1、STD-BSI BS EN IS0 LSb20-ENGL 2000 D Lb24bb9 08b7905 883 Is BRITISH STANDARD Welding - Friction welding of metallic materials The European Standard EN IS0 156202000 has the status of a British Standard ICs 25.160.10 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMilTED BY COPYRIGHT LAW BS EN IS0 1562
2、0:2000 National foreword This British Standard is the official English language version o EN IS0 156202000. It is identical with IS0 156202000. It supersedes BS 6223 1990 which is withdrawn. The UK participation in its preparation was entrusted to Technical Committee WEW41, Friction welding, which h
3、as the responsibility to: been prepared under the direction of the Engineering AmdNo. Date Sector Committee, was published under the authority of the Standards Committee and comes into effect on 15 September 2000 O BSI 09-2000 - aid enquirem to understand the text; - present to the responsible inter
4、nationallEuropean committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; - monitor related intedonal and European developments and promulgate them in the UK. Comments A iist of organizations represented on this committee can be obtained on request
5、 to its secretary. Cross-references Attention is drawn to the fact that CEN and CENELEC Standards normally include an annex which lists normative references to international publications with their corresponding European publications. The British Standanis which implement these internationai or Euro
6、pean publications may be found in the BSI Standards Catalogue under the section entitled “Internationai Standards Correspondence Index”, or by using the “Find” facility of the BSI Standards Electronic Catalogue. A British Standard does not purport to include ali the necessary provisions of a contrac
7、t. Users of British Standards are responsible for their correct application Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, the EN IS0 title page, pages 2 to 37 and a back cov
8、er. The BSI copyright notice displayed in this document indicates when the document was last issued. ISBN O 580 34699 4 - STD.BSI BS EN IS0 15b2U-ENGL 2000 D 1b24bb OBb7707 b5b W EUROPEAhl STANDARD NORME EUROPENNE EUROPISCHE NORM EN IS0 15620 July 2000 ICs 25.1 60.00 English version Welding - Fricti
9、on welding of metallic materials (IS0 15620:2000) Soudage - Soudage par friction des matriaux mtalliques (IS0 15620:2000) Schweien - Reibschweien von metallischen Werkstoffen (IS0 156202000) This European Standard was approved by GEN on 10 March 2000. CEN members are bound to comply with the CENKENE
10、LEC Intemal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the Central Secretariat or to any GE
11、N member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the official versions. CEN m
12、embers are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Gemany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMITE EUROPEEN DE NORMALI
13、SATION EUROPISCHES KOMITEE FR NORMUNG Central Secretariat: rue de Stassart, 36 8-1050 Brussels Q 2000 CEN All rights of exploitation in any form and by any means reserved worldwide for GEN national Members. Ref. No. EN IS0 15620:2000 E STD*BSI BS EN IS0 LSb20-ENGL 2000 Lb29bb9 OBb790B 572 Page 2 EN
14、IS0 15620:2000 Contents Page Foreword . 3 Introduction . 4 1 Scope 4 2 Normative references 4 3 Termsand definitions 5 4 Welding knowledge 7 4.1 Process . 7 4.2 Materials and material combinations . 10 4.3 Friction welding machines 10 5 Quality requirements . 12 5.1 General . 12 5.2 Pre-welding cond
15、itions 12 5.3 Post-welding treatment . 13 5.4 Quality assurance 13 6 Welding procedure specification (WPS) 14 6.1 General . 14 6.2 Information related to the manufacturer 14 6.3 Information related to the material 14 6.4 Welding parameters 14 6.5 Joint . 15 6.6 Optionaldevices . 15 7 7.1 7.2 7.3 7.4
16、 7.5 7.6 7.7 Welding procedure approval . 15 Principles 15 Welding procedure tests . 15 Welding procedure approval record (WPAR) . 19 Previous experience 19 Circumstances mandating requalification . 19 Machine-specific nature of a WPS 19 Requalification procedure requirements 19 8 Weldingpersonnel 1
17、9 8.1 Friction welding machine operator 19 8.2 Friction welding machine setter 19 8.3 Welding coordination personnel (supervisor) . 20 Annex A (informative) . Relationship of welding parameters . 21 Annex B (informative) . Additional processes based on friction 23 Annex C (informative) . Material co
18、mbinations weldable by friction welding . 25 Annex D (informative) . Guidelines for quality assurance . 26 Annex E (informative) . Examination and test 27 Annex F (informative) . Manufacturers friction welding procedure specification (WPS) 29 Annex G (informative) . Characteristics of friction welde
