1、BS EN ISO15609-4:2009ICS 25.160.10NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBRITISH STANDARDSpecification andqualification ofwelding proceduresfor metallic materials Welding procedurespecificationPart 4: Laser beam welding (ISO15609-4:2009)This British Standard was publis
2、hed under the authority of the Standards Policy and Strategy Committee on 31 July2009. BSI 2009ISBN 978 0 580 57764 2Amendments/corrigenda issued since publicationDate CommentsBS EN ISO 15609-4:2009National forewordThis British Standard is the UK implementation of EN ISO 15609-4: 2009. It supersedes
3、 BS EN ISO 15609-4:2004 which is withdrawn.The UK participation in its preparation was entrusted to Technical Committee WEE/36, Qualification of welding personnel and welding procedures.A list of organizations represented on this committee can be obtained on request to its secretary.This publication
4、 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.EUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN ISO 15609-4May 2009ICS 25.160.10 Supersedes EN
5、 ISO 15609-4:2004 English VersionSpecification and qualification of welding procedures for metallicmaterials - Welding procedure specification - Part 4: Laser beamwelding (ISO 15609-4:2009)Descriptif et qualification dun mode opratoire de soudagepour les matriaux mtalliques - Descriptif dun modeopra
6、toire de soudage - Partie 4: Soudage par faisceaulaser (ISO 15609-4:2009)Anforderung und Qualifizierung von Schweiverfahren frmetallische Werkstoffe - Schweianweisung - Teil 4:Laserstrahlschweien (ISO 15609-4:2009)This European Standard was approved by CEN on 14 May 2009.CEN members are bound to com
7、ply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the CEN Manageme
8、nt Centre or to any CEN member.This European 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 CEN Management Centre has the same status as theoff
9、icial versions.CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,Romania, Slovakia, Slov
10、enia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGManagement Centre: Avenue Marnix 17, B-1000 Brussels 2009 CEN All rights of exploitation in any form and by any means reservedworldwide for CEN nation
11、al Members.Ref. No. EN ISO 15609-4:2009: EBS EN ISO 15609-4:2009EN ISO 15609-4:2009 (E) 3 Foreword This document (EN ISO 15609-4:2009) has been prepared by Technical Committee ISO/TC 44 “Welding and allied processes“ in collaboration with Technical Committee CEN/TC 121 “Welding” the secretariat of w
12、hich is held by DIN. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by November 2009, and conflicting national standards shall be withdrawn at the latest by November 2009. Attention is drawn to the
13、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. This document supersedes EN ISO 15609-4:2004. According to the CEN/CENELEC Internal Regulations, the national st
14、andards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland,
15、 Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. Endorsement notice The text of ISO 15609-4:2009 has been approved by CEN as a EN ISO 15609-4:2009 without any modification. BS EN ISO 15609-4:2009ISO 15609-4:2009(E) ISO 2009 All rights reserved iiiContents Pa
16、ge Foreword iv 1 Scope . 1 2 Normative references . 1 3 Terms and definitions. 1 4 Technical content of welding procedure specification. 3 4.1 General. 3 4.2 Welding process . 3 4.3 Manufacturer . 4 4.4 Equipment . 4 4.5 Parent materials 5 4.6 Filler or other additional material(s) . 5 4.7 Joint des
17、ign. 5 4.8 Joint and surface preparation . 5 4.9 Jigs, fixtures and tooling . 6 4.10 Welding position. 6 4.11 Backing 6 4.12 Welding technique 6 4.13 Welding parameters 6 4.14 Preheating and post-weld heat treatment 7 4.15 Operations after welding 7 Annex A (informative) Examples of welding procedur
18、e specification 8 Bibliography . 13 BS EN ISO 15609-4:2009ISO 15609-4:2009(E) iv ISO 2009 All rights reservedForeword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is
19、normally carried out through ISO technical committees. Each member 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
20、in the work. ISO collaborates closely with the International Electrotechnical 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 pre
21、pare International Standards. Draft International Standards adopted 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
22、some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. ISO 15609-4 was prepared by Technical Committee ISO/TC 44, Welding and allied processes, Subcommittee SC 10, Unification of requirements in the
23、field of metal welding. This second edition cancels and replaces the first edition (ISO 15609-4:2004), which has been technically revised. ISO 15609 consists of the following parts, under the general title Specification and qualification of welding procedures for metallic materials Welding procedure
24、 specification: Part 1: Arc welding Part 2: Gas welding Part 3: Electron beam welding Part 4: Laser beam welding Part 5: Resistance welding The following part is planned: Part 6: Laser arc hybrid welding Requests for official interpretations of any aspect of this part of ISO 15609 should be directed
25、 to the Secretariat of ISO/TC 44/SC 10 via your national standards body, a complete listing of which can be found at www.iso.org. BS EN ISO 15609-4:2009INTERNATIONAL STANDARD ISO 15609-4:2009(E) ISO 2009 All rights reserved 1Specification and qualification of welding procedures for metallic material
26、s Welding procedure specification Part 4: Laser beam welding 1 Scope This part of ISO 15609 specifies requirements for the content of the welding procedure specification (WPS) for laser beam welding processes, including overlay welding. It is not applicable to other processes for cladding (e.g. ther
27、mal spraying). This part of ISO 15609 is part of a series of standards, and details of this series are given in ISO 15607:2003, Annex A. Variables listed in this part of ISO 15609 are those influencing the quality and properties of the welded joint. The dimensions mentioned in this part of ISO 15609
28、 influence the metallurgical and mechanical qualities, the geometry of the structural member and other important performance properties. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited appl
