catia钣金设计教程-课件

1钣金设计CATIA培训教程2课程介绍先修课程:CatiaV5基础CatiaV5零件设计CatiaV5装配设计CatiaV5工程图设计:

课程目的本课程研究利用CATIAV5建立和编辑修改钣金特征和零件的方法。学员对象从事CatiaV5钣金设计的用户3目錄鈑金設計基礎1鈑金設計概述 工作臺介紹:使用者介面、術語、一般過程2

鈑金參數3

鈑金壁板（Walls）4

鈑金彎曲（Bends)和凸緣(Flanges)5鈑金沖孔（CutOuts），平面陣列模式及特徵6

生成2D鈑金展開視圖7

修改鈑金零件沈飞工学院4进入工作台用户接口术语

了解一般过程介绍钣金设计工作台catia钣金设计教程5进入工作台

可以从1-开始菜单

2-档菜单

3-工作台工具

进入钣金设计工作台，建立一个包含几何元素的

PartBody1-2-3-6文件扩展名.CATPart(与普通零件设计相同)钣金设计工具...钣金参数零件树标准工具栏特征...钣金设计用户接口:进入草图器...钣金参数7Insert菜单或工具栏

钣金设计用户接口:钣金设计工具扫掠壁板（Walls）冲压（Stampings）展开（Unfold）钣金工具弯曲（Bend）数组（Patterns）增强复制（PowerCopy）8术语

零件－由一个或多个壁板、弯曲和特征组成参数－通常是指设计零件的壁板厚度、弯曲半径和起伏类型的值起始壁板－用草图（轮廓）生成，可以是一个或一组拉伸壁板特征－施加在零件上的形态，如：冲孔、数组和冲压等9GeneralProcessFromAssembly>createanewpart(Top-downapproach)orCreateanewpart>insertinassembly(Bottom-upapproach)AssignMaterialParametersCreatedifferenttypesofwallsAdd冲孔and3DFeaturesAdddifferenttypesof弯曲ModifyWallThicknessandWallSizesCreatingaFlatViewofthepart10钣金ParametersInthislesson,youwillseehowtostarta钣金partbyassigningthebasicparameterneededtocreatethepart.Defining钣金Parameters11Beforestartingtocreateany钣金part,definethe钣金Parametersofthepart.Thesearecommoncharacteristicsthatwhendefinedwillmakecreationeasierandthuslimityourneedtosupplydataduringcreationofthepart.catia钣金设计教程ParametersTabBendExtremitiesTab12Parametersarethecommoncharacteristicusedinthecreationofthepart.Theyareassimpleasstatingthedimensionalrequirementofthematerialandbendradiuscatia钣金设计教程ItisimportanttonoteherethatonlyonesetofparameterscanbeassignedinaCATPart,thereforeyouarelimitedtoonepartperdocument.13Inordertostarttherearethreebasicparametersthatneedtobeassigned:MaterialThicknessBendRadiusBendReliefTypeWhatParametersneedtobedefined?BendRadiusTypesofdifferentBendReliefsSquareReliefMinimumwithnoreliefRoundReliefLinearTangentMaximumMaterialThicknessRemember,theBendRadiusassignedhereisthestandardBendRadiustobeusedonthepart.ThiswillbeusedtocreateallBendRadiiunlessspecifiedotherwiseduringthecreation.14catia钣金设计教程Selectthe钣金ParameterIcon1ActivatetheParameterstabinthe钣金Parameterswindow2WiththeThicknessfieldactive,keyinthenewvalue3IftheMaterialThicknessisallyouarechanging,selectOKtoendthemodification4Createparts15catia钣金设计教程Selectthe钣金ParameterIcon1ActivatetheParametersTabinthe钣金Parameterswindow2KeyinthenewBendRadiusBendradiicanbeassmallas0.01mm.0Radiusisnotavailableyet.34SelectOKCreateparts16catia钣金设计教程Selectthe钣金ParameterIcon1SelecttheBendExtremitiesTabinthe钣金Parameterswindow2SelectthetypeofBendReliefdisplayedinthewindow3Thereliefwithitsdimensionsaredisplayed4IftheBendRadiusisallyouarechanging,selectOKtoendthemodification5Wherepossiblebendreliefvalues,L1andL2canbemodifiedtosuityourspecialneedsCreateparts17Inthislesson,youwillseehowtostarta钣金partanddifferentwaystodefinewallscatia钣金设计教程DefiningWallsfromScratchDefiningWallsonExistingParts

