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Volume 11
Issue 6
10.3390/met11060979
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Article

The Interaction between the Sheet/Tool Surface Texture and the Friction/Galling Behaviour on Aluminium Deep Drawing Operations

by
Alaitz Zabala
1,*,
Lander Galdos
1,
Chris Childs
2,
Iñigo Llavori
1,
Andrea Aginagalde
1,
Joseba Mendiguren
1 and
Eneko Saenz de Argandoña
1
1
Mechanics and Industrial Production, Faculty of Engineering, Mondragon Unibertsitatea, Loramendi 4, 20500 Mondragon, Spain
2
Sarclad Limited, Unit 3-4 Evolution, Advanced Manufacturing Park, Whittle Way, Rotherham S60 5BL, UK
*
Author to whom correspondence should be addressed.
Metals 2021, 11(6), 979; https://doi.org/10.3390/met11060979
Submission received: 15 May 2021 / Revised: 8 June 2021 / Accepted: 14 June 2021 / Published: 19 June 2021
(This article belongs to the Special Issue Forming of Aluminium Alloys)
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Abstract

The increasing demands for lightweight design in the transport industry have led to an extensive use of lightweight materials such as aluminium alloys. The forming of aluminium sheets however presents significant challenges due to the low formability and the increased susceptibility to galling. The use of tailored workpieces and controlled die roughness surfaces are common strategies to improve the tribological behaviour, whilst galling is still not well understood. This work is aimed at analysing the interplay between the sheet and tool surface roughness on the friction and galling performance. Different degrees of Electro Discharge Texturing (EDT) textures were generated in AA1050 material strips, and tooling presenting different polishing degrees were prepared. Strip drawing tests were carried out to model the tribological condition and results were corroborated through cup drawing tests. A new galling severity index (GSI) is presented for a quick and quantitative determination of both galling occurrence and severity. The present study underlines the key role of die topography and the potential of die surface functionalization for galling prevention.
Keywords: surface texturing; friction; galling; drawing; aluminium; strip drawing test surface texturing; friction; galling; drawing; aluminium; strip drawing test

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MDPI and ACS Style

Zabala, A.; Galdos, L.; Childs, C.; Llavori, I.; Aginagalde, A.; Mendiguren, J.; Saenz de Argandoña, E. The Interaction between the Sheet/Tool Surface Texture and the Friction/Galling Behaviour on Aluminium Deep Drawing Operations. Metals 2021, 11, 979. https://doi.org/10.3390/met11060979

AMA Style

Zabala A, Galdos L, Childs C, Llavori I, Aginagalde A, Mendiguren J, Saenz de Argandoña E. The Interaction between the Sheet/Tool Surface Texture and the Friction/Galling Behaviour on Aluminium Deep Drawing Operations. Metals. 2021; 11(6):979. https://doi.org/10.3390/met11060979

Chicago/Turabian Style

Zabala, Alaitz, Lander Galdos, Chris Childs, Iñigo Llavori, Andrea Aginagalde, Joseba Mendiguren, and Eneko Saenz de Argandoña. 2021. "The Interaction between the Sheet/Tool Surface Texture and the Friction/Galling Behaviour on Aluminium Deep Drawing Operations" Metals 11, no. 6: 979. https://doi.org/10.3390/met11060979

APA Style

Zabala, A., Galdos, L., Childs, C., Llavori, I., Aginagalde, A., Mendiguren, J., & Saenz de Argandoña, E. (2021). The Interaction between the Sheet/Tool Surface Texture and the Friction/Galling Behaviour on Aluminium Deep Drawing Operations. Metals, 11(6), 979. https://doi.org/10.3390/met11060979

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