03807-PFMEA 表单.xls

six sigma consultants, 1996 pfmea information sheet pfmea number: process name: process responsibility: prepared by: affected product(s): pfmea key date: pfmea origination date: pfmea revision date: core team members: potential failure modes and effects analysis (information sheet) six sigma consultants, 1996 pfmeapage 2 # process function (step) potential failure modes (process defects) potential failure effects (ys) s e v c l a s s potential causes of failure (xs) o c c current process controls d e t r p n recommend actions responsible person & target date taken actions s e v o c c d e t r p n 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 six sigma consultants, 1996 pfmeapage 3 # process function (step) potential failure modes (process defects) potential failure effects (ys) s e v c l a s s potential causes of failure (xs) o c c current process controls d e t r p n recommend actions responsible person & target date taken actions s e v o c c d e t r p n 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 six sigma consultants, 1996 pfmeapage 4 # process function (step) potential failure modes (process defects) potential failure effects (ys) s e v c l a s s potential causes of failure (xs) o c c current process controls d e t r p n recommend actions responsible person & target date taken actions s e v o c c d e t r p n 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 six sigma consultants, 1996 pfmeapage 5 # process function (step) potential failure modes (process defects) potential failure effects (ys) s e v c l a s s potential causes of failure (xs) o c c current process controls d e t r p n recommend actions responsible person & target date taken actions s e v o c c d e t r p n 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 six sigma consultants, 1996 pfmeapage 6 # process function (step) potential failure modes (process defects) potential failure effects (ys) s e v c l a s s potential causes of failure (xs) o c c current process controls d e t r p n recommend actions responsible person & target date taken actions s e v o c c d e t r p n 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 six sigma consultants, 1996 pfmea_cpage 7 # 工程功能 （阶段） 潜在故障类型（ 工程缺陷） 潜在故障影响 （ys） 深 刻 性 等 级 潜在故障原因 (xs) 发 生 度 现工程控制 检 出 度 r p n 改善案 改善担当 完了日程 实施 与否 深 刻 性 发 生 度 探 知 度 r p n six sigma consultants, 1996 pfmea_cpage 8 # 工程功能 （阶段） 潜在故障类型（ 工程缺陷） 潜在故障影响 （ys） 深 刻 性 等 级 潜在故障原因 (xs) 发 生 度 现工程控制 检 出 度 r p n 改善案 改善担当 完了日程 实施 与否 深 刻 性 发 生 度 探 知 度 r p n 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 six sigma consultants, 1996 pfmea_cpage 9 # 工程功能 （阶段） 潜在故障类型（ 工程缺陷） 潜在故障影响 （ys） 深 刻 性 等 级 潜在故障原因 (xs) 发 生 度 现工程控制 检 出 度 r p n 改善案 改善担当 完了日程 实施 与否 深 刻 性 发 生 度 探 知 度 r p n 43 44 45 46 47 48 49 50 51 52 53 54 55 severity page 10 effectcriteria: severity of effect definedranking hazardous: without warning may endanger operator. failure mode affects safe vehicle operation and / or involves noncompliance with government regulation. failure will occur without warning. 10 hazardous: with warning may endanger operator. failure mode affects safe vehicle operation and / or involves noncompliance with government regulation. failure will occur with warning. 9 very high major disruption to production line. 100% of product may have to be scrapped. vehicle / item inoperable, loss of primary function. customer very dissatisfied. 8 high minor disruption to production line. product may have to be sorted and a portion (less than 100%) scrapped. vehicle operable, but at a reduced level of performance. customer dissatisfied. 7 moderate minor disruption to production line. a portion (less than 100%) may have to be scrapped (no sorting). vehicle / item operable, but some comfort / convenience item(s) inoperable. customers experience discomfort. 6 low minor disruption to production line. 100% of product may have to be reworked. vehicle / item operable, but some comfort / convenience item(s) operable at reduced level of performance. customer experiences some dissatisfaction. 5 very low minor disruption to production line. the product may have to be sorted and a portion (less than 100%) reworked. fit / finish / squeak / rattle item does not conform. defect noticed by most customers. 4 minor minor disruption to production line. a portion (less than 100%) of the product may have to be reworked on-line but out-of-station. fit / finish / squeak / rattle item does not conform. defect noticed by average customers. 3 very minor minor disruption to production line. a portion (less than 100%) of the product may have to be reworked on-line but in-station. fit / finish / squeak / rattle item does not conform. defect noticed by discriminating customers. 2 noneno effect.1 occurance page 11 probability of failurepossible failure ratescpk very high:? 1 in 2 0.33 failure is almost inevitable1 in 3? 0.33 high: generally associated with processes similar to previous 1 in 8? 0.51 processes that have often failed1 in 20? 0.67 moderate: generally associated with processes similar to 1 in 80? 0.83 previous processes which have1 in 400? 1.00 experienced occasional failures, but not in major proportions 1 in 2,000? 1.17 low: isolated failures associated with similar processes 1 in 15,000? 1.33 very low: only isolated failures associated with almost identical processes 1 in 150,000? 1.5 remote: failure is unlikely. no failures ever associated with almost identical processes ? 1 in 1,500,000? 1.67 occurance page 12 ranking 10 9 8 7 6 5 4 3 2 1 detection page 13 detectioncriteria: liklihood the existence of a defect will b