Use of Recycled Aluminum in Sand-casting Process

Abstract

This work approaches a methodology to manufacture aluminum components from recycled pieces. In accordance with the Sustainable Development Goals, tasks to develop an innovative climate neutral industry are needed. In this context, a sustainable manufacturing process is proposed. Raw materials are obtained from CNC machined aluminum wastes and recycled aluminum cans. The aim of this research is to compare the loss of mechanical properties by fulfilling fatigue tests in pieces based on both commercial and recycled aluminum components. The development of this work comprises two main phases. First, the recycle process to obtain the raw materials is approached. Then, manufacture process of new elements for its subsequent mechanical test is analyzed. Recycling stage requires the selection, cleaning and foundry of used pieces in order to obtain ready-to-use raw materials. Wastes from CNC require removing the residual oil. In order to be able to use cans, paint and plastic cover need to be removed. Regarding to manufacturing and mechanical test, two different type of test pieces are required to be manufactured by the same process. Both commercial and recycled aluminum are obtained. The production of these pieces includes a sand casting manufacturing process. For this purpose, a 1.75 kW oven it is used. This includes a graphite crucible with 3 kg of capacity. Once the pieces are manufactured, fatigue tests validate the promising alternative for manufacturing recycled aluminum components.

Presenters

Ángel Mariano Rodríguez Pérez
Interim Professor, Departamento de Ingeniería Mecánica, University of Huelva, Huelva, Spain

Jose Antonio Hernández Torres
Interim Professor, Mechanical Engineering, Universidad de Huelva, Huelva, Spain

Julio Jose Caparros Mancera
Student, PhD, University of Huelva, Huelva, Spain

Details

Presentation Type

Paper Presentation in a Themed Session

Theme

Histories of Technology

KEYWORDS

Aluminium, Recycling, Cast, Fatigue