1、BRITISH STANDARDBS EN ISO 16433:2007Incorporating amendment no. 1 (renumbers BS ISO 16433:2006 as BS EN ISO 16433:2007)Resistance welding Procedure for seam welding of uncoated and coated low carbon steelsThe European Standard EN ISO 16433:2007 has the status of a British StandardICS 25.160.10g49g50
2、g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58BS EN ISO 16433:2007This British Standard was published under the authority of the Standards Policy and St
3、rategy Committee on 28 April 2006 BSI 2007ISBN 978 0 580 59700 8National forewordThis British Standard is the UK implementation of EN ISO 16433:2007. It is identical with ISO 16433:2006. It supersedes BS 6265:1982 which is withdrawn.The UK participation in its preparation was entrusted to Technical
4、Committee WEE/29, Resistance welding.A list of organizations 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
5、 Standard cannot confer immunity from legal obligations.Amendments issued since publicationAmd. No. Date Comments17291 31 August 2007 Renumbers BS ISO 16433:2006 as BS EN ISO 16433:2007EUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN ISO 16433June 2007ICS 25.160.10English VersionResistance welding
6、- Procedure for seam welding of uncoatedand coated low carbon steels (ISO 16433:2006)Soudage par rsistance - Mode opratoire pour le soudage la molette des aciers bas carbone revtus et nonrevtus (ISO 16433:2006)Widerstandsschweien - Verfahren zumRollennahtschweien von niedriglegierten Sthlen mit oder
7、ohne metallischem berzug (ISO 16433:2006)This European Standard was approved by CEN on 19 May 2007.CEN members are bound to comply 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
8、-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, French, German). A version in any other language made by translationunder t
9、he 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, Cyprus, Czech Republic, Denmark, Estonia, Finland,France, Germany, Greece, Hungar
10、y, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGManagement Centre: rue
11、de Stassart, 36 B-1050 Brussels 2007 CEN All rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN ISO 16433:2007: EForeword The text of ISO 16433:2006 has been prepared by IIW, International Institute of Welding, and has been taken over as EN ISO
12、 16433:2007 by Technical Committee CEN/TC 121 “Welding” the secretariat of which 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 December 2007, and conflicting national standards s
13、hall be withdrawn at the latest by December 2007. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, G
14、ermany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. Endorsement notice The text of ISO 16433:2006 has been approved by CEN as a EN ISO 16433:2007 wit
15、hout any modification. EN ISO 16433:2007Reference numberISO 16433:2006(E)INTERNATIONAL STANDARD ISO16433First edition2006-04-01Resistance welding Procedure for seam welding of uncoated and coated low carbon steels Soudage par rsistance Mode opratoire pour le soudage la molette des aciers bas carbone
16、 revtus et non revtus EN ISO 16433:2007ii iiiContents Page Foreword. v Introduction . vi 1 Scope . 1 2 Normative references . 1 3 Terms and definitions. 2 4 Materials 2 4.1 Form . 2 4.2 Steel grades. 2 4.3 Surface conditions 2 5 Component design and manufacture . 3 5.1 Component design . 3 5.2 Compo
17、nent manufacture . 3 6 Process requirements 3 6.1 Seam welding with wide wheels 3 6.2 Seam welding with thin wheels . 3 6.3 Mash seam welding 4 6.4 Wire seam welding 4 6.5 Wide-electrode seam welding . 4 6.6 Foil seam welding. 4 7 Welding equipment. 5 7.1 Welding machine 5 7.2 Electrodes (wheels, ma
18、ndrels, pads, backing bars) . 5 7.2.1 Electrode materials. 5 7.2.2 Electrode dimensions. 5 7.3 Electrode-wheel cooling 7 8 Weldability assessment . 7 9 Weld assessment Type tests 8 9.1 Test pieces 8 9.1.1 General. 8 9.1.2 Manual peel test piece 8 9.1.3 Mechanised peel test piece . 8 9.1.4 Pressure t
19、est . 9 9.1.5 Metallurgical examination 9 9.2 Test requirements. 9 9.2.1 Weld dimensions 9 9.2.2 Manual peel test 9 9.2.3 Mechanised peel test 9 9.2.4 Pressure test . 9 9.2.5 Visual and metallurgical examination. 9 9.3 Acceptance requirements 10 10 Weld assessment routine tests 10 10.1 General. 10 1
20、0.2 Batch testing . 10 10.3 Test pieces and test procedures. 10 10.4 Number of tests. 10 10.5 Test requirements. 10 EN ISO 16433:2007iv 11 Routine production weld quality-control requirements 11 11.1 Weld size nugget width 11 11.2 Weld dimensions. 11 11.3 Weld failure mode . 12 11.4 Weld appearance
21、surface condition 12 11.5 Distortion . 12 12 Reclamation of non-conformant assemblies . 12 Annex A (informative) Welding equipment 13 Annex B (informative) Typical seam welding conditions . 14 Annex C (Informative) Partial list of steel types applicable to the standard 19 Bibliography . 20 EN ISO 16
22、433:2007vForeword 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 member body interested in a subject for
23、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 Electrotechnical Commission (IEC) on al
24、l 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 adopted by the technical committees are
25、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 patent rights. ISO shall not be held res
26、ponsible for identifying any or all such patent rights. ISO 16433 was prepared by the International Institute of Welding, recognized as an international standardizing body in the field of welding in accordance with Council Resolution. EN ISO 16433:2007vi Introduction Requests for official interpreta
27、tions of provisions in this standard should be made in writing and sent to the ISO Central Secretariat who will forward them to the IIW Secretariat for an official response. EN ISO 16433:20071Resistance welding Procedure for seam welding of uncoated and coated low carbon steels 1 Scope This Internat
28、ional Standard specifies requirements for resistance seam welding in the fabrication of assemblies of uncoated and metallic coated low carbon steel comprising two sheets of metal, where the maximum single sheet thickness of components to be welded is within the range 0,4 mm to 3 mm for the following
