FMEA
Transcript: Bre Lockett Maria Rinaldi Emphasize problem prevention Documents risk and actions taken to reduce risk Provide focus for improved testing and development Minimizes late changes and associated cost Catalyst for teamwork and idea exchange between departments EXAMPLE Focuses on potential failure modes for a process within a system A process is defined as an organized sequence of tasks which create a product or service In automotive manufacturing, a process can involve fabrication, assemble, painting, cleaning, or transportation of a part Goal is to minimize process-based failures and variations around the design parameters Benefits Of An FMEA Improve product/process reliability and quality Increase customer satisfaction Early identification and elimination of potential product/process failure modes Prioritize product/process deficiencies Capture engineering/organization knowledge Detection Scale (From Northrup Grumman) Focuses on failures regarding the functions of a part or component Used to analyze and improve individual components Specific hardware components must be defined in order to perform a DFMEA Should have an extensive progression through all important factors When done correctly can reduce process development time by preventing the need for corrective actions down the line Michael Cooper Alex Kandra ode RPN = Severity x Occurrence x Detection Severity, Occurrence, and Detection are all values determined by a defined scale (usually 0-10) Can be used to compare risks of failure modes associated with the same process/part Can be used to determine risk reduction of a corrective action applied to a specific failure mode SHOULD NOT be used to compare risks of different processes/parts Define, identify, & prioritize known and/or potential failures before they reach the customer Help eliminate faliure modes and/or reduce their risks Invites a well developed dialogue about a part or process Promotes efficiency Failure Mode - A concise description of how a part, system, or manufacturing process may potentially fail to perform its function Failure Mode "Effect" - A description of the consequence of a system or part failure. A typical failure mode may have several "effects" Risk Priority Number (RPN) Process FMEA A normalized process that is used to establish a relative ranking system of hypothesized failure modes Popular in many different fields of manufacturing and design Can be broken down into different specializations Process Design Team of engineers identifies possible failure modes Uses a rating system, RPN, to quantify risk, asses priority, and calculate improvement Corrective actions are implemented as a direct result of the FMEA Must be conducted before a new process is introduced or an existing process is modified Analysis is applied to each individual machine and function within the process Process failures can affect product quality, process reliability, customer satisfaction, and personal safety What Is An FMEA? Process FMEA (cont.) Design FMEA Office of manned space flight: Apollo Program RA-006-013-1A Northrop Grumman Corporation, Integrated Systems Gavin Robbins Consulting Ltd 2013 AIAG The catalyst for Peak Performance Failure Modes and effects analysis by Kenneth Crow http://www.isixsigma.com/tools-templates/fmea/fmea-preventing-failure-any-harm-done/ http://quality-one.com/fmea/design-fmea/ http://www.npd-solutions.com/fmea.html http://www.sixsigmaonline.org/six-sigma-training-certification-information/articles/six-sigma-and-dfmea-%28design-failure-mode-and-effect-analysis%29-work-together.html http://www.qualitytrainingportal.com/resources/fmea/fmea_dfmea_or_pfmea.htm http://www.isixsigma.com/topic/process-fmea-vs-design-fmea/ http://www.differencebetween.net/technology/difference-between-dfmea-and-pfmea/ http://sixsigmatutorial.com/fmea-tutorial/395/ http://www.ihi.org/resources/Pages/Measures/RiskPriorityNumberfromFailureModesandEffectsAnalysis.aspx Importance Of Performing An FMEA Occurrence Scale (From Northrup Grumman) nalysis Why Do An FMEA? Severity Scale (From Northrup Grumman) Important Terminology ailure F M E A Timeline of the FMEA Benefits Of An FMEA (cont.) How Does An FMEA Work? Process/Design ffect Sources