N
nitros1
Hi all greetings.
Working in one of my first PFMEAs I come across with tester stations. My question is how are these stations treated? They are part of the process but no operation is being made, or modifications are being made to the product they are just testing some characteristics of the process, using sensors for example, so the failure modes of these stations would just be not testing well? if these is the case then why in other non tester stations the malfunction of sensors is not considered failure modes? or for example if I want to the test the presence of a screw, should I include the failure mode * absence of screw* even though I considered this stations before in the station that indeed puts the screw on?
Secondly, what is the best way to use * visual inspection* as a detection method? An engineer told me that I shouldnt use visual inspection unless I had somebody inspecting the condition, what about if the operator of the next station in the paragraph above notices the lack of screw even though is not an inspector checking 100 per cent that condition.
Thank you for your help.
Working in one of my first PFMEAs I come across with tester stations. My question is how are these stations treated? They are part of the process but no operation is being made, or modifications are being made to the product they are just testing some characteristics of the process, using sensors for example, so the failure modes of these stations would just be not testing well? if these is the case then why in other non tester stations the malfunction of sensors is not considered failure modes? or for example if I want to the test the presence of a screw, should I include the failure mode * absence of screw* even though I considered this stations before in the station that indeed puts the screw on?
Secondly, what is the best way to use * visual inspection* as a detection method? An engineer told me that I shouldnt use visual inspection unless I had somebody inspecting the condition, what about if the operator of the next station in the paragraph above notices the lack of screw even though is not an inspector checking 100 per cent that condition.
Thank you for your help.