The document summarizes a study on performing a Process Failure Mode and Effect Analysis (FMEA) on an end milling process. The researchers conducted multiple end milling trials and identified several potential failure modes and their effects. They assigned severity, occurrence, and detection ratings to each failure mode and calculated Risk Priority Numbers. The failure mode with the highest RPN, which was chip packing, was further analyzed to identify causes and recommend preventive measures like adjusting feed or speed. The FMEA provides a guide to prevent failures and improve the effectiveness of end milling operations.