CATIA達(dá)索官方曲面初級培訓(xùn)練習(xí)

WireframeandSurfaceDesignCATIATraining

ExercisesVersion5Release9

June2002EDU-CAT-E-WFS-FX-V5R91TableofContentsMasterExercise:MobilePhone p.3Creatingthewireframegeometry p.7Creatingthesurfaces

p.12Trimmingandjoiningthebodysurfaces

p.15Creatingthepartbody

p.19Modifyingthegeometry

p.21RecapExercise:Button p.23Creatingthewireframegeometry

p.24Creatingthesurfaces

p.26Creatingthesolid p.28Modifyingthegeometry p.31Exercise:WrenchBody p.33Creatingthesurfaceofthehandle

p.37Creatingaloftedsurfacetolinktheparts p.39Creatingthesidesurfaceofthehead p.42Creatingaconnectingsurface p.44Completingthewrenchbody p.462MobilePhoneExerciseMobilePhone:PresentationMobilePhone(1):CreatingwireframegeometryMobilePhone(2):CreatingbasicsurfacesMobilePhone(3):TrimmingandjoiningthebodysurfacesMobilePhone(4):CreatingthepartbodyMobilePhone(5):ModifyingtheGeometry3AndnowpracticeinthecontextoftheMobilephoneEntertheWireframeandSurfaceDesignworkbenchCreatethesurfaces2Trimandjointhebodysurfaces3Createthepartbody4EnterthePartDesignworkbenchModifythegeometry5Createthewireframegeometry14ExerciseMobilePhone:PresentationInthisexerciseyouwillseehowtocreateamobilephonebodyusingtheWireframeandSurfaceDesignandPartDesignworkbenches:Creatingwireframeelements(Points,splines,combinecurves,circles,lines)Creatingsurfaces(swept,extruded,revolvedsurfaces)Manipulatingsurfaces(trim,symmetry,join)Creatingsolidfromsurface(Close,fillet,shell)Modifyingthegeometry35min.5DesignIntent:MobilePhoneCreationofguideandcentercurvesbyusingcombine,lines,sketcher,andsplines.CreationofsurfacesusingSweep,ExtrudeandRevolutionOperationsonsurfacesusingTrimandJoinCreationofsolidfromsurfacesusingClose,FilletandShellModificationofthegeometrybychangingparametersofthesurfacedefinition6Createtheguidecurvesandprofiles.ExerciseMobilePhone:Creatingthewireframegeometry10min.71-Createthesepoints:(0,0,9),(40,0,7.5),(60,0,6),(80,0,5.8)and(90,0,5.8).2-DrawasplinepassingthroughthesepointsimposingatangencyconditionwiththeXaxisatthetwoextremities.3-Createthesepoints:(0,17,0),(20,20,0),(40,19,0),(60,18,0)and(90,18,0).4-DrawasplinepassingthroughthesepointsimposingatangencyconditionwiththeXaxisatthelastextremity.5-Createacombinecurveusingthetwoprevioussplinecurves.Renameit“Guidecurve1”6-Createthesepoints:(0,0,-3),(70,0,-4)and(90,0,-4).7-DrawasplinepassingthroughthesepointsimposingatangencyconditionwiththeXaxisatthelastextremity.8-Createacombinecurveusingthelastcreatedsplinecurveandthesecondsplinecurve.Renameit“Guidecurve2”.DoItYourself(1/4)Guidecurve1Guidecurve2Partused:Mobile_phone_step1-1.CATPart87-CreatethissketchintheYZplane:Renameit“Profile1”.8-Createthiscirclecenteredonthepoint(70,0,0):9-Createthecirclecenteredonthepoint(20,0,0):

