An environmental impact analysis method of machine-tool cutting units based on LCA

Abstract

Purpose

The purpose of this paper is to present a method for the environmental impact analysis of machine-tool cutting, which enables the detailed analysis of inventory data on resource consumption and waste emissions, as well as the quantitative evaluation of environmental impact.

Design/methodology/approach

The proposed environmental impact analysis method is based on the life cycle assessment (LCA) methodology. In this method, the system boundary of the cutting unit is first defined, and inventory data on energy and material consumptions are analyzed. Subsequently, through classification, five important environmental impact categories are proposed, namely, primary energy demand, global warming potential, acidification potential, eutrophication potential and photochemical ozone creation potential. Finally, the environmental impact results are obtained through characterization and normalization.

Findings

This method is applied on a case study involving a machine-tool turning unit. Results show that primary energy demand and global warming potential exert the serious environmental impact in the turning unit. Suggestions for improving the environmental performance of the machine-tool turning are proposed.

Originality/value

The environmental impact analysis method is applicable to different machine tools and cutting-unit processes. Moreover, it can guide and support the development of green manufacturing by machinery manufacturers.

Citation

Shi, J., Hu, J., Ma, M. and Wang, H. (2021), "An environmental impact analysis method of machine-tool cutting units based on LCA", Journal of Engineering, Design and Technology, Vol. 19 No. 5, pp. 1192-1206. https://doi.org/10.1108/JEDT-06-2020-0247