DCEC质量培训

6sigmasite::•Beforeyoucangaugeacomponentyouneedagaugethatiscapableofrepeatingtimeaftertimewithlittlevariationbetweenoperators.•••GR&Rlooksatthegauge&theeffectofdifferentoperators.R&R•TheprocesswewilllookatisoneofmanymethodsandisusedaspartofPPAPPPAPDCECQUALITY4GaugeR&RStudyhowtocomplete?R&R»Thegaugemustbecalibratedandbecapableofreadingatleasttoonetenthofthecomponenttolerance,1/1061/106σ/10»Select10componentsatrandomandmarkthem1to1010110DCECQUALITY5GaugeR&RStudyhowtocomplete?R&Rcontinuous»All10componentsaretobecheckedatrandomandsizerecorded,inspectors/operatorsmustnotknowNo/10»Thisexerciseisrepeated3timesusingdifferentoperatorsDCECQUALITY6AnalysisofthedataMeasurementsarerecordedongaugeR&Rformandcalculationscarriedout,almostallcalculationsaredoneautomatically,nextslideshowsacompletedform.DCECQUALITY7Guidelinesforgaugeacceptance%R&RÊUnder10%error-themeasuringsystemisacceptable10Ê10%to30%error-themeasuringsystemmaybeacceptablebasedonimportanceofapplicationcostofgaugeorcostofrepair1030Êover30%error-measurementsystemsneedsimprove..30StudyDiscriminationFromR&RDataR&R‹UsedatafromR&Rform,computer,charting,andassessingdiscriminationofMS.R&R‹RangechartwillshowthatMSarebeingmadewithinadequatediscriminationintwoconditions:A.Only1,2,or3possiblevaluefortherangewithinthecontrollimits.123B.4possiblevaluefortherangewithinthecontrollimitsandover1/4ofrangearezero.41/40