钣金Wallsrecapexercise18Youwilllearnhowtocreatethe5basictypesofwallsofferedinthe钣金workbenchcatia钣金设计教程ProfilewallWallonEdgeExtrudedWallRolledWallPiercedWall19Tostarta钣金part,createsometypeofwallfirsttostartfrom.Itcanbeaslittleasonelinethatyoucanextrudeawallfromoracomplexprocreatemanywallsfromorapromakeanindividualwall.catia钣金设计教程Beawarethatwhereyouselectedges,topvsbottomwilldriveadifferentproposalforyourwall.Forexample,atopselectionmayforceyourwalltogoinanupwarddirectionwhileabottomselectionmayforceyourwallinadownwarddirection.Anexampleofhowdifferentwayscouldbeusedtocreatethispartisasfollows:Wall1couldhavebeencreatedfirstasaflatproandthenwalls2,3,and4couldhavebeendoneaswallsonedgeWall1,2,and3couldhavebeencreatedwithanextrudeandthenwall4couldhavebeendoneasawallonedge123420TheProisusedtocreateawallofaspecificshape.OftenusedasafirstwallofapartWhentousethevarioustypesofwalls?TheExtrudedwallsareusedtocreateagroupofwallsusingaspecificprofile.Hereitisusedtobuildasimple“U”shapedchassisorahatsectionusedtostrengthenotherparts.TheWallonEdgeisusedtocreateawallonanedgeofanexistingwall.Youcanalsoselectanedge,clickonthewalliconanddrawthesketchyouwant21catia钣金设计教程EntertheSketcheronxyplaneandselecttheproDrawtheSketchExitSketcherandselecttheproiconGrowtharrowdefaultsupward.Ifneeded,invertbutton3124SelectOKtocreatethewall5Remember,thedirectionofgrowtheffectshowthewallwillbemodifiedifyouchangetheMaterialthicknesslater

growtharrow22catia钣金设计教程EntertheSketcheronxyplaneandselecttheproDrawtheSketchExitSketcherandselecttheproiconGrowtharrowdefaultsupward.Ifneeded,invertbutton3124SelectOKtocreatethewall5Remember,thedirectionofgrowtheffectshowthewallwillbemodifiedifyouchangetheMaterialthicknesslater23catia钣金设计教程SelectthewallonedgeiconSelectOKtocreatethewall512Keyinthenewvaluesandselectadimensionoptions3Toreversesketchpro,selectthisbutton4Selecttheedgetoattachthewalltoo6Selectthe“WithBend”optiontoautomaticallycreatethebend24catia钣金设计教程Note:thereferencewallisnotimpactedbythenewwallSelectthewallonedgeiconSelectOKtocreatethewall12Keyinthenewvaluesandselectadimensionoptions3Selecttheclearanceoption.Thevalueisbydefaultdrivenbybendradius4Selecttheedgetoattachthewallto6Selectthe“WithBend”optiontoautomaticallycreatethebend525catia钣金设计教程Note:inthetree,eachwalliscreatedseparatelyundertheextrusion.Nosketchesforthewallsarecreated;thesketchfortheoriginalprokept.Keyorselecttheextrusionparameters.EntertheSketcheronxyplaneandselecttheproSketchtheprofile12ExitSketcherandselectthe

Extrusionwallicon3SelectOK45Thewallscanbecreatedononeorbothsidesofthesketch(SecondLimit).Also,thematerialthicknesscanbeineitherdirectionorsymmetricallyaroundtheprofile

(symmetricalthicknesscheckbox)26catia钣金设计教程MB3onExtrusionorEdgeWallandselectitemobjectandIsolate1IfanExtrusion,Selectawall25localaxis,6sketchesandsomecoincidenceconstraintsareautomaticallycreatedforthisextrusion.Canbeperformedon:extrusionwallswallonedgeYoucannotundoanIsolateactionafterhavingmodifiedthewall.IsolatingaWallonEdgeerasesallupdatingdata.27catia钣金设计教程EntertheSketcheronxyplaneandselecttheproDrawtheSketchExitSketcherandselecttheExtrudeiconKeyorselecttheextrusionparameters.3124SelectOKtocreatethewall5RememberthedirectionofgrowtheffectshowthewallwillbemodifiedifyouchangetheMaterialthicknesslater28DefiningWallsonExistingPartsYouwilllearnhowtodefinewallsonexistingsolidparts29Anotherwaytostartcreating钣金wallsistotakeanexistingsolidandrecognize(=change)thesolidwallsinto钣金walls.catia钣金设计教程Beawarethatanycutoutsinthepart,whenitisrecognized,canonlybemodifiedinthePartDesignworkbench.ReferenceWall30catia钣金设计教程

