BS EN ISO 10447-2015 Resistance welding Testing of welds Peel and chisel testing of resistance spot and projection welds《电阻焊接 焊接试验 电阻点焊和凸焊的剥离和凿剥离测试》.pdf

1、BSI Standards PublicationBS EN ISO 10447:2015Resistance welding Testingof welds Peel and chiseltesting of resistance spot andprojection weldsBS EN ISO 10447:2015 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN ISO 10447:2015. It supersedes BS EN ISO 10447:2007 w

2、hich iswithdrawn.The UK participation in its preparation was entrusted to Technical 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 co

3、ntract. Users are responsible for its correct application. The British Standards Institution 2015.Published by BSI Standards Limited 2015ISBN 978 0 580 79583 1 ICS 25.160.40 Compliance with a British Standard cannot confer immunity from legal obligations.This British Standard was published under the

4、 authority of the Standards Policy and Strategy Committee on 28 February 2015.Amendments/corrigenda issued since publicationDate T e x t a f f e c t e dEUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 10447 February 2015 ICS 25.160.40 Supersedes EN ISO 10447:2007English Version Resistance we

5、lding - Testing of welds - Peel and chisel testing of resistance spot and projection welds (ISO 10447:2015) Soudage par rsistance - Essais des soudures - Essais de pelage et de dboutonnage au burin appliqus aux soudures par rsistance par points et par bossages (ISO 10447:2015) Widerstandsschweien -

6、Schl- und Meielprfung von Widerstandspunkt- und Buckelschweiverbindungen (ISO 10447:2015) This European Standard was approved by CEN on 12 December 2014. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the sta

7、tus 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 CEN-CENELEC Management Centre or to any CEN member. This European Standard exists in three official versions (English, French, G

8、erman). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croa

9、tia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and U

10、nited Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2015 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No.

11、EN ISO 10447:2015 EBS EN ISO 10447:2015Foreword This document (EN ISO 10447:2015) has been prepared by IIW “International Institute of Welding“ in collaboration with Technical Committee CEN/TC 121 “Welding and allied processes” the secretariat of which is held by DIN. This European Standard shall be

12、 given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by August 2015, and conflicting national standards shall be withdrawn at the latest by August 2015. Attention is drawn to the possibility that some of the elements of this document m

13、ay 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 10447:2007. According to the CEN-CENELEC Internal Regulations, the national standards organizations of the following countries are bound

14、 to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,

15、 Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. Endorsement notice The text of ISO 10447:2015 has been approved by CEN as EN ISO 10447:2015 without any modification. EN ISO 10447:2015 (E)BS EN ISO 10447:2015ISO 10447:2015(E) ISO 2015 All rights reserved iiiCo

16、ntents PageForeword ivIntroduction v1 Scope . 12 Normative references 13 Terms and definitions . 14 Test specimens 25 Test procedure 35.1 Chisel test. 35.2 Peel test . 55.3 Measurement of weld size . 56 Test report 10Bibliography .11BS EN ISO 10447:2015ISO 10447:2015(E)ForewordISO (the International

17、 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 which a technical committee has been est

18、ablished 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 all matters of electrotechnical standardiz

19、ation.The procedures used to develop this document and those intended for its further maintenance are described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the different types of ISO documents should be noted. This document was drafted in accordance wi

20、th the editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).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 responsible for identifying any or all such patent rights. Details of any

21、patent rights identified during the development of the document will be in the Introduction and/or on the ISO list of patent declarations received (see www.iso.org/patents).Any trade name used in this document is information given for the convenience of users and does not constitute an endorsement.F

22、or an explanation on the meaning of ISO specific terms and expressions related to conformity assessment, as well as information about ISOs adherence to the WTO principles in the Technical Barriers to Trade (TBT), see the following URL: Foreword Supplementary information.The committee responsible for

23、 this document is IIW, International Institute of Welding, Commission III.This third edition cancels and replaces the second edition (ISO 10447:2006), which has been technically revised.iv ISO 2015 All rights reservedBS EN ISO 10447:2015ISO 10447:2015(E)IntroductionThis edition of ISO 10447 includes

24、 figures showing failure types and fracture modes of resistance spot and embossed projection welds in accordance with ISO 14329:2003.The previous edition of ISO 10447 was revised to align it with ISO 17677-1. ISO 2015 All rights reserved vBS EN ISO 10447:2015BS EN ISO 10447:2015Resistance welding Te

25、sting of welds Peel and chisel testing of resistance spot and projection welds1 ScopeThis International Standard specifies the procedures and recommended tooling to be used for peel and chisel testing of resistance spot and projection welds. This International Standard applies to welds made in two o

26、r more sheets in the thickness range of 0,5 mm to 3,0 mm.The aim of these tests is to determine weld size and failure type when welds are destructively tested, and verification of welds by non-destructive chisel tests.NOTE The preferred method of peel testing seam welds (mechanized peel testing) is

27、covered in ISO 14270.2 Normative referencesThe following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document

28、(including any amendments) applies.ISO 14270, Specimen dimensions and procedure for mechanized peel testing resistance spot, seam and embossed projection weldsISO 17677-1, Resistance welding Vocabulary Part 1: Spot, projection and seam welding3 Terms and definitionsFor the purposes of this document,

29、 the terms and definitions given in ISO 17677-1 and the following apply.3.1chisel testdestructive test with a chisel in which welds are tested by applying a predominantly tensile force that results in stresses primarily normal to the surface of the joint interfaceNote 1 to entry: See Figure 1.3.2pee

