Thank you for your thorough answer.
It makes sense what you said. If I understood well all YS/YC in DFMEA are listed in SCCAF. Then the tier 1 receives this document from FORD let's say and manufacturer should agree to enter those in PFMEA also as SC/CC only if recognized as such. Normally the plant recognizes YS from DFMEA as SC in SCCAF and PFMEA when the probability of occurence is more than 4 correct ?
Thanks for the good discussion.
It makes sense what you said. If I understood well all YS/YC in DFMEA are listed in SCCAF. Then the tier 1 receives this document from FORD let's say and manufacturer should agree to enter those in PFMEA also as SC/CC only if recognized as such. Normally the plant recognizes YS from DFMEA as SC in SCCAF and PFMEA when the probability of occurence is more than 4 correct ?
Thanks for the good discussion.
YS = sev 5-8 anc OCC 4-10. If this becomes SC, special controls. In pfmea OCC is also 4-10.
In principle, the more you can prove your manufacturing process eliminates failure modes or reduces the likelihood of producing NOK parts the less special characteristics you would have to confirm, e.g. YS in dfmea becomes blank in pfmea due to a 100% automatic control in station which yields a ranking of OCC 2 (in the opinion of the team and as per applicable ranking table).
I´d be interested in knowing if someone has managed to avoid confirming a YC.
