简介:Inordertosolvetheproblemoflowprecisionandcomplicationofthree-dimensionalmodelingaboutmicro-segmentgear,onemethodofsettinguptheaccurate3Dmodelisintroduced.Atfirst,theequationoftheprofilecurveandthededendumtransitioncurveissetup,andthecoordinatesofthewholetoothprofilearecalculatedbytheprogramdevelopedbyDephisoftware.AndthenthedataofcoordinatesisimportedtoCatia,three-dimensionalmodelingcanbegotthroughtheoperationsofrotating,mirror,incisionandarray.Themethodusedinthispaperisaccurateandsimple,whichsuppliestheacademicbasisofCAEanalysisandvirtualdesignformicro-segmentgearandrelevantproducts.