PFMEA-失效模式分析案例

更新时间:2023-07-27 03:49:26 阅读: 评论:0

Co.,Ltd.
(PROCESS  FMEA)
Item 项目名称:Page no.页码:共19页
Model Year/Vehicle:Responsibility
责任部门:
Prepared by 制作:
Core Team 核心小组:
Key Date 关键日期:
过程项目
潜在的
潜在的严S级潜在的频O现行制程预防控制现行制程侦测措施难DR 建议的措施责任与目标效果确认Action Results
&功能要求
失效模式失效结果重E
失效原因与机理度CCurrent  Control
Current Control
检e
P Recommended 完成日期S O D R Process Descpription Potential Potential
度V别Potential 数C
Prevention
Detection
度tN
Action(s)
Res.&Tar.采取的措施e c e P &Process Purpo  Failure Mode
Effect(s) of Failure
Cau(s) of Failure
Completion Date
Action Taken
v
c
t
N
Parts incoming 部品受入过程1. Receiving  parts poor appearance function error 7
handling carelessly by 2None    1 visual check by warehouman & IQA 2None 1.接收部品
on carton or  packing NG operator or due to delivery 无
1 由仓管员及IQA 目视检查无
纸箱的有形损坏
功能或装置不良
操作或运输过程中的过失操作
2 visual check by PK01 station 7
2 包装工位目视检查
actual qty unmatched with can't complete this lot 7handling carelessly by 2None check by warehouman & IQA 4None supplier's invoice 无法完成该批量的产品
operator or due to delivery 无
由仓管员及IQA 核对发票上的数量
6
部品数量与供应商操作或运输过程中的过失操作
的发票不符
2.Incoming inspection oversight on inspection NG parts relead to 6incoming part relead to 2rule of incoming inspection    1 check by part using station 2None 2.受入检查漏检
product line 4
warehou without relea 受入检查规定
1 部品使用工位来料检查7
(IQC)
错误或不良品stamp of IQA
2 cosmetic check 100%流到生产线
无受入检查印章部品入了库
2 100%进行外观检查
求职英语NG parts relead to 6  1 miss operating 2
qualification training on 4
None product line
4  1 操作失误
inspection 3无检查员资格培训
2 don't point out inspection item in inspection document 2 检验指导书没有明确的指出检测点
2
1 add inspection items in document
1 追加检验指导书中没有的检验点
2 IQC re-inspect all parts in warehou 2 在库品IQC 全部重检
3 refer detail in report SCAR
07-OM-005 and SCAR 07-OM-0033 详见编号为SCAR 07-OM-005 and SCAR 07-OM-003中的报告100% fuction check 后段工位多重100%进行功能测试
3
None 无
3 tester failure 2
3None 3 测定器失效
4
3. Part storage Part Shortage can't complete this lot 7mistake input by warehouman 2None check parts list by warehou 4None 3.部品入库/储藏
缺少部品
无法完成该批量的产品
1
仓管员输入错误
仓库核对入库清单
6
check parts list by materiel people 物料员核对入库清单
part rustiness function error 7temperature/humidity out of 2  1.temperature/humidity control 2None /ESD destroy 功能不良
standard    1.温湿度管理规定4
部品生锈/ESD 破坏
温湿度超标
2.ESD control
作业准备时点检温湿度表2.静电管理规定
4. Part supplyed to part supplyed wrongly product line stop 7mistake parts by warehouman 2mark part location and making check part list and BOM 4
None    product line 发错料
生产线停产
1
or part list wrong special control on similar parts 检查发料清单,核对BOM 表
4.发料到生产线
发料员在仓库拿错料对部品放置区域作相关标识发料单制作错误
对类似品作特殊管理
part'surface scrape in transport process 部品刮伤
poor appearance
外观不良(面板,旋钮表面刮伤)64
1 rub between parts and packing materiel
1 部品在运输过程中与自身的包装材料摩擦
2
1 requt vender improve packing materiel
1 要求供应商修改部件的包装材料
2 refer detail in report PR-07-08
2 详见PR-07-08报告
1 inspect parts before asmble 1 部品组装前检验
2 cosmetic check 100%2 外观100%检验
4
7
None 无
100% fuction check 后段工位多重100%进行功能测试check temperature/humidity at  the begin of work
overview NG
未检出不良错误或不良品流到生产线
96
28
56
56
36
56
96
24
48
28
有限公司
工 程 潜 在 的 失 效 模 式 与 效 果 分 析
什么是dj
C
L
A
S
S
风险优先
FMEA date 日期(编制):
emendation on equipments  yearly 仪器校正每年一次
equipments maintain  monthly 设备的月度保养check equipments at the begin of work
作业准备时测量
6
6
Co.,Ltd.
