Production and subsequent forming of chip-based aluminium sheets without remelting

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Date

2021-10-22

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Abstract

Bent components and deep drawn cups are produced by direct usage of aluminium chips without melting following a new process chain: hot extrusion of aluminium chips to a cylindrical open profile, flattening, subsequent rolling and bending or deep drawing. The properties of the hot extruded chip-based AA6060 sheets are examined by tensile tests and microstructural investigations and the results are compared with those obtained from material extruded from conventional cast billets. The chip-based sheets were used to form components by bending or deep drawing. No significant differences between the bent components or deep-drawn cups made of chips and those from cast material are observed regarding their capability for further plastic forming operations. This makes the new process route a resource-efficient alternative for the production of aluminium sheet products.

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Keywords

Recycling, Chip extrusion, Solid state recycling, Metal forming, Sustainability, Aluminium scrap recycling

Subjects based on RSWK

Aluminiumblech, Blechumformen, AluminiumrĂ¼ckgewinnung, Sekundäraluminium, Strangpressen, Metallspan, Recycling

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