Eliminating Scraps in Refrigerator Door Sealing—A Six Sigma Case Study

This paper applies the Six Sigma method to an investigation and analysis of the factors contributing to sealing problems encountered in a refrigerated appliance model. By adopting a rigorous and systematic approach, the Six Sigma method relies on the use of advanced statistical and analytical tools to minimize variability and optimize processes. By utilizing the Six Sigma methodology, this work not only identifies and remedies sealing-related problems, but also contributes to a robust and efficient manufacturing process. The proposed methodology adopts the DMAIC approach and its associated tools to evaluate the impact of waste on the production process. This study aims to demonstrate how the DMAIC approach can effectively assist the company in minimizing scrap. Furthermore, detailed recommendations regarding the application and implementation of DMAIC tools are provided, enabling the company to thoroughly assess its existing processes. These insights will empower the company to identify areas for improvement and implement strategies for ongoing enhancement and operational excellence.