kSIST FprEN ISO 13919-2:2020

Welding - Electron and laser-beam welded joints - Requirements and recommendations on quality levels for imperfections - Part 2: Aluminium, magnesium and their alloys and pure copper (ISO/FDIS 13919-2:2020)

Schweißen - Elektronen- und Laserstrahl-Schweißverbindungen - Anforderungen und Empfehlungen für Bewertungsgruppen für Unregelmäßigkeiten - Teil 2: Aluminium, Magnesium und ihre Legierungen und reines Kupfer (ISO/FDIS 13919-2:2020)

Dieses Dokument gibt eine Anleitung für die Bewertung von Unregelmäßigkeiten in elektronen- und laserstrahlgeschweißten Verbindungen aus Aluminium, Magnesium und deren Legierungen und reinem Kupfer. Die drei Bewertungsgruppen sind so festgelegt, dass sie eine breite Anwendung in der schweißtechnischen Fertigung erlauben. Die Bewertungsgruppen beziehen sich auf die Fertigungsqualität und nicht auf die Gebrauchstauglichkeit der gefertigten Erzeugnisse.
Dieses Dokument gilt für das Elektronen- und Laserstrahlschweißen von:
—   Aluminium und dessen Legierungen;
—   Magnesium und dessen Legierungen;
—   reinem Kupfer (z. B. Cu-ETP1 CW003A, Cu-ETP CW004A, Cu-FRHC CW005A, Cu-FRTP CW006A, Cu-OF1 CW007A, Cu-OF CW008A, Cu-OFE CW009A, Cu-PHC CW020A, Cu-HCP CW021A, Cu-PHCE CW022A, Cu DLP CW023A, Cu-DHP CW024A);
—   allen Arten von Nähten, geschweißt mit oder ohne Zusatzdraht;
—   Werkstoffdicken gleich oder größer 0,5 mm für das Elektronen- und Laserstrahlschweißen.
Wenn im geschweißten Erzeugnis entscheidende Abweichungen hinsichtlich der Nahtgeometrien und der in diesem Dokument beschriebenen Maße bestehen, ist der Umfang abzuschätzen, in dem die Bedingungen dieses Dokuments angewendet werden können.
ANMERKUNG   Bei Rundschweißnähten kann eine niedrigere Bewertungsgruppe für die Auslaufzone festgelegt werden.
Metallurgische Aspekte, z. B. Korngröße, Härte, Wasserstoffkrankheit (reines Kupfer) sind in diesem Dokument nicht berücksichtigt.
Dieses Dokument kann direkt für die Sichtprüfung von Schweißungen benutzt werden. Sie enthält keine Einzelheiten über die zu empfehlenden Verfahren zum Nachweis oder zur zerstörungsfreien Prüfung zur Größenbestimmung. Es gibt Schwierigkeiten in der Anwendung dieser Grenzen, um entsprechende Kriterien, die für zerstörungsfreie Prüfverfahren wie Ultraschall-, Durchstrahlungs- und Eindringprüfung anwendbar sind, aufzustellen. Deshalb können ergänzende Anforderungen für Untersuchungen, Über¬wachung und Prüfung erforderlich sein.

Soudage - Assemblages soudés par faisceau d'électrons et par faisceau laser - Exigences et recommandations sur les niveaux de qualité des défauts - Partie 2: Aluminium, magnésium et leurs alliages et cuivre pur (ISO/FDIS 13919-2:2020)

Varjenje - Zvarni spoji, zvarjeni z elektronskim snopom in/ali laserskim žarkom - Zahteve in priporočila za stopnje sprejemljivosti nepravilnosti - 2. del: Aluminij, magnezij in njune zlitine ter čisti baker (ISO/FDIS 13919-2:2020)

Standards Content (sample)

SLOVENSKI STANDARD
oSIST prEN ISO 13919-2:2020
01-junij-2020

Varjenje - Zvarni spoji, zvarjeni z elektronskim snopom in/ali laserskim žarkom -

Zahteve in priporočila za stopnje sprejemljivosti nepravilnosti - 2. del: Aluminij,

magnezij in njune zlitine ter čisti baker (ISO/DIS 13919-2:2020)

