1、Designation: F1470 18Standard Practice forFastener Sampling for Specified Mechanical Properties andPerformance Inspection1This standard is issued under the fixed designation F1470; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, th
2、e year of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.INTRODUCTIONThroughout this practice the terms detection and prevention apply to quality control systems.Abriefdescripti
3、on of both is provided to assist the purchaser in the application of this practice.The detection system relies on inspection as the primary means of controlling the quality offurnished material. Methods include in-process and final inspection. In-process inspection is typicallyperformed by the indiv
4、idual performing the process and generally includes a first-piece inspection bysomeone other than the operator. Quality-control inspection may perform audit inspections on theprocess output during the course of the production run. In addition, a final inspection is performed byquality control inspec
5、tors according to a prescribed sample plan. The other sample plans utilize zerodefects as their acceptance criteria.The prevention system uses advanced quality planning in addition to many of the techniques usedin the detection system. Quality planning incorporates a systems approach to quality cont
6、rol thatfocuses on defect prevention and continual improvement. In addition, Statistical Process Control(SPC) is usually applied to control the process, to achieve process stability and improve the capabilityby reducing the variability.ISO 9001, ISO/TS 16949, ASQ Q9001, and Guide F26882quality syste
7、m standards, or acombination thereof, are models that may be used in establishing a prevention-based quality system.1. Scope*1.1 This practice provides sampling methods for determin-ing how many fasteners to include in a random sample in orderto determine the acceptability or disposition of a given
8、lot offasteners.1.2 This practice is for mechanical properties, physicalproperties, performance properties, coating requirements, andother quality requirements specified in the standards of ASTMCommittee F16. Dimensional and thread criteria samplingplans are the responsibility of ASME Committees B18
9、.1 andB18.18.2M-B18.18.6M.1.3 This practice provides for two sampling plans: onedesignated the “detection process,” as described in Terminol-ogy F1789, and one designated the “prevention process,” asdescribed in Terminology F1789.1.4 This practice is intended to be used as either a FinalInspection P
10、lan for manufacturers, or as a Receiving InspectionPlan for purchasers/users. It is not valid for third-party quali-fication testing.1.5 This international standard was developed in accor-dance with internationally recognized principles on standard-ization established in the Decision on Principles f
11、or theDevelopment of International Standards, Guides and Recom-mendations issued by the World Trade Organization TechnicalBarriers to Trade (TBT) Committee.2. Referenced Documents2.1 ASTM Standards:3F1789 Terminology for F16 Mechanical FastenersF788/F788M Specification for Surface Discontinuities of
12、Bolts, Screws, and Studs, Inch and Metric SeriesF812/F812M Specification for Surface Discontinuities ofNuts, Inch and Metric Series1This practice is under the jurisdiction of ASTM Committee F16 on Fastenersand is the direct responsibility of Subcommittee F16.93 on Quality AssuranceProvisions for Fas
13、teners.Current edition approved Feb. 1, 2018. Published March 2018. Originallyapproved in 1993. Last previous edition approved 2012 as F147012. DOI:10.1520/F1470-18.2A practice for developing a quality management system that does not requirethird party certification.3For referenced ASTM standards, v
14、isit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.*A Summary of Changes section appears at the end of this standardCopyright ASTM International,
15、 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United StatesThis international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for theDevelopment of International Standards, Guides an
16、d Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.1F2688 Guide for System-Based, Customer-Centered QualityPlan for Manufacturers2.2 ASME Standards:4ASME B18.18.1 Inspection and Quality Assurance for Gen-eral Purpose FastenersASME B18.18.2M Inspectio
17、n and Quality Assurance forHigh-Volume Machine Assembly FastenersASME B18.18.3M Inspection and Quality Assurance forSpecial Purpose FastenersASME B18.18.5M Inspection and Quality Assurance PlanRequiring In-Process Inspection and ControlsASME B18.18.6M Quality Assurance Plan for FastenersProduced in
18、Third Party Accreditation System2.3 ASQ Standards:5ASQ Q9001 Quality Management Systems2.4 ISO Standards:6ISO 9001 Quality Management Systems RequirementsISO/TS 16949 Quality management systemsParticular re-quirements for the application of ISO 9001: 2000 forautomotive production and relevant servic