29、ies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 4063, Welding and allied processes Nomenclature of processes and reference numbers ISO 6947, Welds Working positions Definitions of angles of slope and rotation ISO 14175, Welding consu
30、mables Gases and gas mixtures for fusion welding and allied processes ISO 15607:2003, Specification and qualification of welding procedures for metallic materials General rules ISO/TR 25901:2007, Welding and related processes Vocabulary 3 Terms and definitions For the purposes of this document, the
31、terms and definitions given in ISO 15607:2003, ISO/TR 25901:2007 and the following apply. 3.1 slope up beam welding controlled increase of the beam power at the beginning of the welding ISO/TR 25901:2007, definition 2.337 BS EN ISO 15609-4:2009ISO 15609-4:2009(E) 2 ISO 2009 All rights reserved3.2 sl
32、ope down controlled decrease of the beam power at the end of the welding NOTE 1 Adapted from ISO/TR 25901:2007, definition 2.336. NOTE 2 The slope down region is the region on the workpiece in which the effects of slope down occur. It can consist of one or two of the following areas, depending on th
33、e selected welding mode. a) In full penetration welding, it can consist of a region where beam penetration is still complete, and a region where penetration is partial or decreasing. b) In partial penetration welding, it can consist of a region where penetration decreases continuously. 3.3 working d
34、istance beam welding distance between the surface of the workpiece and a standard reference point of the equipment which is traceable to the true focusing lens or mirror centre ISO/TR 25901:2007, definition 2.472 NOTE This is a practical reference distance only. 3.4 tacking pass pass made to hold th
35、e parts to be welded in proper alignment until the final welds are made NOTE 1 Adapted from ISO/TR 25901:2007, definition 2.370. NOTE 2 This can be produced by a continuous or discontinuous pass with partial penetration. 3.5 pass run single operation of welding that is part of the production of a co
36、mpleted weld NOTE 1 Adapted from ISO/TR 25901:2007, definition 2.312. NOTE 2 The term “pass” is commonly used in beam welding. 3.6 cosmetic pass pass for superficial remelting of the weld in order to enhance appearance NOTE 1 Adapted from ISO/TR 25901:2007, definition 2.75. NOTE 2 This pass can be p
37、erformed with a defocused or oscillating beam. 3.7 overlap beam welding portion of the weld pass remelted prior to the slope down ISO/TR 25901:2007, definition 2.249 NOTE For overlay welding, portion of a welding pass remelted by the adjoining pass. BS EN ISO 15609-4:2009ISO 15609-4:2009(E) ISO 2009
38、 All rights reserved 33.8 back support piece of metal or other auxiliary material placed against the workpiece on the back face of the joint in order to retain the molten weld metal NOTE Adapted from ISO/TR 25901:2007, definition 2.24. 3.9 focal length beam welding distance between the centre of the
39、 focusing lens or mirror and the focal spot ISO/TR 25901:2007, definition 2.146 NOTE In a thick lens or system of lenses, the principal plane is often inside the lens. For set-up purposes, operators often use the “back focal length”, which is the distance from the front surface of a focusing lens or
40、 mirror system to the focal spot. 3.10 focal spot beam welding part of the beam beyond the focusing system where the beam comes to a minimum cross-sectional area ISO/TR 25901:2007, 2.147 3.11 beam shaping adapting of the geometry of the beam effective area and the power density distribution by suita
41、ble optical components 3.12 carrier gas overlay welding gas used to transport filler material to the molten pool NOTE Typical carrier gases are nitrogen, helium and argon. 4 Technical content of welding procedure specification 4.1 General The WPS shall provide all information required to make a weld
42、. The WPS may cover a certain range of thicknesses of the joined parts and may also cover a range of parent metals and even filler metals. Some manufacturers additionally prefer to prepare work instructions for each specific job as part of the detailed production planning. Information listed below i
43、s adequate for most welding operations. For some applications, it is necessary to supplement or reduce the list. The relevant information shall be specified in the WPS. Ranges and tolerances, according to the manufacturers experience, shall be specified when appropriate. An example of a typical WPS
44、format is shown in Annex A. 4.2 Welding process The welding process is 52, in accordance with ISO 4063. BS EN ISO 15609-4:2009ISO 15609-4:2009(E) 4 ISO 2009 All rights reserved4.3 Manufacturer identification of the manufacturer; identification of the WPS; reference to the welding procedure qualifica
45、tion record (WPQR) or other documents, as required. 4.4 Equipment 4.4.1 General Identification of any equipment. 4.4.2 Laser welding equipment type of source (for example Nd:YAG or CO2), model, make; nominal power; continuous wave or pulsed; number of lasers combined; manufacturers or measured value
46、s for the beam quality parameters: beam transverse electro-magnetic mode (TEM); beam divergence; wavelength; beam polarization and orientation; beam parameter product (BPP). 4.4.3 Beam delivery and focusing system method of transmission (fibres, mirrors, including beam collimators, if used); method
47、of beam shaping (e.g. scanner, integrator, diffractive lenses); distance from beam source to focusing system, if necessary; beam diameter on entrance to focusing system; focusing optics; focal length; nominal focal spot size and method of measuring, if required; beam path protection system. 4.4.4 Pr
48、ocess gas supply system A description (schematic diagram) showing design, position of nozzle(s) for plasma suppression gas in relation to the joint, welding direction and welding point shall be specified. Operation(s) and dimensions of the molten pool protection shall be specified. BS EN ISO 15609-4
49、:2009ISO 15609-4:2009(E) ISO 2009 All rights reserved 5In the case of overlay welding, the composition and flow rate of the gas stream carrying the powder metal shall be specified. 4.4.5 Filler material feeding system Description (schematic) showing design, position of the filler material feeding system in relation to the joint, welding direction and welding point (if any). 4.5 Parent materials 4.5.1 Parent material type/grade the designat
