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I need help in selecting Control chart type for Crimping operations that we are doing for RJ 45 Plugs. We have identified this as a critical process parameter that needs to be controlled and monitored over a period of time.
There are eight points of contact on each plug and the specifications set around the plugs are 6 +/- .08.
I did try with a moving average chart but it did not make sense in taking the average of these eight points as they are not exactly in a plain surface. The heights of teeth follow a U –shaped projection after crimping.
Please see the below data that I had measure for a small interval.
Based on the above data if can one could direct that would be great.
Thanks in advance.

There are eight points of contact on each plug and the specifications set around the plugs are 6 +/- .08.
I did try with a moving average chart but it did not make sense in taking the average of these eight points as they are not exactly in a plain surface. The heights of teeth follow a U –shaped projection after crimping.
Please see the below data that I had measure for a small interval.
Parts
1st trail
Avg
6
6.041
6.048
6.044
6.4
6.023
6.04
6.046
6.028
6.084
3
6.009
6.028
6.013
6.012
6.001
6.01
6.013
6
6.011
4
5.989
6.001
5.998
6
5.983
6.002
5.994
5.979
5.993
9
6.001
6.004
6.002
5.995
5.988
6
5.998
5.991
5.997
1
6.042
6.053
6.046
6.041
6.035
6.048
6.059
6.047
6.046
7
6.038
6.055
6.027
6.07
6.025
6.033
6.05
6.033
6.041
8
6.017
6.038
6.04
6.042
6.034
6.05
6.046
6.026
6.037
2
6.043
6.055
6.051
6.045
6.038
6.052
6.06
6.04
6.048
5
6.045
6.062
6.05
6.038
6.045
6.056
6.075
6.055
6.053
10
6.006
6.039
6.022
6.021
6.018
6.052
6.042
6.042
6.030
Based on the above data if can one could direct that would be great.
Thanks in advance.
