GMW-15011-2018原版完整文件

GMW15011

June2006 OriginatingDepartment:NorthAmericanEngineeringStandards Page1of4

GM

GeneralSpecification

Chassis

WORLDWIDEENGINEERINGSTANDARDS

AluminumPartsforEngine-TransmissionBracketsandAluminum

InternalCoresofDampeningBlocks

1Introduction

Note:Nothinginthespecificationsupersedesapplicablelawsandregulationsunlessspecificexemptionhasbeenobtained.

Note:IntheeventofconflictbetweentheEnglishanddomesticlanguage,theEnglishlanguageshalltakeprecedence.

cope.Aluminumpartsoftheengine-transmissionsuspension(e.g.,dampingblocks,hydromounts,hydrobushings,brackets).

Mission/Theme.Thisspecificationdeterminestherequirementsforaluminumpartsoftheengine-transmissionsuspension(e.g.,dampingblocks,hydromounts,hydrobushings,brackets)anddescribesthematerialtestsofthecomponents.

Classification.Notapplicable.

2References

Note:Onlythelatestapprovedstandardsareapplicableunlessotherwisespecified.

2.1ExternalStandards/Specifications.

EN722-2 EN755-2

2.2GMStandards/Specifications.

GME00150 GMW3059

GME60156 QN4192GD

GMW5 QN4193GO

3TestPreparationandEvaluation

3.1Resources.

Calibration.Thetestfacilitiesandequipmentshallbeingoodworkingorderandshallhaveavalidcalibrationlabel.

Alternatives.Alternativetestfacilitiesandequipmentmayalsobeused.However,allmeasuringvariablesasspecifiedinthisspecificationshallbedeterminedcorrectlywithrespecttoitsphysicaldefinition.

Facilities.Testfacilitiesaccordingtoreferencesasspecifiedinparagraph2.

Equipment.Notapplicable.

TestVehicle/TestPiece.Notapplicable.

TestTime.Notapplicable.

TestRequiredInformation.Notapplicable.

Personnel/Skills.Notapplicable.

Preparation.Thenumberoftestpiecesshallbeaspertheappropriatetestmethods,orwherenosuchdetailsaregivenofatleastthreetestpieces.shallbetestedforinitialsampleandarbitrationpurposesandonetestpiecemin.forroutinequalitycontrol.

Conditions.Ifnototherwisespecifiedthetestsshallbeperformedintheasreceivedconditionat+23±5°Cwithoutanyspecialpreconditioning.

EnvironmentalConditions.Notapplicable.

TestConditions.Notapplicable.

3.4Instructions.Notapplicable.

3.5Data.Notapplicable.

3.6Safety.Thisproceduremayinvolvehazardousmaterials,operations,andequipment.Thismethoddoesnotproposetoaddressallthesafetyproblemsassociatedwithitsuse.Itistheresponsibilityoftheuserofthemethodtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.

3.7Documentation.SamplesofcomponentsormaterialreleasedtothisspecificationshallbetestedforconformitywiththerequirementsofthisspecificationandapprovedbytheresponsibleGMDepartmentpriortothestartofdeliveryofproductionlevelcomponentsormaterials.

Anychangetothecomponentormaterial,e.g.,design,function,properties,manufacturingprocessand/orlocationofmanufacturerequiresanewreleaseoftheproduct.Itisthesoleresponsibilityofthesuppliertoprovidethecustomer,unsolicited,withdocumentationofanychangeormodificationtotheproduct/process,andtoapplyforanewrelease.

Ifnototherwiseagreedtotheentireverificationtestshallberepeatedanddocumentedbythesupplierpriortostartofdeliveryofthemodifiedorchangedproduct.InsomecasesashortertestcanbeagreedtobetweentheresponsibleGMDepartmentandthesupplier.

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3.7.1TestResults.Withreferencetothisspecificationtheresultsofthetestsshallbenotedinatestreport.

requirementsshallbespecifiedoncomponentdrawings,testcertificates,reports,etc.

3.7.2DeviationsfromTestProcedure.Deviationsfromtherequirementsofthetestproceduresshallhavebeenagreedupon.Such

4RequirementsandProcedure

4.1ThreadTest–Pull-outForce.SeeTable1.

