Implementação da carta CEP para melhoria na qualidade da produção de motores em uma indústria do ramo automobilístico

Abstract

Ensuring that products are suitable for use and meet customer expectations is one of the main objectives of companies seeking to ensure quality from end to end in production. In the production of automotive engines, sometimes quality breakdown can be related to divergence in the torques applied, causing waste, economic losses, and impacts on product reliability, impacting the satisfaction index of its customers. This work presents the objective of developing a methodology to record, control and analyze the torques applied to bolts for component fixing in the production of engines in an automotive company in the interior of the state of Rio de Janeiro. The applied methodology was based on Statistical Process Control (SPC) concepts, with the creation of a standard Control Chart model and by the definition of a torque trend analysis method, with the purpose of organizing the collected data and identifying the potential causes that can lead the process to get out of control. The analyses will contribute to predict and prevent defects, making it possible to create action plans before nonconformities occur. The initial implementation was carried out using retroactive data to validate the methodology and the result was satisfactory, proving to be efficient. The expectations of the final implementation of the project are the improvement in product quality, reduction of costs generated by defects, and increased customer satisfaction.