Original scientific paper

Change of ears creation of AHSS steels after heat treatment of zinc coating

E. Spišák ; Faculty of Mechanical Engineering, Technical University of Košice, Slovakia
J. Majerníková ; Faculty of Mechanical Engineering, Technical University of Košice, Slovakia
J. Slota ; Faculty of Mechanical Engineering, Technical University of Košice, Slovakia

Abstract

The article deals with the normal anisotropy, the earring evaluation of deep-drawing steels DC06, micro-alloyed steel H220 and steel with transformation induced plasticity TRIP RAK 40/70 and deals with the influence of annealing temperature to ears creation of H220 steel and TRIP RAK 40/70 steel. The evaluation of normal anisotropy has been made by tensile test on TIRA test 2300 according standards STN EN 10002-1+AC1 and STN 42 0321. The evaluation of earring degree has been carried out on the cups, which have been drawn on a hydraulic press Fritz Muller 100.

Keywords

multiphase steels; heat treatment; coefficient of normal anisotropy; degree of earing; earring; zinc coating

Hrčak ID:

122166

URI

https://hrcak.srce.hr/122166

Publication date:

1.10.2014.

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