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3A FMEA - Failure mode and Effect Analysis
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3A ConsultancyExperts in knowledge transfer
1
ISO/TS 16949
FMEAPotential Failure Mode and Effects Analysis
3A Consultancy Knowledge is power
Potential Failure Mode and Effects AnalysisCc dng sai hng v phn tch nh
hng ca chng
3A ConsultancyExperts in knowledge transfer
2
ISO/TS 16949
Mc ch:
Xem xt loi sai hng v phn tch cc nh hng.
Vn bn ho nhng sai hng tim nng (v cc nguyn nhn tng ng ca chng) trong qu trnh hin ti
3A Consultancy Knowledge is power
trnh hin ti Xc nh (v truy vt) cc hnh ng loi
b hay gim nhng sai hng ny trong tng lai.
CI tin cht lng, tin cy v an ton ca sn phm v qu trnh c nh gi.
CI tin s hi lng ca khch hng
3A ConsultancyExperts in knowledge transfer
3
ISO/TS 16949
Phm vi p dng ca FMEA
Cc qu trnh thit k sn phmCc qu trnh thit k dy chuyn cng nghCc d n cI tinCc thay i, nh mI trng mi, a im mi hay ng dng mi
Cc dng FMEA
3A Consultancy Knowledge is power
Cc dng FMEA
CFMEA: Thc hin FMEA trong giai on hnh thnh tng (Concept)DFMEA: Thc hin FMEA trong giai on thit k sn phmPFMEA: Thc hin FMEA trong giai on thit k cng ngh/on sn xutMFMEA: Thc hin FMEA cho my mc thit b
3A ConsultancyExperts in knowledge transfer
4
ISO/TS 16949
3A Consultancy Knowledge is power
3A ConsultancyExperts in knowledge transfer
5
ISO/TS 16949
Thut ng v khi nim
Tnh nghim trng (Severity) : l cp i km theo nh hng nghim trng nht i vi dng li a ra.S xut hin (Occurrence) : l kh nng m nguyn nhn/cchs xy ra trong sut qu trnh thitk/ SX.S pht hin (Detection) :l cp c kim sot s dng trong khi kim sot thit k/SX
3A Consultancy Knowledge is power
kim sot thit k/SX
3A ConsultancyExperts in knowledge transfer
6
ISO/TS 16949
Cc bc trin khai FMEA:
1. Thnh lp i FMEA
2. Thu thp cc thng tin u vo3. Xc nh cc bc cng ngh, cc i tng4. Xc nh cc sai hng tim nng, phn loi, phn tch cc nh
hng, xc nh nguyn nhn, nh gi mc nghim trng, tnxut xut hin, kh nng pht hin.
3A Consultancy Knowledge is power
xut xut hin, kh nng pht hin.5. Xc nh v thc hin cc hnh ng ngn nga6. nh gi, tnh ton li ch s RPN
3A ConsultancyExperts in knowledge transfer
7
ISO/TS 16949
Hiu bng tnh FMEA
3A Consultancy Knowledge is power
3A ConsultancyExperts in knowledge transfer
8
ISO/TS 16949
3A Consultancy Knowledge is power
3A ConsultancyExperts in knowledge transfer
9
ISO/TS 16949
FunctionRequirements
Potential Failure Mode
PotentialEffect(s) of Failure
Severi
ty
Cla
ssif
icati
on
Potential Cause(s)/Mechanism(s) of
Failure
Occu
rren
ce
Current Process Controls
Prevention
Current Process Controls
Detection
Dete
cti
on
R.P
.N
Snphm g?, chi tit no?
Khng png chcnng ch nh! M t
Ci g khch hng c th nh hng (nht l an ton / lut nh).
3A Consultancy Knowledge is power
tit no? C ccChcnng g?
