1、October 2009DEUTSCHE NORM English price group 11No part of this standard may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).ICS 25.160.10!$Z4Q“1551746
2、www.din.deDDIN EN ISO 15609-4Specification and qualification of welding procedures for metallicmaterials Welding procedure specification Part 4: Laser beam welding (ISO 15609-4:2009)English version of DIN EN ISO 15609-4:2009-10Anforderung und Qualifizierung von Schweiverfahren fr metallische Werksto
3、ffe Schweianweisung Teil 4: Laserstrahlschweien (ISO 15609-4:2009)Englische Fassung DIN EN ISO 15609-4:2009-10SupersedesDIN EN ISO 15609-4:2004-10www.beuth.deDocument comprises pages18 2 Requests for official interpretations of any aspect of this part of ISO 15609 should be directed to the Secretari
4、at of ISO/TC 44/SC 10 via your national standards body, a complete listing of which can be found at www.iso.org. The International Standards referred to in clause 2 have been published as the corresponding DIN EN ISO Standards. ISO/TR 25901:2007 has been published as DIN-Fachbericht (DIN Technical R
5、eport) ISO/TR 25901:2008-11. Amendments This standard differs from DIN EN ISO 15609-4:2004-10 as follows: a) EN ISO 15609-4:2009 has been adopted without any modification. b) The text of the standard has been revised. c) Laser beam cladding has been included. Previous editions DIN EN ISO 9956-11: 19
6、96-11 DIN EN ISO 15609-4: 2004-10 DIN EN ISO 15609-4:2009-10 National foreword This standard has been prepared by Technical Committee ISO/TC 44 “Welding and allied processes”, Subcommittee SC 10 “Unification of requirements in the field of metal welding” in collaboration with Technical Committee CEN
7、/TC 121 “Welding” (Secretariat: DIN, Germany), Subcommittee SC 1 “Specification and qualification of welding procedures for metallic materials”. The responsible German body involved in its preparation was the Normenausschuss Schweitechnik (Welding Standards Committee), Joint Committee NA 092-00-21 A
8、A Laserstrahlschweien und -schneiden (DVS AG V 9.2). ISO 15609 consists of the following parts, under the general title Specification and qualification of welding procedures for metallic materials Welding procedure specification: Part 1: Arc welding Part 2: Gas welding Part 3: Electron beam welding
9、Part 4: Laser beam welding Part 5: Resistance welding Part 6: Laser arc hybrid welding (under preparation) EUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN ISO 15609-4May 2009ICS 25.160.10 Supersedes EN ISO 15609-4:2004 English VersionSpecification and qualification of welding procedures for metall
10、icmaterials - Welding procedure specification - Part 4: Laser beamwelding (ISO 15609-4:2009)Descriptif et qualification dun mode opratoire de soudagepour les matriaux mtalliques - Descriptif dun modeopratoire de soudage - Partie 4: Soudage par faisceaulaser (ISO 15609-4:2009)Anforderung und Qualifiz
11、ierung 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 comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this Euro
12、peanStandard 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 Management Centre or to any CEN member.This European Standard exists in three official versions (English,
13、 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 theofficial versions.CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cypru
14、s, Czech Republic, Denmark, Estonia, Finland,France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT E
15、UROPEN 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 national Members.Ref. No. EN ISO 15609-4:2009: EEN ISO 15609-4:2009 (E) 2 Contents Page DIN EN ISO 1560
16、9-4:2009-10 Foreword .3 1 Scope4 2 Normative references4 3 Terms and definitions .4 4 Technical content of welding procedure specification .6 4.1 General .6 4.2 Welding process6 4.3 Manufacturer7 4.4 Equipment 7 4.5 Parent materials.8 4.6 Filler or other additional material(s)8 4.7 Joint design .8 4
17、.8 Joint and surface preparation8 4.9 Jigs, fixtures and tooling9 4.10 Welding position9 4.11 Backing.9 4.12 Welding technique.9 4.13 Welding parameters 9 4.14 Preheating and post-weld heat treatment.10 4.15 Operations after welding 10 Annex A (informative) Examples of welding procedure specificatio
18、n 11 Bibliography16 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 which is held by DIN. This European Standard shall be given the statu
19、s 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 possibility that some of the elements of this document may be the su
20、bject 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 standards organizations of the following countries are bound to implem
21、ent 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, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland a
22、nd 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. EN ISO 15609-4:2009 (E) DIN EN ISO 15609-4:2009-10 1 Scope This part of ISO 15609 specifies requirements for the content of the welding procedure specifi
23、cation (WPS) for laser beam welding processes, including overlay welding. It is not applicable to other processes for cladding (e.g. thermal 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 p