DoItYourself(2/4)9DoItYourself(3/4)7-Createacombinecurveusingthefirstcreatedsplineandthesecondcircle.Renameit“Guidecurve3”.8-Createacombinecurveusingthethirdcreatedsplineandthesecondcircle.Renameit“Guidecurve4”.9-Createacombinecurveusingthefirstcreatedsplineandthefirstcircle.Renameit“Guidecurve5”.10-Createacombinecurveusingthethirdcreatedsplineandthefirstcircle.Renameit“Guidecurve6”.11-Createalinestartingfromthepoint(0,0,-300)andXdirected(whateverit’slength,itwillbeusedasanaxis).10CreatethissketchintheYZplaneandrenameit“Profile2”.DoItYourself(4/4)11ExerciseMobilePhone:CreatingthesurfacesCreateswept,extrudedandrevolvedsurfaces.10min.12DoItYourself(1/2)P1usershavetoloadthenextCATIAParttogoon.1-Createasweptsurfaceusing“Guidecurve1”and“Guidecurve2”asguidecurves,thesketch“Profile1”asprofileanditstwovertexpointsasanchorpoints.2-Createacirclesweptsurfaceusing“Guidecurve3”and“Guidecurve4”asguidecurveand“Profile2”asprofileanditstwovertexpointsasanchorpoints.3-Createacirclesweptsurfaceusing“Guidecurve5”and“Guidecurve6”asguidecurveand“Profile2”asprofileanditstwovertexpointsasanchorpoints.Note:switchontheoption“PositionProfile”forthetwoprevioussweptsurfaces.Partused:Mobile_phone_step2-1.CATPart13DoItYourself(2/2)4-Extrudethespline3usingtheZXplaneasdirection(Length=25mm).5-CreatearevolutionsurfaceusingSpline1asprofileandLine1asaxis(Angle1=0degandangle2=5deg).14ExerciseMobilePhone:TrimmingandjoiningthebodysurfacesTrimthesurfacesbyselectingthesurfaceareayouwanttokeep.5min.15DoItYourself(1/3)1-Trimthefirstcreatedsweptsurfacewiththerevolutionsurface.2-Trimtheprevioustrimsurfacewiththeextrudedsurface.Partused:Mobile_phone_step3-1.CATPart16DoItYourself(2/3)3-Trimtheprevioustrimsurfacewiththefirstcirclesweptsurface.4-Trimthelasttrimsurfacewiththesecondcirclesweptsurface.17DoItYourself(3/3)5-SymmetrizetheresultingsurfaceusingtheXZplaneasreferenceandjoinitwiththelasttrimsurface.18ExerciseMobilePhone:CreatingthepartbodyClosethebodysurfaceintoasolid,thenfilletandshellthesolid.5min.19DoItYourselfAccessthePartDesignworkbenchanddefineinworkobjectthe“Solid”body.1-ClosethesurfaceBodysurface.2-Addvariablefilletsonthetwosidetopedges(from4mmto2mm)3-Add1mmedgefilletsonthesefouredges:Partused:Mobile_phone_step4-1.CATPart20ExerciseMobilePhone:ModifyingthegeometryModifythegeometrybymodifyingaconstructionelement.5min.21DoItYourself1-Displaythesecondsplineanditspoints.2-Double-clickonPoint.6tochangeitsYcomponentvalueto16mm.Youwillmodifytheoverallshapeofthepartbychangingtheparametersofaconstructionelement.Partused:Mobile_phone_step5-1.CATPart22RecapExerciseInthisexerciseyouwillseehowtocreateabuttonbodyusingtheWireframeandSurfaceDesignandPartDesignworkbenches:CreatingtheprofilesExtrudingtheprofileCreatingthesolidpartModifyingthegeometry25min.23ExerciseButton(Step1):CreatingthewireframegeometryInthisstepyouwill:

