1、BSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06Welding Arc-welded joints in aluminium and its alloys Quality levels for imperfectionsBS EN ISO 10042:2018National forewordThis British Standard is the UK implementation of EN ISO 10042:2018. It is identical to ISO 1004
2、2:2018. It supersedes BS EN ISO 10042:2005, which is withdrawn.The UK participation in its preparation was entrusted to Technical Committee WEE/36, Qualification of welding personnel and welding procedures.A list of organizations represented on this committee can be obtained on request to its secret
3、ary.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. The British Standards Institution 2018 Published by BSI Standards Limited 2018ISBN 978 0 580 94837 4ICS 25.160.40Compliance with a British Standard cannot c
4、onfer immunity from legal obligations.This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 July 2018.Amendments/corrigenda issued since publicationDate Text affectedBRITISH STANDARDBS EN ISO 10042:2018EUROPEAN STANDARDNORME EUROPENNEEUROPISCHE
5、NORMEN ISO 10042July 2018ICS 25.160.40 Supersedes EN ISO 10042:2005, EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGCEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2018 CEN Ref. No. EN ISO 10042:2018: EAll rights of exploitation in
6、any form and by any means reserved worldwide for CEN national MembersWelding Arc-welded joints in aluminium and its alloys Quality levels for imperfections (ISO 10042:2018)Soudage Assemblages en aluminium et alliages daluminium souds larc Niveaux de qualit par rapport aux dfauts (ISO 10042:2018)Schw
7、eien Lichtbogenschweiverbindungen an Aluminium und seinen Legierungen Bewertungsgruppen von Unregelmigkeiten (ISO 10042:2018)This European Standard was approved by CEN on 10 June 2018.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving
8、this European Standard the status 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
9、 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 to the CEN-CENELEC Management Centre has the same status as the official versions.CEN members are the national standards bodies of Aust
10、ria, 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, Romania, Serbia, Slovakia, Slovenia, Spai
11、n, Sweden, Switzerland, Turkey and United Kingdom.English VersionEN ISO 10042:2018 (E)European forewordThis document (EN ISO 10042:2018) has been prepared by Technical Committee ISO/TC 44 “Welding and allied processes“ in collaboration with Technical Committee CEN/TC 121 “Welding and allied processe
12、s” 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 January 2019, and conflicting national standards shall be withdrawn at the latest by January 2019.Attenti
13、on is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN shall not be held responsible for identifying any or all such patent rights.This document supersedes EN ISO 10042:2005.According to the CEN-CENELEC Internal Regulations, the national st
14、andards 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,
15、 Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom.Endorsement noticeThe text of ISO 10042:2018 has been approved by CEN as EN ISO 10042:2018 without any modification.iiBS EN ISO 10042:2018ISO 1004
16、2:2018Foreword ivIntroduction vi1 Scope . 12 Normative references 13 Terms and definitions . 14 Symbols 25 Assessment of imperfections . 3Annex A (informative) Examples of the determination of the percent porosity 16Annex B (informative) Additional information and guidelines for users of this docume
17、nt 18Bibliography .19 ISO 2018 All rights reserved iiiContents PageBS EN ISO 10042:2018ISO 10042:2018ForewordISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally
18、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, in liaison with ISO, also take part in the wo
19、rk. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. 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 di
20、fferent approval criteria needed for the different types of ISO documents should be noted. This document was drafted in accordance with 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
21、may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of any 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/pat
22、ents).Any trade name used in this document is information given for the convenience of users and does not constitute an endorsement. For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and expressions related to conformity assessment, as well as information abo
23、ut ISOs adherence to the World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see www.iso.org/iso/foreword.html.This document was prepared by Technical Committee ISO/TC 44, Welding and allied processes, Subcommittee SC 10, Quality management in the field of welding.This
24、 third edition cancels and replaces the second edition (ISO 10042:2005), of which it constitutes a minor revision. The changes compared to the previous edition are as follows: reference numbers from ISO 4063 have been deleted in the Scope; in Table 1, 1.3, reference number ISO 6520-1 has been change
25、d from “2012 - uniformly distributed porosity ” to “2018 - surface porosity”; in Table 1, 1.8, a new figure has been inserted and changes to quality levels B and C have been made; in Table 1, 1.9, changes to quality level C have been made; in Table 1, 1.14, a drawing has been added; in Table 1, 1.15
26、, changes to quality level D have been made; in Table 1, 1.18, a drawing has been deleted and a new one inserted, and reference to 6520-1-5013 “shrinkage groove” has been deleted; in Table 1, 1.19 to 1.21, imperfections have been added with values from ISO 5817: poor restart, stray arc, spatter; in
27、Table 1, 2.2, changes to quality levels B and C have been made; in Table 1, 2.10, changes to quality levels C and D have been made; in Table 1, 2.11, a drawing has been deleted and new ones introduced, requirements for “Butt joint (full penetration)” have been updated; in Table 1, 2.12, a new drawin
28、g has been introduced with new requirements, and changes to quality levels C and D have been made;iv ISO 2018 All rights reservedBS EN ISO 10042:2018ISO 10042:2018 editorial changes have been made.Requests for official interpretation of any aspect of this document should be directed to the secretari
