Abstract
In this paper, a method for the direct recycling of aluminum scrap by hot extrusion is investigated. 1050 aluminum alloy material in the form of pins remained as scrap after a lateral extrusion process and was mixed with 6060 aluminum alloy chips resulting from a turning operation. Contrary to the conventional method of re-melting aluminum scrap to produce secondary aluminum, this aluminum scrap+chip mixture was cold compacted into billets and hot extruded at 500°C to full rectangular profiles. The extruded profiles were examined by tensile tests and microstructural investigations and compared to the conventionally extruded profiles from as-cast material. It was shown that not only the aluminum chips but also the aluminum scrap material can be recycled directly by hot extrusion, which requires only ~10% of the energy required for recycling by re-melting. Also, the profiles extruded from billets containing 1050 aluminum alloy scrap with and without cooling lubricant were compared and a deteriorating effect was determined.
| Original language | English |
|---|---|
| Journal | International Journal of Material Forming |
| Volume | 3 |
| Issue number | SUPPL. 1 |
| Pages (from-to) | 853-856 |
| Number of pages | 4 |
| ISSN | 1960-6206 |
| DOIs | |
| Publication status | Published - 04.2010 |
| Externally published | Yes |
Research areas and keywords
- Aluminum
- Aluminum scrap
- Chips
- Extrusion
- Recycling
- Engineering
ASJC Scopus Subject Areas
- Materials Science(all)
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