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1、 Reference number ISO 15614-12:2004(E) ISO 2004 INTERNATIONAL STANDARD ISO 15614-12 First edition 2004-08-01 Specification and qualification of welding procedures for metallic materials Welding procedure test Part 12: Spot, seam and projection welding Descriptif et qualification dun mode opratoire d
2、e soudage pour les matriaux mtalliques preuve de qualification dun mode opratoire de soudage Partie 12: Soudage par points, la molette et par bossages ISO 15614-12:2004(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobes licensing policy, this file may be printe
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5、uitable for use by ISO member bodies. In the unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below. ISO 2004 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by
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7、l copyrightiso.org Web www.iso.org Published in Switzerland ii ISO 2004 All rights reserved ISO 15614-12:2004(E) ISO 2004 All rights reserved iii Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of
8、preparing International Standards is 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,
9、 in liaison with ISO, also take part 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 t
10、ask of technical committees is to prepare 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. Attent
11、ion is drawn to the possibility that 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 15614-12 was prepared by the European Committee for Standardization (CEN) in collaboration with Technic
12、al Committee ISO/TC 44, Welding and allied processes, Subcommittee SC 10, Unification of requirements in the field of metal welding, in accordance with the Agreement on technical cooperation between ISO and CEN (Vienna Agreement). Throughout the text of this document, read “.this European Standard.”
13、 to mean “.this International Standard.”. ISO 15614 consists of the following parts, under the general title Specification and qualification of welding procedures for metallic materials Welding procedure test: Part 1: Arc and gas welding of steels and arc welding of nickel and nickel alloys Part 2:
14、Arc welding of aluminium and its alloys Part 3: Arc welding of cast irons Part 4: Finishing welding of aluminium castings Part 5: Arc welding of titanium, zirconium and their alloys Part 6: Arc welding of copper and its alloys Part 7: Corrosion resistant overlay, cladding restore and hardfacing Part
15、 8: Welding of tubes to tube-plate joints Part 9: Arc underwater hyperbaric wet welding Part 10: Hyperbaric dry welding Part 11: Electron and laser beam welding Part 12: Spot, seam and projection welding Part 13: Resistance butt and flash welding Annex ZA provides a list of corresponding Internation
16、al and European Standards for which equivalents are not given in the text. ISO 15614-12:2004(E) iv ISO 2004 All rights reserved Contents Page Forewordv Introductionvi 1 Scope 1 2 Normative references 2 3 Terms and definitions .2 4 Preliminary welding procedure specification (pWPS) .2 5 Welding proce
17、dure test.2 6 Test piece .3 6.1 General3 6.2 Shape and dimensions of test pieces and test specimens for destructive testing3 6.2.1 General3 6.2.2 Macrosection3 6.3 Welding of components, test pieces or test specimens .3 7 Examination and testing .3 7.1 Extent of testing.3 7.2 Location and cutting of
18、 test specimens5 7.3 Visual testing5 7.4 Re-testing .5 8 Range of qualification .6 8.1 General6 8.2 Related to the manufacturer.6 8.3 Related to the material 6 8.4 Common to all welding procedures.6 8.4.1 Welding process 6 8.4.2 Type of current.6 8.4.3 Welding cycle.6 8.4.4 Postweld heat treatment i
19、n the welding equipment.6 8.4.5 Type of weld equipment7 8.4.6 Welding electrodes7 9 Welding Procedure Qualification Record form (WPQR)7 Annex ZA (normative) Normative references to International publications with their relevant European publication 8 Bibliography9 ISO 15614-12:2004(E) ISO 2004 All r
20、ights reserved v Foreword This document (EN ISO 15614-12:2004) has been prepared by Technical Committee CEN/TC 121 “Welding”, the secretariat of which is held by DIN, in collaboration with Technical Committee ISO/TC 44 “Welding and allied processes”. This European Standard shall be given the status
21、of a national standard, either by publication of an identical text or by endorsement, at the latest by February 2005, and conflicting national standards shall be withdrawn at the latest by February 2005. Normative references to International Standards are listed in normative annex ZA. According to t
22、he CEN/CENELEC Internal Regulations, the national standards organizations of the following 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, Luxem
23、bourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. ISO 15614-12:2004(E) vi ISO 2004 All rights reserved Introduction All new welding procedure qualifications are to be in accordance with this standard from the date of its issue. Th
24、is standard does not invalidate previous welding procedure qualifications made to former national standards or specifications provided the intent of the technical requirements is satisfied and the previous procedure qualifications are relevant to the application and production work on which they are
25、 to be employed. Also, where additional tests have to be carried out to make the qualification technically equivalent, it is only necessary to do the additional tests on a test piece which should be made in accordance with this standard. ISO 15614-12:2004(E) ISO 2004 All rights reserved 1 1 Scope Th
26、is standard specifies the tests which may be used for qualification of welding procedure specifications for spot, seam and projection welding processes. This standard is part of a series of standards. Details of this series are given in EN ISO 15607:2003, annex A. This standard defines the condition
27、s for carrying out tests and the limits of validity of a qualified welding procedure for all practical welding operations covered by this standard. The tests required to qualify the procedure for a particular component/assembly depend on the performance and quality requirements of the component/asse
28、mbly and shall be established before any qualification is undertaken. Tests shall be carried out in accordance with this standard unless more severe tests are specified by the relevant application standard or contract when these shall apply. The acceptability of applying the principles of the standa
