Método para garantia da qualidade no desenvolvimento de produtos de baixa escala junto à cadeia de fornecedores da indústria automotiva

Abstract

In a scenario of frequent changes in the form of consumption, the execution of efforts in the development of new products and services is a strategic and necessary factor to continue acting in the market, meeting the customer necessities with speed and assertiveness. The majority of institutions requires the involvement of suppliers through the development of a product or service and require standard reliability tests for most of the products. However, some sectors operate in low-scale production contexts, which makes the application of such methods unfeasible. According to this scenario, with the purpose of developing a method to guarantee quality in the development of low-scale products in the automotive industry with the supply chain. It was used the action research method to structure how to solve this practical problem. After mapping the current process used by an automotive company and identifying the bottles that makes impossible the application for low-scale production, it was sought in the existing literature methods of statistical validation for low-scale processes. The combined implementation of the individual and moving range chart and cumulative sum, Shapiro Wilk normality test and capacity index calculation of Cp, Cpk and Cpc with their respective confidence interval, reveals the quality of a process with a minimum reliability level even for a low-scale development scenario. Results were obtained, as the determination of a minimum capacity index of 1.33 to 12 samples with 90% confidence, in addition to detecting anomalies in the process monitoring. This work, in addition to developing the method, also generated an artifact in the form of an electronic spreadsheet, which allows other companies, not so familiar with the calculations, to use it in their studies. As a suggestion for future studies, the application of the method to other markets other than automotive, provide criteria for the definition of stability required for the validation of the process and perform an analysis of a model for the sequencing of activities to be applied to the supply chain in structuring a method with a focus on increasing the quality of supply. [resumo fornecido pelo autor]