19、e part organiza-tions.3. Terminology3.1 Terms shall be defined in accordance with TerminologyF1789.3.2 Definitions:3.2.1 test, nan element of inspection that generally de-notes the determination by technical means of the properties orelements of supplies, or components thereof and involves theapplic
20、ation of established scientific principles and procedures.4. Significance and Use4.1 Sampling shall be selected in a random manner, ensur-ing that any unit in the lot has an equal chance of being chosen.Sampling should not be localized by selections being takenfrom the top of a container or from onl
21、y one container ofmulticontainer lots.4.2 The purchaser should be aware of the suppliers qualityassurance system. This can be accomplished by auditing thesuppliers quality system, if qualified auditors are available, orby third-party assessment certification, such as provided byISO/TS 16949, or ISO
22、9001.5. Ordering Information5.1 The purchaser shall specify at the time of order inquiry,the specification number, the issue date and the sampling plan(detection process or prevention process) required from thesupplier.5.2 Guidelines for sampling plan selection are provided inSection 6.6. Selection
23、of Sampling Plans6.1 Except as specified in 6.2, the detection process sam-pling level in accordance with Table 1 shall be applied.6.2 If the manufacturers quality system conforms withASQ Q9001, ISO 9001, or Guide F26882the manufacturershall be permitted to choose between the Prevention orDetection
24、process for inspection and test purposes. Purchasersshall retain the right to specify the Prevention or Detectionprocess at the time of inquiry or order (see Table 2).7. Acceptance Criteria7.1 The acceptance criteria for Table 3 is to accept the lot ifzero nonconforming parts are detected in the ran
25、dom sampleand reject the lot if at least one nonconforming part is detectedin the random sample.8. Disposition of Nonconforming Lots8.1 Manufacturers OptionsThe manufacturer shallchoose one of the following options in the disposition of thosefasteners that have been found to contain nonconformities
26、priorto shipment. The fastener manufacturer shall maintain recordsof disposition.8.1.1 They may be scrapped.8.1.2 They may be 100 % sorted, and all nonconformingparts removed.8.1.3 They may be reworked or reprocessed to correct thenonconforming characteristic(s).8.1.4 The manufacturer may make conce
27、ssion by use of adocumented internal review procedure and determine to shipproduct that is found to contain minor nonconformances thatare not critical or key characteristics as determined by the enduser. Nonconformance of critical or key characteristics shallneed approval from the end user prior to
28、shipment of product.(See 8.1.6.)8.1.5 They may be regraded for alternative applications.8.1.6 The end user may be informed of the nonconformityor nonconformities and his advice requested on their disposi-tion. The user may consider the degree to which the charac-teristic(s) deviate(s) from specified
29、 requirements and the sig-nificance of the effect on the assembly or performance of thefasteners in their service application. The user may authorize awritten release of the fasteners for completion of production orfor shipment, as applicable.8.2 End User OptionsThe end user shall choose one of thef
30、ollowing options for the disposition of those fastener lots thathave been rejected after delivery:8.2.1 The end user considers the degree to which thecharacteristic(s) deviate(s) from specified requirements and theeffect on their performance in the intended service application.The end user may autho
31、rize release of the parts or fastener lotsfor use.8.2.2 They may be scrapped.8.2.3 They may be 100 % sorted and nonconforming partsremoved.4Available from American Society of Mechanical Engineers (ASME), ASMEInternational Headquarters, Two Park Ave., New York, NY 10016-5990, http:/www.asme.org.5Avai
32、lable from American Society for Quality (ASQ), 600 N. Plankinton Ave.,Milwaukee, WI 53203, http:/www.asq.org.6Available from International Organization for Standardization (ISO), ISOCentral Secretariat, BIBC II, Chemin de Blandonnet 8, CP 401, 1214 Vernier,Geneva, Switzerland, http:/www.iso.org.F147
33、0 1828.2.4 They may be reworked or reprocessed to correct thenonconforming characteristic(s).8.2.5 They may be returned.8.3 Distributor OptionsThe distributor shall choose oneof the following options for the disposition of those fastenerlots that have been rejected after delivery.8.3.1 They may be s
34、crapped.8.3.2 They may be 100 % sorted, and nonconforming partsmay be removed with the written agreement of the manufac-turer. See Note 1.NOTE 1In general, product standards specify requirements for manu-facturers markings. Lot control, invoice information, and packaging mayTABLE 1 Sampling Level fo
