scholarly journals A Grey Box Software Framework for Sustainability Assessment of Composed Manufacturing Processes: A Hybrid Manufacturing Case

Procedia CIRP ◽  
2019 ◽  
Vol 80 ◽  
pp. 440-445
Author(s):  
Sriram Manoharan ◽  
Karl R. Haapala
Keyword(s):  
Sustainability Assessment ◽  
Manufacturing Processes ◽  
Hybrid Manufacturing ◽  
Software Framework

Hybride Fertigung mittels Laser-Strahlschmelzen/Hybrid manufacturing by laser-based powder bed fusion

2021 ◽  
Vol 111 (06) ◽  
pp. 363-367
Author(s):  
Lukas Langer ◽  
Matthias Schmitt ◽  
Georg Schlick ◽  
Johannes Schilp
Keyword(s):  
Additive Manufacturing ◽  
Manufacturing Processes ◽  
Complex Geometries ◽  
Hybrid Manufacturing ◽  
Powder Bed Fusion ◽  
Process Chain ◽  
Manufacturing Costs ◽  
Additive Fertigung ◽  
Powder Bed

Die additive Fertigung ermöglicht komplexe Geometrien und individualisierte Bauteile. Die hohen Material- und Fertigungskosten können ein Hindernis für einen wirtschaftlichen Einsatz sein. In der hybriden additiven Fertigung werden die Vorteile konventioneller sowie additiver Fertigungsverfahren kombiniert. Für eine weitere Steigerung der Wirtschaftlichkeit und Effizienz werden nichtwertschöpfende Schritte der Prozesskette identifiziert und Automatisierungsansätze entwickelt.   Additive manufacturing enables complex geometries and individualized components. However, high material and manufacturing costs can be a hindrance for economical use. Hybrid additive manufacturing combines the advantages of conventional with additive manufacturing processes. For a further increase in profitability and efficiency, non-value-adding steps in the process chain are identified and automation approaches developed.

Using formal methods to model hybrid manufacturing processes

2011 ◽  
pp. 52-56 ◽  
Author(s):  
Aydin Nassehi ◽  
Stephen Newman ◽  
Vimal Dhokia ◽  
Zicheng Zhu ◽  
Reza Imani Asrai
Keyword(s):  
Formal Methods ◽  
Manufacturing Processes ◽  
Hybrid Manufacturing

Sustainability Assessment Methodology for Concrete Manufacturing Process: A Fuzzy Inference System Approach

2013 ◽  
Vol 845 ◽  
pp. 814-818 ◽  
Author(s):  
Pouyan Rezvan ◽  
Amir Hossein Azadnia ◽  
Mohd Yusof Noordin ◽  
Seyed Navid Seyedi
Keyword(s):  
Portland Cement ◽  
Fuzzy Inference System ◽  
Manufacturing Process ◽  
Sustainability Assessment ◽  
Fuzzy Inference ◽  
Hybrid Approach ◽  
Three Dimensions ◽  
Manufacturing Processes ◽  
Slag Cement ◽  
Inference System

Sustainability assessment of concrete manufacturing processes has recently received great attention among scholars and practitioners. While most of the studies on sustainability assessment of concrete manufacturing processes focus on economic and environmental issues, those which consider all three dimensions of sustainability (social, economic, and environmental) simultaneously are rather limited. In this study, a hybrid approach of fuzzy inference system and analytical hierarchy process (AHP) is proposed in order to evaluate the sustainability level of concrete manufacturing processes based on Life Cycle Assessment (LCA) principals. AHP is applied to weight the selected sustainability elements and sub elements. Afterward, fuzzy inference system is used to evaluate the sustainability level of concrete manufacturing processes. The practicality and applicability of the proposed approach are examined by conducting sustainability assessments of four different concrete manufacturing processes: (1) 100% of Portland cement (2) 35 % slag cement and 65% Portland cement (3) 50% slag cement and 50% Portland cement (4) 20% fly ash and 80% Portland cement. The results disclose the more sustainable concrete manufacturing process which is 50 % of Slag cement and 50% Portland cement.

