Statistical modeling of laser welding of DP/TRIP steel sheets

Reisgen, Uwe; Schleser, Markus; Mokrov, Oleg; Ahmed, Essam

doi:10.1016/j.optlastec.2011.05.025

Cited by 36 publications

(15 citation statements)

References 10 publications

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“…Because of these advantages, combined blanks are widespread in the design of car body components and also improve their utility properties (e.g., stainless austenitic and ferritic steels for improving the corrosion resistance in the exhaust systems, the fuel tanks, etc.). According to the data of suppliers of materials for the automotive industry, their share in the structure of the car body should be increased in the coming years up to 30% [12,13].…”

Section: Introductionmentioning

confidence: 99%

The Influence of Laser Welding on the Mechanical Properties of Dual Phase and Trip Steels

Evin

Tomáš

2017

Metals

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Nowadays, a wide range of materials is used for car body structures in order to improve both the passengers' safety and fuel consumption. These are joined by laser welding and solid state fiber lasers being used more and more in present. The article is focused on the research of laser welding influence on the mechanical and deformation properties, microstructure and microhardness of advanced high-strength steels: high-strength low-alloyed steel HC340LA, dual phase steel HCT600X and multi-phase residual austenite steel RAK40/70. The proper welding parameters have been found based on weld quality evaluation. The specimens for tensile test with longitudinal laser weld were used to measure mechanical and deformation properties. Microstructure and microhardness of laser welds were evaluated in the base metal, heat affected zone and fusion zone. The higher values of strength and lower ones for deformation properties of laser-welded materials have been found for dual and multi-phase steel. The microhardness strongly depends on the carbon equivalent of steel. Deformation properties are more sensitive than strength properties to the change of microstructure in the fusion zone and heat affected zone.

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Section: Introductionmentioning

confidence: 99%

The Influence of Laser Welding on the Mechanical Properties of Dual Phase and Trip Steels

Evin

Tomáš

2017

Metals

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“…The joint produced by laser welding has sufficient strength -the crack of the specimen in the tensile test of the weld joint was not created in the weld interface area or thermally influenced area but on the side of the steel HCT600 ( Fig. 6) (Reisgen, 2012).…”

Section: Methodsmentioning

confidence: 99%

“…Tailor welded blanks (TWBs) offer an excellent means to meet these competing and seemingly contradictory demands. They are used for forming of parts with special strength, stiffness and operational deformation properties (Kinsey and Wu, 2011;Evin and Tomáš, 2012;Bílik et al, 2015;Fracz et al, 2014;Reisgen et al, 2012). With the use of materials with different stress-strain properties or different thicknesses we can achieve higher strength and stiffness while lower weight of the drawn parts or even the whole construction (Slota et al, 2014;Evin, 2013;Fracz et al, 2013;Bílik et al, 2010;Evin et al, 2015;Merklein et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

Deformation Properties of Tailor Welded Blank Made of Dual Phase Steels

Schrek

Švec

Gajdošová

2016

Acta Mechanica Et Automatica

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The paper is dedicated to forming and properties of passenger car´s B-pillar reinforcement drawn from simple blank and alternatively tailor-welded blank (TWB). Drawn part is characterised by a place with a large strain, while forming process simulation did not confirm the creation of crack using the TWB consisting of dual phase HCT980X instead of previous HCT600 steel. It is because HCT980X steel has higher strength and lower ductile properties. The analysis of properties of drawn parts is focused on the simulated crash test in Dynaform software. Obtained sizes of drawn forces in simulated frame of the drawn parts and their comparison proved the possibility of the replacement the 1.2 mm thick simple blank from HCT600 steel with the 1 mm thick TWB consisting of HCT600 and HCT980X steel. The changed thickness of the simple blank caused 20% weight saving while containing the same properties of the drawn part.

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“…26-32, DOI: 10.2478/stu-2013-0005 direction considering to the rolling direction and transposed by regress analyse into the functions (Fig.1) [3]. Table 1: Chemical composition of the tested steels [4] Chemical composition HCT600X 0,17% C; 0,8% Si; 2,2% Mn; 0,08% P; 0,015% S; 2,0% Al; 1,0% Cr+Mo; 0,15% Nb+Ti; 0,2%V; 0,0050% B…”

Section: Scientific Proceedings 2013 Faculty Of Mechanical Engineerimentioning

confidence: 99%

Influence of Material Property Combination and Its Compensation During Deep Drawing of Tailor-Welded Blanks

Činák¹,

Gajdošová²,

Schrek³

2013

Scientific Proceedings Faculty of Mechanical Engineering STU in Bratislava

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Statistical modeling of laser welding of DP/TRIP steel sheets

Cited by 36 publications

References 10 publications

The Influence of Laser Welding on the Mechanical Properties of Dual Phase and Trip Steels

The Influence of Laser Welding on the Mechanical Properties of Dual Phase and Trip Steels

Deformation Properties of Tailor Welded Blank Made of Dual Phase Steels

Influence of Material Property Combination and Its Compensation During Deep Drawing of Tailor-Welded Blanks

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