Painting of aluminium panels - state of the art and development issues

Xu, Zhenhai and Anyasodor, Gerald and Qin, Yi (2015) Painting of aluminium panels - state of the art and development issues. In: 4th International Conference on New Forming Technology, 2015-08-06 - 2015-08-09, Crowne Plaza Glasgow.

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    Abstract

    Auto-makers plan a broad shift from steel to aluminium uses over the next decade. In North America, for example, the target is to have 18% of vehicles having all-aluminium bodies by 2025, in spite of that only less than 1% has been achieved in 2014. To achieve this transformation, painting aluminium panels in a mass-production scale with high quality is an important requirement to be met, considering that for long-term protection and surface appearance of the vehicles to be made as well as cost issues. This paper presents a review work carried out on the key elements concerning the painting process, progress in research and applications. Special issues concerning painting aluminium, including the pretreatment of panels surface before e-coat application and the pretreatment of panels before paint baking, are particularly addressed, and remaining issues relating to high quality painting in mass production are discussed.