2Wallcreationmodes:

Partbodyrecognition:thewholesolidisprocessedandwallsarecreatedwhereverpossible.Onlyselectedfaces:onlyexplicitlyselectedfacesofthesolidareprocessedandthecorrespondingwallsarecreated.Compulsorywalls-arefacesfromwhichthewallsaretobegeneratedwhentheremightbeanambiguity.Forexample,iftheinitialpartisabox,youwillneedtoselecttwooppositeinnerfacesandouterfacesontheothertwosidesofthebox,inordertoavoidoverlappingwhengeneratingthewalls.

Internalprofilesrecognitionmode:

Ascutoutwall:generateswallswithinnercontours(nocutoutfeatureisgenerated)Onecutoutbywall:regardlessofhowmanypocketsthereareonafaceofthesolid,onlyonecutoutfeatureisgeneratedperwallOnecutoutbyprofile:foreachinnercontouronthesketch-basedsolid,

acutoutfeatureisgeneratedNone:whethertherearepocketsonthesolidfaces,ornot,nocutoutfeatureiscreatedintheresulting钣金features.31catia钣金设计教程ChangestoGeometrywillhavetobedonefromtheoriginalcreationgeometryinthePartDesignworkbenchSelecttheRecognizeicon214SelecttheUnfoldiconTheTreeisupdatedwiththeNewWallsSelecttheFaceoftheReferenceWallThethicknessoftheshellandtheradiusoftheFilletaretakenasthedefaultvaluesintheSheetMetalParameters.53SelecttheDefinitionparameters32钣金弯曲and凸缘Inthislesson,youwillseehowtoadd弯曲toapartandalsoseesomedifferenttypeof凸缘thatcanbeusedwhencreatingpartsDefining弯曲betweenWalls

DefiningDifferenttypesof凸缘available

钣金弯曲and凸缘recapexercise33弯曲canbecreatedbyfourways.Ifyouchoose,youcancreateyourbendeachtimeyoucreateawallonanotherwalloryoucancreateabunchofwallsthatshowhowyourpartwilllookandthenuseAutomatic弯曲tocreateallofthematonetime.catia钣金设计教程SingularBendAutomatic弯曲Conical弯曲弯曲

fromflat34A钣金partiscreatedfromonepieceofmetalthatiscuttotheshapeneededandfoldedtocreatethepart.Thesefoldsarewhatiscall弯曲.catia钣金设计教程BendBendReliefBendReliefisthematerialcutout(removed)toallowthefoldingofthepartwithouttearingthematerialorcausingitdeform35InV5,thenewmethodologyistocreategroupsofwallswhichhaveacommonbendsize.Allowingagroupofwallstobecreatedallatonetimeandsavethestepsofhavingtoconfirmthedirectioneachtime.WhentouseAutomatic弯曲?Incaseswhereyouhavenon-standard弯曲,youwillhavetousethesingularbendcapabilityanddefinedirection.Therefore,itisimportanttomakesureyourstandardbendisthemostcommonbendsizeonyourpart.SingularBendCreatedfirstAllother弯曲arecreatedwithAutomatic弯曲36catia钣金设计教程Today,thedirectionofthebendischosenforyou.Displaythepartyouwishtohavethe弯曲addedtoo.SelecttheAutomaticBendicon12Allofthebendradiiarecreatedatthedefaultvalue.37catia钣金设计教程Bendarrowscanbeselectedtoreversethemandthedirectionofthebend.Selecteachofthewallsinvolvedinthebend2SelecttheBendicon1TheBendDefinitionwindowisdisplayedindicatingtheWallsinvolved,radiusvalueandangularvalue3Thebendarrowsaredisplayedshowingthewallbenddirection4Thebendandrelief’sarecreatedasassignedintheoriginalparameterswindow38catia钣金设计教程Bendarrowscanbeselectedtoreversethemandthedirectionofthebend.Selecteachofthewallsinvolvedinthebend2SelecttheConicalBendicon1TheBendDefinitionwindowisdisplayedindicatingtheWallsinvolved,radius

