Optimization on the spot!

voestalpine has mastered a variety of ways to manufacture
tailored-property parts

Crash performance and weight are optimized according to individual component requirements using a variety of different factors and adjustments.

Methods and technologies Individualization and optimization begin in the press-hardening process with the development and use of tailored blanks and heating that is perfectly adjusted to temperature and time cycles. Components are cooled and spot-heated during the press-hardening process and undergo a special heat treatment immediately following press-hardening. Most of these technologies can be used in both direct and indirect hot forming.

Possible TPP variants

Indirect hot forming with phs-ultraform®

  • Tailor-welded blank
  • Patch inside/patch outside
  • Tailor-heated
  • Tailor-tempered

for indirect hot forming with phs-ultraform®

  • Tailor-welded blank
  • Patch inside/patch outside
  • Tailor-tempered

Tailor-welded blanks The right material at the right place ensures the required hardness and optimized component weight. The tailor-welded blanks are made of different kinds of steels and feature a variety of sheet thicknesses. It is possible to make components that feature harder and softer zones as required. Sheet edge preparation is not necessary. Sheet thicknesses can range between 0.8 and 2.8 mm, and strengths between 490 and 2000 MPa.

Patch inside/patch outside The patches welded onto the blanks strengthen high-load areas, increase component stiffness and represent the simplest blanks in the
TPP family. The welded-on patches are usually
made of a phs material. However, other
steel materials can also be used.

Tailor-heated The zones to remain soft in a component are not heated to austenitizing temperature  during indirect hot forming. An absorption mass is applied to smaller zones, and the areas to be hardened in larger zones are heated with heating device focused on the specific area.

Tailor-tempered The component is once again heated in the furnace following hot forming. The additional heat treatment increases ductility and crash performance. Depending on the duration and temperature of the heat treatment, it is pssible to narrow the area of reduced strength to a range between 1000 and 1500 MPa. 

Your contact partner

Andreas Keller

T: +49.7171.972.577

E: andreas.keller@voestalpine.com

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