Análise de viabilidade técnica e econômica da implementação de junta de vedação no processo de mascaramento de motores orbitais

Abstract

This study presents a technical and economic feasibility analysis of implementing a sealing gasket in the masking process of orbital motors, which consists of positioning a metallic mask on the coupling flange of the part, aiming to eliminate infiltration of nanoceramic material, reduce rework, and optimize productivity. The methodology included waste mapping, project requirements definition, gasket geometry development, prototype manufacturing, and in-line testing with a sample of 500 units. Rubber and silicone gaskets with thicknesses of 2 mm and 3 mm were evaluated considering approval rate, durability, and cost per cycle. Results showed that silicone gaskets achieved superior performance, with approval rates above 97%, low failure rates, and higher lifespan, reducing batch costs by approximately 65% compared to natural rubber. The economic analysis demonstrated an estimated annual savings of 57% in direct process costs, with a positive balance of R$ 11,082.50 after implementation costs. Additionally, the total process time was reduced by 60 seconds per unit, equivalent to 1.5 hours per day, simplifying the production flow and increasing operational efficiency. It is concluded that the proposed solution is technically effective, economically viable, and sustainable, recommending its large-scale application.