ABSTRACT
Design FMEA is a reliability tool that, among many functions, helps define, identify, prioritize and eliminate known or future failures of the system, subsystem or component. In essence it facilitates avoidance of failures. The purpose of the DFMEA is to perform a risk analysis of all reasonable design flows of the proposed product prior to manufacturing. Identifies potential failure modes, causes, and effects. Inputs come from the DFMEA and process flow diagram. Identifies key inputs that positively or negatively affect the quality, reliability, and safety of a product or process. After completion of the process flow diagram and prior to tooling for production. Quite often the information from the DFMEA and or the PFC may not be available at the time of starting the PFMEA, which may cause some difficulties, but it should not be the reason for not doing a PFMEA. Acomprehensive documentation of product/process characteristics, process controls, tests, and measurement systems that will occur during mass production.