CreatethepointsCreatetheprofilecurvesCreatethedirectionlines5min.24DoItYourself1-Create5points:Pt1(0,0,5),Pt2(0,10,9),Pt3(0,23,7),Pt4(0,30,8),Pt5(-20,30,7)2-CreateasplinepassingthroughPt1toPt43-CreatealinepassingthroughPt4andPt54-DrawasketchonXYplanewithtwocoincidencesandaradiusof20mm5-DrawaverticallineonYZplanePt1Pt2Pt3Pt4Pt5Spline.1Line.1Pt5Pt1SketchonXYplane(4-)LineonYZplane(5-)Points,Spline,Line(1-,2-,3-)Createthewireframegeometry:Button_step1.CATPart25ExerciseButton(Step2):CreatingthesurfacesInthisstepyouwill:

Createextrudedsurfaces5min.26DoItYourself1-Createthefirstextrudedsurface:selectprofileSketch.1anddirectionSketch.22-Createthesecondextrudedsurface:selectprofileSpline.1anddirectionLine.1Spline.1Line.1Sketch.1Sketch.2SurfaceExtrude.1(1-)SurfaceExtrude.2(2-)Createthebasicsurfaces:Button_step2-3.CATPart27ExerciseButton(Step3):CreatingthesolidInthisstepyouwill:CreateapadusingtheexistingsurfacesaslimitsAddfilletsonedgesShellthepart10min.28Sketch.3onXYplane(1-)Sketch.4YZplane(2-)1-Createasketch(rectangularcontour)ontheXYplane2-Createasketch(trapezoidalcontour)ontheYZplaneDoItYourself(1/2)Button_step4.CATPart29Paduptosurface(3-)Splitofpad(4-)Fillets(6-)3-CreateapadonSketch.3,uptotheExtrude.2surface4-SplitPad.1withExtrude.1assplittingsurface5-CreateapadonSketch.4uptotheExtrude.1surface6-Make1.5mmfilletsonthe6horizontalandverticaledges7-Shellthebottomfaceswith1mm(5faces)DoItYourself(2/2)Paduptosurface(5-)Shell(7-)30ExerciseButton(Step4):ModifyingthegeometryInthisstepyouwill:ModifythegeometrybymovingthedefinitionpointsofthesplineandchangingparametersintheSketcher5min.311-DoubleclickonPt3andchangetheZvalueto5mmtomodifytheshapeofthespline2-OpenSketch.1tochangetheradiusvalueto25mmPt3

Sketch.1(2-)Pointonspline(1-)DoItYourselfButton_step5.CATPart32WrenchBodyExerciseWrenchBody:PresentationWrenchBody(1):CreatingtheSurfaceoftheHandleWrenchBody(2):CreatingaLoftedSurfacetoLinkthePartsWrenchBody(3):CreatingtheSideSurfaceoftheHeadWrenchBody(4):CreatingaConnectingSurfaceWrenchBody(5):CompletingtheWrenchBody33ExerciseWrenchbody:PresentationInthisexerciseyouwilllearnhowtocreatea

wrenchbodyusingtheWireframeandSurface

DesignandPartDesignworkbenches:Creatingwireframeelements(point,line,spline)Creatingsurfaces(revolution,loft,sweep)Manipulatingsurfaces(symmetry,join)Creatingsolidfromsurface(close,extrude)35min.34DesignIntent:WrenchBodyCreationofguide,sectionandspinecurvesusingspline,sketcher,projectandsplitCreationofrevolution,loftandsweepsurfacesCreationofsolidfromsurfacesusingcloseandthick35AndnowpracticeinthecontextoftheWrenchBodyEntertheWireframeandSurfaceDesignworkbenchEnterthePartDesignworkbenchCreatethesurfaceofthehandle1Createaloftedsurfacetolinktheparts2Createthesidesurfaceofthehead3Createaconnectingsurface4Completethewrenchbody536ExerciseWrenchbody:CreatingtheSurfaceoftheHandleCreatethesurfaceofthehandlebyrevolvingasplinedefinedin3D.10min.37DoItYourself1-IntheWIREFRAMEOpenBodycreatethreepoints:(115,7,0),(122,6,0)and(127,5,0).RenamethemPointA,PointBandPointC.

