engleski

SOLID-STATE RECYCLING OF EN AW 2011 ALUMINIUM CHIPS

The main aim of this paper is to investigate influence of the depth of cut (size of chips) in the process of an aluminium alloy turning, extrusion temperature and compaction force on process of solid-state recycling (SSR) of produced chips. SSR process consists of cold compaction of obtained chips for the purpose of producing compacted billets and their hot extrusion to produce semi- finished round bar product. An original approach to this problem is through mathematical modelling presented with the design of experiments. It was proved the influence of main researched factors on yield strength (YS) and hardness of recycled samples. The extrusion temperature of 500°C, compaction force of 500 kN, and depth of cut of 0, 5 mm are the optimal values for the best recycling results regarding YS. On the other hand increment of the depth of cut increases the hardness of samples

Aluminium recycling; Solid-state recycling; Cold compaction; Hot extrusion; Turning

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