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Tailored blanks

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LWB chassis applications

ArcelorMittal Tailored blanks has developed a dedicated a hybrid (Plasma-Laser) welding process for the Laser Welded Blanks chassis Applications.

This hybrid laser + plasma welding process shows better fatigue performance than a standard laser welding for such applications where fatigue load case are important.

This is due to:

  • Softer transition
  • Better homogeneity of the welded zone (thanks to slower cooling)
  • Softer surface : less sensitive to micro-defects