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关于SPC控制线问题

我公司电阻测试,规格值是200正负2 但是我公司测试标准全部在200以上,但是计算的CPK在1.67以上,这样符合标准吗? 是不是数值只要在平均值中心线上下浮动就可以了? 希望高手帮忙!!
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hanye (威望:0)

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very high value for CPK,it indicate the management level of your company stand on the high plat.
But from the point of SPC,you should analyze the status for all result on one side of the control line(however it's the abnormal and out of control,maybe there have potential risk), then you can take the following step according your analyse(please also consider the cost into your improvements).

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