Systematic analysis of comparative studies between additive and conventional manufacturing focusing on the environmental performance of logistics operations

Abstract

Based on the promise to revolutionize the entire supply chain, additive manufacturing is seen as an alternative to conventional manufacturing processes, since it simplifies the production of small batches, shortens the distances between production and consumption and generates new distribution models. Due to its huge potential to spread more sustainable environmental practices, investigations on the environmental assumptions, concerning the application of additive manufacturing technologies, are required. Therefore, based on a systematic literature review, this study aimed to analyze the studies that addressed the environmental performance of logistics operations in a comparison among conventional and additive manufacturing, using the Life Cycle Assessment technic (LCA). Although there are few available studies that quantitatively analyze and compare the environmental performance of the additive manufacturing process with traditional process from a transport perspective, it has been concluded that reducing the distances and the quantity of transported products, carbon dioxide emissions and the consumption of energy resources are reduced.

Carbon Emissions in Transportation: A Synthesis Framework

“…As illustrated in Figure 5, the systematic literature review was the most common methodology adopted [26,27,29,30,31,33,35,38,40,41,42,43], followed by narrative literature reviews [20,23,24,34,37,39,44], critical reviews [21,28,32], and, finally, meta-analyses [19,22] and state-of-the-art reviews [25,36]. Interestingly, even though the systematic review is the most popular review approach, all systematic reviews were concentrated in the last seven years (i.e., 2016 to 2022), showing an increasing trend towards more rigour in the academic review of the subject.…”

“…On a comparative analysis of additive and conventional manufacturing, Pilz et al [38] conclude that additive manufacturing reduces the distances and quantity of products transported, thus reducing energy consumption and CO2 emissions. However, Pilz et al [38] draw attention to the need for more studies in decentralised supply chains, particularly those based on the life cycle assessment (LCA) approach, for a more comprehensive understanding of the environmental impacts of additive manufacturing. Also, concerning technologies that indirectly impact transportation, Salvucci et al [32] identify carbon capture and storage as a strategy.…”

Artificial reefs through additive manufacturing: a review of their design, purposes and fabrication process for marine restoration and management

“…Expanding across various industrial sectors, AM enhances functionality, productivity and competitiveness, revolutionising numerous production methods (Vafadar et al , 2021; Lim et al , 2016). Unlike conventional subtractive manufacturing and formative manufacturing, which involve casting into moulds or removing material through machining, AM offers industry benefits in customisation, complexity (Pereira et al , 2019), reduced waste, and improved sustainability (Pilz et al , 2020; Rouf et al , 2022).…”