Resource Efficient Injection Moulding with Low Environmental Impacts

Gantar, Gašper; Glojek, Andrej; Mori, Mitja; Nardin, Blaž; Sekavčnik, Mihael

doi:10.5545/sv-jme.2012.661

Cited by 10 publications

(19 citation statements)

References 6 publications

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“…We considered a one‐cavity mold and plastic product design developed by Gantar and colleagues (), which identified the energy consumption, cost, and operation parameters related to the mold design, manufacturing processes, and injection molding. The mold primarily consists of two categories of components.…”

Section: Methodsmentioning

confidence: 98%

“…As shown in figure , the lead time for manufacturing the mold includes time spent in designing, process planning, AM or CM, finishing, testing, and transportation (Bryce ; Gantar et al. ; Gunasekaran et al. ).…”

Section: Methodsmentioning

confidence: 99%

“…We derived the lead‐time data for each step by estimating the time spent in manufacturing and finishing using the original time estimation from Gantar and colleagues for CM, and time estimation models constructed for AM based on the machine throughput and the mass of the mold (Gantar et al. ; Gausemeier et al. ; EOS ; 3T RPD ).…”

Section: Methodsmentioning

confidence: 99%

“…The downtime estimates for maintenance processes were either compiled directly from published values in the literature or calculated with a time estimation model specifically constructed for the processes (MoldMaking Technology ; Gantar et al. ; Johnson , , ; Wilson et al. ; Gausemeier et al.…”

Section: Methodsmentioning

confidence: 99%

“…The functional unit is 1 million cycles of the injection molding (Gantar et al. ), which is the designed lifetime of the mold in all four design cases. The system boundary includes the following major process steps for CM and AM pathways in the four scenarios: material production; mold manufacturing; mold transportation; mold use, including plastic part production, mold maintenance, and repair; and the end of life (EoL) of the mold.…”

Section: Methodsmentioning

confidence: 99%

See 4 more Smart Citations

Environmental and Economic Implications of Distributed Additive Manufacturing: The Case of Injection Mold Tooling

Huang

Riddle

Graziano

et al. 2017

J of Industrial Ecology

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SummaryAdditive manufacturing (AM) holds great potentials in enabling superior engineering functionality, streamlining supply chains, and reducing life cycle impacts compared to conventional manufacturing (CM). This study estimates the net changes in supply-chain lead time, life cycle primary energy consumption, greenhouse gas (GHG) emissions, and life cycle costs (LCC) associated with AM technologies for the case of injection molding, to shed light on the environmental and economic advantages of a shift from international or onshore CM to AM in the United States. A systems modeling framework is developed, with integrations of lead-time analysis, life cycle inventory analysis, LCC model, and scenarios considering design differences, supply-chain options, productions, maintenance, and AM technological developments. AM yields a reduction potential of 3% to 5% primary energy, 4% to 7% GHG emissions, 12% to 60% lead time, and 15% to 35% cost over 1 million cycles of the injection molding production depending on the AM technology advancement in future. The economic advantages indicate the significant role of AM technology in raising global manufacturing competitiveness of local producers, while the relatively small environmental benefits highlight the necessity of considering trade-offs and balance techniques between environmental and economic performances when AM is adopted in the tooling industry. The results also help pinpoint the technological innovations in AM that could lead to broader benefits in future. Keywords:additive manufacturing industrial ecology injection molding life cycle assessment (LCA) life cycle costing (LCC) supply chain management Supporting information is linked to this article on the JIE website

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Section: Methodsmentioning

confidence: 98%

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

See 3 more Smart Citations

Environmental and Economic Implications of Distributed Additive Manufacturing: The Case of Injection Mold Tooling

Huang

Riddle

Graziano

et al. 2017

J of Industrial Ecology

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Sustainability Assessment and Advisory in Mould&Die: Implementation Challenges and Solutions

Sorlini

Fontana

Alge

et al. 2014

Progress in Pattern Recognition, Image Analysis, Computer Vision, and Applications

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Part 1: Knowledge-Based SustainabilityInternational audienceThe paper describes a possible but concrete implementation pattern that is currently used to introduce and apply a sustainability-centered strategy in a mould&die company (INTERROLL SA). Focus of the analysis, implementation requirements, designed procedures and a draft software architecture are here outlined, forming the conceptual basis for a value-adding and easily adoptable approach intended to promote the implementation of a so widely-speculated strategic theory. The described path could be easily adapted to other mould&die companies and further extended to different industrial sectors

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A comparison of energy consumption in bulk forming, subtractive, and additive processes: Review and case study

Yoon

Lee

Kim

et al. 2014

Int. J. of Precis. Eng. and Manuf.-Green Tech.

276

109

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In addition to the steps taken to ensure optimal efficiency in industry, significant effort has been directed towards the green and sustainable manufacturing practices. In this paper, we review conventional and state-of-the-art manufacturing technologies to provide insight into energy consumption at the processing level. In the review, collected energy data were summarized for three manufacturing categories: conventional bulk-forming, subtractive, and additive manufacturing (AM) processes. Additive processes, in particular, are strongly emphasized in the Advanced Manufacturing Initiatives proposed recently by the United States government. Currently, the specific energy consumption (SEC) of additive processes is estimated to be ~100-fold higher than that of conventional bulk-forming processes, with subtractive processes showing intermediate values that varied over a wide range in terms of scale. Although SEC may vary with respect to the details, in general, the research showed a negative correlation with respect to the reciprocal logarithmic form of the productivity. In addition to the literature review presented, we performed case studies for the three manufacturing processes, to provide practical examples of energy consumption. Additionally, our results indicated that AM processes may require more extensive evaluation; i.e., an assessment of the entire manufacturing cycle, for more accurate prediction of the subsequent environmental impact.

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Resource Efficient Injection Moulding with Low Environmental Impacts

Cited by 10 publications

References 6 publications

Environmental and Economic Implications of Distributed Additive Manufacturing: The Case of Injection Mold Tooling

Environmental and Economic Implications of Distributed Additive Manufacturing: The Case of Injection Mold Tooling

Sustainability Assessment and Advisory in Mould&Die: Implementation Challenges and Solutions

A comparison of energy consumption in bulk forming, subtractive, and additive processes: Review and case study

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