The effect of aging on physical characteristics of recycled AA6061 aluminium chips

Samsi, Mohd Arif and Mustapa, Mohammad Sukri and Badarulzaman, Nur Azam and Mahdi, Ahmed Sahib and Ab Kadir, Muhammad Irfan (2017) The effect of aging on physical characteristics of recycled AA6061 aluminium chips. International Journal of Engineering and Technology (IJET), 8 (6). pp. 2664-2671. ISSN 09754024

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Official URL: DOI:10.21817/ijet/2016/v8i6/160806223

Abstract

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.

Item Type:Article
Uncontrolled Keywords:Aging time; hardness; quenching; physical characteristics; AA6061
Subjects:T Technology > TA Engineering (General). Civil engineering (General) > TA401-492 Materials of engineering and construction. Mechanics of materials
Divisions:Faculty of Mechanical and Manufacturing Engineering > Department of Mechanical Engineering Technology
ID Code:8969
Deposited By:Mr. Mohammad Shaifulrip Ithnin
Deposited On:13 Aug 2018 11:15
Last Modified:13 Aug 2018 11:15

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