29、rd to other resistance welding processes should be established before any qualification is undertaken. NOTE Specific service, material or manufacturing conditions may require more comprehensive testing than is specified by this standard. Such tests may include: - method for fatigue testing for spot
30、welded joints; - specimen dimensions and procedure for impact, shear and cross tension testing resistance spot and projection welds; - bend test; - surface crack detection; - ultrasonic tests, x-ray test; - chemical analysis; corrosion tests; - micro examination, including assessment of hot cracking
31、 behaviour; - tests of components or complete welded assemblies. This standard covers the following resistance welding processes, as defined in EN ISO 4063: 21 - spot welding; 211 - indirect spot welding; 212 - direct spot welding; 22 - seam welding; 221 - lap seam welding; 222 - mash seam welding;
32、225 - fail butt-seam welding; 226 - seam welding with strip; ISO 15614-12:2004(E) 2 ISO 2004 All rights reserved 23 - projection welding; 231 indirect projection welding; 232 direct projection welding. 2 Normative references The following referenced documents are indispensable for the application of
33、 this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 1418, Welding personnel Approval testing of welding operators for fusion welding and resistance weld setters for fully me
34、chanized and automatic welding of metallic materials. EN ISO 14270, Specimen dimensions and procedure for mechanized peel testing resistance spot, seam and embossed projection welds (ISO 14270: 2000). EN ISO 14271, Vickers hardness testing of resistance spot, projection and seam welds (low load and
35、micro hardness) (ISO 14271: 2000). EN ISO 14272, Specimen dimensions and procedure for cross tension testing resistance spot and embossed projection welds (ISO 14272: 2000). EN ISO 14273, Specimen dimensions and procedure for shear testing resistance spot, seam and embossed projection welds (ISO 142
36、73: 2000). EN ISO 17653, Destructive tests on welds in metallic materials Torsion test of resistance spot welds (ISO 17653: 2003.) EN ISO 15607:2003, Specification and qualification of welding procedures for metallic materials General rules (ISO 15607: 2003). EN ISO 15609-5, Specification and qualif
37、ication of welding procedures for metallic materials Welding procedure specification Part 5: Resistance welding (ISO 15609-5: 2004). ISO 669:2000, Resistance welding Resistance welding equipment Mechanical and electrical requirements. ISO 10447, Welding - Peel and chisel testing of resistance spot,
38、projection and seam welds. 3 Terms and definitions For the purposes of this European Standard, the terms and definitions given in EN ISO 15607:2003 and ISO 669:2000 apply. 4 Preliminary welding procedure specification (pWPS) The preliminary welding procedure specification shall be prepared in accord
39、ance with EN ISO 15609-5. 5 Welding procedure test The preparation and testing of test pieces shall be in accordance with clauses 6 and 7 of this standard. ISO 15614-12:2004(E) ISO 2004 All rights reserved 3 NOTE The resistance weld setter who undertakes the welding procedure test satisfactorily in
40、accordance with this standard is qualified for the appropriate range of qualification given in EN 1418. 6 Test piece 6.1 General The welded assembly, to which the welding procedure will relate to in production, shall be represented by actual components or by preparing a standardized test piece in ac
41、cordance with 6.2. Test specimens shall be cut from the actual components, the test piece or welded separately according to 6.3. Test specimens or test pieces from the same material with relevant flange widths or overlap length should be used. When applicable, shunting and inductive effects shall be
42、 taken into account. If required by the application standard, the direction of plate rolling shall be marked on the test piece. 6.2 Shape and dimensions of test pieces and test specimens for destructive testing 6.2.1 General The shape and dimensions of the test pieces and test specimen and the test
43、procedures are specified in the following standards: EN ISO 14270; EN ISO 14271; EN ISO 14272; EN ISO 14273; EN ISO 17653 and ISO 10447. 6.2.2 Macrosection The test specimens shall be prepared and etched to produce transverse and/or longitudinal sections in order to clearly show the nugget, the heat
44、 affected zone (HAZ) and, if necessary, the weld profile. The transverse macrosection shall include the unaffected parent material. 6.3 Welding of components, test pieces or test specimens Preparation of components, test pieces or test specimens and welding of test pieces or test specimen shall be c
45、arried out in accordance with the pWPS, and under the general conditions of production welding (parameters, equipment, etc.) which they shall represent. If tack welds are used in the case of seam welds, they should be included in the final test piece. Welding and testing of the test pieces shall be
46、witnessed by an examiner or examining body and the details of this shall be established before any qualification is undertaken. 7 Examination and testing 7.1 Extent of testing The testing includes both non-destructive testing (NDT) and/or destructive testing. The selection of test types and the numb
47、er of test specimens depends on the performance and quality requirements of the component/assembly and shall be established before any qualification is undertaken, examples are given in Table 1. ISO 15614-12:2004(E) 4 ISO 2004 All rights reserved When the standard deviation for test results in shear
48、 and cross tension tests is not necessary, the reduced number of specimens shall be established before any qualification is undertaken. Table 1 Examples for testing spot, seam and projection welding joints Test piece/specimen Test type Number of samples One spot or projection specimen Visual examina
49、tion Shear test Cross tension a Macrosection b Hardness test Torsion test c Peel test Chisel test all 11 11 2 if requested 11 11 11 Two spot or projection specimen d Visual examination Shear test e Cross tension test a Macrosection b Hardness test f Peel test Chisel test all 11 11 2 if requested 11 11 Multispot test or projection specimen g Visual examination Shear test h Peel test Macrosection b Hardness test f Chisel test all 11 11 2 if requested 11 Overlapped seamweld specimen (test