Technological Investigation of Clad Sheet Bonding by Hot Rolling

Abstract:

In this study the bonding properties of three layer-plated aluminum sheets are investigated. The alloys applied in specific layers were as follows: AlMn1Si0.8 (core alloy) and AlSi10 (liner). The bonding was performed on a Von Roll experimental roll mill using hot rolling. The experimental temperatures were 460, 480 and 500 °C, respectively. To qualify bond development, T-peel test was used. The test was performed using an Instron universal material testing machine. T-peel test can be well used for the qualification of bond strength as the peel-off force and bond value developed on contacting surfaces are proportional. In addition to T-peel test, optical micrographs and SEM micrographs were also captured, in which typical bond faults were sought. The study aims at modelling the technology used in industry and exploring some typical bond faults as well as suggesting the causes generating these and their remedy. The impact of surface roughening before heating was studied as well. Also, the study aimed at confirming the suitability of T-peel test to qualify bond strength.

• Periodical: Key Engineering Materials (Volumes 651-653)
• Pages: 243-247
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.651-653.243
• Online since: July 2015
• Authors: Gábor Szabó*, Valéria Mertinger, István Zupkó, Tamás Mikó
• Keywords: Rolling , AlMn1Si0.8, AlSi10, Cladding, Plating, Roll Bonding, Sandwich Sheet Rolling, T-Peel Test, Welding by Rolling

References

[1] Bay N. Cold welding, Part I, Characteristic, bonding mechanisms, bond strength. Met Construct (1986) 369–372.

[2] Eizadjou M., Danesh Manesh H., Janghorban K., Mechanism of warm and cold roll bonding of aluminum alloy strips, Materials and Design (2009) 4156–4161.

DOI: 10.1016/j.matdes.2009.04.036

[3] Zhang W., Bay N., Cold welding-theoretical modeling of weld formation. Weld J (1997) 417–420.

[4] Wright P. K., Snow D. A., Tay C. K., Interfacial conditions and bond strength in cold pressure welding by rolling. Met Technol (1978) 24–31.

DOI: 10.1179/mt.1978.5.1.24

[5] Wu H. Y., Lee S., Wang J. Y., Solid state bonding of iron-base alloy, steel-brass and aluminum alloy. J Mater Process Technol (1998) 173–179.

[6] Danesh Manesh H., Karimi Taheri A., Study of mechanisms of cold roll welding of aluminum alloy to steel strip. J Mater Sci Technol (2004) 1064–1068.

DOI: 10.1179/174328413x13789824293461

[7] Danesh Manesh H., Karimi Taheri A., An investigation of deformation behavior and bonding strength of bimetal strip during rolling. Mech Mater (2005) 531–542.

DOI: 10.1016/j.mechmat.2004.04.004

[8] Zhang W., Bay N., Cold welding-experimental investigation of the surface preparation methods. Weld J (1997) 326–330.

[9] Szabó G., Mertinger V., Technological investigation of plated aluminium sheets. Materials Science Forum Vol. 729 (2013) pp.482-486.

DOI: 10.4028/www.scientific.net/msf.729.482

[10] Szabó G., Mertinger V., Investigation of typical bonding faults of plated Al sheets developed during rolling. Materials Science Forum Vol. 812 (2015) pp.387-392.

DOI: 10.4028/www.scientific.net/msf.812.387