Comparative study by life cycle assessment of an air ejector and orifice plate for experimental measuring stand manufactured by conventional manufacturing and additive manufacturing

Výtisk, Jan; Honus, Stanislav; Kočí, Václav; Pagáč, Marek; Hajnyš, Jiří; Vujanović, Milan; Vrtek, Mojmír

doi:10.1016/j.susmat.2022.e00431

Cited by 5 publications

(4 citation statements)

References 32 publications

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“…When compared with traditional production processes, additive manufacturing technologies are more efficient with regard to materials' consumption. On the other hand, low productivity and the other accessory needs of various additive manufacturing techniques may result in increased energy usage [50,51]. The environment is kept clean, and production is moving towards being more ecologically friendly by using additive manufacturing technologies because cutting fluids, lubricants, and other materials are not required.…”

Section: Environmental Pillarmentioning

confidence: 99%

“…The societal impact of additive manufacturing on social sustainability is poorly understood, with studies focusing mainly on worker's health and working conditions [54]. Additive manufacturing may indeed be safer than traditional methods, but toxicity-related effects still need to be comprehensively investigated [51]. Direct digital manufacturing technologies enable the democratization of production, transforming individuals from passive consumers to prosumers in the global industrial society.…”

Section: Social and Personal Health Pillarmentioning

confidence: 99%

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Sustainable Approaches for the Additive Manufacturing of Ceramic Materials

Villa,

Gianchandani,

Baino

2024

Ceramics

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Additive manufacturing technologies collectively refer to a set of layer-wise deposition methods that typically rely on CAD-CAM approaches for obtaining products with a complex shape/geometry and high precision and reliability. If the additive manufacturing of polymers is relatively easy and scalable due to the low temperatures needed to obtain processable inks, using similar technologies to fabricate ceramic products is indeed more challenging and expensive but, on the other hand, allows for obtaining high-quality results that would not be achievable through conventional methods. Furthermore, the implementation of additive manufacturing allows for the addressing of some important concerns related to the environment and sustainability, including the minimization of resource depletion and waste production/disposal. Specifically, additive manufacturing technologies can provide improvements in energy consumption and production costs, besides obtaining less waste material and less CO2 emissions, which are all key points in the context of the circular economy. After providing an overview of the additive manufacturing methods which are specifically applied to ceramics, this review presents the sustainability elements of these processing strategies, with a focus on both current and future benefits. The paucity of specific available studies in the literature—which are included and discussed in this review—suggests that the research on additive manufacturing sustainability in the field of ceramic materials is in the preliminary stage and that more relevant work still deserves to be carried out in the future to explore this fascinating field at the boundary among ceramics science/technology, production engineering and waste management.

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Section: Environmental Pillarmentioning

confidence: 99%

Section: Social and Personal Health Pillarmentioning

confidence: 99%

Sustainable Approaches for the Additive Manufacturing of Ceramic Materials

Villa,

Gianchandani,

Baino

2024

Ceramics

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“…Yet, it has not been proven that AM processes conclusively are more environmentally friendly than CM processes [21]. Furthermore, very few studies are found in the literature which evaluate the comparison of AM and CM methods comprehensively [22].…”

Section: Introductionmentioning

confidence: 99%

A Review of Conventional versus Additive Manufacturing for Metals: Life-Cycle Environmental and Economic Analysis

2023

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Additive manufacturing (AM) is a recent emerging technology that is being adopted in various industry sectors and supply chains. Life cycle assessment (LCA) and life cycle costing (LCC) are powerful methods that can be used for assessing the environmental and economic performance of emerging manufacturing technologies. This study aims to evaluate the life cycle environmental impacts and cost of computerized numerical control-based (CNC) manufacturing and direct metal laser sintering technology (DMLS) through a cradle-to-gate life cycle analysis. This research has four main novel elements: (i) conducting a recent comprehensive review of metal AM and conventional manufacturing (CM) processes using a systematic method and meta-analysis (ii) comparing the conventional process “CNC machining” and the additive technology “direct metal laser sintering” from the environmental (LCA) and economic (LCC) perspectives, (iii) investigating the influence of geometry complexity and shape size factors on the environmental and cost performance of both manufacturing methods, and (iv) conducting a Monte Carlo simulation-based sensitivity analysis to tackle uncertainty in LCC input parameters. The midpoints and endpoints impact for CNC and AM processes were estimated using the Ecoinvent v3.8 database and ReCiPe (E) impact assessment method. The review revealed that global warming potential is one of the most widely studied environmental indicators; however, only 6% of the studies have investigated the life cycle economic impacts of AM technologies using sensitivity and uncertainty analysis. The results have shown that in terms of ReCiPe endpoints, DMLS has the highest environmental impact on human health while CM has more impact on the eco-system quality. Electricity consumption is the main contributor to environmental impact categories in both manufacturing technologies. This is due to the high electricity utilization for casting and milling conventionally manufactured parts and printing the AM parts. LCC net present values revealed that manufacturing all parts with AM costs 91% more compared to CNC. The LCC analysis has shown that AM is more suitable and cost-effective for parts with highly complex geometries. Whereas CNC machining was found to be economically feasible for large-sized and low-complexity parts. The Monte Carlo sensitivity analysis demonstrated that for the case of AM, the most significant parameter is the processing cost followed by material cost, which highlighted the importance of energy-efficient AM and dematerialization through design for circularity.

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“…This emphasizes the importance of including machinery production in the scope of the LCA study, meaning that the current research may be overlooking relevant environmental impacts in their studies for different degrees of printer usage. In Výtisk et al [32], the manufacturing of an air ejector and orifice plate was compared in terms of environmental performance, by conventional manufacturing and by SLM. Although the results showed that AM had higher impacts in more than half of the impact categories, the authors exalted the relevance in comparing AM and conventional manufacturing machines gate-to-gate, since the depreciation of machine tools for conventional production plays a major role in manufacturing processes.…”

Section: Introductionmentioning

confidence: 99%

Life Cycle Assessment of a Circularity Case Study Using Additive Manufacturing

et al. 2022

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Currently, considering the rising concern in climate change, there is a clear necessity for technologies that can prolong the useful life of products through the ability to repair, re-manufacture and refurbish. As such, additive manufacturing has been a subject of research due to its design and resource consumption capabilities. However, there is a lack of more detailed information regarding environmental performances, especially in Directed Energy Deposition technology. The present paper presents a life-cycle assessment of the production and use of Directed Energy Deposition, making use of foreground data to build a life-cycle inventory and quantify the potential impacts. The equipment is analyzed for its refurbishment capabilities on an obsolete mold , and compared with the environmental impact of producing a new mold through conventional technology. The compiled inventory with detailed and primary information will enrich the current literature on this technology. The impact results show that the robot, deposition table and security cell are the most relevant subsystems for the system production impacts. In the refurbishment analysis, the refurbished mold part has lower impacts than the conventionally produced, thus showing that there is great potential in using additive manufacturing for circular economy loops.

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Comparative study by life cycle assessment of an air ejector and orifice plate for experimental measuring stand manufactured by conventional manufacturing and additive manufacturing

Cited by 5 publications

References 32 publications

Sustainable Approaches for the Additive Manufacturing of Ceramic Materials

Sustainable Approaches for the Additive Manufacturing of Ceramic Materials

A Review of Conventional versus Additive Manufacturing for Metals: Life-Cycle Environmental and Economic Analysis

Life Cycle Assessment of a Circularity Case Study Using Additive Manufacturing

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