Press hardened steel based laser welded blanks: The ultimate tool for crashworthiness

Thanks to its superior mechanical properties after hot stamping, USIBOR 1500 P experiences a very rapid growth in anti-intrusion applications of automotive structures (bumpers, doors, bodies-in-white). As the blank is stamped at high temperature (typically between 600°C and 800°C) and then immediately quenched in the closed forming die, the very high strength level of 1500 MPa can be achieved without shape deviation or springback, and for very complex shapes. This performance cannot currently be matched by any other cold stamped material. This paper intends to give a short overview of the current status in application of USIBOR 1500 P, with a specific focus on the thermomechanical modelling of its stamping behaviour in finite element simulation. Current innovation trends with respect to the material itself, its processing and the opportunities it offers in terms of tailored mechanical properties will be presented and discussed.

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“…However, special care has to be taken for the laser welding of the pre-coated aluminized USIBOR 1500 P [15].…”

Section: Fields Of Innovationmentioning

confidence: 99%

Status and Innovation Trends in Hot Stamping of USIBOR 1500 P

Hein

Wilsius

2008

steel research international

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“…Potential steels normally include High Strength Low Alloy (HSLA) steels, Dual Phase (DP) steels, TWining Induced Plasticity (TWIP) steels, and TRansformation-Induced Plasticity (TRIP) steels [9]. Previous research on the counterpart to boron steel has been focused on the feasibility of HSLA steels [4,5,10] or Ductibor® 500P [3,11,12], which provided the absorbed energy (i.e., tensile strength × total elongation) of ~13 GPa.%. In these TWBs, the tailored properties mainly result from different phase transformation behaviors of two base steels.…”

Section: Introductionmentioning

confidence: 99%

One-step quenching and partitioning treatment of a tailor welded blank of boron and TRIP steels for automotive applications

et al. 2019

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Hochfester und leicht umformbarer Stahl für den Automobilbau

Ganzer

Albert

Schmidt

2009

Laser Technik Journal

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Gerade im Automobilbau stellt der Stoff‐, Fertigungs‐ und Konzeptleichtbau, nicht nur im Hinblick auf die CO2‐Debatte, ein wichtiges Thema dar. Gesucht werden unter anderem Materialien, die eine hohe Festigkeit erreichen, sich aber dennoch leicht umformen lassen. Eine Möglichkeit stellt der warmumformbare höchstfeste Mangan‐Bor‐Stahl 22MnB5 (1.5528) dar. Dieser Artikel präsentiert Ergebnisse zum Laserstrahlschweißen von Usibor 1500P und BTR 165 jeweils vor und nach der Warmumformung.

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Press hardened steel based laser welded blanks: The ultimate tool for crashworthiness

Cited by 5 publications

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Status and Innovation Trends in Hot Stamping of USIBOR 1500 P

Status and Innovation Trends in Hot Stamping of USIBOR 1500 P

One-step quenching and partitioning treatment of a tailor welded blank of boron and TRIP steels for automotive applications

Hochfester und leicht umformbarer Stahl für den Automobilbau

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