Influence of surface roughness on the bonding quality in twin-roll cast clad strip

Manufacturing of aluminum-steel clad strips by means of twin-roll casting is of great interest due to a shorter production chain in comparison with convenient technologies. Experiments on twin-roll casting of clad strips of pure aluminum and an austenitic stainless steel of 2.5 mm total thickness wi...

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Bibliographic Details
Published inMaterials and manufacturing processes Vol. 33; no. 7; pp. 727 - 734
Main Authors Stolbchenko, Mykhailo, Grydin, Olexandr, Schaper, Mirko
Format Journal Article
LanguageEnglish
Published Taylor & Francis 19.05.2018
Subjects
Aluminum
bonding
casting
clad
grinding
roll
roughness
steel
strength
strip
surface
twin
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Summary:Manufacturing of aluminum-steel clad strips by means of twin-roll casting is of great interest due to a shorter production chain in comparison with convenient technologies. Experiments on twin-roll casting of clad strips of pure aluminum and an austenitic stainless steel of 2.5 mm total thickness with the inline abrasive cleaning of a steel substrate's surface performed. The corresponding device for the inline surface preparation is designed. The influence of surface roughness of the substrate's surface on the bonding strength between strip layers is analyzed. The mechanism of intermetallic bonding on the roughened surfaces is discussed. It is shown that surface roughness of steel substrate up to 4.2 µm provides bonding strength above 100 MPa.
ISSN:1042-6914
1532-2475
DOI:10.1080/10426914.2017.1317788