Process reliability and economic feasibility

voestalpine counts many years of serial production experience with phs-ultraform® with worldwide success in indirect hot forming.

In the indirect hot-forming process, the steel blanks made of
phs-ultraform® are formed and cut to final geometry using conventional cold-forming technologies. The cold-formed components are subsequently heated to approximately 900 oC. The hot components are positioned in a cooled tool for hardening and finalization of the component geometry (form hardening).

Process advantages in detail

  • Cold forming with minimum forming forces
  • Efficient cutting process in unhardened condition
  • Narrowest tolerances
  • Pre-formed components lead to minimum form-hardening tool wear
  • No danger of hydrogen absorption during annealing in the phs furnace, even at high dew point values in the furnace atmosphere
  • No hard cutting, thus cost advantages (no laser cutting) and high resistance to edge cracking (high level of hole expansion)
  • Short cycle times resulting from rapid cooling
  • Process stability and high component production through serial production
  • Final component geometry corresponds precisely to the form-hardening tool geometry (low degree of elastic recovery).
  • Very homogeneous mechanical properties throughout the component
Your contact partner

Andreas Keller

T: +49.7171.972.577


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