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1、BRITISH STANDARD BS EN ISO 14323:2006 Resistance spot welding and projection welds Destructive testing of welds Specimen dimensions and procedure for impact shear test and cross-tension testing The European Standard EN ISO 14323:2006 has the status of a British Standard ICS 25.160.40 ? Licensed Copy
2、: sheffieldun sheffieldun, na, Sun Nov 19 12:43:23 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN ISO 14323:2006 This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 May 2006 BSI 2006 ISBN 0 580 48378 9 National foreword This British Standard
3、 is the official English language version of EN ISO 14323:2006. It is identical with ISO 14323:2006. The UK participation in its preparation was entrusted to Technical Committee WEE/2, Testing of welds, which has the responsibility to: aid enquirers to understand the text; present to the responsible
4、 international/European committee any enquiries on the interpretation, or proposals for change, and keep UK interests informed; monitor related international and European developments and promulgate them in the UK. A list of organizations represented on this committee can be obtained on request to i
5、ts secretary. Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electroni
6、c Catalogue or of British Standards Online. 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 Standard does not of itself confer immunity from legal obligations. Summary of pages This
7、document comprises a front cover, an inside front cover, the EN ISO title page, the EN ISO foreword page, the ISO title page, pages ii to v, a blank page, pages 1 to 18, an inside back cover and a back cover. The BSI copyright notice displayed in this document indicates when the document was last is
8、sued. Amendments issued since publication Amd. No. DateComments Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 19 12:43:23 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 14323 May 2006 ICS 25.160.40 English Version Resistance spot welding and
9、 projection welds - Destructive testing of welds - Specimen dimensions and procedure for impact shear test and cross-tension testing (ISO 14323:2006) Soudage par rsistance par points et par bossages - Essais destructifs des soudures - Dimensions des prouvettes et procdure dessai de cisaillement par
10、choc et dessai de traction par choc sur prouvettes en croix (ISO 14323:2006) Widerstandspunkt- und Buckelschweien - Zerstrende Prfung von Schweiverbindungen - Probenabmessungen und Durchfhrung des Schlagscherzugversuchs und des Schlagkopfzugversuchs (ISO 14323:2006) This European Standard was approv
11、ed by CEN on 9 March 2006. 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 concerning such national sta
12、ndards may be obtained on application to the Central Secretariat 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 its own language and notified t
13、o the Central Secretariat has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands,
14、Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: rue de Stassart, 36 B-1050 Brussels 2006 CENAll rights of exploitation in any
15、form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 14323:2006: E Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 19 12:43:23 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Foreword This document (EN ISO 14323:2006) has been prepared by Technical Committee IIW “Interna
16、tional Institute of Welding“ in collaboration with 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 November 2006,
17、 and conflicting national standards shall be withdrawn at the latest by November 2006. According to the 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,
18、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. Endorsement notice The text of ISO 14323:2006 has been approved by CEN
19、 as EN ISO 14323:2006 without any modifications. EN ISO 14323:2006 Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 19 12:43:23 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Reference number ISO 14323:2006(E) INTERNATIONAL STANDARD ISO 14323 First edition 2006-05-01 Resistance spot welding and proje
20、ction welds Destructive testing of welds Specimen dimensions and procedure for impact shear test and cross-tension testing Soudage par rsistance par points et par bossages Essais destructifs des soudures Dimensions des prouvettes et procdure dessai de cisaillement par choc et dessai de traction par
21、choc sur prouvettes en croix EN ISO 14323:2006 Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 19 12:43:23 GMT+00:00 2006, Uncontrolled Copy, (c) BSI ii Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 19 12:43:23 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN ISO 14323:2006 iii Contents Page
22、Foreword iv Introduction v 1 Scope . 1 2 Normative references . 1 3 Terms and definitions. 1 4 Test specimen . 4 5 Test equipment and testing procedure 6 5.1 General. 6 5.2 Modified pendulum machine . 6 5.3 Drop-weight machine . 8 6 Test report . 12 Annex A (informative) Determination of absorbed en
23、ergy 13 Bibliography . 18 Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 19 12:43:23 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN ISO 14323:2006 iv Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The
24、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 established has the right to be represented on that committee. International organizations, governmental and non-gover
25、nmental, 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. Th
26、e main task 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
27、. 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. ISO 14323 was prepared by the International Institute of Welding, recognized as an international st
28、andardizing body in the field of welding in accordance with Council Resolution 42/1999. Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 19 12:43:23 GMT+00:00 2006, Uncontrolled Copy, (c) BSI v Introduction Requests for official interpretations of provisions in this standard should be made in wri
29、ting and sent to the ISO Central Secretariat who will forward them to the IIW Secretariat for an official response. EN ISO 14323:2006 Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 19 12:43:23 GMT+00:00 2006, Uncontrolled Copy, (c) BSI blank Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 1
30、9 12:43:23 GMT+00:00 2006, Uncontrolled Copy, (c) BSI 1 Resistance spot welding and projection welds Destructive testing of welds Specimen dimensions and procedure for impact shear test and cross-tension testing 1 Scope This International Standard covers destructive testing of welds. This Internatio
31、nal Standard specifies specimen dimensions and testing procedures for impact shear and cross-tension testing of resistance spot and embossed projection welds in overlapping sheets, in any metallic material of thickness 0,5 mm to 4 mm. 2 Normative references The following referenced documents are ind
32、ispensable 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 requirem
33、ents ISO 14272, Specimen dimensions and procedure for cross tension testing resistance spot and embossed projection welds ISO 14329, Resistance welding Destructive tests of welds Failure types and geometric measurements for resistance spot, seam and projection welds 3 Terms and definitions For the p
34、urposes of this document, the terms and definitions given in ISO 669 and ISO 14329 and the following apply. 3.1 corona bond area of the weld at the faying surfaces in which solid-phase bonding has occurred 3.2 impact cross-tension failure energy failure energy measured in the impact cross-tension te
35、st 3.3 impact cross-tension force maximum force measured in the impact cross-tension test 3.4 impact shear failure energy failure energy measured in the impact shear test EN ISO 14323:2006 Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 19 12:43:23 GMT+00:00 2006, Uncontrolled Copy, (c) BSI 2 3.