2-CreateasplineselectingVertex1thenpointsAtoCandfinallyVertex2.3-Imposehorizontaltangencyattheendpointsofthespline.

4-IntheSURFACESOpenBodycreateasurface,revolvingthespline360degreesaroundthehorizontallineofthesketch.(360-degreerevolutionisneededforthedownstreamcloseoperationtocreateasolidinPartDesign).Revolvingsurface(4-)Points,Spline(1-,2-,3-)Spline1Vertex2Vertex1ABCPartused:Wrench_body_step1.CATPart38ExerciseWrenchbody:CreatingaLoftedSurfacetoLinkthePartsCreatealoftedsurfacetoassociatetheheadwiththelink.10min.39DoItYourself(1/2)PlaneandSketch.3(1-,2-)Middlepoints(4-)Sketch.4(3-)1-IntheWIREFRAMEOpenBodycreateaplanewitha7.2mmdistancefromtheendfaceofthelink.2-Onthecreatedplanecreateanarcofacircle(radius=7.2).Definethreecoincidences,twobetweentheendpointsofthearcandtheH-axisoftheSketcherandonebetweenthecenterpointofthearcandtheV-axisoftheSketcher.3-Onthebottomfaceofthehead,createanarcpassingthroughthetwoverticesoftheface(radius=24).Definefourcoincidences,twobetweenthearcandtheverticesofthebottomfaceandtwobetweentheendpointsofthearcandtheH-axisoftheSketcher.4-CreatethemiddlepointsofSketch.3,Sketch.4andoftheedgecurveofthelinkendface.OffsetplaneLinkendfaceSketch.3Sketch.4HeadbottomfaceMiddlepointsPartused:Wrench_body_step2.CATPart40DoItYourself(2/2)P1usersshouldcreatethethreesectionsloftintwotimes.Splinesandline(5-,6-)Symmetryandjoin(8-,9-)Loftedsurface(7-)5-Createthreesplines,twopassingthroughthetwosetsofendpointsofthethreearcsandonepassingthroughthesetofmiddlepointscreatedonthethreearcs.ThethreearcsareSketch.3,Sketch.4andtheedgecurveofthelinkendface.Imposeanhorizontaltangencytoeachsplineonthelinkend.6-Createalinenormaltotheendfacetothelink(length=20)fromPoint.1.7-IntheSURFACESOpenBodycreatealoftedsurfacebyselectingthreesections(Sketch.4,Sketch.3andtheedgecurveofthelinkendface),threeguidecurves(Spline.2,Spline.3andSpline.4)andaspine(Line.1).8-ApplyasymmetrytotheloftedsurfacewithrespecttotheXYplane.9-Jointheloftedsurfaceandthesymmetry.Spline.2Spline.3Spline.4Line.1S1S2S3G1G2G3Spine41ExerciseWrenchbody:CreatingtheSideSurfaceoftheHeadCreatethesidesurfaceoftheheadbyasweepingaprofile.

Theprofileandguidecurvesarecreatedfromtheexistingcurvesbyprojectionandre-limited.10min.42DoItYourself1-IntheWIREFRAMEOpenBodyextractwithtangencycontinuitytheupperandloweredgesofthehead..2-Splitsketch.4withthesidefaceofthehead.3-IntheSURFACESOpenBodydefinethesidesurface:createasweepwithaprofile(Split.1=sketch.4split)andtwoguidecurves(Extract.1andExtract.2).Partused:Wrench_body_step3.CATPartExtractededgesSidefaceoftheheadSplitofSketch.4Sidesurface43ExerciseWrenchbody:CreatingaConnectingSurfaceCreateaconnectsurfaceatajunctionbysketchingtheprofileandrevolvingit.10min.44DoItYourself1-IntheWIREFRAMEOpenBodysketchthefilletprofil