Tensile lap-shear and flexural behaviour of aluminium metal foil parts made by composite metal foil manufacturing
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This paper deals with the production and experimental investigation of very thin aluminium 1050 grade foil products. Single lap joints and samples for flexural testing were made using composite metal foil manufacturing (CMFM) using a special brazing paste. The effect of test speeds, material thickness and lap lengths on aluminium 1050 single lap joints was analysed. The test results showed that all the samples failed within the parent metal and the bond created during the process remained intact. Two distinct modes of failure were observed for the single lap joints. Microstructural analysis was carried out to analyse the efficacy of the paste in terms of creating a strong bond between the metal foils. Comparative three-point flexural testing was conducted using a part made by conventional machining method and another made by CMFM. The results showed that the part made by CMFM has 7.7% higher load values compared to the part made by the machining method. Both the samples exhibit similar elastic and plastic regions but CMFM part also shows higher strength. The results validate the effectiveness of CMFM and demonstrate its capabilities in terms of repeatability, reproducibility and strength.
KeywordsBrazing Lap-shear test Three-point flexural test Microstructure Metal foils
The authors would like to thank their affiliation institution for the resources.
Compliance with ethical standards
Conflict of interest
On behalf of all authors, the corresponding author states that there is no conflict of interest.
- 14.Butt J, Mebrahtu H, Shirvani H (2014) A novel rapid prototyping process for the production of metal parts. In: Proceedings of the 2nd international conference on advances in civil, structural and mechanical engineering-CSM, Birmingham, pp 26–29Google Scholar
- 17.Butt J (2016) A novel additive manufacturing process for the production of metal parts. Doctoral dissertation, Anglia Ruskin UniversityGoogle Scholar
- 18.Kong CY, Soar RC, Dickens PM (2002) August. An investigation of the control parameters for aluminum 3003 under ultrasonic consolidation. In: Proceeding 13th solid freeform fabrication symposium, pp 199–211Google Scholar
- 19.British Standards Institution (2009) BS EN 1465: Adhesives—determination of tensile lap-shear strength of bonded assemblies. London, England: BSIGoogle Scholar
- 20.British Standards Institution (2016) BS EN ISO 7438: Metallic materials—bend Test. London, England: BSIGoogle Scholar
- 21.British Standards Institution (1995) BS EN ISO 10365: Adhesives—designation of main failure patterns. London, England: BSIGoogle Scholar
- 27.Butt J, Mebrahtu H, Shirvani H (2015) Thermo-mechanical analysis of dissimilar al/cu foil single lap joints made by composite metal foil manufacturing. World Acad Sci Eng Technol Int J Mech Aerosp Ind Mech Manuf Eng 10(1):41–46Google Scholar
- 28.Nammi SK, Butt J, Mauricette JL, Shirvani H (2017) Numerical analysis of thermal stresses around fasteners in composite metal foils. In: IOP conference series: materials science and engineering, vol 280, no 1. IOP Publishing, Birmingham, UK, p 012016Google Scholar