Abstract
The foundry process was aluminum reuse path to which we are accustomed. However, the contemporary idea consists on aluminum chips valorization to obtain finished parts with significant height change. Therefore, the approach of metal waste regeneration is based on direct use of machining chips into consolidated pellets by sintering. This paper assessed the influence of the grain size on the sintering of compacted EN AW 5083 aluminum alloy chips. In particular, it investigates the structural and mechanical properties of sintered samples that are not only depending on particle size distribution but also on implementation’ conditions such as the compacting pressure and the thermal treatment. Indeed, in order to highlight the compacting machine kinematics influence, the behavior of compacted pellets at two different pressures will be compared. Added to that, from pellets’ mechanical response, a characterization model is deduced to predict mechanical behavior for other subsequent uses more complex. This model is named Dracker–Prager Cap which is one of the families of plasticity models. It describes the aluminum shaving’s behavior in which the yield behavior depends on the equivalent pressure stress. Thus, this material modeling is applied in the numerical simulation based on the finite element calculation (FE) which allows a significant role in describing the compacting as well as sintering processes.
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Ketata, A., Guidara, A., Bouguecha, A., Bouaziz, J., Haddar, M. (2022). Aluminum Alloy Chips Regeneration by Sintering. In: Ben Amar, M., Bouguecha, A., Ghorbel, E., El Mahi, A., Chaari, F., Haddar, M. (eds) Advances in Materials, Mechanics and Manufacturing II. A3M 2021. Lecture Notes in Mechanical Engineering. Springer, Cham. https://doi.org/10.1007/978-3-030-84958-0_41
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DOI: https://doi.org/10.1007/978-3-030-84958-0_41
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