Page 194 - Six Sigma for electronics design and manufacturing

PART AVERAGE 0.5667 1.0083 0.8000 0.8250 0.4583 1.0167 0.9417 0.7833 1.0083 0.6667 0.55833 0.9045 0.93455

C Range 0.05 0.05 0 0 0.05 0.05 0 0 0 0.05 0.25 0.0250 Rp PV TV

C Average 0.525 1.025 0.8 0.8 0.475 1.025 0.95 0.8 1.05 0.825 8.275 = R c 16.55 0.8275

=
C 2nd trial 0.55 1 0.8 0.8 0.5 1.05 0.95 0.8 1.05 0.8 8.3 Sum c = X c X

C 1st trial 0.5 1.05 0.8 0.8 0.45 1 0.95 0.8 1.05 0.85 8.25

B Range 0 0.1 0.05 0.05 0 0.05 0.05 0.05 0.05 0.05 0.45 0.0450
GR&R example B Average 0.55 1 0.775 0.775 0.4 1.025 0.925 0.725 0.975 0.525 7.675 = R b 15.35 0.7675

Table 5.7 B 2nd trial 0.55 0.95 0.75 0.75 0.4 1.05 0.9 0.7 0.95 0.5 7.5 = Sum b = X b 0.0600 ± 0.500

B 1st trial 0.55 1.05 0.8 0.8 0.4 1 0.95 0.75 1 0.55 7.85 X diff =

A Range 0.05 0 0.05 0.1 0.1 0 0 0.05 0 0.1 0.45 0.0450 = 0.0383 Specification
Average 0.625 1 0.825 0.9 0.5 1 0.95 0.825 1 0.65 8.275 R a
A = 16.55 0.8275 – – R tolerance
=
A 2nd trial 0.6 1 0.8 0.95 0.45 1 0.95 0.8 1 0.7 8.25 Sum a = X a

1st trial 0.65 1 0.85 0.85 0.55 1 0.95 0.85 1 0.6 8.3
A
Operator Sample 1 2 3 4 5 6 7 8 9 10 Totals

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