(3) FMEA_3A Back Ground_1 Slide

3A ConsultancyExperts in knowledge transfer

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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


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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


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


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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


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


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ISO/TS 16949



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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


kim sot thit k/SX


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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.


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


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ISO/TS 16949

Hiu bng tnh FMEA



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ISO/TS 16949



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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


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).


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


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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


Prevention


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).


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


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ISO/TS 16949



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ISO/TS 16949



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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:


Th t phn loi ri ro:

SEV

Mc nguy him (SEV*OCC)

RPN=SEV*OCC*DET

Lm sao gim SEV ?


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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


Gi tr ca RPN phI c tnh li ngay sau khi cc hnh ng cn thit c thc hin


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ISO/TS 16949

FMEA l ti liu sng


FMEA l ti liu sng


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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


Sau khi thc hin, mi nhm c ngi i din trnh by kt qu trc lp hc


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ISO/TS 16949

Q & A


Q & A

Documents

(3) FMEA_3A Back Ground_1 Slide