VCS 5511719-issue12-202001 螺纹紧固件摩擦系数测试eng.pdf

STANDARDVCS5511,719

VolvoCarCorporation

Issue:Page:

2020-01121(42)

SCREWJOINTTECHNOLOGY

Determinationoffrictionpropertiesforthreaded

fasteners

Testmethod

Orientation

Thisissuediffersfromissue11inthattheclampingforcelevelsatwhichtheassemblyfrictionshallbe

tested,aswellasthenumberofscrewsthatshallbetested,havebeenclarified.

ThestandardhasbeenchangedfrombilingualtoEnglishonly.

ThisstandardwaspreviouslymarkedasNotfornewdesign,buthasnowbeenreactivated.

Contents

1Scopeandfieldofapplication

2Abbreviationsanddefinitions

3Apparatus

3.1Testingoflongscrewsandnuts

3.2Testingofshortscrews

4Testingcategories

4.1Introductorytesting

4.2Developmenttesting

4.3Verificationtesting

4.4QAtesting

5Testprocedure

5.1Testingbeforeintroductionintoproduction

5.2Testingafterintroductionintoproduction

5.3Testingprocedure

5.4Registrationoftestparameterswhentestinginlaboratoryenvironment

5.5Calculationofassemblyfriction

5.6Requirements

Appendix1Geometriesforfrictiontesting

Appendix2QAtestingofshortscrews

Appendix3Geometriesandnominalminimumfailureloadforcoarse-threadedflangescrews

GIS1ItemNumber:10.03

GIS2Classification:Proprietary

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