ISSN:
1013-9826
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
The efforts of new automotive industry are mainly directed towards the substitution ofaluminum for steel in the body structure because the aluminum structures are lighter than traditionalsteel ones and meet the requirements, in terms of both vehicle design and manufacture. However,this substitution is not so automatic, but it is important to study the material properties and thestructure design, focusing the attention on the methods of joining.Welding, typical technique to joint steel parts, is particularly difficult when applied on aluminumones and then, in many cases, the adhesive bonding is preferred.To optimise the joint performances it is necessary to pre-treat the metal surface, not only to removecontaminants, but also to provide the intimate contact needed for the adhesive to successfully bondwith the adherent surface.The mere cleaning of aluminum surfaces is not suitable for their bonding due to the oxide layer thatnaturally occurs on exposure to air so we need to apply a more effective treatment (mechanical orchemical etching) to increase the adhesion capability of the substrates.In this work different adhesive joint configurations (single lap) between aluminum substrates arestudied. Two different resins are employed to evaluate the influence of the adhesive on the jointperformances. Moreover the aluminum sheets are treated with a chemical etching with two differentprocedures
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/54/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.344.669.pdf
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