Process Capability

Process Capability compares how the process actually is (described by its mean and its standard deviation), compared to how it should be (described by its specification limits USL and LSL). Indices for Process Capability: Cp IndexCpk IndexPp IndexPpk Index...

Cpk

The Cpk-Index (Critical Process Capability; k: “Katayori”, Japanese for bias) compares the distance from the process center to the nearest Specification Limit (how the process should be) to the process spread (how it is). The short-term standard deviation...

Cp

The Cp-Index (Process Capability) compares the tolerances of the process (how it should be) to the process spread (how it is). The short-term standard deviation sST is calculated using short term data, usually 25-50 samples within a short time frame – i.e. days....
WordPress Cookie Notice by Real Cookie Banner