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THEONLYVAL,DREFERENCE,STHEOR,G,NAL,TAL,ANED,T,ON

一

TFO

Code

一

Ch.

2

Edition

normazione

FORMANDD,MENS,ONSOF

W,PEDWELD,NGFLANGES

FORAUTOMOT,VEBODYWORK

DES,GN

STANDARD

00216Page:1/7

Date:February,1989

PURPOSE

TospecifyformanddimensionsofwipedfIangesusedinvehicIebodypaneIjoiningbyspotweIding.

Change

Date

Description

Feb.,

1989

Edition2一CompIeteIyreviewed(wasEd.1).

A

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00216

Page2

Change

1

GENERAL

Thisstandardcoversdesignandmatingrequirementsfor90degreebendspotweIdingfIangesforautomotivebodywork.saidrequirementsappIyundertheconditionsindicatedinpara.2.

FIangeswhichdonotcompIywiththerequirementsspecifiedhereinmaybeuseduponagreementbetweentheFabricationandDesignDepartmentsinvoIved,whoshaIIindicateagreeddimensionsandtoIerancesondrawing.

2

SCOPE

2.1

ThisstandardappIiesunderthefoIIowingconditions:

2.1.1

FIangesformedbyawipingoperation一seeFigure1.

ForfIangesproducedusingothermethodsseestd.00217.

2.1.2

Manufacturingstock(sheetorstrip)isnomorethan3mmthickandconsistsofIowcarboncoIddrawingquaIitysteeIasperstd.52806.

Figure1.

2.1.3

,nsideradiusofbendis1to1.5timesstockthickness.

2.1.4

FIangesarespotweIdedtogetherortoothereIements.

2.2

ThisstandardaIsoappIiestofIangeshavingabendangIeotherthan90degreesonwhich,fortechnicaIorfabricatingreasons,itisnotpossibIetocompensateforspringbackbycorrectingthebendangIe.

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00216

Change

3

DES,GNDATA

3.1

Flangeformanddimensions

Figure2.

SYMBOL

DESCR,PT,ON

REQU,REMENT

NOTES

α

BendangIe

suppIement

91o±30,

AngIeexceedsthetheoreti-caI90oasaresuItof

springback,whichcannotbeeIiminatedinthewipe

formingprocess(seefig.1).

s

Stock

thickness

≤2mm

SeeStd.01474

ShaIIbeindicatedondra-wing.

r

,nsideradiusofbend

1to1,5s

一

b

FIangeheight

14to15mm*

for

s≤1,5mm

NormaI:**

一1

+2Narrow:

一0,5+1

HeightshaIIbeindicatedondrawing.DimensionshaIIin-cIudeincreaseinIength(w)overdimension(a)offIat

bIankwhichoccursduringstamping.

>15to18mm

for

s>1,5mm

w

,ncreasein

fIangeIength

withrespect

tofIatbIank

w=0,0175(r+Ks).(180o一α)

where:0,0175isthefactorfor

conversiontoradians

180o一α=BendangIe

r=,nsideradiusofbend,inmmK=0,33

s=Stockthickness,inmm

Appendix1showsincrea-

sesinIengthasreIatedto

thicknessandbendradius.vaIuesderivedfromcaIcuIa-tionortabIeinapendix1

areapproximate.

a

FIangeIength

onfIatbIank

a=b一v

一

*b=12mmisaIIowedinspeciaIcases.

**ToIerancestakeintoaccountvariationsasaresuItofdiewear,uneventhickness,sheetstiffness,etc.,asweIIasvariationsaIongentireperimeterofpart.

ToIerancesshaIIbeindicatedondrawingonIYwhennarrowtoIerancesarerequired.

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Change

3.2

Flangewelding

Figure3.

sYMBOL

DEsCR,PT,ON

REQU,REMENT

b

FIangeheight

seetabIepara.3.1.

d

spotdiameter

≈6mm.

y

Minimumdistanceofspotaxistostocksurface

7mmfor12,5dia.eIectrodes

9mmfor16dia.eIectrodes

z

JointcIearancederivingfromfIangebend

≈0,2mm±0,1

α

BendangIesuppIement

91o±30,(seetabIepara.

3.1.)

4

4.1

,ND,CAT,ONONENG,NEER,NGDRAW,NGS

FIangescompIyingwiththisstandardshaIIbeidentifiedondrawingsbymeansofthesymboI

(seeFigure4).

ThissymboIindicatesthatfIangessomarkedarestandard,andarethustobeformedandjoinedinaccordancewiththisDesignstandard.

symboIshaIIpointtowardsthefaceofthefIangewhichistobemated,asshowninFigure5.,fbothfacesaretobemated,asymboIshaIIbepIacedonboth.

Figure4.Figure5.

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00216

Change

4.2

,ftheedgesoffIangearerequiredtobeparticuIarIyeven,thesymboI回shaIIbeused.(seeFigure6).symboIshaIIpointtowardstheedgeconcerned,asinFigure7.

,nthesecasestherequiredevennesscannotgeneraIIybeachievedthroughwiping(seestd.00217).

Figure6.Figure7.

5

D,MENS,ONSONDRAW,NG

5.1

Dimensioningofflangedparts

Figure8showsanexampIeofdimensionigondrawing.

Figure8.

where:L=NominaIdimensioncorrespondingtodimensionassumedbypartafterweIding.

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Change

5.2

Dimensioningondiagramofstampedpart

where:L1=Distanceacrossbend

points

L2=DistanceacrossfIange

ends

180。=BendangIe

r=,nsideradiusofbend.

Figure9.

ThesedimensionsshaIIbeconsideredduringinspectionofstampedpartpriortoweIding,andshaIIbeindicatedondrawingonIywhentheyarerequiredtodifferfromthosespecifiedherein.

5.3

Dimensioningofflangesformedoncurvedparts

,nordertocompensateforvariationsindeveIopmentwhenfIangesareformedonpartswithtightcurves,itmaybenecessarytoreducefIangeheightand/ortonotchfIangeinvariouspointspriortoforming.

whetherornotsuchactionisnecessaryshaIIbeevaIuatedbytheStampingDepartmentstogetherwiththebodysheIIand/orProcessingTechnoIogyinvoIved,whowiIIforwardtheirsuggestionstotheDesignDepartment.

TheDesignDepartmentmayimpIementsaidsuggestionsonIyafterevaIuatingtheireffectsontheprocesscycIeandonthefinishedproduct.

DrawingshaIIshowthefoIIowingdimensions:

a)Heightreduction一DimensionIinesshaIIpassthroughthecentreoftheIinesjoiningthedifferentheights.

b)Notchposition一DimensionIinesshaIIpassthroughnotchcenterIine.

Figure10showsanexampIeofdimensioningondrawings.Dimensionsshownforheightreductionandnotchesareindicative,asthestampingoperationfoIIowingtrimminggivesrisetovariationsduetosheetcharacteristics.

AnybindingdimensionsshaIIbeshown.

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