1、AN AM E R IC AN NAT IO NAL STANDARDASME B18.18-2017(Revision of ASME B18.18-2011)Quality Assurance for FastenersASME B18.18-2017(Revision of ASME B18.18-2011)QualityAssurance forFastenersAN AMERICAN NATIONAL STANDARDTwo Park Avenue New York,NY 10016 USADate of Issuance:June 16,2017This Standard will
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3、8 Committee may bepublished as Cases.Cases are published on the ASME Web site under the B18 Committee Page atgo.asme.org/B18committee as they are issued.Errata to codes and standards may be posted on the ASME Web site under the Committee Pages toprovide corrections to incorrectly published items,or
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11、of the publisher.The American Society of Mechanical EngineersTwo Park Avenue,New York,NY 10016-5990Copyright 2017 byTHE AMERICAN SOCIETY OF MECHANICAL ENGINEERSAll rights reservedPrinted in U.S.A.CONTENTSForeword.ivCommittee Roster.vCorrespondence With the B18 Committee.vi1General Information.12Basi
12、c Plan Requirements.13Category 1 Optional Receiving Inspection Plan for Purchasers.34Category 2 Fasteners Intended for General Purpose Applications.35Category 3 Fasteners Intended for Specialized Applications.46Category 4 Automated Assembly Fasteners.4Tables1Categories 2,3,and 4 Attributes.62Categor
13、y 2 Sample Sizes.93Category 3 Sample Sizes.94Category 1 Attributes.10iiiFOREWORDThis Standard is intended to be used as part of a contractual agreement between sellers andbuyers of fasteners.It provides minimum criteria for four categories of metric and inch fastenersof any material type.It is to be
14、 used in concert with the specifications that apply to a given part.This Standard is intended to be a part within a larger quality assurance structure that addresseshighly specific elements of quality planning,material control,human resources,gaging andtesting,procedures,blueprintandstandardscontrol
15、,andongoingimprovementsthatarenecessaryto permit the effective realization of the fastener itself.Such structures shall ideally be internation-ally recognized,but can be buyer specific.ThisStandardalsoprovidesminimumcriteriaformanufacturinginspectionandfinalinspectionand allows for the necessary mea
16、sure of flexibility and ingenuity of manufacturing approachesthat suppliers may use as they comply with the standards requirements and end objectives.Itprovides reference material to enable buyers and sellers to make modifications to their plansshould they find that necessary in meeting the requirements of this Standard and those of theirbuyers.In the implementation of this Standard,buyers must become cognizant of the source of supplymanufacturing quality plan and use a means of their own to ens