Welding - Electron and laser beam welded joints - Requirements and recommendations

on quality levels for imperfections - Part 2: Aluminium, magnesium and their alloys and

pure copper (ISO/DIS 13919-2:2020)
Schweißen - Elektronen- und Laserstrahl-Schweißverbindungen - Leitfaden für
Bewertungsgruppen für Unregelmäßigkeiten - Teil 2: Aluminium und seine
schweißgeeigneten Legierungen (ISO/DIS 13919-2:2020)
Soudage - Assemblages soudés par faisceau d'électrons et par faisceau laser -
Exigences et recommandations sur les niveaux de qualité des défauts - Partie 2:

Aluminium, magnésium et ses alliages soudages et acheteurs (ISO/DIS 13919-2:2020)

Ta slovenski standard je istoveten z: prEN ISO 13919-2
ICS:
25.160.40 Varjeni spoji in vari Welded joints and welds
77.120.01 Neželezne kovine na splošno Non-ferrous metals in
general
oSIST prEN ISO 13919-2:2020 en,fr,de

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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oSIST prEN ISO 13919-2:2020
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oSIST prEN ISO 13919-2:2020
DRAFT INTERNATIONAL STANDARD
ISO/DIS 13919-2
ISO/TC 44/SC 10 Secretariat: DIN
Voting begins on: Voting terminates on:
2020-04-16 2020-07-09
Electron and laser-beam welded joints — Requirements
and recommendations on quality levels for
imperfections —
Part 2:
Aluminium, magnesium and their alloys and pure copper

Assemblages soudés par faisceau d'électrons et par faisceau laser — Exigences et recommandations sur les

niveaux de qualité des défauts —
Partie 2: Aluminium, magnésium et ses alliages soudages et acheteurs
ICS: 25.160.40
THIS DOCUMENT IS A DRAFT CIRCULATED
This document is circulated as received from the committee secretariat.
FOR COMMENT AND APPROVAL. IT IS
THEREFORE SUBJECT TO CHANGE AND MAY
NOT BE REFERRED TO AS AN INTERNATIONAL
STANDARD UNTIL PUBLISHED AS SUCH.
IN ADDITION TO THEIR EVALUATION AS
ISO/CEN PARALLEL PROCESSING
BEING ACCEPTABLE FOR INDUSTRIAL,
TECHNOLOGICAL, COMMERCIAL AND
USER PURPOSES, DRAFT INTERNATIONAL
STANDARDS MAY ON OCCASION HAVE TO
BE CONSIDERED IN THE LIGHT OF THEIR
POTENTIAL TO BECOME STANDARDS TO
WHICH REFERENCE MAY BE MADE IN
Reference number
NATIONAL REGULATIONS.
ISO/DIS 13919-2:2020(E)
RECIPIENTS OF THIS DRAFT ARE INVITED
TO SUBMIT, WITH THEIR COMMENTS,
NOTIFICATION OF ANY RELEVANT PATENT
RIGHTS OF WHICH THEY ARE AWARE AND TO
PROVIDE SUPPORTING DOCUMENTATION. ISO 2020
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oSIST prEN ISO 13919-2:2020
ISO/DIS 13919-2:2020(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2020

All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may

be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting

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Published in Switzerland
ii © ISO 2020 – All rights reserved
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oSIST prEN ISO 13919-2:2020
ISO/DIS 13919-2:2020(E)
Contents Page

Foreword ........................................................................................................................................................................................................................................iv

Introduction ..................................................................................................................................................................................................................................v

1 Scope ................................................................................................................................................................................................................................. 1

2 Normative references ...................................................................................................................................................................................... 1

3 Terms and definitions ..................................................................................................................................................................................... 2

4 Symbols .......................................................................................................................................................................................................................... 2

5 E valuation of welds ............................................................................................................................................................................................ 2

Annex A (informative) Examples of determination of percentage (%) porosity .................................................12

Annex B (informative) Additional information for the use of this standard ...........................................................14

Bibliography .............................................................................................................................................................................................................................15

© ISO 2020 – All rights reserved iii
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oSIST prEN ISO 13919-2:2020
ISO/DIS 13919-2:2020(E)
Foreword

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 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 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 different 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 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/ patents).

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 about ISO's 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.
The main changes compared to the previous edition are as follows:
— the text has been editorial revised;
— the normative references have been updated;

— reference to ISO 6520-1 has been added to bring the document in line with ISO 5817.

A list of all parts in the ISO 13919 series can be found on the ISO website.

