EN ISO 16047-2005 en Fasteners - Torque clamp force testing (Incorporates Amendment A1 2012)《紧固件 扭矩 夹持力试验 ISO 16047-2005》.pdf

1、BRITISH STANDARDBS EN ISO 16047:2005Fasteners Torque/clamp force testingICS 21.060.01g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58+A1:2012Nationa

2、l forewordThis British Standard is the UK implementation of EN ISO 16047:2005+A1:2012. It is identical to ISO 16047:2005+A1:2012. It supersedes BS EN ISO 16047:2005, which is withdrawn.The UK participation in its preparation was entrusted to Technical Committee FME/9, Fasteners.A list of organizatio

3、ns represented on this committee can be obtained on request to its secretary.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application.Compliance with a British Standard cannot confer immunity from legal obligations.BS

4、EN ISO 16047:2005+A1:2012This British Standard waspublished under the authorityof the Standards Policy andStrategy Committee on22 February 2005 The British Standards Institution 2012. Published by BSI Standards Limited 2012Amendments/corrigenda issued since publicationDate Comments 31 December 2012

5、Implementation of ISO amendment 1:2012 with CEN endorsement A1:2012ISBN 978 0 580 78149 0The start and finish of text introduced or altered by amendment is indicated in the text by tags. Tags indicating changes to ISO text carry the number of the ISO amendment. For example, text altered by ISO amend

6、ment 1 is indicated by !“.EUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN ISO 16047:2005+A1ICS 21.060.01English versionFasteners - Torque/clamp force testing (ISO 16047:2005)Elments de fixation - Essais couple/tension (ISO16047:2005)Verbindungselemente - Drehmoment/Vorspannkraft-Versuch (ISO 16047

7、:2005)This European Standard was approved by CEN on 17 January 2005.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this Europeanstandards may be obtained on application to the Central Secretariat or to any CEN member.This European

8、Standard exists in three official versions (English, French, German). A version in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the officialversions.CEN members are the national sta

9、ndards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia,Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMI

10、TTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGManagement Centre: rue de Stassart, 36 B-1050 Brussels 2005 CEN All rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN ISO 16047:2005: ESeptember 2012Foreword T

11、his document (EN ISO 16047:2005) has been prepared by Technical Committee ISO/TC 2 “Fasteners“ in collaboration with Technical Committee CEN/TC 185 “Threaded and non-threaded mechanical fasteners and accessories“, the secretariat of which is held by DIN. This European Standard shall be given the sta

12、tus of a national standard, either by publication of an identical text or by endorsement, at the latest by August 2005, and conflicting national standards shall be withdrawn at the latest by August 2005. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the f

13、ollowing countries are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sw

14、eden, Switzerland and United Kingdom. Endorsement notice The text of ISO 16047:2005 has been approved by CEN as EN ISO 16047:2005 without any modifications. Foreword to amendment A1 This document (EN ISO 16047:2005/A1:2012) has been prepared by Technical Committee ISO/TC 2 “Fasteners” in collaborati

15、on with Technical Committee CEN/TC 185 “Fasteners” the secretariat of which is held by DIN. This Amendment to the European Standard EN ISO 16047:2005 shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by March 2013, and confl

16、icting national standards shall be withdrawn at the latest by March 2013. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. According to

17、 the CEN/CENELEC Internal Regulations, the national standards organisations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece

18、, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. Endorsement notice The text of ISO 16047:2005/Amd 1:2012 has been approved by CEN as a EN ISO 16047

19、:2005/A1:2012 without any modification. BS EN ISO 16047:2005+A1:2012 EN ISO 16047:2005+A1:2012 (E)Reference numberISO 16047:2005(E)INTERNATIONAL ADNATSDR ISO17406tide tsriFino-500210-20Fasteners Torque/clamp force testing lments de fixation Essais couple/tension Referecne unbmerOSI 74061002:)E(5INTE

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23、nu ehikletneve y ttah lborp aem leratit gno it is f,dnuo plsaee inform ttneC ehlar Secrteiraat ta the serddaig sleb nevwo. ii iiiContents Page Foreword iv 1 Scope 1 2 Normative references . 1 3 Terms and definitions. 2 4 Symbols and their designations 3 5 Principle of test . 4 5.1 General. 4 5.2 Det

24、ermination of coefficients of friction. 4 5.3 Determination of torque coefficient K (K-factor) 5 5.4 Determination of ratio T/F. 5 6 Apparatus. 5 6.1 Testing machine 5 6.2 Test fixture. 5 7 Test parts . 6 7.1 General. 6 7.2 Test-bearing plates or test washers 7 7.3 Test nuts for testing bolts, screw

25、s and studs 8 7.4 Test bolts or test screws for testing nuts. 8 8 Testing under standard conditions. 9 9 Testing under specific conditions. 9 10 Evaluation of results. 9 10.1 Determination of torque coefficient K. 9 10.2 Determination of coefficient of total friction tot. 10 10.3 Determination of co

26、efficient of friction between threads th. 10 10.4 Determination of coefficient of friction between bearing surfaces b11 10.5 Determination of yield clamp force Fy11 10.6 Determination of yield tightening torque Ty. 11 10.7 Determination of ultimate clamp force Fu11 10.8 Determination of ultimate tig

27、htening torque Tu. 11 11 Test report 11 11.1 General. 11 11.2 Description of fasteners to be tested 12 11.3 Description of test parts. 13 11.4 Testing machine 13 11.5 Test fixture. 14 11.6 Environmental conditions 14 11.7 Specific conditions . 14 11.8 Test results 14 Bibliography . 15 BS EN ISO 1604

