1、May 2015Translation by DIN-Sprachendienst.English price group 11No part of this translation 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.
2、160.40!%Bj0“2317113www.din.deDDIN EN ISO 10447Resistance welding Testing of welds Peel and chisel testing of resistance spot and projection welds(ISO 10447:2015);English version EN ISO 10447:2015,English translation of DIN EN ISO 10447:2015-05Widerstandsschweien Prfung von Schweiverbindungen Schl- u
3、nd Meielprfung von Widerstandspunkt- und Buckelschweiverbindungen(ISO 10447:2015);Englische Fassung EN ISO 10447:2015,Englische bersetzung von DIN EN ISO 10447:2015-05Soudage par rsistance Essais des soudures Essais de pelage et de dboutonnage au burin appliqus aux soudures par rsistance parpoints e
4、t par bossages (ISO 10447:2015);Version anglaise EN ISO 10447:2015,Traduction anglaise de DIN EN ISO 10447:2015-05SupersedesDIN EN ISO 10447:2007-09www.beuth.deIn case of doubt, the German-language original shall be considered authoritative.Document comprises 17 pages05.15 DIN EN ISO 10447:2015-05 2
5、 A comma is used as the decimal marker. National foreword This document (EN ISO 10447:2015) has been prepared by Technical Committee ISO/TC 44 “Welding and allied processes” in collaboration with Technical Committee CEN/TC 121 “Welding and allied processes” (Secretariat: DIN, Germany). The responsib
6、le German body involved in its preparation was the DIN-Normenausschuss Schweien und verwandte Verfahren (DIN Standards Committee Welding and Allied Processes), Working Committee NA 092-00-12 AA Widerstandsschweien (DVS AG V 3). The DIN Standards corresponding to the International Standards referred
7、to in this document are as follows: ISO 14270 DIN EN ISO 14270 ISO 14329 DIN EN ISO 14329 ISO 17677-1 DIN EN ISO 17677-1 Amendments This standard differs from DIN EN ISO 10447:2007-09 as follows: a) normative references have been updated; b) Figure 5 b) is now displayed three dimensionally; c) a Bib
8、liography has been added. Previous editions DIN ISO 10447: 1994-11 DIN EN ISO 10447: 2007-09 National Annex NA (informative) Bibliography DIN EN ISO 14270, Specimen dimensions and procedure for mechanized peel testing resistance spot, seam and embossed projection welds DIN EN ISO 14329, Resistance w
9、elding Destructive tests of welds Failure types and geometric measurements for resistance spot, seam and projection welds DIN EN ISO 17677-1, Resistance welding Vocabulary Part 1: Spot, projection and seam welding EN ISO 10447February 2015 ICS 25.160.40 Supersedes EN ISO 10447:2007English Version Re
10、sistance welding - Testing of welds - Peel and chisel testing of resistance spot and projection welds (ISO 10447:2015) Soudage par rsistance - Essais des soudures - Essais depelage et de dboutonnage au burin appliqus auxsoudures par rsistance par points et par bossages(ISO 10447:2015)This European S
11、tandard 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 status of a national standard without any alteration. Up-to-date lists and bibliographical references concer
12、ning 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, German). A version in any other language made by translation under the responsibility of a CEN member into
13、 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, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Ge
14、rmany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey andUnited Kingdom. CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2015 CEN All rights of exp
15、loitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 10447:2015 EEUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGEUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMWiderstandsschweien Prfung von Schweiverbin
16、dungen - Schl- und Meielprfung von Widerstandspunkt- und Buckelschweiverbindungen (ISO 10447:2015) ContentsPage Foreword . 3 Introduction . 4 1 Scope . 5 2 Normative references. 5 3 Terms and definitions 5 4 Test specimens . 6 5 Test procedure 7 5.1 Chisel test . 7 5.2 Peel test . 9 5.3 Measurement
17、of weld size . 9 6 Test report . 14 Bibliography 15 2DIN EN ISO 10447:2015-05 EN ISO 10447:2015 (E) Foreword 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 secretari
18、at 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 August 2015, and conflicting national standards shall be withdrawn at the latest by August 2015. Attention is drawn to t
19、he 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 10447:2007. According to the CEN-CENELEC Internal Regulations, the national s
20、tandards organizations of the following countries are bound 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,
21、 Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,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. “ ”3DIN EN ISO 10447:2015-05EN ISO 1
22、0447:2015 (E)IntroductionThis edition of ISO 10447 includes 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 17677-1.4DIN EN ISO 10447:2015-05 EN ISO
23、10447:2015 (E) 1 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 or more sheets in the thickness range of 0,5 mm to 3,0 mm.The ai
