R&R Analysis Using SEDana

R&R Investigation Using Standard Data Analysis Tools Antoine Megens, Salland Engineering [email_address]

Contents ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Distribution ,[object Object],[object Object],[object Object],Measured value(s) Nr of measured values

Variation ,[object Object],Location Spread Shape

Measurement Errors ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

[object Object],[object Object],[object Object],[object Object],[object Object],Measurement Errors (cont’d) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Repeatability ,[object Object],[object Object],Repeatability

Reproducibility ,[object Object],[object Object],Reproducibility Appraiser A Appraiser B Appraiser C

Gage R&R ,[object Object],[object Object],Appraiser A Appraiser B Appraiser C GRR

Process Control ,[object Object],[object Object],[object Object],[object Object],[object Object],Prediction Time Prediction Time ? ? ? ? ? ? ? ? ? ? ? ? ? ?

Process Capability ,[object Object],Time Upper Specification Limit Lower Specification Limit In control but not capable of meeting specifications (variation of common causes is excessive) In control and capable of meeting specifications (variation from common causes have been reduced)

Basic Statistics ,[object Object],[object Object],[object Object],[object Object],[object Object]

Cp and Cpk ,[object Object],Cpk=0.0 Cpk<0.0 Cpk=2.0 LSL USL Cp=2.0 Process shift = 50% outside test limits LSL USL Cp=2.0 Mean of measurements outside test limits LSL USL Cp=2.0 No process shift

Repeatability Exercise ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Prepare reproducibility data sets ,[object Object],[object Object]

Reproducibility Table ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Reproducibility Table + Box Plot

Range Method ,[object Object],[object Object],[object Object],[object Object]

Range Table n = Number of parts d 2 * = Table values of distribution (m=appraisers, g=number of parts)

Average Range Method ,[object Object],[object Object],[object Object],[object Object]

ANOVA ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

ANOVA versus Average/Range ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Tools ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Filters ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

R&R Analysis Using SEDana

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R&R Analysis Using SEDana