19、d components 31 Annex H (informative) . Welding procedure approval record form (WPAR) . 35 Annex ZA (informative) . Clauses of this European Standard addressing essential requirements or other provisions of EU Directives . 38 STD=BSI BS EN IS0 L5b20-ENGL 2000 lb24bb7 08b7907 427 Page 3 EN IS0 15620:
20、ZOOO Foreword The text of EN IS0 15620:2000 has been prepared by Technical Committee CENKC 121 “Welding“, the secretariat of which is held by DS, in collaboration with Technical Committee ISOKC 44 “Welding and allied processes. This European Standard shall be given the status of a national standard,
21、 either by publication of an identical text or by endorsement, at the latest by January 2001, and conflicting national standards shall be withdrawn at the latest by January 2001. This European Standard has been prepared under a mandate given to CEN by the European Commission and the European Free Tr
22、ade Association, and supports essential requirements of EU Directive(s). For relationship with EU Directive(s), see informative Annex 24, which is an integral part of this standard. According to the CENKENELEC Internal Regulations, the national standards organizations of the following countries are
23、bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. STD=BSI BS EN IS0 LSb20-ENGL 2000 LbZqbb9 0867930 140 = Page
24、4 EN IS0 15620:2000 Introduction Friction welding is a method for making welds in the solid phase in which one component is moved relative to and in pressure contact with the mating component to produce heat at the faying surfaces, the weld being completed by the application of a force during or aft
25、er the cessation of relative motion. There are several forms of supplying energy and various forms of relative movements. The generation of friction heating results in a comparatively low joining temperature at the interface. This is largely the reason why friction welding is suitable for materials
26、and material combinations which are otherwise difficult to weld. The weld region is generally narrow and normally has a refined microstructure. Whilst the friction welding process deals primarily with components of circular cross section it does not preclude the joining of other component shapes. 1
27、Scope This standard specifies requirements for the friction welding of components manufactured from metals. It specifies requirements particular to rotational friction welding related to welding knowledge, quality requirements, welding procedure specification, welding procedure approval and welding
28、personnel. This standard is appropriate where a contract, an application standard or regulatory requirement requires the demonstration of the manufacturer s capability to produce welded constructions of a specified quality. It has been prepared in a comprehensive manner to be used as a reference in
29、contracts. The requirements given may be adopted in full or some may be deleted, if not relevant to the construction concerned. 2 Normative references This European Standard incorporates by dated or undated reference, provisions from other publications. These normative references are cited at the ap
30、propriate places in the text and the publications are listed hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply to this European Standard only when incorporated in it by amendment or revision. For undated references the latest edition of the pub
31、lication referred to applies (including amendments). EN 1289 Non-destructive examination of welds - Penetrant testing of welds - Acceptance levels Non-destructive examination of welds - Magnetic particle examination of welds Non-destructive examination of welds - Eddy current examination of welds by
32、 complex plane analysis Welding and allied processes - Nomenclature of processes and reference numbers (IS0 4063:1998) EN 1290 EN 1711 EN IS0 4063 STD*BSI BS EN IS0 LSb20-ENGL 2000 = Lb29bb9 O8b77LL 087 Page 5 EN IS0 15620:2000 3 Terms and definitions For the purposes of this standard, the following
33、 terms and definitions apply. 3.1 axial force Axial force between components to be welded. 3.2 axial pressure Pressure (force per unit area) on the faying surfaces. 3.3 burn-off len th Loss of IengE in the friction phase. 3.4 burn-off rate The rate of shortening of the components during application
34、of the friction force. 3.5 component A single item before welding. 3.6 component induced brakin Reduction in rotational speef resulting from friction between the interfaces. 3.7 contact force Axial force on contact of components. 3.8 contact torque Reaction torque ater friction start. 3.9 external b
