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CPK - Bidirectional Tolerance |
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X-Bar = R-Bar-Values |
Calculations :- |
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Sr. No. |
X1 |
X2 |
X3 |
X4 |
X5 |
XBAR |
Range |
1 |
1.02 |
1.03 |
1.02 |
1.00 |
1.05 |
1.02 |
0.05 |
2 |
1.05 |
1.03 |
0.99 |
1.04 |
1.01 |
1.02 |
0.06 |
3 |
1.03 |
1.00 |
1.00 |
0.99 |
1.00 |
1.00 |
0.04 |
4 |
1.04 |
1.03 |
1..02 |
0.99 |
1.00 |
1.02 |
0.05 |
5 |
0.99 |
0.98 |
1.03 |
1.01 |
1.02 |
1.01 |
0.05 |
6 |
0.98 |
1.00 |
1.02 |
1.03 |
1.03 |
1.01 |
0.05 |
7 |
0.98 |
1.03 |
1.04 |
1.04 |
1.02 |
1.02 |
0.06 |
8 |
1.03 |
1.03 |
1.01 |
1.05 |
1.02 |
1.03 |
0.04 |
9 |
1.01 |
1.03 |
1.02 |
1.02 |
1.00 |
1.02 |
0.03 |
10 |
1.02 |
1.06 |
1.03 |
1.01 |
1.03 |
1.03 |
0.05 |
11 |
1.05 |
1.02 |
1.00 |
1.01 |
1.02 |
1.02 |
0.05 |
12 |
1.00 |
1.01 |
1.02 |
1.02 |
1.02 |
1.01 |
0.02 |
13 |
1.02 |
0.97 |
0.99 |
0.98 |
1.04 |
1.00 |
0.07 |
14 |
1.03 |
1.00 |
1.03 |
1.05 |
0.98 |
1.02 |
0.07 |
15 |
1.03 |
1.01 |
0.98 |
1.01 |
0.97 |
1.00 |
0.06 |
16 |
1.05 |
1.02 |
0.97 |
1.00 |
1.03 |
1.01 |
0.08 |
17 |
0.99 |
1.06 |
1.05 |
1.00 |
1.03 |
1.03 |
0.07 |
18 |
1.00 |
1.04 |
1.03 |
1.02 |
1.03 |
1.02 |
0.04 |
19 |
1.01 |
1.07 |
1.01 |
1.03 |
1.02 |
1.03 |
0.06 |
20 |
1.00 |
0.97 |
1.02 |
1.02 |
1.03 |
1.01 |
0.06 |
21 |
1.04 |
0.98 |
1.03 |
1.02 |
1.02 |
1.02 |
0.06 |
22 |
1.02 |
1.03 |
0.98 |
1.00 |
1.00 |
1.01 |
0.05 |
23 |
1.00 |
1.05 |
1.05 |
1.03 |
1.05 |
1.04 |
0.05 |
24 |
0.96 |
1.03 |
1.05 |
1.02 |
1.03 |
1.02 |
0.09 |
25 |
0.98 |
1.03 |
1.05 |
1.02 |
1.02 |
1.02 |
0.07 |
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X-Bar-Graph |
Sample No. |
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
10 |
11 |
12 |
13 |
14 |
15 |
16 |
17 |
18 |
19 |
20 |
21 |
22 |
23 |
24 |
25 |
UCL |
1.05 |
1.05 |
1.05 |
1.05 |
1.05 |
1.05 |
1.05 |
1.05 |
1.05 |
1.05 |
1.05 |
1.05 |
1.05 |
1.05 |
1.05 |
1.05 |
1.05 |
1.05 |
1.05 |
1.05 |
1.05 |
1.05 |
1.05 |
1.05 |
1.05 |
LCL |
0.99 |
0.99 |
0.99 |
0.99 |
0.99 |
0.99 |
0.99 |
0.99 |
0.99 |
0.99 |
0.99 |
0.99 |
0.99 |
0.99 |
0.99 |
0.99 |
0.99 |
0.99 |
0.99 |
0.99 |
0.99 |
0.99 |
0.99 |
0.99 |
0.99 |
Mean |
1.02 |
1.02 |
1.02 |
1.02 |
1.02 |
1.02 |
1.02 |
1.02 |
1.02 |
1.02 |
1.02 |
1.02 |
1.02 |
1.02 |
1.02 |
1.02 |
1.02 |
1.02 |
1.02 |
1.02 |
1.02 |
1.02 |
1.02 |
1.02 |
1.02 |
| X-Bar |
1.02 |
1.02 |
1.00 |
1.02 |
1.01 |
1.01 |
1.02 |
1.03 |
1.02 |
1.03 |
1.02 |
1.01 |
1.00 |
1.02 |
1.00 |
1.01 |
1.03 |
1.02 |
1.03 |
1.01 |
1.02 |
1.01 |
1.04 |
1.02 |
1.02 |
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| UCL = X + A2*R = |
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1.05 |
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For sample size of 5 Nos. ; A2 = 0.58 |
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| LCL = X - A2*R |
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0.99 |
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For sample size of 5 Nos. ; A2 = 0.58 |
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1.02 |
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0.06 |
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Cpk Achieved :- 2.0816 |
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R-Bar-Graph |
Sample No. |
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
10 |
11 |
12 |
13 |
14 |
15 |
16 |
17 |
18 |
19 |
20 |
21 |
22 |
23 |
24 |
25 |
UCL |
0.12 |
0.12 |
0.12 |
0.12 |
0.12 |
0.12 |
0.12 |
0.12 |
0.12 |
0.12 |
0.12 |
0.12 |
0.12 |
0.12 |
0.12 |
0.12 |
0.12 |
0.12 |
0.12 |
0.12 |
0.12 |
0.12 |
0.12 |
0.12 |
0.12 |
LCL |
0.00 |
0.00 |
0.00 |
0.00 |
0.00 |
0.00 |
0.00 |
0.00 |
0.00 |
0.00 |
0.00 |
0.00 |
0.00 |
0.00 |
0.00 |
0.00 |
0.00 |
0.00 |
0.00 |
0.00 |
0.00 |
0.00 |
0.00 |
0.00 |
0.00 |
R-Bar |
0.06 |
0.06 |
0.06 |
0.06 |
0.06 |
0.06 |
0.06 |
0.06 |
0.06 |
0.06 |
0.06 |
0.06 |
0.06 |
0.06 |
0.06 |
0.06 |
0.06 |
0.06 |
0.06 |
0.06 |
0.06 |
0.06 |
0.06 |
0.06 |
0.06 |
Range |
0.05 |
0.06 |
0.04 |
0.05 |
0.05 |
0.05 |
0.06 |
0.04 |
0.03 |
0.05 |
0.05 |
0.02 |
0.07 |
0.07 |
0.06 |
0.08 |
0.07 |
0.04 |
0.06 |
0.06 |
0.06 |
0.05 |
0.05 |
0.09 |
0.07 |
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| UCL = R-Bar * D4 = |
0.12 |
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For sample size 5 D4 = 2.11 & D3 = 0.00 |
| LCL = R-Bar * D3 |
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0.00 |
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1.02 |
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0.06 |
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Cpk Achieved :- 2.0816 |
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