(PROCESS  FMEA)
Item 项目名称:Page no.页码:共19页
Model Year/Vehicle:Responsibility 责任部门:Prepared by 制作:
Core Team 核心小组:
Key Date 关键日期:
过程项目潜在的潜在的严S级潜在的频O现行制程预防控制现行制程侦测措施难DR
建议的措施责任与目标效果确认Action Results
&功能要求
失效模式失效结果重E失效原因与机理度CCurrent  Control
Current Control
检e
P
Recommended 完成日期S
O D R Process Descpription Potential Potential
度V别
Potential 数C
Prevention
Detection
度tN Action(s)
Res.&Tar.采取的措施e c e P &Process Purpo  Failure Mode
Effect(s) of Failure Cau(s) of Failure Completion Date
Action Taken
v
c
t
N
有限公司
工 程 潜 在 的 失 效 模 式 与 效 果 分 析
C L
A S S
风险优
先率
FMEA date 日期(编制):
5.Label print print  badness difficult to trace 4operating NG 2
training operator label scan.
条码扫描比对
2
None 5.标签打印
打印不良
批量不易追溯
1
作业不良培训作业员
无equipment  NG 2check and maintain equipment daily check 2
None 设备故障
点检,保养
日常点检无
label scan.
条码扫描比对
CDR MECHA 准备工程PCB's surface scrape 主基板表面划伤function error 功能不良87
PCB scrape by hardness in process
作业过程中硬物刮伤
2
forbid operator wear ring or other hardness
作业员禁止带戒指等硬物作业
1 100% visual check 1 100%目视检查
2 next station 100% function check 2 后续多层工位100%功能视检查4
3
none 无
ESD destroy electrical function
7
operator not wearing 2
u ESD cleaner to get rid of ESD
1.daily check before line start 2None ESD 破坏
failured
ESD band
使用离子风机消除静电
1.每天开始生产前检查
4
电器性能破坏
作业员没有佩带静电带
2.check ESD of operating areas 2.作业区域静电检查oversight on inspection 漏检NG parts relead to product line,result in
production function fail as can't workable or instability
不良品流到生产线,造成产品功能不良
87
parts put into next station without inspection becau of miss operating of operator
作业员失误,部件没有检查就流到下个工位
2
dispart the checked parts and without check parts
检查过和未检查的部品分开放置if parts have checked ,will make a mark on it
在已经检查过的部品上打点确认100% fuction check
后续多层功能测试工位100%检查100% visual check  on parts using station
在部件的使用工位100%检验有无该标识
43
none 无
`
NG parts relead to 6  1 miss operating 2
qualification training on 4
None product line
4  1 操作失误
inspection 3
检查员资格培训
2 tester failure 2emendation on equipments emendation list of equipments 3
None 2 测定器失效
仪器校正
仪器校正清单
100% fuction check 后段100%进行功能测试
FT 测试搜索敏感性的参数设
置不正确
产品误判(搜索不停台)2参数设置过严,造成产品在正常的状态下无法实现搜索停台的功能2搜索停台的控制规格设定为35.3dbuvemf
fuction check
后续工位功能检查
4搜索停台的控制规格更改设定为36.7dbuvemf
生技
日期: 2007/06/20完成负载盒上开关位置拨错
产品误判(搜索不停台)
2
作业员误操作将负载盒上的"TNS"开关由"on"拨到"OFF"造成产品在正常的状态下无法实现搜索停台的功能
2生技设备月度保养工作准备时作业员的点检
4
1 负载盒上追加开关位置标识
2 将负载盒上的ACC 开关移到治具上,避免作业员在负载盒上作业生技
日期: 2007/06/11
trigger完成
