implementation after HPF processing (Ganger et al, 2009;Kim et al, 2010Kim et al, , 2011Kang and Kim, 2011;Kang et al, 2012). Introducing laser welding prior to the HPF process is also a topic of importance to tailor-welded blanks (TWBs) in that it reduces the weight and enhances the crashworthiness of TWBs.…”

Section: Introductionmentioning

confidence: 99%

Laser tailor-welded blanks for hot-press-forming steel with arc pretreatment

Kang

Kim

Bae

2015

Int.J Automot. Technol.

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Tailor-welded blanks (TWBs) are made of sheets with various strengths or thicknesses that ensure increased material strength without significantly increasing the weight. In this study, Al-Si-coated hot-press-forming steel sheets were subjected to laser butt welding for making TWBs. After laser welding, the welded blanks were heated and subsequently quenched to simulate a thermal cycle in the hot-press-forming process, and the properties of the welded joints were examined. Arc pretreatment was applied before laser welding, and its influence on the mechanical and metallurgical properties of the welds was analysed.

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“…Investigations on laser beam welding of presshardened steel have been carried out by Kim et al (2011). Analyses of weld seams show a negative influence of the AlSi coating which is applied on the 22MnB5 for oxidation prevention during presshardening.…”

Section: Introductionmentioning

confidence: 99%

Gap Bridging Ability in Laser GMA Hybrid Welding of Thin 22MnB5 Sheets

et al. 2014

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In this paper, laser GMA hybrid welding of thin ultra-high-strength steel sheets (22MnB5) is investigated. A single-mode laser beam oscillating transversal to the welding direction is used in order to minimize the heat input during the process. The sheets have a thickness of 1.5 mm each and are fixed in overlap configuration. The gap between the sheets was 0.8 mm during experiments in order to simulate typical gap width in industrial manufacturing processes. It is shown that a stable weld seam has been achieved for this gap width in case of a welding speed of 6 m/min. The gap bridging ability is caused by the interaction of the arc and the laser beam process. The laser beam process produces deeper penetration in the bottom sheet. Thus, the arc is stabilized by the laser beam.

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Laser welding of Al-Si coated hot stamping steel

Cited by 109 publications

References 7 publications

Influence on the microstructure of laser beam welds of high-strength steels

Influence on the microstructure of laser beam welds of high-strength steels

Laser tailor-welded blanks for hot-press-forming steel with arc pretreatment

Gap Bridging Ability in Laser GMA Hybrid Welding of Thin 22MnB5 Sheets

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