valuesandangularvalue3Thebendarrowsaredisplayedshowingthewallbenddirection439catia钣金设计教程Sketchalineonthefuturebendarea1TheBendFromFlatDefinitionwindowisdisplayedindicatingtheSketch

involved,radiusvaluesandangularvalue3SelectOK4Selectthe

BendFromFlaticonandthesketch240catia钣金设计教程ThisprocesscanalsobeusedtocreateabendbyselectingtheequationiconSelecteachofthewallsinvolvedinthebend2SelecttheBendicon1TheBendDefinitionwindowisdisplayedindicatingtheWallsinvolved,radiusvalueandangularvalue3KeyinthenewvalueintheBenddefinitionwindow.MakesurethebendarrowsarepointingintheproperdirectionRight-clickintheRadiusfieldandselectFormula/Deactivate45Thebendandrelief'sarecreatedasassignedintheoriginalparameterswindow41catia钣金设计教程2Youhaveseveralshapesforrelieves:round,square,triangular.SelecttheMorebuttonandswitchtoBendCornerReliefTabandactivatetheCornerReliefoption3Double-clickonthebendtoeditit1ClickOKtovalidateYoucanalsodefinetheCornerReliefintheSheetMetalParameters42catia钣金设计教程SelecttheCornerReliefIcon,thesketchandthethreeimpacted弯曲directlyonthegeometry3Unfoldthepart;TheUserCornerReliefmustbedoneontheunfoldedpart1SketchthedesiredprofilesfortheCornerReliefArea2SelectOK4Youcanalsohaveaccesstoacatalogofpre-definedsketchesinsteadofdrawingyourownsketch.43凸缘comeinfourdifferenttypes:RegularFlange,HemBend,TeardropandSweptFlange.catia钣金设计教程RegularFlangeHemBendTearDropSweptFlange44凸缘aredifferentwaystoform钣金intotabs,wallsandedgesthatgivefunctionality,beauty,strengthandsafetytothepart.catia钣金设计教程45Regular凸缘areusedtocreatetabsincutoutsandsimple凸缘aroundtheedgesofpartsWhentousethevarioustypesof凸缘?TearDropscanalsoservetocreatedecorativeedgesaswellascreatethingslikehingepinsopeningsHem弯曲areusedtostrengthenlongthin钣金partsandtoalsosupplyasmoothsafeedgeSwept凸缘areusedtosweepprofilesaroundexterioredgesofparts.46catia钣金设计教程Note:theedgesselectedcanbeonesingleedge,straightorcurvedoranynumberofeitheraslongastheyareconnected.SelecttheFlangeicon1Selecttheedges2KeyinananglevalueKeyintheradiusvalue3Keyinthelengthvalue45SelectOKtocreatetheflange647Theminimumradiusacceptedis.01mmKeyinalength4SelectOKtocreatetheHembendSelecttheHemBendiconSelecttheedgeKeyinaradiusvalueAswithanyflange,multipleedgescanbeselectedtowrapitaroundthepart.5catia钣金设计教程12348SelecttheTearDropBendiconKeythelengthSelectanedge2Keyintheradius3SelectOKtocreateTearDropBend4catia钣金设计教程15Thelengthdimensioncannotbelessthentheradiusbutitcanbethesame;allowingyoutocreateahingepinopening.49catia钣金设计教程Onlyasinglelineprotobecreatedhere.TheflangekeywilladdthethicknesspertheparameterscharacteristicsSelecttheSweptFlangeiconSelecttheSpinethebendistobelocatedon.2SelectOKtocreatetheflange4Selecttheprobeswept13Theelementconnectingtotheedgemustbetangentandcoincidentwiththeedge.50钣金CutOuts,FlatPatternModeandFeaturesInthislesson,youwillseehowtoaddCutOutstoparts,patternthem,aswellashowtomakeuseofthe3DFeaturesavailable.DefiningCutOutsinWallsGoingtoFlatPatternModeDefininga3DFeature钣金CutOuts,PatternsandFeaturesrecapexercise51Inthe钣金workbenchtherearenoHolesorPocketiconsasinthePartDesignworkbench.Openingsina钣金partarealldonewithaCutOuticon.catia钣金设计教程52ACutOutisanyopeningina钣金wall.Itcanbeanything,fromassimpleascircularholetoamorecomplexcutout.CutOutscanbepatternedjustasinthePartDesignworkbench.catia钣金设计教程TheCutOuticonisverysimilartothePocketiconinthePartDesignworkbenchandhasallofthedepthcapabilitiessuchas“UptoNext”and“UptoLast”Acut-outcanbecreatedwithanopencontoursketch.53CutOutsareusedtosubtractmaterialtocreateahole,pocket,notch,slot,oranyothertypeopening.Theycanbeassimpleasacircleormorecomplexbyhavingmanyline,arc,splinesegments.WhentouseCutOuts?Aftercreatingawall,itispossibletoaddadditionalslotsontheexteriorofthewall,addnotches,orchamferswithcutoutswithoutmodifyingthewallsketch.InternalwallCutOutsCutOutusedtomodifyanexistingwall54catia钣金设计教程Tip:For钣金parts,theuseof“UpToNext”willmakemodificationeasier.CreatetheprothecutoutusingthesketcherSelectOK1SelecttheparametersofthecutoutReturnto3DandselecttheCutouticon245Selectthepromakeitactive3Tip:“UsingUptoLast”allowsforthecutouttogothroughbothwallswithonetreeentry55catia钣金设计教程YouhavetwowaystocreateCorners:selecteachedgeorselectthe“SelectAll”buttonSelecttheCornersiconKeyintheradiusvalue31SelectOK4Selecttheedge(s)2IfyouchecktheConvexEdge(s)buttonandyouselectaconcaveedge,awarningisissuedindicatingthatyoudidnotselectanedgecorrespondingtotheactivetype.Onceyouhaveselectedanedge,youcannolongermodifythecheckboxoptions,unlessyoucanceltheselection.56catia钣金设计教程YouhavetwowaystocreateChamfers:selectSharpedgeorWeldiconSelecttheChamfericonSelectoptionsandKeyvalues41SelectOK5Selectthetype:2Selecttheedge(s)3SharporWeld57catia钣金设计教程RectangularPatternCircularPatternUserPatternSeveralParameterconfigurations.Oneachcase,filltwoofthethreeparameters.Thereferencedirectionelementcanbeselecteddirectlyonthegeometry(edges).The“CompleteCrown”Parameterisveryusefultoinstantiateafeatureallaroundacrown.Fortheposition,selectasketchcontainingpointswherethenewfeatureswillbeinstantiated.58catia钣金设计教程2SelectthePatterniconSelectOKtocreatethepatternDefinethepatternparameters314SelecttheCutOuttopatternNote:instancesofthepatterncanbeturnedoffachieveastaggeredpattern59Whendesigninga钣金part,youmayfindtimeswhenyouneedtoseethepartinitsFlattenedstateforcheckingoraddingphysicalcutouts.catia钣金设计教程Thepartcanalsobedisplayinfoldedandtheunfoldedstatesintwodifferentwindowsatthesametime60FlatPatternModeiswhenyouareviewingthe钣金partinit’sunfoldingcondition.Allowingallofthecutouts,edges,bendlimitsandfootprintstamptobedisplayedcatia钣金设计教程Note:therearetimeswhenelementswillnotbedisplayedinFlatPatternMode.Forexample,ifawalldoesnothaveabendassignedtoit.Also,ifastampfeatureiscreatedoverthelimitbetweenseveralsupports,suchaswalls,弯曲,andsoforth,thisstampisalsonotvisible.61FlatPatternModeshouldbeusedwhenaCutOutwillbepartofmorethanonewallandgothroughabend.Thisallowsittobelocatedfromtheedgesontheflattenedpatternofthepart.WhentouseFlatPatternMode?AnotheruseofFlatPatternModeistobeabletolocateanyoverlapofwalls.Typically,thisoccurswhere凸缘overlapeachother.InternalwallCutOuts凸缘areOK凸缘areoverlaped62catia钣金设计教程1SelecttheUnfoldiconTorefoldthepartsimplyselecttheiconagain2Acopyofthepartismaintainedinflatmodeduringthecreationofthepart,makingitquicktoswitchfromonemodetotheother.CutOutsorWallscreatedin3Dmustbemodifiedin3D.Likewise,cutoutsmadeinFlatPatternModemustbemodifiedinFlatPatternMode.Thepartisunfoldedaccordingtothereferencewallplane63SelectOK,asketchoftheoverlapzoneiscreatedanddisplayedonthetreecatia钣金设计教程Switchtothe钣金ProductionWorkbench1SelecttheUnfoldicon2SelecttheCheckOverlappingicon3Theoverlapzoneishighlightedandawindowisdisplayed4+64catia钣金设计教程SelecttheMapCurvesicon1SelecttheCurveonthe3Dgeometryorinthetree23Note:youmustbeintheunfoldedviewSelectOK,twosketchesoftheoverlapzonearemappedontheir3DplaceRefoldthepart,youcannowmodifyitaccordingtothesketches465SelecttheCutOuticon4