Gajo4
8th April 2009, 03:22 AM
Is it a requirement to follow controlplan for serial production in a PPAP run?:confused::confused:
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View Full Version : Requirement to follow Control Plan for serial production in a PPAP run prototyper 8th April 2009, 04:26 AM A PPAP run should replicate all of the conditions that you would expect in mass production. I.e. manufacture from the production facility, with production personnel and following the controls which will be implemented during production. The objective of PPAP is to validate the part and the process. You should be following the control plan! Gajo4 8th April 2009, 05:14 AM Thank you for your answer. Shall the capability study be done at the measurements done according to Controlplan? What if the number of measurements is below 100? Should the PPAP run be longer in that case? Shall the measurements in dimensional results chapter be from measurements in running production according to controlplan or separately?:truce: prototyper 8th April 2009, 05:25 AM Thank you for your answer. Shall the capability study be done at the measurements done according to Controlplan? What if the number of measurements is below 100? Should the PPAP run be longer in that case? Shall the measurements in dimensional results chapter be from measurements in running production according to controlplan or separately?:truce: The capability study is normally on all significant/critical characteristics. For an agreement on the number of parts to measure for capability, talk to your customer STA Engineer, he/she will have the final say. Sequential parts will usually be measured from your pre-production run. bobdoering 8th April 2009, 09:50 AM Thank you for your answer. Shall the capability study be done at the measurements done according to Controlplan? What if the number of measurements is below 100? Should the PPAP run be longer in that case? Shall the measurements in dimensional results chapter be from measurements in running production according to controlplan or separately?:truce: You may be required to do many more measurements to establish your capability than the frequency established in the control plan. They are two different issues. The real curiosity is how did you come up with the control plan frequencies to begin with? :confused: That's typically a trick question. |
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