Influence of Material-Related Aspects of Additive and Subtractive Ti-6Al-4V Manufacturing on Energy Demand and Carbon Dioxide Emissions

摘要: Summary The additive manufacturing of metal parts represents a promising process that could be used alongside traditional methods. The research scenario in this field is still largely unexplored, as far the technological solutions adopted to integrate different processes are concerned and terms environmental economic impact assessment. In article, an electron beam melting (EBM) machining have been analyzed compared using cradle-to-grave life cycle–based approach. production components made Ti-6Al-4V alloy has assumed case study. proposed methodology able account for all main factors influence on energy demand carbon dioxide emissions when component shape varied. results prove that, besides direct intensity processes, impacts related material usage usually dominant. Therefore, complex geometries manufactured, approach best strategy, if it enables larger amount savings than conventional machining. Vice versa, small machined off, high EBM negative effect performance process.