7. fix main PCB to chassis module chassis is
NG asmbly 7handling carelessly by 2
None 2
minus怎么读
None  &screwing out of shape 错误装配4
operator or due to delivery 无
7
( ST:A-01)
模块变形
操作或运输过程中的过失操作
由仓管员及IQA 目视检查7.组装主基板至五金支架check by hislf &打螺丝
对来料进行自检查
NG asmbly fixing  NG 7pressure not enough 2
u cylinder jig check pressure daily and when 4None 错误装配组装不到位4压力不够
用气缸治具
model changed
absolve每天或换机种时检查气压fixing to wrong location 2
training operator 100% visual double check 4None 放入位置不正确
培训作业员
100%双重目视检查7无screw loo/tighten rattle noi heard when 6screw driver torque too small 2
u torque meter to control check torque daily and when 4
None 螺丝松动或过紧
shaking due to loo 4
螺丝刀扭力过小
torque
model changed
松动,摇晃时有杂音用扭力计控制扭力
每天或换机种时检查扭力slide occurred due to 6screw driver torque too big 2u torque meter to control check torque daily and when 4
None tighten 4螺丝刀扭力过大
torque
model changed
过紧,滑牙
用扭力计控制扭力每天或换机种时检查扭力stick sheet to wrong can't load CD 7miss operating 2  1.training operator 100% visual double check 4None location
不能进碟
操作错误
1.培训作业员100%双重目视检查
7
碟仓绒布贴附位置不正确
2.process sheet 2.作业指导书
100% fuction check 后段多层工位100%进行功能测试visual check by warehouman & IQA 16
16
28
64
56
5664
56
28
36
16
5648
48
错误或不良品流到生产线,
48
6. inspect main PCB (ST:PT01)
6. main PCB 部件检验
overview NG 未检出不良6
Co.,Ltd.
(PROCESS  FMEA)
Item 项目名称:Page no.页码:共19页
Model Year/Vehicle:Responsibility
责任部门:
Prepared by 制作:
Core Team 核心小组:
Key Date 关键日期:
过程项目潜在的潜在的严S级潜在的频O现行制程预防控制现行制程侦测措施难DR
建议的措施责任与目标效果确认Action Results
&功能要求
失效模式失效结果重E失效原因与机理度CCurrent  Control
Current Control
检e
P
Recommended 完成日期S
O D R Process Descpription Potential Potential
度V别Potential 数C
Prevention
Detection
度tN
Action(s)
Res.&Tar.采取的措施e c e P &Process Purpo
Failure Mode
Effect(s) of Failure Cau(s) of Failure Completion Date
Action Taken
v
c
t
N
有限公司
工 程 潜 在 的 失 效 模 式 与 效 果 分 析
C L
A
S
S 风险
先率
FMEA date 日期(编制):
PCB crack/scratch function error 7
miss operating 2
功能不良
操作失误
1.培训作业员
100%目视检查
3
2.jig for avoiding missing 2.防呆治具
incoming part NG 2
PCB cosmetic check incoming inspection 2None 来料不良
PCB 板外观检查
受入检查
3
好易通电子词典
100% check fuction repeatedly 后段多层工位100%进行功能测试
forget to stick heat
NG asmbly 7miss operating 2
1.manage by quantity 100% visual check by hislf 4
None sink sheet to PCB 错误装配
4
操作错误
1 数量管理
100%目视自检8
漏贴散热胶布至PCB
2.process sheet 2.作业指导书
ESD destroy electrical function
7
operator not wearing 2
u ESD cleaner to get rid of ESD