29、 materials: uncoated steels; hot-dip zinc or iron-zinc alloy (galvannealed) coated steel; electrolytic zinc, zinc-iron, or zinc-nickel coated steel; aluminium coated steel; zinc-aluminium coated steel. Organic-coated or primer-coated steels are not covered by this International Standard. Guidelines
30、for the design of appropriate seam welding equipment and welding conditions are given in Annexes A and B. These are for guidance only and may need to be adapted to suit the specified service conditions of the fabrication, prevailing production conditions, type of welding equipment, mechanical and el
31、ectrical characteristics of the welding machine, electrode configuration, and material. These requirements shall be taken from the relevant welding procedure specification for the application or procedure, where these exist. 2 Normative references The following referenced documents are indispensable
32、 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 669, Resistance welding Resistance welding equipment Mechanical and electrical requirements ISO 5
33、182:1991, Welding Materials for resistance welding electrodes and ancillary equipment ISO 10447, Welding Peel and chisel testing of resistance spot, projection and seam welds ISO 14270, Specimen dimensions and procedure for mechanized peel testing resistance spot, seam and embossed projection welds
34、ISO 14327, Resistance welding Procedures for determining the weldability lobe for resistance spot, projection and seam welding ISO 14329, Resistance welding Destructive tests of welds Failure types and geometric measurements for resistance spot, seam and projection welds ISO 15609-5, Specification a
35、nd qualification of welding procedures for metallic materials Welding procedure specification Part 5: Resistance welding EN ISO 16433:20072 ISO 15614-12, Specification and qualification of welding procedures for metallic materials Welding procedure test Part 12: Spot, seam and projection welding ISO
36、 17654, Destructive tests on welds in metallic materials Resistant welding Pressure test on resistance seam welds 3 Terms and definitions For the purposes of this document, the terms and definitions given in ISO 669 and ISO 14329 and the following apply. 3.1 continuous-current seam welding use of a
37、continuous-current waveform to make a weld NOTE A continuous weld nugget is formed along the weld seam. 3.2 interrupted-current seam welding use of a current program comprising two or more pulses of current (commonly known as “on-time”) separated by a pre-set cool time (commonly known as “off-time”)
38、 NOTE A weld nugget is produced during each pulse. 3.3 tread width width of the electrode face which is in contact with the work piece NOTE Sometimes this is called electrode face width. 4 Materials 4.1 Form The steel shall be flat rolled, in coils or cut to length, and shall be free of all harmful
39、imperfections. 4.2 Steel grades A partial list of steel grades to which this International Standard is applicable is given in Annex C. 4.3 Surface conditions Prior to welding, all surfaces of components to be seam welded shall be free of contaminants such as grease, scale, corrosion products, paint,
40、 dirt or excessive pitting. This condition shall be maintained until the welding process is completed. Uncoated hot-rolled steel shall be in the pickled condition. Certain surface treatments, such as the application of paint primers, rust preventions, and oils may be applied before welding, provided
41、 that the coating is uniform in thickness and it has been demonstrated that consistent welds, conforming to this International Standard, can be obtained. Excessive use of surface pre-treatments may adversely affect electrode life and should therefore be avoided. Coated steels can be supplied with a
42、chromate or phosphate passivation treatment. Phosphated mild steel may be used in certain applications. These materials can be resistance seam welded, although the welding parameters outlined in Annex B may require appropriate adjustment. Generally, only thin phosphate pre-treatment of steel is acce
43、ptable prior to seam welding. EN ISO 16433:200735 Component design and manufacture 5.1 Component design Components shall be designed and manufactured to provide adequate flange widths, free from potentially harmful physical deformations and internal stresses, and which can accommodate the weld seam.
44、 The flange width should also provide proper access for the electrodes and any necessary tooling. Account shall be taken of the degree of mechanization for guiding the components along the weld path/track during the welding process. The procedure shall include provision for reviewing the design as a
45、 result of tests, whether compliance with this International Standard is achievable or not. The design of the assembly to be seam welded shall take into account the process requirements specified in Clause 6, and the process variation appropriate to the application. The shape of both components shal
46、l be such that there is proper contact over the entire weld path. The weld size (seam width) and the distance (edge distance) from the centre of the weld to the nearest edge of the components shall comply with the process requirements given in Clause 6. NOTE Reducing the edge distance below the reco
47、mmended values can affect weld quality and reduce the operating tolerances. In this case, the nominal weld size may need to be specified below the value given in 9.2.1, and allowance for a lower weld strength made in the design. The pitch between two parallel seam welds, i.e., the centre-to-centre d
48、istance of the seam welds, shall not be less than 16 sheet thickness (t) and preferably larger. When seam welding sheets up to, and including, t = 1,5 mm, the inter-weld pitch shall therefore approximate to 3 We(We= tread width). To stabilize any shunting effects, this pitch shall be maintained with
49、in t 10 % over the entire length of the joint. In cases where smaller weld pitches are necessary, the weld current in subsequent seam welds should be increased to compensate for the shunting effect. 5.2 Component manufacture The components to be welded shall be free from distortions, burrs, wrinkles, internal stresses and other defects, which would in any way interfere with proper physical and electrical contact at the electrode or component interfaces during the welding process. 6 Process requirements 6.1 Seam