Any feedback or questions on this document should be directed to the user’s national standards body. A

complete listing of these bodies can be found at www .iso .org/ members .html.

Any feedback, question or request for official interpretation related to any aspect of this document

should be directed to the Secretariat of ISO/TC 44/SC 10 via your national standards body. A complete

listing of these bodies can be found at www .iso .org/ members .html. Official interpretations, where they

exist, are available from this page: https:// committee .iso .org/ sites/ tc44/ home/ interpretation .html.

iv © ISO 2020 – All rights reserved
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oSIST prEN ISO 13919-2:2020
ISO/DIS 13919-2:2020(E)
Introduction

This International Standard is intended to be used as a reference in drafting application codes and/

or other application standards. It contains a simplified selection of laser and electron beam welding

imperfections based on the designations given in ISO 6520-1.

Some imperfections described in ISO 6520-1 have been used directly and some have been grouped

together. The basic numerical referencing system from ISO 6520-1 has been used.

The purpose of this International Standard 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 application. The quality level necessary in each case is defined by the application standard

or the responsible designer in conjunction with the manufacturer, user and/or other parties concerned.

The quality level is expected to be prescribed prior to the start of production, preferably at the enquiry

or order stage. For special purposes, additional details can be prescribed.

The quality levels given in this International Standard 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 component itself. It is possible, therefore, that different quality levels

are applied to individual welded joints in the same product or component.

It would normally be expected that for a particular welded joint the dimensional limits for imperfections

can all be covered by specifying one quality level. 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 is expected to take account of design considerations,

subsequent processing (e.g. surfacing), mode of stressing (e.g. static, dynamic), service conditions (e.g.

temperature, environment) and consequences of failure. Economic factors are also important and are

intended to include not only the cost of welding, but also of inspection, test and repair.

Although this International Standard includes types of imperfection relevant to the beam welding

processes given in Clause 1, only those which are applicable to the process and application in question

need to be considered.

Imperfections are quoted in terms of their actual dimensions, and their detection and evaluation

may require the use of one or more methods of non-destructive testing. The detection and sizing of

imperfections are dependent on the inspection methods and the extent of testing specified in the

application standard or contract.

This International Standard does not address the methods used for the detection of imperfections.

This International Standard is directly applicable to visual examination 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 applicable to non-destructive testing

methods, such as ultrasonic, radiographic and penetrant testing, and they can need to be supplemented

by requirements for inspection, examination and testing.

The values given for imperfections are for welds produced using normal welding practice. More

stringent requirements as stated in quality level B can include additional manufacturing processes, e.g.

grinding, dressing.
© ISO 2020 – All rights reserved v
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oSIST prEN ISO 13919-2:2020
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oSIST prEN ISO 13919-2:2020
DRAFT INTERNATIONAL STANDARD ISO/DIS 13919-2:2020(E)
Electron and laser-beam welded joints — Requirements
and recommendations on quality levels for
imperfections —
Part 2:
Aluminium, magnesium and their alloys and pure copper
1 Scope

This document gives guidance on levels of imperfections in electron and laser beam welded joints in

aluminium and its alloys. Three levels are given in such a way as to permit application for a wide range

of welded fabrications. The levels refer to production quality and not to the fitness-for-purpose of the

product manufactured.
This document applies to electron and laser beam welding of:
— aluminium and its alloys;
— magnesium and its alloys;

— pure copper (e.g. Cu-ETP1 CW003A, Cu-ETP CW004A, Cu-FRHC CW005A, Cu-FRTP CW006A, Cu-

OF1 CW007A, Cu-OF CW008A, Cu-OFE CW009A, Cu-PHC CW020A, Cu-HCP CW021A, Cu-PHCE
CW022A, Cu-DLP CW023A, Cu-DHP CW024A);
— all types of welds welded with or without additional filler wire;

— materials equal to or above 0,5 mm thickness for electron and laser beam welding.

When significant deviations from the joint geometries and dimensions stated in this standard are

present in the welded product, it is necessary to evaluate to what extent the provisions of this standard

can apply.

NOTE 1 For circular welds, a lower quality level e.g., may be specified for the fade-out zone.

Metallurgical aspects, e.g. grain size, hardness, hydrogen embrittlement (pure copper) are not covered

by this standard.
2 Normative references

The 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 (including any amendments) applies.

ISO 6520-1, Welding and allie
...