1.daily check before line start 2None ESD 破坏
failured
ESD band
使用离子风机消除静电
1.每天开始生产前检查
4
电器性能破坏作业员没有佩带静电带  2.check ESD of operating areas 2.作业区域静电检查
space between panel fixing  NG 3block of fixing jig shifted 2  1.check this item when monthly    1 visual check  by hislf after 3None bottom and chassis 组装不到位
面板底盖定位块的位置发生偏移
maintenance
asmble 7
is too big when    1.治工具月度维护时重点检查此项目
1 组装后自检
asmbly
2 next station check 组装时面板底盖与五金支架  2 后工位检查
之间间隙过大screw of jig lood NG asmbly 3
the screw is ud to fix the 2
1.check this item when monthly    1 visual check  by hislf after 3None 治具螺丝松动
错误装配
hsj
pillar of cylinder and pillar maintenance
asmble 7
of press,it's easy to become    1.治工具月度维护时重点检查此项目
1 组装后自检
loo when using
2 next station check 该螺丝用于连接汽缸杆与受力杆,  2 后工位检查
使用中易松动
post beside sheet leather NG asmbly 3
this item is not treated as
2None    1.IQC added this item to inspection 4None plate of bottom panel 错误装配
important item when inspection 无
process sheet
is anamorphic
IQC 检查时未将此项列入重点检查  1.IQC 将此项列入受入检查的重点检查项目面板底盖贴附碟仓绒布处项目
2.100% visual inspection 支柱变形
2.100%目视检查
螺丝刀碰伤主基板回路功能不良(AM 无反应)7
治具上有多余的孔,作业员锁螺丝
时打错位置,将主基板上的回路钻断
2治具上的螺丝孔位有标识
100% function check 100% 功能检查
4治具改造,将治具上多余的孔位去
生技日期:2007/08/07
完成
100% check fuction repeatedly 后段多层工位100%进行功能测试56
1818
2456
28
28
56
3
Co.,Ltd.
(PROCESS  FMEA)
Item 项目名称:Page no.页码:共19页
Model Year/Vehicle:Responsibility
责任部门:
Prepared by 制作:
Core Team 核心小组:会计职业道德
Key Date 关键日期:
过程项目潜在的潜在的严S级潜在的频O现行制程预防控制现行制程侦测措施难DR
建议的措施责任与目标效果确认Action Results
&功能要求
失效模式失效结果重E
失效原因与机理度CCurrent  Control
Current Control
检e
P Recommended 完成日期S
O D R Process Descpription Potential Potential
度V别Potential 数CPrevention
Detection
度tN
Action(s)
Res.&Tar.采取的措施e c e P &Process Purpo  Failure Mode
Effect(s) of Failure
Cau(s) of Failure Completion Date
Action Taken
v
c
t
N
有限公司
工 程 潜 在 的 失 效 模 式 与 效 果 分 析
C
L
A
S
S
风险优先
gway
FMEA date 日期(编制):
1 shock top cover by operator's mistake and make distortion of CD module
1 作业动作过失磨擦上盖导致机芯变形4
can not superpo CD module in check process 检测过程中不能叠放
1  100% function check
2  100% visual check 1  100% 功能检查2  100% 目视检查
23
None 无
2 Test CD dirty 2 碟片赃污
4
check and maintain Test CD before operation
作业员作业前先进行光盘点检
function check 功能检查23
None 无
CD module'axes lock CD 机芯前轴卡住CD 碟function errer(CD is not workable and feedback)功能不良(无法读碟)87shock parts and make distortion of CD module 部品碰撞变形
4check appearance 检查确认外观
100% function check 功能检查