29、at of ISO/TC 44/SC 10 via your national standards body. A complete listing of these bodies can be found at www.iso.org. ISO 2018 All rights reserved vBS EN ISO 10042:2018ISO 10042:2018IntroductionThis document is intended to be used as a reference in drafting application codes and/or other applicati
30、on standards. It contains a simplified selection of arc welding imperfections based on the designations given in ISO 6520-1.Some imperfections described in ISO 6520-1 have been used directly while others have been grouped together. The basic numerical referencing system from ISO 6520-1 has been used
31、.The purpose of this document is to define the dimensions of typical imperfections which can be expected in normal fabrication. It can be used within a quality system for the production of welded joints. It provides three sets of dimensional values from which a selection can be made for a particular
32、 application. The quality level necessary in each case needs to be defined by the application standard or the responsible designer, in conjunction with the manufacturer, user and/or other parties concerned. The quality level are prescribed before the start of production, preferably at the enquiry or
33、 order stage. For special purposes, additional details can be necessary.The quality levels given in this document provide basic reference data and are not specifically related to any particular application. They refer to the types of welded joint in fabrication and not to the complete product or com
34、ponent itself. It is possible, therefore, that different quality levels are applied to individual welded joints in the same product or component.It is normally be expected that, for a particular welded joint, the dimensional limits for imperfections can all be covered by specifying one quality level
35、. In some cases, it can be necessary to specify different quality levels for different imperfections in the same welded joint.The choice of quality level for any application takes account of design considerations, subsequent processing (e.g. surfacing), mode of stressing (e.g. static, dynamic), serv
36、ice conditions (e.g. temperature, environment) and consequences of failure. Economic factors are also important and include not only the cost of welding but also of inspection, test and repair.Although this document includes types of imperfection relevant to the arc welding processes given in Clause
37、 1, only those which are applicable to the process and application in question are considered.Imperfections are quoted in terms of their actual dimensions, and their detection and evaluation can require the use of one or more methods of non-destructive testing. The detection and sizing of imperfecti
38、ons is dependent on the testing methods and the extent of testing specified in the application standard or contract.This document does not address the methods used for the detection of imperfections. However, ISO 17635 contains a correlation between the quality level and acceptance level for differe
39、nt NDT (non-destructive testing) methods.This document is directly applicable to visual testing of welds and does not include details of recommended methods of detection or sizing by other non-destructive means. There are difficulties in using these limits to establish appropriate criteria applicabl
40、e to NDT methods such as ultrasonic (UT), radiographic (RT) and penetrant testing (PT), for which additional requirements for testing can be necessary.The values given for imperfections are for welds produced using normal welding practice. Requirements for smaller (more stringent) values as stated i
41、n quality level B can include additional manufacturing processes, e.g. grinding, TIG dressing.vi ISO 2018 All rights reservedBS EN ISO 10042:2018Welding Arc-welded joints in aluminium and its alloys Quality levels for imperfections1 ScopeThis document specifies quality levels for imperfections in ar
42、c-welded joints in aluminium and its alloys. It applies to material thicknesses above 0,5 mm.Three quality levels are given in order to permit application to a wide range of welded constructions. They are designated by symbols B, C and D. Quality level B corresponds to the highest requirement on the
43、 finished weld. The quality levels refer to production quality and not to the fitness for purpose (see 3.2) of the product manufactured.This document is applicable to all types of welds (e.g. butt welds, fillet welds and branch connections), to manual, mechanized and automated welding, and to all we
44、lding positions.It is applicable to the following welding processes: metal inert gas welding (MIG welding); gas metal arc welding /USA; tungsten inert gas welding (TIG welding); gas tungsten arc welding /USA; plasma arc welding.It is not applicable to metallurgical aspects (e.g. grain size, hardness
45、).2 Normative referencesThe following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (includin
46、g any amendments) applies.ISO 6520-1, Welding and allied processes Classification of geometric imperfections in metallic materials Part 1: Fusion welding3 Terms and definitionsFor the purposes of this document, the following terms and definitions apply.ISO and IEC maintain terminological databases f
47、or use in standardization at the following addresses: ISO Online browsing platform: available at https:/www.iso.org/obp IEC Electropedia: available at http:/www.electropedia.org/3.1quality leveldescription of the quality of a weld on the basis of type, size and amount of selected imperfections3.2fit
48、ness for purposeability of a product, process or service to serve a defined purpose under specific conditionsINTERNATIONAL STANDARD ISO 10042:2018 ISO 2018 All rights reserved 1BS EN ISO 10042:2018ISO 10042:20183.3short imperfectionimperfection whose total length is not greater than 25 mm in any 100
49、 mm of their length3.4short imperfectionimperfection whose total length is not greater than 25 % of the length of the weld3.5systematic imperfectionimperfection that is repeatedly distributed in the weld over the weld length to be examined, the size of each individual imperfection being within the specified limits3.6cross-sectional areaarea to be considered after fracture or sectioning3.7projected areaarea where imperfections distributed along the volume of the weld under consideration are imaged two-dimensional
