spc基本概念介紹(參考版)
2025-02-21 01:21本頁面
【正文】 whereorSinderella Liu~ The End ~Sinderella Liu謝謝觀看 /歡迎下載BY FAITH I MEAN A VISION OF GOOD ONE CHERISHES AND THE ENTHUSIASM THAT PUSHES ONE TO SEEK ITS FULFILLMENT REGARDLESS OF OBSTACLES. BY FAITH I BY FAITH。page.It relates the scaled distance between the process mean and the closest specification limit to half the total process spread. ,asn 2 3 4 5 6 7 8 9 10d2 Sinderella LiuCpk (Process Capability Index): ☆ Cpk is the capability index which accounts for process centering and is defined as the minimum of isbelowpartialinasmovinggroupingusednsamplebyconstantisandmovingoftheherebyestimatedstandardwhere iswhereorSinderella LiuCp (Capability of Precision): ☆ Cp is the capability index which is defined as the tolerance width divided by the process variation, irrespective of process centering. ,time.),improvementandtoCpkwithtotousedshouldandBothsampled.individualofoftotalto “n”whereAndchart ☆ Process may be OUT OF CONTROL if 14 successive points oscillate up and down, a systematic trend in the process is signaled.Process MeanUpper Control LimitLower Control LimitAABBCC???? ?????? ? ???6Sinderella LiuTest 7: Avoidance of Zone C Test☆ Applies for X chart only☆ Process may be OUT OF CONTROL if 8 successive points occurring on either side of the centerline avoid zone C Process MeanUpper Control LimitLower Control LimitABCABC ??? ??? ? ? 7Sinderella LiuTest 8: Run in Zone C Test☆ Applies for X chart only☆ Process may be OUT OF CONTROL if 15 successive points fall in zone C only, to either side of the centerlineProcess MeanUpper Control LimitLower Control LimitABCABC? ? ??? ??? ?? ??? ??8Sinderella LiuPp (Process Performance): ☆ Pp is the performance index which is defined as the tolerance width divided by the process variation. ,chart ☆ Process may be OUT OF CONTROLProcess MeanUpper Control LimitLower Control LimitAABBCC??? ? ?? ?? ? ?4Sinderella LiuTest 5: Linear Trend Identification☆ Applies both for X and R control☆ Each zone is one sigma (σ)Sinderella LiuTest 1: Extreme Points / Out of Control☆ Applies both for X and R controlMR:X Chart : Upper Control Limit:Lower Control Limit:MR Chart : Upper Control Limit:Lower Control Limit:Sinderella LiuX)RangeCenterline:Average:MeanMovingChart ===Sinderella LiuCalculationChart=:MeanRangeCenterline:=fromStandardtheforChartsforControlthefromforthetable6 7 8 9 10 nThe
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