A Suitable Solution Approach to Reduce Waste in the Manufacturing Process of Automotive Turn Signal Products Using Pareto Chart and Cause-and-Effect Diagram

Abstract

In the manufacturing industry, losses or defects in production processes directly affect product quality, costs, and customer satisfaction. Identifying problems and analyzing root causes are crucial steps that enable effective planning and improvement. This research focuses on analyzing and solving issues in the production line of automotive turn signal circuit boards, which are essential components in the automotive industry. Pareto Analysis was employed to identify the most impactful defects, and the Fishbone Diagram was used to analyze the root causes leading to these problems. The study revealed that Pareto Analysis effectively pinpointed the most critical defects in the production process, such as circuit connection errors or surface coating issues. The Fishbone Diagram further identified related causes, including raw material quality, faulty machinery, and limitations in workforce skills. Based on this analysis, the research proposed appropriate solutions, such as improving raw material inspection processes, implementing preventive maintenance for machinery, and providing worker training programs. This research is significant in enhancing quality, reducing production losses, and minimizing costs. It also establishes guidelines that can be applied to other industries. By using internationally recognized tools, this study not only contributes to improving competitiveness in the automotive industry but also adds value to the overall.