1、Designation: F1470 09 F1470 12Standard 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 rev
2、ision, the 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. A bri
3、efdescription 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 b
4、y the individual 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 con
5、trol inspectors 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 q
6、uality control 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 F2688 2
7、quality system standards, or acombination thereof, are models that may be used in establishing a prevention-based quality system.1. Scope Scope*1.1 This practice provides sampling methods for determining how many fasteners to include in a random sample in order todetermine the acceptability or dispo
8、sition of a given lot of fasteners.1.2 This practice is for mechanical properties, physical properties, performance properties, coating requirements, and otherquality requirements specified in the standards of ASTM Committee F16. Dimensional and thread criteria sampling plans are theresponsibility o
9、f ASME Committees B18.1 and B18.18.2M-B18.18.6M.1.3 This practice provides for two sampling plans: one designated the “detection process,” as described in Terminology F1789,and one designated the “prevention process,” as described in Terminology F1789.1.4 This practice is intended to be used as eith
10、er a Final Inspection Plan for manufacturers, or as a Receiving Inspection Planfor purchasers/users. It is not valid for third-party qualification testing.2. Referenced Documents2.1 ASTM Standards:3F1789 Terminology for F16 Mechanical FastenersF788/F788M Specification for Surface Discontinuities of
11、Bolts, Screws, and Studs, Inch and Metric SeriesF812/F812M Specification for Surface Discontinuities of Nuts, Inch and Metric Series1 This practice is under the jurisdiction of ASTM Committee F16 on Fasteners and is the direct responsibility of Subcommittee F16.93 on Quality Assurance Provisionsfor
12、Fasteners.Current edition approved Jan. 1, 2009Nov. 15, 2012. Published January 2009December 2012. Originally approved in 1993. Last previous edition approved 20022009 asF147002.09. DOI: 10.1520/F1470-09.10.1520/F1470-12.2 A practice for developing a quality management system that does not require t
13、hird party certification.3 For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at serviceastm.org. For Annual Book of ASTM Standardsvolume information, refer to the standards Document Summary page on the ASTM website.This document is not an ASTM stan
14、dard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Becauseit may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all case
15、s only the current versionof the standard as published by ASTM is to be considered the official document.*A Summary of Changes section appears at the end of this standardCopyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States1F2688 Guide for
16、System-Based, Customer-Centered Quality Plan forFor Manufacturers2.2 ASME Standards:ASME B18.18.1 Inspection and Quality Assurance for General Purpose FastenersASME B18.18.2M Inspection and Quality Assurance for High-Volume Machine Assembly FastenersASME B18.18.3M Inspection and Quality Assurance fo
17、r Special Purpose Fasteners4ASME B18.18.5M Inspection and Quality Assurance Plan Requiring In-Process Inspection and Controls4ASME B18.18.6M Quality Assurance Plan for Fasteners Produced in Third Party Accreditation System42.3 ASQ Standards:ASQ Q9001 Quality Management Systems42.4 ISO Standards:ISO
18、9001 Quality Management Systems Requirements4ISO/TS 16949 Quality management systemsParticular requirements for the application of ISO 9001: 2000 for automotiveproduction and relevant service part organizations.43. Terminology3.1 Terms shall be defined in accordance with Terminology F1789.3.2 Defini
19、tions:3.2.1 test, nan element of inspection that generally denotes the determination by technical means of the properties or elementsof supplies, or components thereof and involves the application of established scientific principles and procedures.4. Significance and Use4.1 Sampling shall be select
20、ed in a random manner, ensuring that any unit in the lot has an equal chance of being chosen.Sampling should not be localized by selections being taken from the top of a container or from only one container of multicontainerlots.4.2 The purchaser should be aware of the suppliers quality assurance sy
21、stem. This can be accomplished by auditing thesuppliers quality system, if qualified auditors are available, or by third-party assessment certification, such as provided byISO/TS 16949, or ISO 9001.5. Ordering Information5.1 The purchaser shall specify at the time of order inquiry, the specification
22、 number, the issue date and the sampling plan(detection process or prevention process) required from the supplier.5.2 Guidelines for sampling plan selection are provided in Section 6.6. Selection of Sampling Plans6.1 Except as specified in 6.2, the detection process sampling level in accordance with
23、 Table 1 shall be applied.6.2 If the manufacturers quality system conforms with ASQ Q9001, ISO 9001, or Guide F2688 2 the manufacturer shall bepermitted to choose between the Prevention or Detection process for inspection and test purposes. Purchasers shall retain the rightto specify the Prevention
24、or Detection process 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 if zero nonconforming parts are detected in the random sample andreject the lot if at least one nonconforming part is detected in the random sample.8.
