A
Dear all,
Is there anyone could help me whether the below statement is correct or not:
Average shrinkage = 0.26%
Standard Deviation (σ)of shrinkage = 0.024%
Dimension of molded part = 21.03mm
Considering of only changes of molded shrinkage caused by material,
and if we think it’s within the control (it means Cpk1.33(±4σ)
the changes of dimension should be within the figure as follows:
21.03X8X0.024 = 0.04mm
It means that even if the dimension changes according to the changes ±4σ of molded shrinkage caused by material itself, the changes of dimension should be within the tolerance of ±0.05mm
Could you please share with me of why it is correct or incorrect.
Thank you very much
Is there anyone could help me whether the below statement is correct or not:
Average shrinkage = 0.26%
Standard Deviation (σ)of shrinkage = 0.024%
Dimension of molded part = 21.03mm
Considering of only changes of molded shrinkage caused by material,
and if we think it’s within the control (it means Cpk1.33(±4σ)
the changes of dimension should be within the figure as follows:
21.03X8X0.024 = 0.04mm
It means that even if the dimension changes according to the changes ±4σ of molded shrinkage caused by material itself, the changes of dimension should be within the tolerance of ±0.05mm
Could you please share with me of why it is correct or incorrect.
Thank you very much