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CONFIDENTIALEdition1ChACodeTFO-

THISDOCUMENTMUSTNOTBEREPRODUCEDORCIRCULATEDTOTHETHIRDPARTIES

WITHOUTPRIORWRITTENCONSENTBYFIATAUTOS.P.A.

FIDUCIALMARKSFORBODYSHELLANDBODYSHELL

DESIGN

STANDARD

00219

normazione

COMPONENTCONSTRUCTION,ASSEMBLYANDMEASUREMENT

Page:1/7

Date:June,1990

PURPOSE

ThisStandardcoverscIassification,functionandcriteriaforspecifyingmotorvehicIefiduciaImarks.

ThisDesignStandardconsistsof7pages.

Change

Date

Description

A

June,1990

Paragraph2revised.(CB)

ANYPRINTEDCOPYISTOBEDEEMEDASUNCHECKED;THEREFORETHEUPDATEDCOPYMUSTBECHECKEDINTHEAPPROPRIATEWEBSITE

FA

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1

GENERAL

ThepurposeoffiduciaImarks(hoIesorsurfaces)istopermitcorrectpositioningofthebodysheIIorbodysheIIcomponentforconstruction,assembIyordimensionaIchecksmadeduringpro-ductionorinthecourseofserviceoperations.

FiduciaImarksaredividedintothreetypes:primary,compIementaryandauxiIiary.

wheneitheroftwofiduciaImarkscouIdbeseIectedindifferentIy,preferenceshaIIbegiventothefiduciaImarkwhichis:

一Ontherighthandside

一Lowermost

一Locatedtothefront

whenthefiduciaImarkisahoIeinasheetmetaIstamping,theaxisofthefiduciaImarkshaIIbeparaIIeItothepressdirection.

2

PRIMARYFIDUCIALMARKS

ThethreeprimaryfiduciaImarksareusedtoIocatethethree一dimensionaIreferencesystem(seestd.00218)onthebodysheIIandaredefinedbytheDesignDepartmenttogetherwiththemanufacturingdepartmentsinvoIved.primaryfiduciaImarksconsistsofhoIesorsurfacesIo-catedontheundersideofthebodysheII,twoatthefrontandoneattherear.

primaryfiduciaImarksmaybeusedformeasuringthecompIetebodysheII,whichispositionedinthethree一dimensionaIreferencesystembymeansofthesethreepoints.TheymayaIsobeusedtodefinethereIationshipbetweenthesupportpIane(ground)andthevehicIeinthevariousIoadconditions.

primaryfiduciaImarksshaIIbeusedasreferenceforthecomponentorfeaturetowhichtheybe-Iong.

primaryfiduciaImarksareidentifiedonengineeringdrawingsbymeansofthesymboIasperstd.00221.

Barringimpediments,primaryfiduciaImarksonthebodysheIIconsistofhoIesasperstd.00220.saidhoIesshaIIbe25mmindiameter,andshaIIbesurroundedbyafIat,horizontaIareanotIessthan10mmindiameterandperpendicuIartotheaxisofthehoIe.

whensheetmetaIthicknessexceeds1.5mm,saidhoIesmaybeIeftas一punched.ItsheetmetaIthicknessisIessthan1.5mm,hoIesshaIIbepunchedandextrudedorreinforcedbymeansofaweIdedpIate.

weIdingshaIInotextendtothe10mmdiameterbearingarea.

EachindividuaIprimaryfiduciaImarkshaIIbecapabIeofbearingatIeasttwothirdsoftheentireweightoftheautomobiIeinrunningorder.

surfacesusedforprimaryfiduciaImarksshaIIaIwaysbefIatandhorizontaI.

3

COMPLEMENTARYFIDUCIALMARKS

CompIementaryfiduciaImarksarehoIesorsurfacesreferredtothethree一dimensionaIrefer-encesystemwhichpermitcorrectpositioningofbodysheIIcomponentsforconstruction,as-sembIy,anddimensionaIchecks.

AsforprimaryfiduciaImarks,hoIesof16or25mmdiameteraretobepreferredforcompIementa-ryfiduciaImarks.Ifsurfacesareused,theyshouIdwheneverpossibIebefIat.EasyfixturingshaIIaIsobepossibIe.

pUBLIsHEDBYsATIZs.p.A.一NORMAZIONE

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00219

Change

whenseIectingfiduciaImarksbearinmindthat,duringproduction,measurementsarecarriedoutprimariIyinordertodeterminewhetheracomponentwhichhasbeenformedinonestationissuitabIeforintroductiontothenextstation.

AreastobecheckedinthiscontextarethosewherethecomponentwiIIbejoinedtoothereIe-mentsinthenextoperation.

CheckingfixturesthushaveaduaIfunction:

a)TocheckthatthecomponentissuppIiedintoIeranceconditionssuchthat(inmatingparts)itissuretobeacceptedbysubsequentequipmentwithoutsIowingdownproduction.

b)Tocheckthecomponentinordertodeterminewhetheradjustmentstotheformingequip-mentarenecessary.

Tothisend,itisessentiaIthatthefiduciaImarksandthecheckingfixturecIampsbeinthesamepositionsasthoseinsubsequentproductionequipment.

EachfiduciaImarkshaIIbemaintainedthroughsubsequentassembIyandinspectionoperationsforasIongasitisoftechnicaIutiIityandcanbemaintained.

4

AUXILIARYFIDUCIALMARKS

AuxiIiaryfiduciaImarksarethosefiduciaImarkswhichbecomenecessaryforpositioningthecomponentonthecheckingfixtureorequipmentwhentheprimaryandcompIementaryfiduciaImarksareinsufficienttothatpurpose.

TheseauxiIiaryfiduciaImarksareindispensabIeforIargecomponentsorforcomponentswhichincorporateeasiIydistortedareas.

ItisnotnecessarytoindicateaIIauxiIiaryfiduciaImarksondrawingfiIeNo.5.XX.X,butonIythosewhicharerequiredtoensurepositivecomponentIocationoncheckingfixtureorequipment.

5

IDENTIFICATIONOFPRIMARY,COMPLEMENTARYANDAUXILIARYFIDUCIALMARKS

Beforedesigningequipment,theDesignDepartment,incollaborationwiththemanufacturingdepartmentsfromwhomapprovalisnecessary,shaIIissueforeachnewvehicIedesignagener-aIIayoutoraseriesofIayoutsshowingmajorbodysheIIunitsand,foreachofsaidunits,theposi-tionoffiduciaImarksforinspectionandfixturingandthethreereferenceaxestowhichtheyarereIated.

ManufacturingdrawingsofthepartsinwhichfiduciaImarksareIocatedshaIIbeidentifiedbymeansoftheassociatedfiIenumbers(seeexampIesinthefoIIowingsheets).

FiduciaImarksshaIIbeindicatedonmanufacturingdrawingsbysymboIsasperStd.00221.

DimensionsindicatingpositionoffiduciaImarksinthethree-dimensionaIreferencesystemshaIIbeshowninaboxasperpara.4.9ofStd.01376.

PUBLISHEDBYSATIZS.p.A.-NORMAZIONE

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W,THOUTPR,ORWR,TTENCONSENTBYF,ATAUTOSPA.

33219

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TypeA-Std33223

ExampOe:

PUBL,SHEDBYSAT,ZS.p.A.-NORMAZ,ONE

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