Productive and environmental performance indicators analysis by a combined LCA hybrid model and real-time manufacturing process monitoring: A grinding unit process application

摘要: Abstract Among machining processes, grinding has been used to achieve high dimensional tolerances and surface quality on workpieces. Yet, levels of energy expenditure per volume removed material the need for cutting fluids make one most environmentally impactful processes. Furthermore, changes in parameters such as grain bond specifications wheel, speed, specific removal rate can lead different productive environmental results. Thus, analysis processes should not be aggregated leveraged into a single broad output parameter. Instead, comprehensive study performed, which relevant process parameters, inputs outputs are considered. This paper presents detailed process, including characterization machine subunits production modes, along with use combined life cycle assessment hybrid model real-time monitoring system evaluate consumption energy, tooling, fluid compressed air. A cradle-to-gate using eleven impact categories performance were performed effects varying wheel type. For equal values rate, change from conventional cubic boron nitride represented power requirement increase 19–24%. Cubic achieved remarkably better results wear part roughness indicators all tested conditions. The showed strict relation between impacts electric fluid. To conclude, despite higher requirements, combination optimizes both