23None 无
oversight on inspection 漏检
NG parts relead to product line,result in
production function fail as can't workable or instability
不良品流到生产线,87
parts put into next station without inspection becau of miss operating of operator
作业员失误,部件没有检查就流到下个工位2
dispart the checked parts and
without check parts
检查过和未检查的部品分开放置if parts have checked ,will make a mark on it
在已经检查过的部品上打点确认100% fuction check
后续功能测试工位100%检查
100% visual check  on parts using station
在部件的使用工位100%检验有无该标识3
none 无
NG parts relead to 6  1 miss operating 2qualification training on 4None product line
4
1 作业员失误,
inspection 3
错误或不良品流到生产线,
检查员资格培训
2
2 tester failure 2
3None 2 测定器失效
4
not fix FFC steady function error
8
miss operating 2
1.make jig to inrt FFC 3
None 功能不良(FR,RR 声道无输出)7作业员过失
1.制做FFC 排线插入治具
6
inrt FFC flatly function error
7
miss operating 2
None FFC 未水平插入功能不良
作业员过失
1.培训作业员100%目视检查并打点确认6
2.process sheet 2.作业指导书
nancy治具排线端子与机芯接触不良
产品误判(按出碟键无反应)7治具上的FFC 排线多次使用后磨损,造成与机芯接触不良
2
将FFC 排线列为易损件,每月进行更换
fuction check
后续工位功能检查3治具改造,在治具上追加FFC 排线快速夹子生技
日期: 2007/06/18
完成
100% visual inspection 4None preparation&bracket screwing 机芯弹簧脱落
功能不良
操作错误
100%目视检查3
(ST: A-02)
fuction check 9.FFC 排线插入&机芯准备&后续工位功能检查  机芯支架打螺丝
incoming part NG 2None incoming inspection 2None 来料不良
受入检查
100% fuction check 后续工位功能检查
ESD destroy electrical function
8Operator not wearing 2
u ESD cleaner to get rid of ESD
2None ESD 破坏
failured
7
ESD band
使用离子风机消除静电
4
电器性能破坏
作业员没有佩带静电带作业前检查静电
screw loo/tighten rattle noi heard when 6screw driver torque too small 2
u torque meter to control check torque daily and when 4None 螺丝松动/过紧shaking due to loo 4
螺丝刀扭力过小
torque
model changed
松动,摇晃时有杂音
用扭力计控制扭力
每天或换机种时检查扭力
2.add correct method to carry CD module process  sheet
2.作业指导书追加机芯的正确握取方法2.add the correct method of inrtting FFC into process sheet
2.在作业指导书内追加FFC 排线的正确插入方法
1.100% visual inspection after FFC was inrted, and add mark on FFC cable,1.FFC 插入后100%目视检查,检查ok 后在FFC 排线上打点做标识,
2 check mark 100% next station 2 后工位在100%目测检查标识
56
100% fuction check
后续功能测试工位100%检查
check ESD of operating areas befor line start
64
64
6448
56
64
test CD can not inrt into SCD module CD 机芯不入碟
function errer 功能不良
87
48
28FFC 未固定(没有扣上 固定FFC 排线的固定扣)
8. inspect SCD module (ST:PT-02)
8. CD 机芯部件的检查
overview NG 未检出不良
32
56
36
emendation on equipments  yearly 仪器校正每年一次
equipments maintain  monthly 设备的月度保养check equipments at the begin of work 始业点检
6
4
Co.,Ltd.
