Analisis Pengendalian Kualitas pada Proses Pengecatan Valve dengan Menggunakan Metode DMAIC pada Produsen Komponen Valve

Abstrak

Research object is a manufacturing company engaged in the production of industrial valves. In its production process, the company faces problems in the painting process, where the number of defective products still exceeds the set quality tolerance threshold, which is 3%. This study aims to identify the most dominant types of painting defects and analyze the causative factors. The method used in this study is DMAIC (Define, Measure, Analyze, Improve, Control) and FMEA (Failure Mode and Effect Analysis) tools to determine the potential for failure that has an impact on quality. Based on the results of the analysis, it was found that the most dominant type of defect was cracked paint with a percentage reaching 44%, which was caused by the use of suboptimal painting equipment and lack of cleanliness and maintenance of tools such as spray guns, hoses, and compressors. Another factor is the lack of supervision from the party responsible for the production process. As a solution for improvement, this study recommends two main actions, namely: (1) Preparation of a daily checklist to ensure the condition of the painting equipment is maintained before and after use, and (2) Implementation of a training program for painting operators to improve understanding of standard procedures and equipment maintenance. By implementing these recommendations, it is expected that the level of defects in the painting process can be minimized so that the quality of the final product is more guaranteed.