Direct recycling of 1050 aluminum alloy scrap material mixed with 6060 aluminum alloy chips by hot extrusion
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In: International Journal of Material Forming, Vol. 3, No. SUPPL. 1, 04.2010, p. 853-856.
Research output: Journal contributions › Journal articles › Research › peer-review
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TY - JOUR
T1 - Direct recycling of 1050 aluminum alloy scrap material mixed with 6060 aluminum alloy chips by hot extrusion
AU - Güley, V.
AU - Ben Khalifa, N.
AU - Tekkaya, A. E.
PY - 2010/4
Y1 - 2010/4
N2 - 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.
AB - 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.
KW - Aluminum
KW - Aluminum scrap
KW - Chips
KW - Extrusion
KW - Recycling
KW - Engineering
UR - http://www.scopus.com/inward/record.url?scp=78651531086&partnerID=8YFLogxK
UR - https://www.mendeley.com/catalogue/d4e6cfad-abe5-388e-afd8-eb8ddb05a0a1/
U2 - 10.1007/s12289-010-0904-z
DO - 10.1007/s12289-010-0904-z
M3 - Journal articles
AN - SCOPUS:78651531086
VL - 3
SP - 853
EP - 856
JO - International Journal of Material Forming
JF - International Journal of Material Forming
SN - 1960-6206
IS - SUPPL. 1
ER -