DefinetheCutOutparametersSelecttheUnfoldiconCreateasketchapproximatelythesamesizeatthesamelocationSelecttheflatsurfacetosketchonSelecttheicontorefoldthepart5catia钣金设计教程2316CutOut’screatedinFlatPatternModecanalsobepatterned66Designinga钣金part,youwillfindaneedtouse3DFeatures(Stamps)suchasanextrudedholeorabridge.TheCATIA钣金workbenchprovidessomeofthecommonStampsFeaturesorallowsuser-definedones.catia钣金设计教程67AStampFeatureisacommonpieceofgeometryusedincreating钣金partsthroughastampingand/ordieprocess.Itcomeswithparametersthatcanbemodifiedtochangeitsshapeorsizeandsometimesrequiresasketchtocompleteit’screationcatia钣金设计教程Stampfeaturescanhavecutoutsinthem.68ShownbelowarethevarioustypesofFeaturesavailable.WhattypesofStampFeaturesareavailable?ExtrudedHoleFeaturePointStampFeatureLouverFeatureStiffeningRibFeatureSurfaceStampFeatureCurveStampFeatureBridgeFeatureUserdefinedFeature69Note:Youcannotselectthedirectionarrowtoreverseit.InsteaduseMB3onthesketchinthetreeandthenselecttheChangeSketchSupportitem.Next,selecttheothersideofthewalltoreversethedirection.SelectthePointStampiconSelectthesurfacetostamp2catia钣金设计教程134DefinethePointStampParametersDefinethedirectionoftheextrudeSelectOK570catia钣金设计教程EachfeaturehasaSketchattachedtoitwherethelocationaldataiscontained.Whichcanbeusedformodification.SelecttheExtrudedHolestampicon213SelectthesurfacetostampAswiththeHoleiconinPartDesign,Pre-Selectingtwoedgesallowslocationconstraintsforthefeaturetobecreated.DefinetheExtrudedHoleStampParametersSelectOK471catia钣金设计教程Extendingthesketchlineoffthepart,theendwillremainopenwherethestampingleavesthepart.Create/SelectaSketchelementSelecttheCurveStampicon213Thisfeaturerequiresthatanopensketchbeactivetocreateit.DefinetheCurveStampParametersSelectOK472catia钣金设计教程SelecttheSurfaceStampicon2Create/Selectasketch13ThisfeaturerequiresaclosedsketchtobecreatedDefinetheSurfaceStampParametersSelectOK473catia钣金设计教程SelecttheBridgeicon21Selectthesurfacetostamp3DefinetheBridgeParametersSelectOK474catia钣金设计教程Thesketchmustbetheprothecutout,butcannothavetangencyonthebottom/openedge.SelecttheLouvericon213Create/SelectaSketchDefinetheLouverDefinitionParametersSelectOK475catia钣金设计教程Pre-Selectingtwoedgesallowslocationconstraintsforthefeaturetobecreated.SelecttheStiffeningRibiconSelecttheexteriorsurfaceofthebend.213DefinetheStiffeningRibParametersSelectOK476catia钣金设计教程Pre-Selectingtwoedgesallowslocationconstraintsforthefeaturetobecreated.Selectthesurfacetostamp243DefinetheUser-DefinedStampParametersandselectthePunchand/orDiebodiesinthetree.SelectOKtovalidateSelecttheUserStampingicon177钣金2D(Flatten)ViewCreationInthislesson,youwillseehowtocreatea2D(Flatten)Viewofa钣金partCreatinga2D(Flatten)View78Whencreatinga钣金part,youmayneedtogetaflattenviewofthepartunfoldedona2Ddrawing.catia钣金设计教程BendLines79A2D(Flatten)Viewisa2Ddrawingviewofa钣金partwhichhasbeenflattenforproduction.Shownontheviewarethebendlineswherethefoldswilloccuronthepart.catia钣金设计教程Dimensionscanbeaddedtothe2Ddrawingasneeded.80catia钣金设计教程1SelecttheUnfoldedViewicon243Next,selectaflattenreferenceplaneonthe3DgeometryGotoDraftingworkbenchandcreateasheetClickanywhereonthedrawingtocreatetheviewNote:ifastampfeatureiscreatedoverthelimitbetweenseveralsupports,suchaswalls,弯曲,andsoforth,thestampisnotvisibleintheview.81钣金ModificationstoaPartInthislesson,youwillseehowwecandovariousmodificationstodifferentparameters,walls,弯曲,cutoutsandfeaturesofapart.ModifyingPartParametersModifyingWallsModifying弯曲

