SIST EN ISO/ASTM 52942:2020

SLOVENSKI STANDARD
SIST EN ISO/ASTM 52942:2020
01-november-2020
Aditivna proizvodnja - Kvalifikacijska načela - Usposobljenost upravljavcev strojev
in opreme za lasersko fuzijo plasti kovinskih prašnih delcev za uporabo v
aeronavtiki (ISO/ASTM 52942:2020)
Additive manufacturing - Qualification principles - Qualifying machine operators of laser
metal powder bed fusion machines and equipment used in aerospace applications
(ISO/ASTM 52942:2020)
Additive Fertigung - Grundsätze der Qualifizierung - Standard Richtlinie zur Prüfung von
Anlagenbedienern für pulverbettbasierte Laserstrahlanlagen zur additiven Fertigung für
Luft- und Raumfahrtanwendungen (ISO/ASTM 52942:2020)
Fabrication additive - Principes de qualification - Qualification des opérateurs machine
des machines à fusion laser sur lit de poudre et équipements utilisés dans les
applications aérospatiales (ISO/ASTM 52942:2020)
Ta slovenski standard je istoveten z: EN ISO/ASTM 52942:2020
ICS:
03.100.30 Vodenje ljudi Management of human
resources
25.030 3D-tiskanje Additive manufacturing
49.020 Letala in vesoljska vozila na Aircraft and space vehicles in
splošno general
SIST EN ISO/ASTM 52942:2020 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN ISO/ASTM 52942:2020

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SIST EN ISO/ASTM 52942:2020


EN ISO/ASTM 52942
EUROPEAN STANDARD

NORME EUROPÉENNE

September 2020
EUROPÄISCHE NORM
ICS 03.100.30; 25.030
English Version

Additive manufacturing - Qualification principles -
Qualifying machine operators of laser metal powder bed
fusion machines and equipment used in aerospace
applications (ISO/ASTM 52942:2020)
Fabrication additive - Principes de qualification - Additive Fertigung - Grundsätze der Qualifizierung -
Qualification des opérateurs machine des machines à Standard Richtlinie zur Prüfung von Anlagenbedienern
fusion laser sur lit de poudre et équipements utilisés für pulverbettbasierte Laserstrahlanlagen zur
dans les applications aérospatiales (ISO/ASTM additiven Fertigung für Luft- und
52942:2020) Raumfahrtanwendungen (ISO/ASTM 52942:2020)
This European Standard was approved by CEN on 24 August 2020.

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 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 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, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and
United Kingdom.





EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2020 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO/ASTM 52942:2020 E
worldwide for CEN national Members.

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SIST EN ISO/ASTM 52942:2020
EN ISO/ASTM 52942:2020 (E)
Contents Page
European foreword . 3

2

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SIST EN ISO/ASTM 52942:2020
EN ISO/ASTM 52942:2020 (E)
European foreword
This document (EN ISO/ASTM 52942:2020) has been prepared by Technical Committee ISO/TC 261
"Additive manufacturing" in collaboration with Technical Committee CEN/TC 438 “Additive
Manufacturing” the secretariat of which is held by AFNOR.
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 March 2021, and conflicting national standards shall
be withdrawn at the latest by March 2021.
Attention 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.
According to the CEN-CENELEC Internal Regulations, the national standards organizations of the
following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria,
Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland,
Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of
North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the
United Kingdom.
Endorsement notice
The text of ISO/ASTM 52942:2020 has been approved by CEN as EN ISO/ASTM 52942:2020 without
any modification.

3

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SIST EN ISO/ASTM 52942:2020

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SIST EN ISO/ASTM 52942:2020
INTERNATIONAL ISO/ASTM
STANDARD 52942
First edition
2020-08
Additive manufacturing —
Qualification principles — Qualifying
machine operators of laser metal
powder bed fusion machines and
equipment used in aerospace
applications
Fabrication additive — Principes de qualification — Qualification des
opérateurs machine des machines à fusion laser sur lit de poudre et
équipements utilisés dans les applications aérospatiales
Reference number
ISO/ASTM 52942:2020(E)
©
ISO/ASTM International 2020

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SIST EN ISO/ASTM 52942:2020
ISO/ASTM 52942:2020(E)

COPYRIGHT PROTECTED DOCUMENT
© ISO/ASTM International 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 on
the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below
or ISO’s member body in the country of the requester. In the United States, such requests should be sent to ASTM International.
ISO copyright office ASTM International
CP 401 • Ch. de Blandonnet 8 100 Barr Harbor Drive, PO Box C700
CH-1214 Vernier, Geneva West Conshohocken, PA 19428-2959, USA
Phone: +41 22 749 01 11 Phone: +610 832 9634
Fax: +610 832 9635
Email: copyright@iso.org Email: khooper@astm.org
Website: www.iso.org Website: www.astm.org
Published in Switzerland
ii © ISO/ASTM International 2020 – All rights reserved

