過程失效模式及后果分析(pfmea)(ppt61)中英文(3)(編輯修改稿)

　

【文章內(nèi)容簡介】 modes 列出可能的過程失效模式PFMEA 6. Derive the potential effects of each failure 列出每一失效模式的所有可能后果w The ramifications of failure后果是失效模式的衍生事件 w The effect can be on ，可能影響Ethe ultimate customer，最終用戶Eor intermediate customer (OEM, etc.)，中間用戶Ea government regulation ，法規(guī)Ethe next process step，下序PFMEAw Customer plaints are a useful source of information顧客抱怨是非常有用的信息來源6. Derive the potential effects of each failure 列出每一失效模式的所有可能后果PFMEAw An effect can be，后果可能為 Eplete loss of function，功能完全喪失 Edegradation of performance or quality，質(zhì)量或性能降低Edamage of process equipment，設(shè)備受損Einjury to an operator，員工受傷Eshutdown of an assembly line，停線6. Derive the potential effects of each failure 列出每一失效模式的所有可能后果PFMEAw Effects of failure often show up as a chain of events, from immediate effect to the ultimate effect on the customer，失效的后果通常表現(xiàn)為從對顧客的直接影響到最終影響等一系列連鎖反應(yīng)w It is remended that these chains be developed for each failure mode and recorded on the FMEA form 建議針對每一種失效模式找出這些連鎖反應(yīng)，并記錄在FMEA表上Euse a tree diagram運用樹形圖6. Derive the potential effects of each failure 列出每一失效模式的所有可能后果PFMEAEffects on the process，對過程的影響 :w 910 may endanger machine or operator，可能導(dǎo)致設(shè)備或人員受損w 68 scrap，報廢w 45 sort and rework，檢驗、返工w 23 rework online，線上返工w 1 no effect，無影響consider also the effects on the customer還要考慮對顧客的影響還要考慮對顧客的影響7. Assess the severity of each effect評估每種后果的嚴重度PFMEACriteria: Severity of EffectThis ranking results when a potential failure mode results in a final customer and/or a manufacturing/assembly plant defect. The final customer should always be considered first. If both occur, use the higher of the two sev　 Hazardouswithout warning10 Very high severity ranking when a potential failure mode affects safe vehicle operation and/or involves nonpliance with government regulation without warning.Or may endanger operator (machine or assembly) without warning.　 Hazardouswith warning9 Very high severity ranking when a potential failure mode affects safe vehicle operation and/or involves nonpliance with government regulation with warning.Or may endanger operator (machine or assembly) with warning.　 Very High8 Vehicle/item inoperable (loss of primary function). Or 100% of product may have to be scrapped, or vehicle/item repaired in repair department with a repair time greater than one hour.　 High7 Vehicle/item operable but at a reduced level of performance. Customer very dissatisfied. Or product may have to be sorted and a portion (less than 100%) scrapped, or vehicle/item repaired in repair department with a repair time between a halfhour and an one hour.　 Moderate6 Vehicle/item operable but Comfort/Convenience item(s) inoperable. Customer dissatisfied. Or a portion (less than 100%) of the product may have to be scrapped with no sorting, or vehicle/item repaired in repair department with a repair time less than a halfhour.　 Low5 Vehicle/item operable but Comfort/Convenience item(s) operable at reduced level of performance. Or 100% of product may have to be reworked, or vehicle/item repaired offline but does not go to repair department. 　 Very Low4 Fit Finish/Squeak Rattle item does not conform. Defect noticed by most customers (greater than 75%). Or the product may have to be sorted, with no scrap, and a portion (less than 100%) reworked.　 Minor3 Fit Finish/Squeak Rattle item does not conform. Defect noticed by 50% of customers. Or a portion (less than 100%) of the product may have to be reworked, with no scrap, online but outofstation.　 Very Minor2 Fit Finish/Squeak Rattle item does not conform. Defect noticed by discriminating customers (less than 25%). Or a portion (less than 100%) of the product may have to be reworked, with no scrap, online but instation.　 None1 No discernible effect. Or slight incovenience to operation or operator, or no effect.