Title

A CRITICAL EVALUATION OF HARD CHROME COVERED ROLLING MILL ROLLS

Authorship

Oliveira, Antonio Fabiano de; Silva, Guilherme Frederico Bernardo Lenz e; Nunes, Eduardo; Plaut, Ronald Lesley; Oliveira, Ricardo Lívio Ferreira; Bagger, Karl Kristian; Rosário, Célio Souza do

Oliveira, Antonio Fabiano de

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Silva, Guilherme Frederico Bernardo Lenz e

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Nunes, Eduardo

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Plaut, Ronald Lesley

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Oliveira, Ricardo Lívio Ferreira

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Bagger, Karl Kristian

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Rosário, Célio Souza do

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DOI

10.5151/1983-4764-28100

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Abstract

The aim of the present research work is to study the influence of hard chrome covered skin pass cold rolling rolls using 2D/3D surface topography, i.e. roughness characterization. The common stochastic structure Shot Blast Texturing (SBT) does not meet all requirements related to the production line regards to the finished product. The Hard Chrome layer, applied on these SBT rolls, can improve the sheet surface quality and is of fundamental interest mainly for those steel mills that do not have another alternative to new surface structures such as those that may be provided by the EDT, LT, EBT, etc. methods. The function of the generated surfaces, obtained by these different methods is going to influence the tribological properties during the subsequent forming processes. On the other hand, they can increase the product final cost or require large investments to obtain such surfaces. The results here presented are in accordance with other recently published research work, showing that there is a relationship between these parameters, and that further detailed studies are needed.

Keywords

3D roughness, Surface topography, Skin pass, Operational window

Operational window