(PROCESS  FMEA)
Item 项目名称:Page no.页码:共19页
Model Year/Vehicle:Responsibility
责任部门:
Prepared by 制作:
Core Team 核心小组:
Key Date 关键日期:
过程项目潜在的潜在的严S级潜在的频O现行制程预防控制现行制程侦测措施难DR 建议的措施责任与目标效果确认Action Results
&功能要求
失效模式失效结果重E
失效原因与机理度CCurrent  Control
Current Control
检e
P Recommended 完成日期S
O D R Process Descpription Potential Potential
度V别Potential 数C
Prevention
Detection
度tN
Action(s)
Res.&Tar.采取的措施e c e P &Process Purpo
Failure Mode
Effect(s) of Failure Cau(s) of Failure Completion Date
Action Taken
v
c
t
N
有限公司
工 程 潜 在 的 失 效 模 式 与 效 果 分 析
C L
A
S
S
风险优先
FMEA date 日期(编制):
slide occurred due to
6screw driver torque too big 2
u torque meter to control check torque daily and when 4None tighten 4
螺丝刀扭力过大
torque
model changed
过紧,滑牙
用扭力计控制扭力每天或换机种时检查扭力
can not fix screw to fixing  NG 7torque is to small(5±2kgf)3
increa torque to 6.75±1.25    1.check torque daily and when 2
None bracket
组装不到位
4
螺丝刀设定力矩规格过小
kgf ba on technical spc and model changed
3
机芯防尘支架螺丝打不进
test result,and revid CP and    1.每天或换机种时检查扭力
process sheet
2.operator confirms screwing well 根据设计规格和实际打螺丝测试结after fixing
结果,将力矩调至.75±1.25 kgf,并  2.作业员组装完毕后100%目视检查螺丝修订控制计划和作业指导书
打入良好
10. bracket-m screwing &fix
螺丝松动/过紧
shaking due to loo 6螺丝刀扭力过小
torque
model changed
4
None shield ca&fix FFC holder&
松动,摇晃时有杂音4用扭力计控制扭力每天或换机种时检查扭力无stick cushion dustproof (ST: A-03)
slide occurred due to 6screw driver torque too big
2
u torque meter to control check torque daily and when 4
None 10.机芯支架打螺丝&防护盖组装&tighten 4
螺丝刀扭力过大
torque
model changed
FFC 支架组装&防尘胶布贴附
过紧,滑牙
用扭力计控制扭力
每天或换机种时检查扭力ESD destroy
electrical function 8operator not wearing 2
u ESD cleaner to get rid of ESD
1.daily check before line start 2None ESD 破坏
failured
7
ESD band
使用离子风机消除静电
1.每天开始生产前检查
4
电器性能破坏作业员没有佩带静电带  2.check ESD of operating areas 2.作业环境静电检查
forget to fix FFC holder NG asmbly 7miss operating 2  1.training operator 100% visual double check 4None FFC 支架漏装
错误装配
4
操作错误
1.培训作业员100%双重目视检查
7
2.process sheet
2.作业指导书
forget to stick cushion NG asmbly 7miss operating 2  1.training operator 100% visual check 4None dustproof to bracket
错误装配
4
操作错误
1.培训作业员100%目视检查
8
漏贴防尘胶布至机芯支架
2.process sheet 2.作业指导书
not combine two of
NG asmbly 7miss operating
2
None dustproof completely 错误装配4操作错误,操作后未做压紧动作
1.培训作业员
100%目视检查8
防尘胶布接合处不紧密  2.process sheet update
2.修改作业指导书(追加NG 和OK 品FFC fixing NG function error 7
miss operating 2
None 4
None 排线组装不到位
功能不良
操作错误
2
not fix FFC steady function error 7miss operating 2  1.training operator 4None FFC 未固定
功能不良
操作错误
1.培训作业员6
2.process sheet
2.作业指导书
check by fixture 用治具检查FFC holder
NG fixing 7miss operating 2
1.培训作业员100%目视检查
4None 排线未放入排线支架错误装配4操作错误
2.process sheet 8
2.作业指导书3 using fixture
3 应用治具进行固定
sheet which is ud to
function error
8miss operating
2
training operator 100% visual inspection 4
none connect FFC and main PCB 功能不良(机芯不动作)7操作错误,操作后未做压紧动作
培训作业员
100%目视检查8
is not sticked firmly add this item as notice point FFC 与基板连接胶布未贴紧
into process sheet
将此项目作为作业注意点追加至作业指导书
100% double visual check and make a mark on ok product
双重目视检查和打点确认check by fixture 用治具检查
100% double visual check and make a mark on ok product
双重目视检查和打点确认42
5648
5648
32
56
64
56
5656
2
5
5

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