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Tailored performance for today and tomorrow.

Laser-welded, tailored-shaped, and patched blanks engineered for lighter, safer and more sustainable vehicles. ArcelorMittal Tailored Blanks offers the right solutions — Shaped, Patched, and Laser-Welded Blanks — that meet the automotive customer’s needs. Each tailored blank is engineered for a specific purpose, from optimal nesting to local reinforcement and multi-steel grade integration, helping carmakers achieve sustainable performance without compromise.

Our smarter steel solutions

Shaped blanks (unwelded)

A tailored-shaped blank is mechanically cut or laser-cut to closely match the final part geometry (near-net shape), optimising material usage and manufacturing efficiency.

  • Design and project management of blanking dies
  • Optimised material utilisation
  • Complex shapes with tight tolerances

Patched blanks

A patch is a piece of steel welded directly onto a larger blank before stamping. Patched blanks provide local reinforcement or stiffening, helping automakers meet performance requirements without compromise.

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Laser‑welded blanks

A laser‑welded blank (LWB) is an engineered steel sheet created by laser‑joining different grades or thicknesses of steel into one optimized component.
This advanced process places high‑strength material where crash protection is required and lighter, more formable steel where weight savings or shaping flexibility matter. The result is a stronger, lighter, and more efficient automotive part, produced with reduced material usage and minimal scrap.

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ArcelorMittal Multi Part Integration (MPI) is redefining automotive body design and manufacturing. By consolidating multiple components into large integrated parts, MPI reduces complexity, accelerates assembly and lowers costs without compromising safety or performance.

The technology combines the proven benefits of press-hardened steel with ArcelorMittal’s unique partial ablation process, developed through more than 20 years of laser-welding expertise. The result is weld strength equivalent to the base material, delivering outstanding crash performance and design flexibility.

Validated through dynamic testing, MPI helps accelerate vehicle development while ensuring the highest safety standards.

Discover how MPI enables lighter, safer and more cost-effective vehicle structures.

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Which solution to use when

Best for
Key advantages
Typical use cases
Shaped blanks
Optimize material utilization, higher productivity, and complex shapes
Near-net shape, no dies, lower scrap
Wheelhouses, body sides with flanging, aesthetic panels
Patched blanks
Local reinforcement, crash targets
Energy absorption, fewer tools & steps
A/B pillars, rails, anti-intrusion zones
Laser-welded blanks
Cost, design and performance optimization
Tailor grade & thickness for the right requirements
Rockers, floors, roof rails, seat cross-members, Parts Integration
Multi-part integration
Simplification
Zero compromises
Door rings (inner/outer), double door rings (inner/outer), floor panels, H-frames, dash panels, front subframe/engine cradle.

Right steel for every function

Start with the function, assign the grade, then tailor thickness via LWB or patches to hit crash, mass and cost targets.

 

Crash zones (A/B pillars, rails):
Usibor® / Ductibor® + localized patches.

Stiffness & torsion (rockers, floor):
MartINsite® / Fortiform® via LWB.

Complex edges / early builds:
Tailored‑shaped blanks with laser‑cut edges.

Patched blanks

Patched blanks are ideal for reinforcing cars to meet crash test requirements, while reducing the number of stamping tools and assembly steps.

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3D car configurator

Expllore our best-in-class solutions for any vehicle, including body-in-white/MPI, chassis and battery pack.

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Laser‑welded blanks

ArcelorMittal’s laser-welding technology joins multiple grades and thicknesses into a single, optimized blank—concentrating strength where it’s most needed for crash resistance, and reducing thickness and weight elsewhere. Using our full range of Advanced High Strength Steels (AHSS) such as Usibor®, Ductibor®, Fortiform®, and MartINsite®, Tailored Blanks combine performance, formability, and cost efficiency in one solution. The result: lighter parts, lower CO₂ emissions, and fewer assemblies—delivering higher value at lower cost, without compromise on safety or design freedom.  

The separate grades are laser-welded together to create a single sheet of steel which has the best grade in the best place for strength and deformation. Each sheet can be hot- or cold-stamped to give the part its final shape.   

The result is a "tailor-made" solution with significant advantages for the customer. Today, LWBs are commonly used in automotive construction, particularly for the body-in-white and closures of a car.

Ready to tailor your next project?

Connect with our experts to find the best solution for your applications - from lightweighting strategies to process optimization

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