Troubleshoot and Root Cause Analysis of CNC Machine Failures Using FMEA Tool in Terms of Reliability Maintenance

Abstract

This paper aims to identify the root causes of failures in Computer Numerical Control (CNC) machines and analyze them using the Failure Mode and Effects Analysis (FMEA) technique in the modern automotive industry. CNC machines play a crucial role in manufacturing by ensuring high precision, efficiency, and repeatability. However, frequent failures result in significant downtime, reduced productivity, and increased maintenance costs. This study adopts a systematic approach by integrating Root Cause Analysis (RCA) with FMEA to identify critical failure modes and assess their impact. The associated risks are evaluated using the Risk Priority Number (RPN) method, enabling prioritization of failure modes. Based on the findings, appropriate corrective actions are proposed to improve machine reliability, minimize operational disruptions, and enhance overall efficiency in manufacturing processes.