35、r the Detection ProcessNOTE 1Legend: WAWhere Applicable.NANot Applicable.CharacteristicDescription of ControlSample LevelAInternally ThreadedPartsExternally ThreadedPartsNon-threaded WashersAdhesion (coating) C WA WA WA WAAssembly tension testBB NAWAN NBend, body (nails) A NA NA WA NABend, notched (
36、bolts) B NA WA NA NABend, body (track spikes) C NA NA WA NABreaking strength (eyebolts) C NA WA NA NACarbide precipitation C WA WA WA WACase depth/decarburization C WA WA WA WAChemistryC AWAWCompression (washer direct tension) A NA NA NA WACone proof C WA NA NA NADrill-Drive (self-drilling screws) A
37、 NA WA NA NADrive test A WA WA NA NADuctility (steel tapping screws) B NA WA WA NAElongationMachined specimen C NA WA WA NAExtension at failure C NA WA WA NAGrain sizeD WAWAWWHardnessEBBend, head (track spikes) C NA NA WA NAHumidity B WA WA WA WAHydrogen embrittlement B WA WA WA WAImpact C NA WA WA
38、NALubrication B WA WA WA WAMagnetic permeability B WA WA WA WAPackagingF AWAWPlating/coating thickness (weight) A WA WA WA WAProduct identification markingGProof loadFull size C WA WA NA NAReduction of areaMachined specimen C NA WA WA NABend, rivet B NA NA WA NAFlattening, rivet B NA NA WA NARotatio
39、nal capacity C WA WA NA WASalt sprayHAWAWShear strength C NA WA WA NAStress corrosion B WA WA WA WASurface discontinuitiesIAWAWSurface roughness B WA WA WA WATensile strengthFull sizeJCN NTensile strengthMachined specimen C NA WA WA NATorqueK(prevailing) C WA WA NA NATorque (torsional strength) C WA
40、 WA NA NAYield strengthFull size C NA WA NA NAYield strengthMachined specimen C NA WA NA NAAQuantity of samples is in Table 3, Sample Size.BSampling plan is for manufacturing requirements and may differ from requirements for field testing at time of installation.CA certified copy of the materials ch
41、emical or product analysis shall be furnished with each shipping lot, and the shipping lot shall have documentation providing traceabilityto this chemical analysis. It is required that the purchaser of the raw material (used to manufacture) shall verify that the material is the material specified on
42、 the purchaseorder.DThe steel producer shall provide the steel making practice (course or fine grain) on their certification. The steel producer may specify grain size at their option.ESurface or core, or both, as applicable.FAll packaging requirements shall be in conformance with the applicable pac
43、kaging standard.GVisual inspection for conformance.HContinuous monitoring of salt spray performance in accordance with the recommendation of Table B in Appendix 1 of ASME B18.18.2M constitutes compliance with therequirements for salt spray testing outlined in this table.IIncludes all surface discont
44、inuities contained within Specification F788/F788M (encompasses test methods, such as magnetic particle inspection and liquid penetranttesting) and Specification F812/F812MJWedge angle or axial test as applicable.KPrevailing torque test includes thread start, all specified torque requirements, and r
45、etention of locking feature, when applicable.F1470 183be another source of identification of the manufacturer.8.3.3 They may be reworked or reprocessed to correct thenonconforming characteristic(s) with the written agreement ofthe manufacturer. See Note 1.8.3.4 They may be returned. See Note 1.8.4 R
46、einspectionAll fastener lots that have been sorted,reworked, or reprocessed, or a combination thereof, under thejurisdiction of the manufacturer or distributor shall be rein-spected for the characteristic(s) found nonconforming and allother characteristics that would be affected by the reworking orT
47、ABLE 2 Sampling Level for the Prevention ProcessNOTE 1Legend: WAWhere Applicable.NANot Applicable.CharacteristicDescription of ControlSample LevelA ,BInternally ThreadedPartsExternally ThreadedPartsNon-threaded WashersAdhesion (coating) D WA WA WA WAAssembly tension test C NA WA NA NABend, body (nai
48、ls) B NA NA WA NABend, notched (bolts) C NA WA NA NABend, body (track spikes) D NA NA WA NABreaking strength (eyebolts) D NA WA NA NACarbide precipitation D WA WA WA WACase depth/decarburization D WA WA WA WAChemistryC AWAWCompression (washer direct tension) B NA NA NA WACone proof D WA NA NA NADril
49、l-Drive (self-drilling screws) A NA WA NA NADrive test B WA WA NA NADuctility (steel tapping screws) C NA WA WA NAElongationMachined specimen D NA WA WA NAExtension at failure D NA WA WA NAGrain sizeD WAWAWWHardnessECBend, head (track spikes) D NA NA WA NAHumidity C WA WA WA WAHydrogen embrittlement C WA WA WA WAImpact D NA WA WA NALubrication C WA WA WA WAMagnetic permeability C WA WA WA WAPackagingF AWAWPlating/coating thickness (weight) B WA WA WA WAProduct identification markingGProof loadFull size D WA WA NA NAReduction of areaMachined spe
copyright@ 2008-2019 麦多课文库（www.mydoc123.com）网站版权所有
备案/许可证编号：苏ICP备17064731号-1