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SIST EN ISO/ASTM 52942:2020
ISO/ASTM 52942:2020(E)

Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Qualification . 2
4.1 General . 2
4.2 Essential variables and-range of qualification . 2
4.2.1 General. 2
4.2.2 Powder material group . 2
4.2.3 Machine model . 3
4.3 Evidence of visual acuity . 3
4.4 Theoretical test . 3
4.5 Practical test . 3
5 Qualification test certificate . 4
6 Validity of testing . 4
6.1 General . 4
6.2 Period of validity . 4
6.3 Requalification test. 4
6.4 Supplementary test . 5
Annex A (normative) Content of the theoretical assessment . 6
Annex B (normative) Content of the practical assessment . 7
Annex C (informative) Example of qualification test certificate for operators of laser metal
powder bed fusion machines . 9
Annex D (informative) Example of an additive manufacturing procedure specification (APS) .11
Bibliography .13
© ISO/ASTM International 2020 – All rights reserved iii

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SIST EN ISO/ASTM 52942:2020
ISO/ASTM 52942:2020(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 ISO/TC 261, Additive manufacturing, in cooperation with ASTM F 42,
Additive Manufacturing Technologies, on the basis of a partnership agreement between ISO and ASTM
International with the aim to create a common set of ISO/ASTM standards on additive manufacturing
and in collaboration with the European Committee for Standardization (CEN) Technical Committee
CEN/TC 438, Additive manufacturing, in accordance with the agreement on technical cooperation
between ISO and CEN (Vienna Agreement).
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.
iv © ISO/ASTM International 2020 – All rights reserved

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SIST EN ISO/ASTM 52942:2020
INTERNATIONAL STANDARD ISO/ASTM 52942:2020(E)
Additive manufacturing — Qualification principles —
Qualifying machine operators of laser metal powder
bed fusion machines and equipment used in aerospace
applications
1 Scope
This document specifies requirements for the qualification of operators of laser metal powder bed
fusion machines and equipment for additive manufacturing in aerospace applications.
This document is applicable if the operator qualification testing is required by contract or by application
standards in the field of aerospace.
2 Normative references
The 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 (including any amendments) applies.
ISO/ASTM 52900, Additive manufacturing — General principles — Part 1: Fundamentals and vocabulary
ISO/ASTM 52921, Standard terminology for additive manufacturing — Coordinate systems and test
methodologies
ISO 18490, Non-destructive testing — Evaluation of vision acuity of NDT personnel
EN 4179, Aerospace series — Qualification and approval of personnel for non-destructive testing
NAS 410, NAS CERTIFICATION & QUALIFICATION OF NONDESTRUCTIVE TEST PERSONNEL
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO/ASTM 52900, ISO/ASTM 52921
and the following apply.
ISO and IEC maintain terminological databases for 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/
3.1
...

SLOVENSKI STANDARD
oSIST prEN ISO/ASTM 52942:2019
01-september-2019
Aditivna proizvodnja - Kvalifikacijska načela - Usposobljenost upravljavcev strojev
in opreme za fuzijo plasti kovinskih prašnih delcev za uporabo v aeronavtiki
(ISO/ASTM/DIS 52942:2019)
Additive manufacturing - Qualification principles - Qualifying machine operators of metal
powder bed fusion machines and equipment used in aerospace applications
(ISO/ASTM/DIS 52942:2019)
Additive Fertigung - Grundsätze der Qualifizierung - Standard Richtlinie zur Prüfung von
Anlagenbedienern für pulverbettbasierte Laserstrahlanlagen zur additiven Fertigung für
Luft- und Raumfahrtanwendungen (ISO/ASTM/DIS 52942:2019)
Fabrication additive - Principes de qualification - Lignes directrices normalisées pour la
qualification des opérateurs des machines à fusion sur lit de poudre et équipements
utilisés dans les applications aérospatiales (ISO/ASTM/DIS 52942:2019)
Ta slovenski standard je istoveten z: prEN ISO/ASTM 52942
ICS:
03.100.30 Vodenje ljudi Management of human
resources
25.030 3D-tiskanje Additive manufacturing
49.020 Letala in vesoljska vozila na Aircraft and space vehicles in
splošno general
oSIST prEN ISO/ASTM 52942:2019 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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oSIST prEN ISO/ASTM 52942:2019

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oSIST prEN ISO/ASTM 52942:2019
DRAFT INTERNATIONAL STANDARD
ISO/ASTM DIS 52942
ISO/TC 261 Secretariat: DIN
Voting begins on: Voting terminates on:
2019-05-10 2019-08-02
Additive manufacturing — Qualification principles —
Qualifying machine operators of metal powder bed fusion
machines and equipment used in aerospace applications
ICS: 03.100.30; 25.030
Member bodies are requested to consult relevant national interests in ISO/TC
44/SC 14 before casting their ballot to the e-Balloting application.
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/ASTM DIS 52942:2019(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 2019

