1、3010:0010:3011:0011:3012:0012:3013:0013:3014:0014:3015:0015:3016:3017:0018:3019:00 19:3020:0021:30样本13.393.353.393.393.393.393.393.393.393.393.333.393.393.393.393.353.393.353.393.39 3.39 3.393.393.39样本23.393.393.393.393.393.393.393.393.393.393.393.373.363.393.393.393.393.393.393.39 3.35 3.393.353.39
2、样本33.363.303.393.393.393.393.393.393.393.393.393.393.393.393.393.393.353.323.393.39 3.39 3.363.363.39样本43.393.363.393.393.403.393.393.333.393.393.393.363.393.393.393.393.353.393.353.30 3.30 3.363.393.39样本53.393.393.393.393.363.393.403.393.393.393.393.353.393.353.353.353.353.393.393.35 3.35 3.353.353
3、.35均值3.383.363.393.393.393.393.393.383.393.393.383.373.383.383.383.373.373.373.383.36 3.36 3.373.373.38极差R0.030.090.000.000.040.000.010.060.000.000.060.040.030.040.040.040.040.070.040.09 0.09 0.040.040.04计算公式及结果:控制上限UCL=3.378样本标准差:=(X1+X2+X3Xi-nXbar/n-1)=0.010744732控制下限LCL=#上限PPK值:PPK1=(USL-Xbar)/3=6.881925149下限PPK值:PPK2=(Xbar LSL)/3=2.424960853PPK=制程能力判定:合格率 不合格注:PPK值取PPK1与PPK2中的最小值,PPK1.67,表示制程能力足够,判定为合格,否则判定为不合格。制程能力不足原因分析及对策均值X图0:000:0000.40.81.21.622.42.83.23.64极极差差R R图图0:000.00 0.10 0.20 0.30 0.40 0.50 系列1UCL极极差差R R图图0:000.00 0.10 0.20 0.30 0.40 0.50 系列1