24、art of ISO 15609 are those influencing the quality and properties of the welded joint. The dimensions mentioned in this part of ISO 15609 influence the metallurgical and mechanical qualities, the geometry of the structural member and other important performance properties. 2 Normative references The
25、 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 (including any amendments) applies. ISO 4063, Welding and allied processes Nomenclature
26、of processes and reference numbers ISO 6947, Welds Working positions Definitions of angles of slope and rotation ISO 14175, Welding consumables Gases and gas mixtures for fusion welding and allied processes ISO 15607:2003, Specification and qualification of welding procedures for metallic materials
27、General rules ISO/TR 25901:2007, Welding and related processes Vocabulary 3 Terms and definitions For the purposes of this document, the 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 be
28、ginning of the welding ISO/TR 25901:2007, definition 2.337 DIN EN ISO 15609-4:2009-10 EN ISO 15609-4:2009 (E) 43.2 slope 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 wor
29、kpiece in which the effects of slope down occur. It can consist of one or two of the following areas, depending on the 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.
30、b) In partial penetration welding, it can consist of a region where penetration decreases continuously. 3.3 working distance 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
31、 25901:2007, definition 2.472 NOTE This is a practical reference distance only. 3.4 tacking pass pass made to hold the 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 discont
32、inuous pass with partial penetration. 3.5 pass run single operation of welding that is part of the production of a completed 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
33、weld in order to enhance appearance NOTE 1 Adapted from ISO/TR 25901:2007, definition 2.75. NOTE 2 This pass can be performed 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
34、welding, portion of a welding pass remelted by the adjoining pass. 5DIN EN ISO 15609-4:2009-10 EN ISO 15609-4:2009 (E) 3.8 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
35、/TR 25901:2007, definition 2.24. 3.9 focal length beam welding distance between the centre of the 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 ofte
36、n use the “back focal length”, which is the distance from the front surface of a focusing lens or 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 shapin
37、g adapting of the geometry of the beam effective area and the power density distribution by suitable 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
38、procedure specification 4.1 General The WPS shall provide all information required to make a weld. 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 instructi
39、ons for each specific job as part of the detailed production planning. Information listed below is 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 t
40、o the manufacturers experience, shall be specified when appropriate. An example of a typical WPS format is shown in Annex A. 4.2 Welding process The welding process is 52, in accordance with ISO 4063. DIN EN ISO 15609-4:2009-10 EN ISO 15609-4:2009 (E) 64.3 Manufacturer identification of the manufact
41、urer; identification of the WPS; reference to the welding procedure qualification 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; continuo
42、us wave or pulsed; number of lasers combined; manufacturers or measured values 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
43、 transmission (fibres, mirrors, including beam collimators, if used); method 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 siz
44、e and method of measuring, if required; beam path protection system. 4.4.4 Process 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 d
45、imensions of the molten pool protection shall be specified. 7DIN EN ISO 15609-4:2009-10 EN ISO 15609-4:2009 (E) In 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) s
46、howing 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 designation of the material(s) and any backing plates or supports used and any reference standard(s); the id
47、entification of the type of product (e.g. forged, cast, rolled, extruded). A WPS may cover a group of materials. 4.5.2 Dimensions of materials the thickness range of the joint; the range of outside diameters, for circular workpieces. 4.6 Filler or other additional material(s) the designation and ref
48、erence standard for any filler material(s) or other additional material(s) used in the joint; the dimensions of any filler material(s) or other additional material(s) used in the joint; any special cleaning or drying or handling instructions for any filler material(s) or other additional material(s)
49、 used in the joint; 4.7 Joint design A sketch showing the joint design/configuration, dimensions and tolerances, including surface finish, or reference to another standard which provides this information. 4.8 Joint and surface preparation 4.8.1 Joint preparation the joint preparation method, cleaning, degreasing, etc.; the protection of joint preparation, if necessary. 4.8.2 Surface preparation For overlay welding: the surface preparation meth