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oSIST prEN ISO/ASTM 52942:2019
ISO/ASTM DIS 52942:2019(E)

COPYRIGHT PROTECTED DOCUMENT
© ISO/ASTM International 2019
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 on
the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below
or ISO’s member body in the country of the requester. In the United States, such requests should be sent to ASTM International.
ISO copyright office ASTM International
CP 401 • Ch. de Blandonnet 8 100 Barr Harbor Drive, PO Box C700
CH-1214 Vernier, Geneva West Conshohocken, PA 19428-2959, USA
Phone: +41 22 749 01 11 Phone: +610 832 9634
Fax: +41 22 749 09 47 Fax: +610 832 9635
Email: copyright@iso.org Email: khooper@astm.org
Website: www.iso.org Website: www.astm.org
Published in Switzerland
ii © ISO/ASTM International 2019 – All rights reserved

---------------------- Page: 4 ----------------------
oSIST prEN ISO/ASTM 52942:2019
ISO/ASTM DIS 52942:2019(E)

Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Qualification . 2
4.1 General . 2
4.2 Essential variables and the range of qualification . 2
4.2.1 General. 2
4.2.2 Powder material group . 2
4.2.3 Machine model . 3
4.3 Evidence of vision acuity . 3
4.4 Theoretical test . 3
4.5 Practical test . 3
5 Qualification test certificate . 4
6 Validity of testing . 4
6.1 General . 4
6.2 Period of validity . 4
6.3 Re-qualification test . . 4
6.4 Supplementary test . 5
Annex A (normative) Content of the theoretical assessment . 6
Annex B (normative) Content of the practical assessment . 7
Annex C (informative) Example of qualification test certificate foroperators of metal
powder bed fusion machines . 9
Annex D (informative) Example of an additive manufacturing procedure specification (APS) .11
Bibliography .13
© ISO/ASTM International 2019 – All rights reserved iii

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oSIST prEN ISO/ASTM 52942:2019
ISO/ASTM DIS 52942:2019(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 261, Additive Manufacturing.
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.
iv © ISO/ASTM International 2019 – All rights reserved

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oSIST prEN ISO/ASTM 52942:2019
DRAFT INTERNATIONAL STANDARD ISO/ASTM DIS 52942:2019(E)
Additive manufacturing — Qualification principles —
Qualifying machine operators of metal powder bed fusion
machines and equipment used in aerospace applications
1 Scope
This document specifies requirements for the qualification of operators of metal powder bed fusion
machines and equipment for additive manufacturing.
This document is applicable if the operator qualification testing is required by contract or by application
standards.
2 Normative references
The 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 (including any amendments) applies.
ISO 14732:2013, Welding personnel — Qualification testing of welding operators and weld setters for
mechanized and automatic welding of metallic materials
ISO/ASTM 52900, Additive manufacturing — General principles — Part 1: Terminology
ISO/ASTM 52921, Standard terminology for additive manufacturing — Coordinate systems and test
methodologies
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO/ASTM 52900 and ISO/
ASTM 52921 and the following term apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— IEC Electropedia: available at http: //www .electropedia .org/
— ISO Online browsing platform: available at http: //www .iso .org/obp
3.1
examiner
person who has been appointed to verify compliance with the applicable standard
Note 1 to entry: In certain cases, an external independent examiner can be required.
[SOURCE: ISO 14732:2013, 3.12]
3.2
examining body
organization that has been appointed to verify compliance with the applicable standard
Note 1 to entry: In certain cases, an external independent examining body can be required.
[SOURCE: ISO 14732:2013, 3.13]
© ISO/ASTM International 2019 – All rights reserved 1

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oSIST prEN ISO/ASTM 52942:2019
ISO/ASTM DIS 52942:2019(E)

3.3
operator
person who operates metal powder bed fusion machines and equipment for additive manufacturing
Note 1 to entry: This definition is valid for this ISO/ASTM standard, only.
3.4
additive manufacturing procedure specification
APS
document that has been qualified and provides the required variables of the additive manufacturing
process to ensure repeatability during production
3.5
preliminary additive manufacturing procedure specification
pAPS
document containing the required variables of the additive manufacturing procedure which has to be
qualified
4 Qualification
4.1 General
The qualification test for operators shall follow an additive manufacturing procedure specification. An
example of an additive manufacturing procedure specification (APS) is given in Annex D.
Qualification of operators shall include the following aspects:
a) theoretical test;
b) practical test;
c) evidence of vision acuity.
4.2 Essential variables and the range of qualification
4.2.1 General
The qualification of operators of metal powder bed fusion machines for additive man
...