24、m 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 covered in ISO 14270.2 Normative referencesThe following docume
25、nts, 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 (including any amendments) applies.ISO 14270, Specimen dimensio
26、ns 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, the terms and definitions given in ISO 17677-1 and the followi
27、ng 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 1.3.2peel testdestructive test in which welds are tested by applying a
28、peel force that results in stresses primarily normal to the surface of the joint interfaceNote 1 to entry: See Figure 2a and Figure 2b.5DIN EN ISO 10447:2015-05EN ISO 10447:2015 (E)a) Type 1 (recessed chisel)b) Type 2 (testing from one side)c) Type 3 (testing from both sides)Figure 1 Chisel testing
29、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 specimensWhen used for quality control in production, tests shall be conducted on actual components or specimens taken from actual com
30、ponents.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 produced from the same material used for the component, and welded under conditions adapted to simulate and produce the same require
31、d 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 throat of the machine to approximate the magnetic effect of the workpiece under production conditions.6DIN EN ISO 10447:2015-05 E
32、N ISO 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 shown in Figure 3 and Figure 4. The chisel geometry should be chosen based on the workpiece thickness and geometry, weld diameter, distance bet
33、ween 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 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
34、e.g. pneumatic, electric or hydraulic drive.Dimensions in millimetresa) Chisels for weld diameter 2 mm)Key1 arbitrary valueFigure 4 Examples of dimensions of chisels for non-destructive chisel test8DIN EN ISO 10447:2015-05 EN ISO 10447:2015 (E) Table 1 Selection of recommended chisels for chisel tes
35、tingChisel design Test type (Destructive or non-destructive)For testingWeld diameter, dw(mm)Plate thickness, t (mm)Figure 3a Both 2,0For 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
36、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 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 testin
37、g, 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 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 mor
38、e sheets, the test shall be made between each adjacent pair of sheets. If fracture has not occurred after testing, the components shall be 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 ne
39、ar the weld are slowly peeled apart until all welds under test are completely fractured. A roller tool, pincers, pliers, vise, or mechanized 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 acco
40、rdance with Figure 5a. Testing using a vise and pliers shall be in accordance with Figure 5b.For materials that are too thick or too strong 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 m
41、achine or other suitable mechanized equipment.Fracture mode and plug size can vary depending on the direction of the applied force.Peel testing 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 all
42、ows the measurement of the weld size and assessment of the failure type in accordance with ISO 17677-1. In the case of mechanized testing 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 t
43、o determine the weld size (dw) in accordance with Figure 6 and Figure 7b.9DIN EN ISO 10447:2015-05EN ISO 10447:2015 (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 configurations10DIN EN I
44、SO 10447:2015-05 EN ISO 10447:2015 (E) a) Symmetrical plug ab) Asymmetrical plug ac) Partial plug bKey1 interfacial fractureadd ddwp= +()122/bdddw=+()122/ anddddp=+()232/Figure 6 Examples of weld diameter measurements when plug failures are observed11DIN EN ISO 10447:2015-05EN ISO 10447:2015 (E)Prec
45、autions should be taken when measuring weld size, particularly for asymmetrical 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 measu
46、red. A knife-edged gauge or measuring device as shown in Figure 7a is used for 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
47、 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 the ap
48、plication, for asymmetric welds, the ratio between d1and d2, shall be specified and included in the test report.The strength of the weld might vary depending on the direction of the applied force when the weld shape is asymmetric.Weld diameter dimensions should be rounded down to the nearest 0,1 mm.
49、 In the case of an interface failure (see Figure 7b), the weld diameters (d1and d2) should be measured using a pocket lens or magnifier with an incorporated scale to determine the edge of the interfacial fracture accurately. If a smooth pressure welded bond zone (corona bond) is present, only the rough fracture zone shall be measured.12DIN EN ISO 10447:2015-05 EN ISO 10447:2015 (E) a) Plug failureb) Interface failure cKey1 jaws of knife-edged me
