The microgeometry parameters of uncoated and zinc-coated cold rolled steel strips


  • Jana Bidulská Department of Metal Forming, Faculty of Metallurgy, Technical University Košice
  • Tibor Kvačkaj Department of Metal Forming, Faculty of Metallurgy, Technical University Košice
  • Vladimír Bodák Research and Testing Institute, U. S. Steel Košice, s.r.o.
  • Róbert Bidulskỳ Institute of Materials Research, SAS Košice


cold working, microgeometry parameters, texturingt, surface roughness, peak coun


The microgeometry of surface is arithmetically expressed by the arithmetical mean deviation of the profile, Ra and peak count, Pc. Roughening of working rolls was achieved by using the technology EDT (Electric Discharge Texturing) and SBT (Shot Blast Texturing). The paper shows the relationship between the basic microgeometry parameters and the adjustment technology of working rolls. Zinc-coated cold rolled steel strips, uncoated cold rolled steel strips and the Ra, Pc parameters were measured using the tangent profilometer “Hommel Tester T1000â€. Measurements of Ra and Pc showed the scatter for SBT and EDT rolls, respectively. EDT can provide a considerably greater degree of control of surface texture than SBT together with an accurate selection of surface roughness, Ra, and peak count, Pc. The peak count obtained can be appreciably higher than that obtained with shot blasting. In comparison with SBT, it is considered that the operating costs associated with EDT are lower.


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How to Cite

J. . Bidulská, T. Kvačkaj, V. Bodák, and R. Bidulskỳ, “The microgeometry parameters of uncoated and zinc-coated cold rolled steel strips”, J Met Mater Miner, vol. 17, no. 2, Apr. 2017.



Original Research Articles