Study of failure mode, effect and Criticality Analysis

As machining tool systems become increasingly more complicated, the improvement of system scale and functions, increases the probability of system failure. To avoid human injuries caused by system failure, improve system reliability, and enhance the management of system failure and risk control, reliability analysis technology, called FMECA, has been applied many industries since the 1950s. This paper, first, introduces a brief history of FMECA and the current international standard. Second, the core concept and implementation procedure of FMECA will be presented. Finally, the advantages and disadvantages of FMECA and conclusions are provided.