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Sustainability evaluation of additive manufacturing processes using grey-based approach

Sustainability evaluation of additive manufacturing processes using grey-based approach Sustainable manufacturing facilitates the development of products with lower environmental impact. Additive manufacturing (AM) processes are incorporated with sustainable characteristics such as minimum material consumption, energy efficiency and minimum transportation. The purpose of this paper is to report a study on sustainability evaluation of AM process using a grey-based approach.Design/methodology/approachSustainable AM process is gaining importance. From this viewpoint, this paper presents the evaluation of sustainability of AM process. The evaluation model includes 3 enablers, 18 criteria and 54 attributes. Grey-based approach is used for sustainability evaluation. Expert inputs are used for computing the grey index. Expert inputs are obtained and they are aggregated at three levels to calculate the overall grey performance index, which indicates sustainability level of AM processes. Furthermore, weaker areas are identified through determination of grey performance importance index (GPII) values.FindingsThe calculated grey index is (3.510, 16.177), which implies that AM process is sustainable. Weaker attributes are determined on the basis of the computation of GPII values.Practical implicationsThe study has been executed on the basis of the opinion from experts with practical experience. Hence, the inferences are found to be practically feasible. The identified weaker attributes from the study would enable the manufacturers and practitioners to focus more on weaker areas for enhancing the sustainability of AM processes. The study has made an evaluation from sustainability perspective of AM processes, which would enable practitioners to assess AM processes from TBL sustainability orientation.Originality/valueThe development of sustainability evaluation model and application of a grey-based approach for assessment of AM process are the original contributions of this study. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Grey Systems: Theory and Application Emerald Publishing

Sustainability evaluation of additive manufacturing processes using grey-based approach

Grey Systems: Theory and Application , Volume 10 (4): 20 – Oct 16, 2020

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Publisher
Emerald Publishing
Copyright
© Emerald Publishing Limited
ISSN
2043-9377
DOI
10.1108/gs-08-2019-0028
Publisher site
See Article on Publisher Site

Abstract

Sustainable manufacturing facilitates the development of products with lower environmental impact. Additive manufacturing (AM) processes are incorporated with sustainable characteristics such as minimum material consumption, energy efficiency and minimum transportation. The purpose of this paper is to report a study on sustainability evaluation of AM process using a grey-based approach.Design/methodology/approachSustainable AM process is gaining importance. From this viewpoint, this paper presents the evaluation of sustainability of AM process. The evaluation model includes 3 enablers, 18 criteria and 54 attributes. Grey-based approach is used for sustainability evaluation. Expert inputs are used for computing the grey index. Expert inputs are obtained and they are aggregated at three levels to calculate the overall grey performance index, which indicates sustainability level of AM processes. Furthermore, weaker areas are identified through determination of grey performance importance index (GPII) values.FindingsThe calculated grey index is (3.510, 16.177), which implies that AM process is sustainable. Weaker attributes are determined on the basis of the computation of GPII values.Practical implicationsThe study has been executed on the basis of the opinion from experts with practical experience. Hence, the inferences are found to be practically feasible. The identified weaker attributes from the study would enable the manufacturers and practitioners to focus more on weaker areas for enhancing the sustainability of AM processes. The study has made an evaluation from sustainability perspective of AM processes, which would enable practitioners to assess AM processes from TBL sustainability orientation.Originality/valueThe development of sustainability evaluation model and application of a grey-based approach for assessment of AM process are the original contributions of this study.

Journal

Grey Systems: Theory and ApplicationEmerald Publishing

Published: Oct 16, 2020

Keywords: Practical applications of grey models; Grey numbers and its operations

References