30、l testdestructive test in which welds are tested by applying a peel force that results in stresses primarily normal to the surface of the joint interfaceNote 1 to entry: See Figure 2a and Figure 2b.INTERNATIONAL STANDARD ISO 10447:2015(E) ISO 2015 All rights reserved 1BS EN ISO 10447:2015ISO 10447:2

31、015(E)a) Type 1 (recessed chisel)b) Type 2 (testing from one side)c) Type 3 (testing from both sides)Figure 1 Chisel testing of resistance spot and protection welded jointsa) Manual peel test b) Mechanized peel testFigure 2 Peel testing of resistance spot and projection welded joints4 Test specimens

32、When used for quality control in production, tests shall be conducted on actual components or specimens taken from actual components.When used for setting welding parameters, where it is not practical to use actual components, separate welded test pieces may be used. The test pieces shall be produce

33、d from the same material used for the component, and welded under conditions adapted to simulate and produce the same required weld quality. The effects of different shunt or impedance conditions should be taken into account when producing the test pieces by inserting sufficient material in the thro

34、at of the machine to approximate the magnetic effect of the workpiece under production conditions.2 ISO 2015 All rights reservedBS EN ISO 10447:2015ISO 10447:2015(E)5 Test procedure5.1 Chisel testA chisel shall be used to separate the sheets adjacent to the weld under test.Typical chisel designs are

35、 shown in Figure 3 and Figure 4. The chisel geometry should be chosen based on the workpiece thickness and geometry, weld diameter, distance between welds, and whether the weld is to be destructively or non-destructively tested (see Table 1).The slot in the chisel shown in Figure 3 is only necessary

36、 if the axis of the chisel is placed at the centre of the weld.The chisel should be driven between the sheets manually by a hammer or tool with e.g. pneumatic, electric or hydraulic drive.Dimensions in millimetresa) Chisels for weld diameter 2 mm)Key1 arbitrary valueFigure 4 Examples of dimensions o

37、f chisels for non-destructive chisel test4 ISO 2015 All rights reservedBS EN ISO 10447:2015ISO 10447:2015(E)Table 1 Selection of recommended chisels for chisel testingChisel design Test type (Destructive or non-destructive)For testingWeld diameter, dw(mm)Plate thickness, t (mm)Figure 3a Both 2,0For

38、destructive chisel testing, a chisel shall be driven between the sheets and adjacent to the weld until fracture occurs in or adjacent to the weld, or until severe deformation occurs. The aim of this test is to separate the sheets so that a weld plug or interfacial fracture occurs to allow weld size

39、to be determined. In the case of a weld between three or more sheets, the test shall be made between each adjacent pair of sheets.For non-destructive chisel testing, a chisel shall be driven between the sheets and adjacent to the weld until the material yields or bends near the weld. The aim of this

40、 test is to obtain an indication that a weld has been made without causing fracture to occur in or adjacent to the weld. In the case of a weld between three or more sheets, the test shall be made between each adjacent pair of sheets. If fracture has not occurred after testing, the components shall b

41、e restored to their original shape.5.2 Peel testThe peel test is a destructive test for determining weld size and fracture mode of a welded lap joint.The sheets near the weld are slowly peeled apart until all welds under test are completely fractured. A roller tool, pincers, pliers, vise, or mechani

42、zed equipment (see Figure 2 and Figure 5) are typically used. If a roller tool is used, a diameter of 30 mm is recommended for sheet thicknesses up to 1 mm in accordance with Figure 5a. Testing using a vise and pliers shall be in accordance with Figure 5b.For materials that are too thick or too stro

43、ng to be tested manually, mechanized testing in accordance with ISO 14270 is recommended. The applied force may be generated by means of a normal tensile testing machine or other suitable mechanized equipment.Fracture mode and plug size can vary depending on the direction of the applied force.Peel t

44、esting can be applied to test specimens cut from production components or welded test pieces.5.3 Measurement of weld sizeA destructive chisel test or peel test allows the measurement of the weld size and assessment of the failure type in accordance with ISO 17677-1. In the case of mechanized testing

45、 in accordance with ISO 14270, it can also be possible to measure the force at failure.The maximum and minimum diameters of the weld (d1and d2) shall be measured to determine the weld size (dw) in accordance with Figure 6 and Figure 7b. ISO 2015 All rights reserved 5BS EN ISO 10447:2015ISO 10447:201

46、5(E)a) Peel testing using a vise and a rollerb) Peel testing using vice and plierKey1 test piece2 vice3 weld4 peeling direction5 pliersFigure 5 Manual peel test configurations6 ISO 2015 All rights reservedBS EN ISO 10447:2015ISO 10447:2015(E)a) Symmetrical plug ab) Asymmetrical plug ac) Partial plug

47、 bKey1 interfacial fractureadd ddwp= +()122/bdddw=+()122/ anddddp=+()232/Figure 6 Examples of weld diameter measurements when plug failures are observed ISO 2015 All rights reserved 7BS EN ISO 10447:2015ISO 10447:2015(E)Precautions should be taken when measuring weld size, particularly for asymmetri

48、cal welds.In the case of plug failure, fracture can occur in the parent metal away from the weld. If possible, this excess metal should be folded back or removed. If this is not possible, then only one dimension can be measured. A knife-edged gauge or measuring device as shown in Figure 7a is used f

49、or the measurement of weld diameters with plug failure. The average diameter of the weld, dw,is calculated from d1and d2using the following Formula (1):dddw=+()122/ (1)When only one dimension is measured, it is considered to be the weld diameter, dw.In the case of partial plug failure, the maximum and minimum plug diameters (d2and d3) should also be measured and recorded. The average diameter of the plug, dp, is calculated using the following Formula (2):dddp=+()232/ , for partial plug failure. (2)Depending upon t