36、5 impact shear force maximum force measured in the impact shear test 3.6 interface failure fracture through the weld (nugget) between the sheets at the plane of the interface See Figure 1 b). 3.7 nominal weld diameter diameter of the plug (slug/button) measured at the base of the nugget See Figure 1
37、 a). 3.8 plug failure slug/button failure fracture in the base metal, the heat-affected zone, or in the nugget leaving a plug See Figure 1 a). 3.9 weld diameter d interface failure diameter of the fused zone measured at the interface, omitting the corona bond area See Figure 1 b). 3.10 weld diameter
38、 d partial plug failure mean diameter of the fused zone measured at the interface, omitting the corona bond area and the maximum diameter of the plug component of the failure NOTE The minimum diameter of the plug component should be quoted separately see Figure 1 a) and b). 3.11 weld diameter d plug
39、 failure average diameter of the plug See Figure 1 a). EN ISO 14323:2006 Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 19 12:43:23 GMT+00:00 2006, Uncontrolled Copy, (c) BSI 3 Key 1 symmetrical 2 asymmetrical 3 partial a d = dp = (d1 + d2)/2 b d = (d1 + d2)/2 and dp = (d2 + d3)/2 where dp is t
40、he mean plug diameter; d1 is the maximum weld diameter; d2 is the minimum weld diameter; d3 is the minimum width of plug. a) Weld with plug (slug) failure Figure 1 Measuring weld diameter EN ISO 14323:2006 Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 19 12:43:23 GMT+00:00 2006, Uncontrolled C
41、opy, (c) BSI 4 Key 1 sheared nugget 2 corona bond zone 3 nugget a Diameter of the corona. b Diameter of the nugget. b) Weld with interface failure, d dc Figure 1 (continued) 4 Test specimen Dimensions and form of the impact shear test specimen are shown in Figure 2 and Table 1. Dimensions and form o
42、f the impact cross-tension specimen are shown in Figure 3 (see ISO 14272). An example of a jig for welding the cross-tension specimen is shown in Figure 4. Two punched strips are placed at right angles to each other, held in the jig, and welded together. Key 1 direction of test load 2 weld Figure 2
43、Form of impact shear test specimen EN ISO 14323:2006 Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 19 12:43:23 GMT+00:00 2006, Uncontrolled Copy, (c) BSI 5 Table 1 Dimensions of impact shear test specimens Dimensions in millimetres Sheet thickness Overlap Width Length Overall length Unclamped
44、length t a b l ls lf 0,5 u t u 1,5 35 45 105 175 95 1,5 t u 3,0 45 60 138 230 105 3,0 t u 4,0 60 90 160 260 120 Dimensions in millimetres Key 1 weld is centred Figure 3 Form of impact cross-tension test specimen EN ISO 14323:2006 Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 19 12:43:23 GMT+00
45、:00 2006, Uncontrolled Copy, (c) BSI 6 Dimensions in millimetres Key 1 location pins 2 specimen 3 welding electrodes 4 insulating materials Figure 4 Example of cross-tension test specimen in a welding jig 5 Test equipment and testing procedure 5.1 General Testing can be accomplished with an appropri
46、ate impact-testing machine. The minimum number of specimens tested shall be five. NOTE 1 The pendulum-type machine is generally used for a sheet thickness range of 0,5 mm to 3 mm, and the drop-weight machine for a sheet thickness range of 1 mm to 4 mm. NOTE 2 If needed, the load can be obtained usin
47、g hydraulic test equipment. 5.2 Modified pendulum machine The test specimen is fixed between the clamping device and the crosshead using the equipment shown in Figures 5 and 6. A U-shaped hammer shall be used for testing and is attached to the pendulum. At the bottom of the pendulum swing, the hamme
48、r strikes the crosshead. The energy to failure is indicated by the extent of the upward swing of the pendulum. The velocity of the pendulum at the time of impact is 5,5 m/s. To measure impact force, strain gauges attached to the clamping device or an appropriate load cell shall be used (see Figures
49、5 and 6). The absorbed energy is determined as a function of time (see Annex A). EN ISO 14323:2006 Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 19 12:43:23 GMT+00:00 2006, Uncontrolled Copy, (c) BSI 7 Key 1 hammer 6 clamping device 2 strain gauge/load cell 7 test specimen 3 lamp 8 cross head 4 photodiode 9 power supply 5 strain gauge 10 amplifier Figure 5 Pendulum machine with U-shaped hammer, equipped for testing spot-welded impact shear s