The effect of aging on physical characteristics of recycled AA6061 aluminium chips
Solid state recycling AA6061 chips by cold compression is a technique that used lower energy consumption and operating cost compared to the conventional recycling technique by casting. This research is to investigate physical characteristics of the milled recycling aluminium AA6061 according to the...
| Main Authors: | , , , , |
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| Format: | Article |
| Published: |
Engg Journals Publications
2017
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| Subjects: | |
| Online Access: | DOI:10.21817/ijet/2016/v8i6/160806223 DOI:10.21817/ijet/2016/v8i6/160806223 |
| Summary: | Solid state recycling AA6061 chips by cold compression is a technique that used lower
energy consumption and operating cost compared to the conventional recycling technique by casting.
This research is to investigate physical characteristics of the milled recycling aluminium AA6061
according to the change of the aging time (heat treatment) using the milling process and followed by a
cold press forging process. The chip of AA6061 that produced from high speed milling was used. Physical
property of the milled recycled chip of AA6061 was studied. Six values of aging time were taken (0, 2, 4, 6,
8, and 10) hours. On the other hand, the quenching and aging temperature is constant. The results were
showing that the microstructure, porosity and density, and microhardness increased with increasing the
aging time until 10 hours. Its shows that density (2.54 g/cm3), porosity (5.46 %), and hardness value
(125.34 HV). And for the lower results are shows at 0 aging time where the result is density (1.96 g/cm3),
porosity (25.39 %), and hardness value (81.36 HV). It can be concluded; 10 hours of aging time is the best
choice for all groups. |
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