Table1:Pull-outForcesforMetricThread

Threaddimension

TolerabledepthofengagementinkN/mmengagementdepthNote1

Threadpull-outforceinkNtorqueinstalledwithanengagementlength1.6xd

Threadpull-outforceinkNtorqueandrotationangleinstalledwithanengagementlength2xd

M8

2.67

34

43

M10

3.00

48

60

M12

3.33

64

80

Note1:Thedepthofengagementistheeffectivesupportingthreadlengthlessthechamfersandincompleteturnsofboltsand/ornuts

1.Support

2.Testpiece,engagementlength

Engagementlength,seeTable1,thetestpieceshallbemilledtothisdimension(withoutchamfer)

3.Testscrew,threadtolerance6gaccordingto

4. GME00150

5.Lateralscrew-onareaofthetestpiece

6.Boresupport,toleranceD11

Figure1:TestSetupforPull-outForceTest

Note:Ifseveralthreaddimensionsarespecifiedinthedrawing,allthreadholesminimumwiththemaximumdimensionshallbetested.

Thepropertyclassofthetestscrewshallbe≥or=thepropertyclassoftheusedinstallationscrew.

4.1.1UsedMaterials.Followingmaterialsmaybeused:

CastingalloysaccordingtoEN755-2

GMW5M-AL-C

QN4192GD

QN4193G0

AlSi12Cu2Fe

WroughtalloysaccordingtoEN722-2:

AW-AlMgSiT66

AW-AlSiMg(A)T6

CompressionProperties.CompressionpropertiesshallbetestedaccordingtoGME60156(onlyfortypeswiththroughholes,bushings).

F=Amaxxlimitingload(seeTable2)

a.Testplunger

b.Screwhole

d1 Diameteroftestplunger

d2 Actualdiameter,screwholetestpiece

d4 Contactarea

Figure2:TestSetupforCompressionProperty

Testing

4.2.1NormalCase.

Thetestplungerdiameterd1shallbe=or≥theminimumdiameterofwasherorboltheadseatingsurface.

Atoleranceof±2mmforthetestplungerdiameterd1ispermissible.Theactualdiametershallbetakenintoaccountforcalculation.

Thecontactaread4ofthetestpieceshallbe≥or=theusedfasteningbolt,washerortestplungerd1.

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，，

4.2.2Materials,MaximumLoad.Limitingloadin?0.5%max.ofcompressionlength≥30mmdependenceoftheusedmaterial(seeGME00150).

Permanentcompressionshallbe

?0.15mmmax.ofcompressionlength≤30mm

Table2:LimitingLoadinDependenceoftheUsedMaterial

Material

Unit

LimitingLoad

GMW5M-AL-C-S-Si10Mg-F

GMW5M-AL-C-P-Si10Mg-F

GMW5M-AL-C-D-Si10Mg-F

N/mm2

220

GMW5M-AL-C-S-Si9Cu3-F

GMW5M-AL-C-P-Si9Cu3-F

GMW5M-AL-C-D-Si9Cu3-F

N/mm2

220

QN4192GD

N/mm2

220

QN4193G0

N/mm2

220

AlSi12Cu2Fe

N/mm2

240

WroughtalloystoEN755-2:

AW-AlMgSiT66

N/mm2

200

AW-AlSiMg(A)T6

N/mm2

200

4.2.3CalculationofLimitValues–CalculationMethodforSurfaceDeterminationinNormalCase.Thescrewholediameterd2shallbemeasureddirectlyatthetestpiece.ThesurfaceAmaxshallbecalculatedasfollows:

(d12-d22)?π

Amax= 4

4.2.4CalculationofLimitValues–CalculationMethodforTolerableCompressionForceDeterminationinNormalCase.Thetolerablecompressionforceshallbecalculatedasfollows:Ftolerable=Amaxxlimitingload

ThelimitingloadaccordingtoTable2shallbeused.

4.2.5CalculationofLimitValues-Deviations.Testpieceswithd4<d1(seeFigure3)shallbetestedwithmodifieddiameter.

Modifieddiameter:d1

Theinstallationdataoftheboltedjointsshallbethoughtover(onlyfordesigner).

Figure3:Test–DeviationfromNormalCase

Note:3throughholesminimumshallbetestedifavailable.

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