Signature (Performed by) :____________________
Part No. & Name:
Characteristics:
Specifications: 6
Upper Spec # of Trials = 0 Xbar diff = 0
Lower Spec # of appraisers = 0 Rbarbar = #DIV/0! 0
Total Tol 0 # of parts = 0 #N/A
Appraiser/Trial #Part
Average1 2 3 4 5 6 7 8 9 10
A 1
2
3
Average
Range
B 1
2
3
Average
Range
C 1
2
3
Average
Range
Part AverageXbarbar = #DIV/0!
0
Rbarbar ### Rbarbar = #DIV/0!
Xbar diff # Xbar diff = 0.000000
### UCL R = #DIV/0!
Gage Repeatability and Reproducibility Study(Data Collection Sheet)
K 1 = D
4 =
K 2 = R
p =
K 3 =
Xbar a =
Rbar a =
Xbar b =
Rbar b =
Xbar c =
Rbar c =
Rp =
* UCL R
Gage Name / Type :
Gage Number:
Date:
Performed by:
Process Sigma:
Signature (Performed by) :____________________
Remarks :
*D4 = 3.27 for 2 trials and 2.58 for 3 trials. UCLR represents the limit of individual R’s. Circle those that are beyond this limit. Identify the cause and correct. Repeat these readings using the same appraiser and unit as originally used or discard values and re-average and recompute R and the limiting value from the remaining observations.
Signature (Performed by) :____________________
0
Part No. & Name: Date:
Characteristics: Performed by:
Specifications: Gage Number:
Upper Spec 0 # of Trials = 0 Xbar diff = 0
Lower Spec 0 # of appraisers = 0 Rbarbar = 0
Total Tol 0 # of parts = 0
Measurement Unit Analysis % Total Variation
Repeatability - Equipment Variation (EV) Percent Equipment Variation
EV = %EV = 100 [ EV / TV ]
= 0 Trials = Err:502
= 0 2 0.8862 = #N/A %
3 0.5908
Reproducibility - Appraiser Variation (AV) Percent Appraiser Variation
AV = SQRT{(Xbar diff x K 2)^2 - (EV^2/[(# parts) x (# trials)])} %AV = 100 [ AV / TV ]
= 0 = #N/A
= 0 Appraisers 2 3 = #N/A %
K2 0.7071 0.5231
Repeatability & Reproducibility (GRR) Percent Gage Repeatability & Reproducibility Variation
GRR = SQRT[ (EV^2) + (AV^2) ] %GRR = 100 [ GRR / TV ]
= SQRT [ 0 + 0 ] = Err:502 < 10% Acceptable
= 0 = #N/A % 10% - 30% Can be acceptable
> 30%Not Accepted
Part Variation (PV) Parts Percent Part Variation
PV = 2 0.7071 %PV = 100 [ PV / TV ]
= #N/A 3 0.5231 = #N/A
4 0.4467 = #N/A %
Total Variation (TV) 5 0.4030
TV = SQRT[ (GRR^2) + (PV^2) ] 6 0.3742 Number of Distinct Categories that can be Distinguished
= Err:502 7 0.3534 ndc = 1.41( PV / GRR )
= #N/A 8 0.3375 = #N/A
9 0.3249 = #N/A or approximately: #N/A
10 0.3146
Gage Repeatability and Reproducibility Study(% STUDY VARIATION)
Gage Name / Type :
K1 = D
4 =
K2 = R
p =
K3 =
(Rbarbar) x (K1)
K1
K3
Rp x K
3
Signature (Performed by) :____________________
0
Part No. & Name: Date:
Characteristics: Performed by:
Specifications: Gage Number: Process Sigma 6
Upper Spec 0 # of Trials = 0 Xbar diff = 0
Lower Spec 0 # of appraisers = 0 Rbarbar = 0
Total Tol 0 # of parts = 0
Measurement Unit Analysis % Total Tolerance
Repeatability - Equipment Variation (EV) Percent Equipment Variation
EV = (Rbarbar) x (K1) %EV = 100 [ EV / (Total Tol/6) ]
= 0 Trials = 100 [0 / 0 ]
= 0 2 0.8862 = #DIV/0! %
3 0.5908
Reproducibility - Appraiser Variation (AV) Percent Appraiser Variation
AV = SQRT{(Xbar diff x K 2)^2 - (EV^2/[(# parts) x (# trials)])} %AV = 100 [ AV / (Total Tol/6) ]
= 0 = 100 [0 / 0 ]
= 0 Appraisers 2 3 = #DIV/0! %
K2 0.7071 0.5231
Repeatability & Reproducibility (GRR) Percent Gage Repeatability & Reproducibility Variation
GRR = SQRT[ (EV^2) + (AV^2) ] %GRR = 100 [ GRR / (Total Tol/6) ]
= SQRT [ 0 + 0 ] = 100 [0 / 0 ] < 10% Acceptable
= 0 = #DIV/0! % 10% - 30% Can be acceptable
> 30%Not Accepted
Part Variation (PV) Parts Percent Part Variation
PV = SQRT[ (TV^2) - (GRR^2) ] 2 0.7071 %PV = 100 [ PV / (Total Tol/6) ]
= SQRT { (0)^2 - (0)^2 } 3 0.5231 = #N/A
= #N/A 4 0.4467 = #N/A %
5 0.403
Total Variation (TV) 6 0.3742 Number of Distinct Categories that can be Distinguished
TV = (Upper Spec - Lower Spec)/6 7 0.3534 ndc = 1.41( PV / GRR )
= ( - )/6 8 0.3375 = #N/A
= 0 9 0.3249 = #N/A or approximor approximately: #N/A
10 0.3146
Gage Repeatability and Reproducibility Study(% TOLERANCE)
Gage Name / Type :
K1 = D
4 =
K2 = R
p =
K3 =
K1
K3
Revision Summary :
Date Revision Summary11/24/2011 Excel Formula for Appraiser Variation Corrected : Appraiser Variation is '0',
incase of 'negative value' under Square Root Sign) - as per Page 120 of MSA Manual