28、7:2005+A1:2012 EN ISO 16047:2005+A1:2012 (E)iv Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each me

29、mber body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International E

30、lectrotechnical Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2. The main task of technical committees is to prepare International Standards. Draft International Standards ad

31、opted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. Attention is drawn to the possibility that some of the elements of this document may be the subject of pa

32、tent rights. ISO shall not be held responsible for identifying any or all such patent rights. ISO 16047 was prepared by Technical Committee ISO/TC 2, Fasteners, Subcommittee SC 1, Mechanical properties of fasteners. BS EN ISO 16047:2005+A1:2012 EN ISO 16047:2005+A1:2012 (E)1Fasteners Torque/clamp fo

33、rce testing 1 Scope This International Standard specifies the conditions for carrying out torque/clamp force tests on threaded fasteners and related parts. It is applicable, basically, to bolts, screws, studs and nuts made of carbon steel and alloy steel, whose mechanical properties are specified in

34、 ISO 898-1 ISO 898-2 having ISO metric threads with thread sizes M3 to M39. It is also applicable to the combination of other externally and internally threaded fasteners with a triangular ISO thread according to ISO 68-1. It is not applicable to set screws and similar threaded fasteners that are no

35、t under tensile stresses, nor to screws which form their own mating thread . Unless otherwise agreed, the tests are carried out at room temperature. However, tests carried out under standard conditions are made at a temperature of 10 C to 35 C. This method allows determination of the tightening char

36、acteristics of threaded fasteners and related parts. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (includin

37、g any amendments) applies. ISO 68-1, ISO general purpose screw threads Basic profile Part 1: Metric screw threads ISO 273:1979, Fasteners Clearance holes for bolts and screws ISO 898-1, Mechanical properties of fasteners made of carbon steel and alloy steel Part 1: Bolts, screws and studs ISO 898-2,

38、 Mechanical properties of fasteners Part 2: Nuts with specified proof load values Coarse thread ISO 4014, Hexagon head bolts Product grades A and B ISO 4017, Hexagon head screws Product grades A and B ISO 4032, Hexagon nuts, style 1 Product grades A and B ISO 4033, Hexagon nuts, style 2 Product grad

39、es A and B ISO 4042:1999, Fasteners Electroplated coatings and ,!“!Text deleted.“!Text deleted.“BS EN ISO 16047:2005+A1:2012 EN ISO 16047:2005+A1:2012 (E)2 ISO 4759-3:2000, Tolerances for fasteners Part 3: Plain washers for bolts, screws and nuts Product grades A and C ISO 4762, Hexagon socket head

40、cap screws ISO 6892, Metallic materials Tensile testing at ambient temperature ISO 7093-1, Plain washers Large series Product grade A ISO 8673, Hexagon nuts, style 1, with metric fine pitch thread Product grades A and B ISO 8674, Hexagon nuts, style 2, with metric fine pitch thread Product grades A

41、and B ISO 8765, Hexagon head bolts with metric fine pitch thread Product grades A and B ISO 15071, Hexagon bolts with flange Small series Product grade A ISO 15072, Hexagon bolts with flange with metric fine pitch thread Small series Product grade A 3 Terms and definitions For the purposes of this d

42、ocument, the following terms and definitions apply. 3.1 clamp force F axial tension acting on the bolt shank or compression acting on the clamped member during tightening 3.2 yield clamp force Fyclamp force at which the bolt shank or the engaged thread yield under combined stress condition in tighte

43、ning 3.3 ultimate clamp force Fumaximum clamp force under combined stress condition potentially induced before bolt shank fracture 3.4 tightening torque wrenching torque applied torque T overall torque applied on nut or bolt head in tightening 3.5 yield tightening torque Tytightening torque with whi

44、ch yield clamp force is gained 3.6 thread torque Tthtorque acting on bolt shank through mating threads during tightening BS EN ISO 16047:2005+A1:2012 EN ISO 16047:2005+A1:2012 (E)33.7 bearing surface friction torque Tbtorque acting on clamped member through bearing surfaces during tightening 3.8 ult

45、imate tightening torque Tutightening torque with which ultimate clamp force is gained 4 Symbols and their designations See Table 1. Table 1 Symbols and their designations Symbol Designation d Nominal thread diameter d2Basic pitch diameter of thread d4Diameter of hole of test fixture dhClearance hole

46、 diameter of washer or bearing part (nominal value) DbDiameter of bearing surface under nut or bolt head for friction (theoretical or measured) DoOuter diameter of bearing surface, dw minor dk min(see product standards) DpDiameter of plain area of bearing plate F Clamp force FpProof load according t

47、o ISO 898-1 or ISO 898-2, whichever is relevant FuUltimate clamp force FyYield clamp force h Thickness of test-bearing plate or test washer K Torque coefficient, TK = FdLcClamp length LtLength of complete thread between bearing surfaces P Pitch of the thread T Tightening torque TbBearing surface fri

48、ction torque TthThread torque TuUltimate tightening torque TyYield tightening torque Rotation angle bCoefficient of friction between bearing surfaces under nut or bolt head thCoefficient of friction between threads totCoefficient of total friction ! .“BS EN ISO 16047:2005+A1:2012 EN ISO 16047:2005+A

49、1:2012 (E)4 5 Principle of test 5.1 General A tightening torque is steadily applied to a bolt/nut or screw/nut assembly to generate a clamp force, and to measure and/or determine one or more of the tightening characteristics, which can include torque coefficient, coefficient of total friction, coefficient of friction between threads, coefficient of friction between bearing surfaces, yield clamp force, yield tightening torque, rotation angle and ultimate clamp force. In the range of elastic de