PFMEA严重度频度探测度标值-中英文

1
PROCESS FMEA
Suggested PFMEA Occurrence Evaluation Criteria
Probability of Failure
Likely Failure Rates Ranking
Suggested PFMEA Detection Evaluation Criteria
5 per thousand pieces
6
2 per thousand pieces
5
1 per thousand pieces
4
0.5 per thousand pieces
3
0.1 per thousand pieces
2
≤ 0.01 per thousand
pieces
1
Absolute
Almost
3
by 50% of customers.
scrap,on-line but out-of-station.
Fit & finish/squeak & rattle item
Very Minor
does not confΒιβλιοθήκη Baidurm. Defect noticed by discriminating customers (less
9
Remote Very Low
无
无可辨识的影响
或对操作或操作者而言有轻微的不方便或无影响 1 极能低发生:失效不太可 ≤ 个 每 件 0.01 , 1000
1 很高
肯定能探测出 X
由错于措有施关，项有目差已异通的过零过件程不可/产能品产设出计。采用了防 1
检查类别: A = 防错措施 · B = 使用量具 · C = 人工检验
Effect
(Customer Effect) Very high severity ranking when a potential failure mode affects safe vehicle operation and/or involves noncompliance with government regulation without warning.
X 只通过双重目测检查来实现控制
7
控测制出可能能探 X X 用制制图的方法,如SPC(统计过程控制)来实现控 6
控测制出可能能探 X X 控件制离基开于工零位件后离10开0%工的位上后/通的测计量量测量,或者零 5
很低
配多合数和(75外%观以/尖上响)顾和客卡能塔发响觉项缺目陷不舒服. 或10产0%品)需可返能工需要分检,无需报废,但部分产品(小于 4
Ranking
10 9 8 7 6 5 4
Fit & finish/squeak & rattle item Or a portion (less than 100%) of the
Minor
does not conform. Defect noticed product may have to be reworked, with no
个 每 件 0.5 , 1000 低的失:相效对很少发生
个 每 件 0.1 , 1000
4 中上 3高 2 很高
控会制可有探较测多出机 X X 在行后测续量工和位首上件的检误查差(仅探适测用,或于在作作业业准准备备的时原进因) 4 控会制可有探较测多出机 X X 在工认工序。位上不上进能的行接误误受差差有探探差测测异零,:或供件利应。用、多选层择验、收安在装后、续确 3 控能制探几测乎出肯定 X X 在。工不位能上通的过误有差差探异测的零（件自动。测量并自动停机） 2
(Manufacturing/Assembly Effect)
Or may endanger operator (machine or assembly) without warning.
Very high severity ranking when a potential failure mode affects safe vehicle operation and/or involves noncompliance with government regulation with warning.
建议PFMEA严重度评估标值
过程失效模式分析
建议PFMEA频度评估标值
评定准则:后果的严重度
评定准则:后果的严重度
后果
一首客相采当个先的应用潜制考后的两在造虑果定个失的级严/)效装结重模.如配果度式果厂值导.两最产中致种终生的最可各缺较终能科陷高顾都永是者客存远便和.在是得(顾/的要出或, 造者可果当(制能潜/..装最造都在配终/装存失厂各配在效产科的的模生永后式,缺远采果导陷是用)致时要两最便首个终得先严顾出考重客相虑度和应的值/的中或.如定的一果级较个两结高制种 严别重度级
Vehicle/item inoperable (loss of primary function).
Vehicle/item operable but at a reduced level of performance. Customer very dissatisfied.
Or may endanger operator (machine or assembly) with warning.
Low: Relatively few failures
Remote: Failure is unlikely
≥ 100 per thousand
pieces
10
50 per thousand pieces
9
20 per thousand pieces
8
10 per thousand pieces
7
轻微
配50合%的和顾外客观能/尖发响觉和缺卡陷塔响项目不舒服. 或废部,在分生(产小线于上10其0%他)的工产位品返可工能需要返工,无需报 3
很轻微 配有合辨和识外力观顾客/尖(响25和%卡以塔下响)能项发目觉不缺舒陷服. 生或产部线分上产原品工(小位于返10工0%)可能需要返工,无报废,在 2
个 每 件 1 , 1000
Vehicle/item operable but comfort/ convenience item(s) operable at a reduced level of performance. Customer somewhat dissatisfied. Fit & finish/squeak & rattle item does not conform. Defect noticed by most customers (greater than 75%).
Or 100% of product may have to be scrapped, or vehicle/item repaired in repair department 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 half an hour and
Detection
Criteria A B C Suggested Range of Detection Methods Ranking
Very High: Persistent failures
High: Frequent failures
Moderate: Occasional failures
Hazardous without Warning Hazardous with Warning Very High
High
Moderate
Low
Very Low
Suggested PFMEA Severity Evaluation Criteria
Criteria: Severity of Effect: This ranking results when a potential failure mode results in a final customer and/or manufacturing/assembly plant defect. The final customer should always be considered first. If both occur, use the higher of the two severities.
个 每 件 50 , 1000
9
很高
车辆/项目不能工作(丧失基本功能) 或返修1010个%的小产时品以可上能需要报废,或者需在返修部门 8
个 每 件 20 , 1000
8
高:经常性失效
高
车非辆常不/项满目意可运行但性能水平下降.顾客 或在产返品修需部进门行进分行检返修,一的部时分间(小在于0.150-10%小)时需之报间废,或 7
个 每 件 10 , 1000
7
中等
车顾不辆客能不/运项满行目意.可运行,但舒适性/便利性项目 或或一者部需分在返(小修于部10门0%返)修产少品于可0能.5需小要时报废,不需分检 6
个 每 件 5 , 1000
6
低
车水辆平/有项所目下可降运行,但舒适性/便利性项目 或需送10往0%返的修产部品门可处能理需要返工或者在线下返修,不 5 中等:偶然性失效 个 每 件 2 , 1000
Or 100% of product may have to be reworked, or vehicle/item repaired off-line but does not go to repair department.
Or the product may have to be sorted, with no scrap, and a portion (less than 100%) reworked.
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 half an hour.
Impossible
certainty non-
of
X Cannot detect or is not checked.
10
detection.
Very Remote
Controls will probably not detect.
X
Control is achieved with indirect orrandom checks only.
than 25%).
Or a portion (less than 100%) of the product may have to be reworked, with no scrap, online but in-station.
2
None
No discernible effect.
Or slight inconvenience to operation or operator, or no effect.
失效发生可能性
可能的失效率
频度
无害警告的危 当响规潜车的在辆情的安形失全时效运,严模行重式和度在/定或无级设警非计告常不的高符情合况政下府影法 或造可成能危在害无警告的情况下对(机器或总成)操作者 10
≥ 个 每 件 100 , 1000
10
很高:持续性失效
有害警告的危 当响规潜车的在辆情的安形失全时效运,严模行重式和度在/定或有级设警非计告常不的高符情合况政下府影法 或造可成能危在害有警告的情况下对(机器或总成)操作者 9
5
探测性
几乎不可能 很微小 微小 很小 小 中等
建议PFMEA可探测度评估标值
准则 A B C
探测方法的推荐范围
探测度
绝能对探肯测定不可
X 不能探测或没有检查
10
控探制测方不法出可来能
X 只能通过间接或随机检查来实现控制
9
控机制会有能很探少测的出
X 只通过目测检查来实现控制
8
控机制会有能很探少测的出