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Analysis, Validation and Optimization of the Multi-Stage Sequential Wiredrawing Process of EN AW-1370 Aluminium

Department of Mechanical Engineering, University of Cordoba, Medina Azahara Avenue 5, 14071 Cordoba, Spain
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Metals 2019, 9(9), 1021; https://doi.org/10.3390/met9091021
Received: 20 August 2019 / Revised: 16 September 2019 / Accepted: 18 September 2019 / Published: 19 September 2019
(This article belongs to the Special Issue Analysis and Design of Metal-Forming Processes)
For the wiredrawing of aluminium, the initial wire rod is obtained by continuous inverted casting. The raw geometry is industrially processed in a linear multi-step wiredrawing sequence to obtain a wire that is commonly used for the manufacture of electrical conductors. In the present work a complete study of the material has been made. The experimental procedure consisted in the realization of a sequence of section reduction stages in the laboratory, a sequence designed following the technological criteria recommended by the manufacturer of the drawing machine in which the industrial process will be implemented. From the specimens corresponding to each reduction step, it has been possible to know the evolution of the main mechanical properties when this pure aluminium is processed by wiredrawing. This information has led to establish the hardening law by which it is possible characterize the plastic behaviour of this pure metal when it is transformed by this specific sequential process of cold forming. The strain hardening law has been implemented in a numerical simulation software application and the experimental setup has been simulated for its validation. Finally, the classic analytical solution founded in the “slab method” has been applied for the design of a proposal for the optimization of the industrial wiredrawing process. View Full-Text
Keywords: wiredrawing; pure aluminium; EN AW-1370 aluminium; finite element method; multistage wiredrawing; aluminium wiredrawing; strain hardening; cold forming; Deform2D wiredrawing; pure aluminium; EN AW-1370 aluminium; finite element method; multistage wiredrawing; aluminium wiredrawing; strain hardening; cold forming; Deform2D
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Rodríguez-Alabanda, Ó.; Romero, P.E.; Molero, E.; Guerrero-Vaca, G. Analysis, Validation and Optimization of the Multi-Stage Sequential Wiredrawing Process of EN AW-1370 Aluminium. Metals 2019, 9, 1021.

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