Aplicação do ciclo PDCA para redução de defeitos de qualidade: estudo de caso em uma indústria de papelão ondulado

Abstract

Currently, providing quality products has ceased to be a competitive advantage for companies. Meeting the needs and desires of customers has become a key element for organizations in the market. The quality of a product is no longer an added value but rather an essential requirement. In this context, we observe the growing demand from customers, who are increasingly adopting a "zero defects" mentality.

In light of this, the study in question was initiated with a focus on reducing the rate of non- conforming products, evidenced by the increase in the overall factory rejection indicator,

through the PDCA cycle based on the continuous improvement methodology.

The purpose of this work is to present, in an intuitive and detailed manner, a practical example of executing the PDCA cycle (Plan, Do, Check, and Act) in conjunction with quality management tools such as Pareto Chart, Ishikawa Diagram, 5 Whys, and 5W1H, with the aim of reducing variability and improving the production process. After the project's execution, the results demonstrate a more precise identification of the root cause of the problem, providing guidelines to monitor the implementation of actions, thus demonstrating the effectiveness of PDCA. With these values, there has been a significant improvement in the quantity of rejected products monthly, thereby contributing to customer satisfaction.