Enhancing production line performance through an integrated OEE-FMEA model: a case study at Hoa Sen Nghe An

This study introduces an integrated methodology, combining Overall Equipment Effectiveness (OEE) and Failure Mode and Effects Analysis (FMEA), to enhance operational performance within the NOF1 production line at Hoa Sen Nghe An Co., Ltd. Production efficiency was quantified using the OEE framework across Availability, Performance, and Quality metrics, while failure modes were identified and prioritized via PFMEA and DFMEA, adhering to the AIAG & VDA 2022 standard. The methodology aligned quantitative performance data with structured risk analysis to formulate targeted corrective actions, addressing root causes based on Action Priority (AP) levels. Post-intervention analysis demonstrated a 6.6% improvement in OEE and a 67.6% reduction in defect rates. These results validate the efficacy of the integrated OEE-FMEA model as a proactive, data-driven strategy for optimizing equipment utilization, minimizing downtime, and improving product quality within the coated steel manufacturing sector.