球頭刀銑削過程物理仿真的研究.pdf

1、河北工業(yè)大學(xué)碩士學(xué)位論文球頭刀銑削過程物理仿真的研究姓名：金艷麗申請學(xué)位級別：碩士專業(yè)：機(jī)械制造及其自動化指導(dǎo)教師：徐安平閻兵20040301——一登當(dāng)豈璧型蘭堡絲塑堡塞箜望窒RESEARCHoNPHYSICALSIMULATIoNOFBALL—ENDMILLINGPRoCESSABSTRACTInordertomeettherequirementforthedevelopmentofadvancedmanufacturing，thed

2、issertationdealswiththeballendmillingintheVirtualManufacturingtechniquebymeansofdifferentialgeometrymetalcuttingtheoryandmachinetooltestingtechnologycomputergraphicsandcomputersimulationtechnologyetc11mphasesareplacedont

3、hemodelingandsimulationofmillingforce，themilledsurfacegenerationmechanismandmilledsurfacetopographysimulationmethodThecreativecontributionsmaybesummarizedaSfollows：(1)Intheaspectofdescribingthegeometryoftheball—endmill，t

4、heparametricformulaofcuttingedgeandlocalcoordinates＆relativevectorexpressionsforconstantleadballendraillarcinduced(2)Intheaspectofmodelingandsimulationofmillingforce，basedonanapproachfordescribingtheballendmillMoreoverat

5、hreedimensionalballendmillingforcemodelisformulatedandcorrespondingmillingforcecoefficientsidentificationalgorithmisdeveloped(2)Intheaspectofmilledsurfacegenerationtheoryandsimulationformilledsurfacetopographyamilledsurf

6、acegenerationmodelfortheballendmillingisproposedandformulatedInthemeantime，thecorrespondingsimulatedthree—dimensionalsurfacetopographyandcontouraregraphicallypresentedThetrajectoryequationofcuttingedgerelativetoworkpiece

7、isderivedThenathree—dimensionaltopographysimulationalgorithmisdevelopedthroughdividingtheworkpieceintoregulargidsThisalgorithmCancompletelyemulatethemillingprocessFinallythequalityofthemilledsurfaceisevaluatedbymeansofRM

8、S(RootMeanSquare)(3)Intheaspectofexperimentresearch，aseriesofexperimentshavebeencarriedoutusingball—endmillstogetmillingforcedataBycomparisonwiththepredictedmillingforce，itisshownthatthesimutationerrorsissmall，whichprove

9、sthecorrectnessofthemodelTheworkinthisdissertationwillestablishasolidfoundationforimprovingprocessmodelingintheVirtualManufacturingtheory，forimprovingthestabilityandthesecurityandmachiningqualityinthemillingprocess，andfo