The potential and challenges of recycling metals swarf from machining processes

Abstract

The dissertation discusses the challenges and opportunities for efficient and sustainable recycling of metal swarf, which is a hazardous waste generated during metal processing. The study investigates the effectiveness of different recycling methods for aluminum, steel, and titanium, including hot extrusion, equal channel angular pressing, forging, and spark plasma sintering. The dissertation also highlights the importance of addressing the particle size distribution of swarf and the presence of cutting fluids in the recycling process. The findings suggest that while direct conversion recycling methods of swarf shows promise, further research is needed to optimise recycling practices and reduce energy consumption associated with metal swarf recycling.