Modifying凸缘,CutOutsandStampFeatures82A钣金part’sparameterscanbemodifiedformaterialthickness,bendradius,andreliefchanges.Whenmodified,allfeaturesusingthedefaultvalueswillbeupdate.catia钣金设计教程83Therearethreemainparameterstomodify:standard弯曲,wallthicknessorbendrelief'sinthepart.catia钣金设计教程Thesecondisthedefaultbendradius.Thefirstisthematerialthicknessofthepart.Thisallowschangestothematerialthicknessforreasonsuchasrigidity,weight,etc…Thethirdtomodifyisthetypeofbendrelief.FromSquareRelieftonoreliefFrom0.5mmRto3mmRFrom3mmthickto1mmthick84catia钣金设计教程Tip:thewallthicknesswillmodifyonlyinthedirectionoftheoriginalwallthickness.Tochangethis,youmustedittheoriginalwallandmodifyitthere.Selectthe钣金Parametersicon12Tip:Youcouldselectthe钣金ParametersiteminthetreealsoKeythenewvaluesin钣金ParametersTab85catia钣金设计教程2Selectthe钣金ParametersIcon1Tip:ModifyasinglereliefbyselectingtheExtremitiesbuttonintheBendDefinitionwindowSelecttheBendExtremitiesTab3KeyorselectthenewParameters86Modifyinga钣金part’swalls(shape,length,widthetc…)catia钣金设计教程87PROcatia钣金设计教程Procanbemodifiedbytheoriginalsketch;eliminatingextraitemsinthetree.Italsosimplifieslocatingthemforfuturechanges.WALLSONEDGEEdgewallscanbemodifiedtoaddexteriorgeometrytothemorisolatetheedgegeometryandshortenit.88Whattypesofmodificationscanbedonetodifferentwalls?(2/2)EXTRUDEDWALLSTheoriginalExtrusionusedtocreatetheextrudedwallscanbeexplodedtocreateseparatewallssoeachcanbemodifiedindividuallyModifytheoriginalsketchtochangethewalls.MB3onExtrusion.1,Extrusion.1objectandisolate89catia钣金设计教程SelecttheoriginalwallsketchandtheSketchicon123Tip:Theedgeslotandchamfercouldhavebeencreatedascutouts,butthatwouldhaveincreasedthesizeofthetreeandthedocumentsize.Modifyingthesketchisbetter.ModifythegeometrywithintheSketcher.Returnto3DbyselectingtheExitbutton904SelecttheoriginalWallSketchfortheEdgewallandtheSketchericoncatia钣金设计教程231Tip:itisrecommendedthatthingssuchasnotches,edgeslots,chamfers,etc…beaddedtothesketch,eliminatingtheneedforextraitemsinthetree.ToIsolatethewallfromtheoriginaledgelocatetheMouseovertheyellowedgelineanduseMB3andselectISOLATENowaddawidthdimensionandmodifyExitandreturnto3D91SelecttheSketchoftheExtrudedwallsModifythedimensions2catia钣金设计教程1