A Desktop Application for Sustainability Performance Assessment of Composed Unit-Based Manufacturing Systems

2017 ◽  
Author(s):  
Matteo M. Smullin ◽  
Zahra Iman ◽  
Karl R. Haapala
Keyword(s):  
Manufacturing Process ◽  
Manufacturing Systems ◽  
Sustainability Assessment ◽  
Information Modeling ◽  
Process Models ◽  
System Level ◽  
Manufacturing Processes ◽  
Modeling Framework ◽  
Process Flow ◽  
Desktop Application

Life cycle assessment software packages such as SimaPro, GaBi, and Umberto have become well-established tools for conducting environmental impact analysis. However, applications for broader sustainability assessment are limited. Recent research has developed an information modeling framework to compose models of unit manufacturing processes for sustainability assessment and has led to the definition of unit manufacturing process information modeling concepts. An engineer can use the framework to conduct manufacturing system-level sustainability assessments by composing models of unit manufacturing processes. Assessment results can aid engineers in selecting the superior manufacturing process flow for a given product. To demonstrate usefulness of the information framework, a prototype desktop application has been developed. The application was implemented in Windows Project Foundation (WPF) using C# as the coding language to create a graphical user interface. Mathworks MATLAB serves as the calculation engine. Unit manufacturing process models follow the framework and are read by the application, which produces a sustainability assessment for the manufacturing process flow. A manufacturing process flow for an automobile-like metal product acts is used to demonstrate the software application.

scholarly journals Life Cycle Sustainability Assessment of a Novel Bio-Based Multilayer Panel for Construction Applications

Resources ◽  
2021 ◽  
Vol 10 (10) ◽  
pp. 98
Author(s):  
Aitor Barrio ◽  
Fernando Burgoa Francisco ◽  
Andrea Leoncini ◽  
Lars Wietschel ◽  
Andrea Thorenz
Keyword(s):  
Life Cycle ◽  
Social Life ◽  
Sustainability Assessment ◽  
Pilot Scale ◽  
Social Life Cycle Assessment ◽  
Manufacturing Processes ◽  
Ozone Formation ◽  
Life Cycle Sustainability Assessment ◽  
Material Consumption ◽  
Social Standards

The bioeconomy can be integral to transforming the current economic system into one with reduced environmental and social impacts of material consumption. This work describes a bio-based multi-layer panel that is based on residual coniferous bark. To ensure that the presented bio-based panel positively contributes to environmental protection while remaining competitive with conventional products and meeting high social standards, the development of the panel is accompanied by a life cycle sustainability assessment. This study performs a comparative LCA and LCC of the developed panel to conventional benchmark panels, as well as a qualitative social life cycle assessment. While the panel performs only economically marginally weaker than the benchmarks, the results are more heterogeneous for the environmental dimension with benefits of the bio-based panel in categories such as climate change, acidification, and ozone formation and detriments in categories including eutrophication. The S-LCA analysis shows that all of the involved companies apply social principles in direct proximity; however, social responsibility along the supply chain could be further promoted. All results need to be viewed with the caveat that the manufacturing processes for the new panel have been implemented, to date, on a pilot scale and further improvements need to be achieved in terms of upscaling and optimisation cycles.

scholarly journals Application of Multi-criteria Approach for Sustainability Assessment of Manufacturing Processes

2016 ◽  
Vol 7 (3) ◽  
pp. 62-78 ◽  
Author(s):  
Aldona Kluczek
Keyword(s):  
Sustainability Assessment ◽  
Expert Knowledge ◽  
Assessment Method ◽  
Manufacturing Processes ◽  
Baseline Scenario ◽  
Limited Information ◽  
Analytical Technique ◽  
Systematic Improvement ◽  
Hierarchy Process

Abstract The paper is to present a multi-criteria approach for sustainability assessment of manufacturing processes, which can be applied to carry out the sustainability assessment of manufacturing processes requiring less detailed data, time, and expert knowledge, but still providing a company-level analysis. The analytical hierarchy process method is used to determine ranking of simple and relevant activity areas for manufacturing processes in terms of sustainability objectives. Analytical technique is also employed to assess the degree of sustainability in manufacturing due to limited information which appear to be a characteristic of the case study presented. One goal of sustainability characterization methodology is to improve the manufacturing sustainability performance. Similar to the baseline scenario, sustainability reevaluation for sustainability improvement is also applied and discuses performance profile at the process level. This approach seems particularly useful when comparing different processes. It makes applicable for various industries and might be a challenge to derive priorities for systematic improvement. The applicability and usability of the proposed assessment method was verified by the case study in company producing heating devices.

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