Multi-criteria Decision-Making in Sustainable Manufacturing: Green Strategies Analysis in the Automotive Industry

The sustainable manufacturing represents a sustainable development model whose main objective is to minimize waste and pollution by promoting the extension of the useful life of materials through reuse, recovery, repair, and recycling. The importance of strategic decisions in industrial environments to achieve the circular economy is emphasized, highlighting the usefulness of multi-criteria methodologies. In this scenario, a multi-criteria model using the Analytic Hierarchy Process (AHP) method was developed to evaluate sustainable manufacturing strategies in the automotive industry, specifically in the painting section. Strategic alternatives included using water-based paints, robotization, and alternative energy sources to reduce resources and waste. The results obtained allowed the establishment of a classification for the sustainable manufacturing strategies to be applied in the painting section, helping the company to understand the impact of these measures in promoting sustainability. A sensitivity analysis of the results obtained through the AHP method was also performed, which allows us to understand the amplitudes of variation necessary for the positions to change.