25、 Disposition of Nonconforming Lots8.1 Manufacturers OptionsThe manufacturer shall choose one of the following options in the disposition of those fastenersthat have been found to contain nonconformities prior to shipment. The fastener manufacturer shall maintain records of disposition.8.1.1 They may
26、 be scrapped.8.1.2 They may be 100 % sorted, and all nonconforming parts removed.8.1.3 They may be reworked or reprocessed to correct the nonconforming characteristic(s).8.1.4 The manufacturer may make concession by use of a documented internal review procedure and determine to ship productthat is f
27、ound to contain minor nonconformances that are not critical or key characteristics as determined by the end user.Nonconformance of critical or key characteristics shall need approval from the end user prior to shipment of product. (See 8.1.6.)8.1.5 They may be regraded for alternative applications.4
28、 Available from American National Standards Institute (ANSI), 25 W. 43rd St., 4th Floor, New York, NY 10036, http:/www.ansi.org.F1470 1228.1.6 The end user may be informed of the nonconformity or nonconformities and his advice requested on their disposition. Theuser may consider the degree to which
29、the characteristic(s) deviate(s) from specified requirements and the significance of the effecton the assembly or performance of the fasteners in their service application. The user may authorize a written release of thefasteners for completion of production or for shipment, as applicable.8.2 End Us
30、er OptionsThe end user shall choose one of the following options for the disposition of those fastener lots that havebeen rejected after delivery:8.2.1 The end user considers the degree to which the characteristic(s) deviate(s) from specified requirements and the effect ontheir performance in the in
31、tended service application. The end user may authorize release of the parts or fastener lots for use.TABLE 1 Sampling Level for the Detection ProcessNOTE 1Legend: WAWhere Applicable.NANot Applicable.CharacteristicDescription of ControlSample LevelA Internally ThreadedParts Externally ThreadedParts N
32、on-threaded WashersAdhesion (coating) C WA WA WA WAAssembly tension test B NA WA NA NABend, body (nails) A NA NA WA NABend, notched (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
33、 WA WA WAChemistryB WA WA WA WACompression (washer direct tension) A NA NA NA WACone proof C WA NA NA NADrill-Drive (self-drilling screws) A 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 NAGra
34、in sizeC WA WA WA WAHardnessD B WA WA WA WABend, head (track spikes) C NA NA WA NAHumidity B WA WA WA WAHydrogen embrittlement B WA WA WA WAImpact C NA WA WA NALubrication B WA WA WA WAMagnetic permeability B WA WA WA WAPackagingE WA WA WA WAPlating/coating thickness (weight) A WA WA WA WAProduct id
35、entification markingF WA WA WA WAProof 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 NARotational capacity C WA WA NA WASalt sprayG B WA WA WA WAShear strength C NA WA WA NAStress corrosion B WA WA WA WASurface discon
36、tinuitiesH B WA WA WA WASurface roughness B WA WA WA WATensile strengthFull sizeI C NA WA WA NATensile strengthMachined specimen C NA WA WA NATorqueJ (prevailing) C WA WA NA NATorque (torsional strength) C WA WA NA NAYield strengthFull size C NA WA NA NAYield strengthMachined specimen C NA WA NA NAA
37、 Quantity of samples is in Table 3, Sample Size.B A certified copy of the materials chemical 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 mate
38、rial (used to manufacture) shall verify that the material is the material specified on the purchaseorder.C The 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.D Surface or core, or both, a
39、s applicable.E All packaging requirements shall be in conformance with the applicable packaging standard.F Visual inspection for conformance.G Continuous monitoring of salt spray performance in accordance with the recommendation of Table B in Appendix 1 of ASME B18.18.2M constitutes compliance with
40、therequirements for salt spray testing outlined in this table.HIncludes all surface discontinuities contained within Specification F788/F788M and Specification F812/F812M.I Wedge angle or axial test as applicable.J Prevailing torque test includes thread start, all specified torque requirements, and
41、retention of locking feature, when applicable.F1470 1238.2.2 They may be scrapped.8.2.3 They may be 100 % sorted and nonconforming parts removed.8.2.4 They may be reworked or reprocessed to correct the nonconforming characteristic(s).8.2.5 They may be returned.8.3 Distributor OptionsThe distributor
42、shall choose one of the following options for the disposition of those fastener lots thathave been rejected after delivery.TABLE 2 Sampling Level for the Prevention ProcessNOTE 1Legend: WAWhere Applicable.NANot Applicable.CharacteristicDescription of ControlSample LevelA ,B Internally ThreadedParts
43、Externally ThreadedParts Non-threaded WashersAdhesion (coating) D WA WA WA WAAssembly tension test C NA WA NA NABend, body (nails) 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
44、depth/decarburization D WA WA WA WAChemistryC WA WA WA WACompression (washer direct tension) B NA NA NA WACone proof D WA NA NA NADrill-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 a
45、t failure D NA WA WA NAGrain sizeD WA WA WA WAHardnessE C WA WA WA WABend, 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 WA WA WA WAPlating/coating thickness (weigh
46、t) B WA WA WA WAProduct identification markingG WA WA WA WAProof loadFull size D WA WA NA NAReduction of areaMachined specimen D NA WA WA NABend, rivet C NA NA WA NAFlattening, rivet C NA NA WA NARotational capacity D WA WA NA WASalt sprayH C WA WA WA WAShear strength D NA WA WA NAStress corrosion C
47、 WA WA WA WASurface discontinuitiesI C WA WA WA WASurface roughness C WA WA WA WATensile strengthFull sizeJ D NA WA WA NATensile strengthMachined specimen D NA WA WA NATorqueK (prevailing) D WA WA NA NATorque (torsional strength) D WA WA NA NAYield strengthFull size D NA WA NA NAYield strengthMachin
48、ed specimen D NA WA NA NAA Final inspection of a characteristic may be carried out at any stage of manufacture, provided the characteristic is not subject to change in any further manufacturing orprocessing operation. Therefore, the testing of those samples may be deducted from the sample level spec
49、ified.B Quantity of samples is in Table 3, Sample Size.C A certified copy of the materials chemical or product analysis shall be furnished with each shipping lot, and the shipping lot shall have documentation providingtraceability to 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 onthe purchase order.D Steel making practice (course or fine grain) shall be included with the material producers chemical analysis report.E Surf
