Tahirawan77
Involved In Discussions
Hi,
I want to calculate the capability of my process. The variable is part thickness of the surface profile. The material thickness is measured at 5 different points within the part. See picture below for details
I have measured 30 parts and each part has 5 points as given in the picture. The target thickness and the tolerances of all the points is same which is 1mm±0.1.
In order to calculate process capability should I calculate a separate Cpk value for each of the points (P1…P5) so in the end I have 5 Cpk values or should I calculate Cpk for each part so I have 30 Cpk values (one for each part). Which is the correct approach?
Thanks for your help
I want to calculate the capability of my process. The variable is part thickness of the surface profile. The material thickness is measured at 5 different points within the part. See picture below for details
I have measured 30 parts and each part has 5 points as given in the picture. The target thickness and the tolerances of all the points is same which is 1mm±0.1.
In order to calculate process capability should I calculate a separate Cpk value for each of the points (P1…P5) so in the end I have 5 Cpk values or should I calculate Cpk for each part so I have 30 Cpk values (one for each part). Which is the correct approach?
Thanks for your help