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O pera t io n N um berPr o d uct /P ro c e s sC hara c t e r is t i cInco min g So urce so f V a r ia t ionPFM E AC on t r o l P la nVa ria t io n C la s sW o rk In s t ru c t io nsProcess Flow Diagrams ? Updated after production trial run. ? Need to indicate special characteristics generated at each step. ? Completed Along with Control Plan (APQP Process). ? Generally contains same information as process traveler. Process Flow Diagram Example APQP Links to PFMEA W o rk In s t ru c t io nsPFM E AC han ge i n d e t e c t io nC han ge i n o c c u r e n c eC han ge i n se v e ri t yC on t r o l P la nD e s ign Ch a ng e O t h e r A c t io nororororProcess FMEA ? Must follow flow of the process flow diagram. ? Must include ALL process special characteristics (as a minimum). How a PFMEA Works ? Where does the data for the PFMEA e from? ? What types of people are a part of the PFMEA team? ? What types of activities should we spend a lot of time on? PFMEAs/Control Plans and 8Ds During APQP ? PFMEAs should be driven by real data, including 8Ds (internal and external), warranty and returned part analysis ? PFMEAs should be pleted by process experts and should be a driver of the control plans and work instructions ? Work instructions (Post control log, process parameter logs, preventive maintenance, etc.) implement the control plan in the process ? When there is a quality problem there is an opportunity to improve the control plan and the work instructions APQP Links to Control Plan F i r s t/ L a s t Pi e c eM i s ta k e Pr o o fi n gC o n tr o l Pl a nP/ M C h e c k l i s tQ u a l i ty C h e c k l i s tControl Plans ? Includes product and process special characteristics. ? Includes SPC requirements. ? Follows flow of process flow chart and PFMEA. ? May require customer approval. Types of Control Plans ? Prototype build control plan(s) ? Prelaunch control plan ? Production control plan Prototype Build Control Plan ? A description of the dimensional measurements. ? Material tests – Functional tests that will occur during prototype build. Prelaunch Control Plan ? Description of dimensional measurements, materials, and functional tests. ? Adds additional product and process controls. ? Purpose is to contain potential nonconformities utilizing: – More frequent inspections and/or tests.