Failure Mode and Effect Analysis

Description
FMEA is a preventive measure to systematically display the causes, effects and possible actions regarding observed failures.

Collected by Dr. K. BARANIDHARAN [email protected]

2/5/2013

Sri Sairma Institute of Technology - Chennai

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Failure Mode and Effect Analysis

FMEA
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Meaning

• It is a preventive measure to systematically display the causes, effects and possible actions regarding observed failures.
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FMEA an engineering technique use to define, Identify and Eliminate known and / or potential failures, problems, erors which occur in the stystem, design, process and service “before they reach the customer”.
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FMEA is “before-the-event” action and is done when existing system/products/processes are changed or redesigned

2/5/2013

Sri Sairma Institute of Technology - Chennai

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FMEA

is a never-ending-process improvement tool

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Sri Sairma Institute of Technology - Chennai

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objective
• The objective of FMEA is to anticipate failures and prevent them from occurring. FMEA prioritizes failures and attempts to eliminate their causes
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Types
• 1.System FMEA:• Analyzes components, subsystem and main system in early stage of design. • 2.Design FMEA:• Analyzes the products/parts before they are released to manufacturing.
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• 3.Process FMEA:• Focuses on manufacturing and assembly processes. • 4.Service FMEA:• Analyzes services industry proceses before they are released to impact the customer. And Equipment,Maintenance, Concept FMEA,
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Types

5.Environmental FMEA
• However, in practice, all the above types can be broadly categorised into two types….. • 1.Design FMEA involves the analysis of the potential failures of product or service due to component or subsystem unreliablility. • 2.Process FMEA -Manufacturing process-The Process FMEA is used primarily to identify areas of critically of control and to emphasize the design and more reliable process – It may be noted the equipment,service, and environmental FMEA are slightly modified versions of process FMEA
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