Investigation of the thermo-mechanical properties of hot stamping steels

Merklein, Marion; Lechler, J.

doi:10.1016/j.jmatprotec.2006.03.233

Cited by 331 publications

(190 citation statements)

References 6 publications

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“…M. Suehiro 3) and M. Merklein, et al 4) investigated characteristics of phase transformation and mechanical properties on USIBOR 1500 and 22MnB5 for hot press forming. However, those studies only focused on physical properties and formability of hot press forming.…”

Section: Introductionmentioning

confidence: 99%

Microstructural Evolution and Mechanical Properties of Resistance Spot Welded Ultra High Strength Steel Containing Boron

et al. 2011

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Resistance spot welding has been performed in order to investigate the weld characteristics of boron-containing steel. With heat input increasing, the nugget width increased, which showed a direct proportion to shear tension strength. After welding process, the microstructure of the steels, mainly consisting of martensite in base material, was transformed to ferrite and tempered martensite in HAZ region, while weld zone is chiefly composed of martensite phase due to rapid quenching. The hardness was measured as about 550 Hv at weld zone, and 320 Hv in the region of heat affected zone in spite of 550 Hv of base material. It is deduced that the softening behavior occurred because heat input of welding caused phase transformation of martensite into tempered martensite and ferrite.

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Section: Introductionmentioning

confidence: 99%

Microstructural Evolution and Mechanical Properties of Resistance Spot Welded Ultra High Strength Steel Containing Boron

et al. 2011

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“…The hardening and strengthening mechanisms for boron steel are strongly associated with heat treatment and bake hardening that allows to obtain an almost full martensite structure, which provide the highest strength properties. [1] Parts made from boron steels as well as from other types of advanced high-strength steels have some limitations during the production and restoration operations, since the applying of the colossal strength is required for forming parts made from this steel or restoration these parts after their deformation. However, this problem is solved by use of the correct sequence, and precision control of forming and heat treatment.…”

Section: Introductionmentioning

confidence: 99%

Evolution of mechanical properties of boron/manganese 22MnB5 steel under magnetic pulse influences

Falaleev

Meshkov

Ветрогон

et al. 2016

IOP Conf. Ser.: Mater. Sci. Eng.

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“…Bariani et al [5] examined the improvement of formability by hot stamping. Merklein et al [6] observed deformation behaviour of a quenchable steel sheet in hot stamping.…”

Section: Introductionmentioning

confidence: 99%

Hot semi-punching and cold scrap removing processes for hot stamping of ultra-high strength steel parts

2015

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-Hot semi-punching and cold scrap removing processes for hot stamping of ultra-high strength steel parts were developed to eliminate laser cutting having low productivity after hot stamping. A quenchable steel sheet is semi-punched without separation of punching scraps during hot stamping, and subsequently, the scraps are removed from the hot-stamped part at room temperature. For hot semi-punching, additional channels for taking the punching scraps out of dies are not required. Minimum remainder without separation of punching scraps and no clearance between the die and punch were optimal for the hot semi-punching process. The hot punching and cold removing loads of the quenched sheet were considerably smaller than the cold punching load, the quality of the hole edge was high and the delayed fracture around the sheared edge was prevented. Hot semi-punching and cold scrap removal were applied to a hot hat-shaped bending process.

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Investigation of the thermo-mechanical properties of hot stamping steels

Cited by 331 publications

References 6 publications

Microstructural Evolution and Mechanical Properties of Resistance Spot Welded Ultra High Strength Steel Containing Boron

Microstructural Evolution and Mechanical Properties of Resistance Spot Welded Ultra High Strength Steel Containing Boron

Evolution of mechanical properties of boron/manganese 22MnB5 steel under magnetic pulse influences

Hot semi-punching and cold scrap removing processes for hot stamping of ultra-high strength steel parts

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