M tbng cc t kthut, vt l(Ko phi triuchng nhnbit bi kh)-Nt, lng, kt,bin dng
lut nh).-n/Nhm/R g-Khng vn hnh, ko n nh, ngt qung
Phn bit loi DFMEA vi PFMEA
3A ConsultancyExperts in knowledge transfer
10
ISO/TS 16949
Process/ Function
Requirements
Potential Failure Mode
PotentialEffect(s) of Failure
Se
ve
rity
Cla
ss
ific
ati
on
Potential Cause(s)/Mechanism(s) of
Failure
Oc
cu
rre
nce
Current Process Controls
Prevention
Current Process Controls
Detection
Dete
cti
on
R.P
.N
Cc chc nng gca QT
Khng p ng y/c ca qu trnh hay ch nh thitk! M t bng
Ci g khch hng c th nhn bit nh hng (nht l an ton/ lut nh).
3A Consultancy Knowledge is power
ca QT SX, c yu cu g ca QT
k! M t bng cc t k thut, vt l(Ko phitriu chng nhnbit bi kh)-Nt, cong, lch nhm-H mch, onmch, thiu l
lut nh).-Ng sdng-sp: n/ Nhm / R g/ ko nnh-Khu Tk-svn hnhcaqu trnh: Khng vnhnh, Ko n nh, ngt qung
Phn bit loi DFMEA vi PFMEA
3A ConsultancyExperts in knowledge transfer
11
ISO/TS 16949
3A Consultancy Knowledge is power
3A ConsultancyExperts in knowledge transfer
12
ISO/TS 16949
3A Consultancy Knowledge is power
3A ConsultancyExperts in knowledge transfer
13
ISO/TS 16949
3A Consultancy Knowledge is power
3A ConsultancyExperts in knowledge transfer
14
ISO/TS 16949
3A Consultancy Knowledge is power
3A ConsultancyExperts in knowledge transfer
15
ISO/TS 16949
3A Consultancy Knowledge is power
3A ConsultancyExperts in knowledge transfer
16
ISO/TS 16949
3A Consultancy Knowledge is power
3A ConsultancyExperts in knowledge transfer
17
ISO/TS 16949
Ch s ri ro u tin RPN
RPN=SEV*OCC*DETRPN l tch s ca mc nghim trng, kh nng xy ra v kh nng pht hinNhn gi tri gia 1 v 1000
Th t phn loi ri ro:
3A Consultancy Knowledge is power
Th t phn loi ri ro:
SEV
Mc nguy him (SEV*OCC)
RPN=SEV*OCC*DET
Lm sao gim SEV ?
3A ConsultancyExperts in knowledge transfer
18
ISO/TS 16949
Phn tch ch s ri ro u tin
Theo quy lut, phI c s quan tm c bit dnh cho ch s mc nghim trng cao (SEV = 9 hoc 10), ri sau mi n gi tr mc nguy him cao (SEV*OCC) v cui cng l quan tm ti tr s RPN
Gi tr ca RPN phI c tnh li ngay sau khi cc hnh ng cn thit c thc hin
3A Consultancy Knowledge is power
Gi tr ca RPN phI c tnh li ngay sau khi cc hnh ng cn thit c thc hin
3A ConsultancyExperts in knowledge transfer
19
ISO/TS 16949
FMEA l ti liu sng
3A Consultancy Knowledge is power
FMEA l ti liu sng
3A ConsultancyExperts in knowledge transfer
20
ISO/TS 16949
Bi tp
Lp hc chia lm 2 nhm lp biu FMEA cho 2 loi sn phm thng dng nht c sn xut ti Cng tyBiu FMEA c s dng theo biu do khch hng quy nh v lm trn giy A0Sau khi thc hin, mi nhm c ngi i din trnh by kt qu trc
3A Consultancy Knowledge is power
Sau khi thc hin, mi nhm c ngi i din trnh by kt qu trc lp hc
3A ConsultancyExperts in knowledge transfer
21
ISO/TS 16949
Q & A
3A Consultancy Knowledge is power
Q & A