35、raking Extemal braking reducing the rotational speed. 3.1 O fayin surface A suface of one component that is to be in contact with a surface of another component to form a joint. 3.1 1 forge force The force applied normal to the faying surfaces at the time when relative movement between the component
36、s is ceasing or has ceased. 3.1 2 forge length The amount by which the overall length of the components is reduced during the application of the forge force. 3.13 for e hase In tfe Fiction welding cycle the interval between the start and finish of application of the forge force. 3.14 forge pressure
37、The pressure (force per unit area) on the faying surfaces resulting from the axial forge force. 3.15 frge rate The rate of shortening of the components during the application of forge force. 3.16 forge time The time for which the forge force is applied to the components. 3.17 friction force(s) The f
38、orce( applied normal to the faying surfaces during the time that there is relative movement between the components. 3.1 8 f;iction phase In the friction welding cycle the interval in which the heat necessary for making a weld is generated by relative motion and the friction force) between the compon
39、ents, .e. from contact of iomponentsto the start f deceleration. _ STD-BSI BS EN IS0 LSbZO-ENGL 2000 Lb2LibbS OBb79L2 TI3 D Page 6 EN IS0 15620:2000 3.19 friction pressure s) The pressure(s) (orce f per unit area) on the faying surfaces resulting from the axial friction force. 3.20 friction time The
40、 time durin which relative movement between the components takes place at rotational speed and under application of t8e friction force(+ 3.21 interface The contact area developed between the faying surfaces after completion of the welding operation. 3.22 length allowance Extra material to allow for
41、loss of length. 3.23 overhang The distance a component projects from the fixture, or chuck in the direction of the mating component. 3.24 yripherial velocity 3.25 rotational speed Revolutions per minute of rotating component. 3.26 Sto ping phase In tle friction welding cycle the interval in which th
42、e relative motion of the components is decelerated to zero. 3.27 stop ing time The me required by the moving component to decelerate from friction speed to zero speed. eiocity of outer diameter of faying surfaces to be welded. 3.28 torque curve Torque characteristic between the two interfaces based
43、on time (contact, equilibrium, final torque). 3.29 total length loss (upset) The loss of length that occurs as a result of friction welding, .e. the sum of the burn-off length and the forge length. 3.30 total weld time Time elapsed between component contact and end of forging phase. 3.31 upset metal
44、 (flash 3.32 weld cross-section The areas to be welded. 3.33 welding cycle The succession of operations effected by the machine for making a weldment and the return to the initial position (excluding component-handling operations). 3.34 weldment Two or more components joined by welding. 3.35 pressur
45、e contact area The surface contact area of the components through which the force is transmitted. Parent metal prou 2 of the normal surfaces of the weldment as a result of friction welding. - STD.BSI BS EN IS0 15b20-ENGL 2000 = lb2i.lbb7 OBb7913 95T Page 7 EN IS0 15620:2000 The process variant where
46、 power or energy is provi- ded by an infinite duration source and maintained for 4 Welding knowledge 4.1 Process The classification of friction welding processes are listed in table 1. Angular osci I lat ion Table 1 - Classification of friction welding processes Orbital I Friction welding I I I Rela
47、tive mot ion classif cat ion I Energy classification I I Continuous drive I Stored energy I The process variant whe- re the energy for welding is supplied by the kinetic energy stored in a rotating system or fluid storage system I I Hybrid system I I Combining some features of both methods I A metho
48、d in which one component is rotated rela- tive to and in contact with the mating face of another component or components. A method in which one component is moved in a linear oscillating motion relative to and in contact with the mating face of another component. A method in which one component is m
49、oved in an angular oscillating motion about a common compo- nent axis relative to and in contact with the mating face of another compo- nent. A method in which one component is moved in a small circular motion rela- tive to and in contact with the mating face of another component. STDOBSI BS EN IS0 15b20-ENGL 2000 = Lb2LibbS OBb77LLi 8Sb Page 8 EN IS0 15620:2000 4.1.1 The energy input is provided by direct drive at predetermined rotational speed or speeds, figures 1 and 2. Direct drive rotational friction welding 1 2 3a 3b 4a 4b 5 Dri
