ABSTRACT
Fig.4.10Analyticalpresentationofabsolutethicknesstolerancesspecified byInternationalStandardISO3574forcoldrolledproducts[9].
Relativetolerances-TherelativethicknesstolerancesYcanbereadilycalculatedfromtheabsolutetolerancesusingthefollowingformula:
e Y=-X100%
h (4-17)
Figures4.11through4.15graphicallyillustratetherelativethicknesstolerancesforcoldrolledproductsthatwerecalculatedusingEq.(4-17).Theserelativetolerancesutilizetheabsolutethicknesstolerancesthatarespecifiedbyvariousstandardsandareapproximatedbyusingregressionanalysiswiththe followingequation:
y(4-18)
where A,B,C,D,w0=constants(Figs.4.11through4.15).