Abstract
Improving resource efficiency and reducing waste discharge are the inevitable trends of the development of sustainable machining system. Therefore, a data-driven sustainability evaluation method of machining system is proposed. The input (energy, materials, equipment, R&D, and services) and output (wastes and products) data of machining system are collected. These dimensional data are processed by emergy. The emergy flow calculation model of the machining process is established for data modeling, and the sustainability evaluation index of machining system is constructed for data analysis. Finally, an engine base machining process is taken as a case study for innovative practice, and the targeted process optimization is adopted based on its sustainability evaluation for innovative practice. The feasibility and effectiveness of the method are verified. This study provides theoretical and methodological support for promoting the sustainability of the manufacturing industry.
Highlights
Machinery manufacturing is one of the pillars of human wealth creation
The emergy flow calculation model of the machining process is established for data modeling, and the sustainability evaluation index of machining system is constructed for data analysis
An engine base machining process is taken as case study for innovative practice; and the targeted process optimization is adopted based on its sustainability evaluation for innovative practice
Summary
Machinery manufacturing is one of the pillars of human wealth creation. its manufacturing process consumes a large amount of resources and generates a lot of waste, which is one of the main causes of the current global serious environmental problems [1]. The Environmental Performance Index reveals a strong possibility of the industrial application of Nano fluids in machining with the sustainability-based performance evaluation [10]. Energy-efficient machining is an effective way of sustainable production in current manufacturing industry [14]. A method to improve the productivity and precision of titanium alloy parts is proposed for promoting sustainable ultra-precision manufacturing [18]. Economic and environmentally friendly methods to improve the machinability of titanium and its alloys have been proposed by Gupta [19]. These studies show that process, cost and environmental benefits of sustainable machining are the focus of attention [20, 21]. They have promoted the development and application of sustainable machining and achieved good results
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