文档介绍：Process FMEA Introduction
These are extracts from
POTENTIAL FMEA REFERENCE MANUAL.
Overview
This manual introduces the topic potential Failure Mode and Effects Analysis (FMEA). An FMEA can be described as a systemized group of activities intended to:
Recognize and evaluate the potential failure of a product/ process and its effects,
Identify actions which could eliminate or reduce the chance of the potential failure occurring, and
Document the process.
It plementary to the design process of defining positively what a
design must do to satisfy the customer.
re
History
Although engineers have always performed an FMEA type of analysis on their designs and manufacturing processes, the first formal application of the PMEA discipline was an innovation of the aerospace industry in the mid-1960s.
FMEA Implementation 1
Because of pany’mitment to continually improve its products whenever possible, the need for using the FMEA as a disciplined technique to identify and help eliminate potential concern is as important as ever.
Although responsibility for the “preparation” of the FMEA must, of necessity, be assigned to an individual, FMEA input should be a team effort. A team of knowledgeable individuals should be assembled; ., engineers with expertise in Design, Manufacturing, Assembly, Service, Quality, and Reliability.
FMEA Implementation 2
One of the most important factors for the essful implementation of an FMEA program is timeliness. It is meant to be a “before-the-event” action, not an “after-the-fact” exercise. To achieve the greatest value, the FMEA must be done before a design or process failure mode has been unknowingly designed into the product.
Up front time spent in doing prehensive FMEA well, when product/ process changed can be most easily and inexpensively implemented, will alleviate late change crises. An FMEA can reduce or eliminate the chance of implementing a corrective change which could create an even larger concern. Properly applied, it is