SIST EN ISO/ASTM 52941:2021

SLOVENSKI STANDARD
SIST EN ISO/ASTM 52941:2021
01-januar-2021
Aditivna proizvodnja - Delovanje in zanesljivost sistema - Preskusi sprejemljivosti
za lasersko kovinsko fuzijo plasti kovinskih prašnih delcev za uporabo v
aeronavtiki(ISO/ASTM 52941:2020)
Additive manufacturing - System performance and reliability - Acceptance tests for laser
metal powder-bed fusion machines for metallic materials for aerospace application
(ISO/ASTM 52941:2020)
Additive Fertigung - Systemleistung und Betriebssicherheit - Standard Richtlinie zur
Abnahmeprüfung von pulverbettbasierten Laserstrahlmaschinen für metallische
Werkstoffe zur additiven Fertigung für Luft- und Raumfahrtanwendungen (ISO/ASTM
52941:2020)
Fabrication additive - Performance et fiabilité du système - Essais de réception pour
machines de fusion laser sur lit de poudre pour les matériaux métalliques pour
l’application aérospatiale (ISO/ASTM 52941:2020)
Ta slovenski standard je istoveten z: EN ISO/ASTM 52941:2020
ICS:
25.030 3D-tiskanje Additive manufacturing
49.025.01 Materiali za letalsko in Materials for aerospace
vesoljsko gradnjo na splošno construction in general
SIST EN ISO/ASTM 52941:2021 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 52941:2021

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SIST EN ISO/ASTM 52941:2021


EN ISO/ASTM 52941
EUROPEAN STANDARD

NORME EUROPÉENNE

November 2020
EUROPÄISCHE NORM
ICS 25.030
English Version

Additive manufacturing - System performance and
reliability - Acceptance tests for laser metal powder-bed
fusion machines for metallic materials for aerospace
application (ISO/ASTM 52941:2020)
Fabrication additive - Performance et fiabilité du Additive Fertigung - Systemleistung und
système - Essais de réception pour machines de fusion Betriebssicherheit - Abnahmeprüfung von
laser sur lit de poudre pour les matériaux métalliques pulverbettbasierten Laserstrahlanlagen für metallische
pour l'application aérospatiale (ISO/ASTM Werkstoffe für Luft- und Raumfahrtanwendungen
52941:2020) (ISO/ASTM 52941:2020)
This European Standard was approved by CEN on 21 November 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 52941:2020 E
worldwide for CEN national Members.

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SIST EN ISO/ASTM 52941:2021
EN ISO/ASTM 52941:2020 (E)
Contents Page
European foreword . 3

2

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SIST EN ISO/ASTM 52941:2021
EN ISO/ASTM 52941:2020 (E)
European foreword
This document (EN ISO/ASTM 52941:2020) 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 May 2021, and conflicting national standards shall be
withdrawn at the latest by May 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 52941:2020 has been approved by CEN as EN ISO/ASTM 52941:2020 without
any modification.


3

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SIST EN ISO/ASTM 52941:2021

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SIST EN ISO/ASTM 52941:2021
INTERNATIONAL ISO/ASTM
STANDARD 52941
First edition
2020-11
Additive manufacturing — System
performance and reliability —
Acceptance tests for laser metal
powder-bed fusion machines for
metallic materials for aerospace
application
Fabrication additive — Performance et fiabilité du système — Essais
de réception pour machines de fusion laser sur lit de poudre pour les
matériaux métalliques pour l’application aérospatiale
Reference number
ISO/ASTM 52941:2020(E)
©
ISO/ASTM International 2020

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SIST EN ISO/ASTM 52941:2021
ISO/ASTM 52941:2020(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 52941:2021
ISO/ASTM 52941:2020(E)

Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Equipment . 2
5 Environmental and operational conditions . 2
6 Qualification testing . 2
6.1 General . 2
6.2 Laser beam tests . 2
6.2.1 Testing the laser power for continuous wave lasers . 2
6.2.2 Testing the laser power stability for continuous wave lasers . 3
6.2.3 Testing of pulsed wave lasers . 3
6.2.4 Evaluation of the laser beam characteristics . 3
6.2.5 Evaluation of the minimum laser beam waist position in different working
plane locations . 3
6.2.6 Evaluation of the thermal stability of the minimum beam waist position . 3
6.2.7 Testing the laser beam position . 4
6.2.8 Trajectory accuracy . 4
6.2.9 Scanning speed . 4
6.2.10 Requirements for equipment with multiple laser beam sources . 4
6.3 Mechanical function test . 5
6.3.1 General. 5
6.3.2 Build platform positioning . 5
6.3.3 Feeding platform positioning . 5
6.3.4 Other powder feed processing mechanics. 5
6.3.5 Movement of the powder spreading device . 5
6.4 Heating system . 5
6.5 Atmosphere inside the working space . 5
6.6 Data recording . 6
6.7 Safety systems . 6
6.8 Optional tests . 6
6.8.1 Demonstrators and test artifacts . 6
6.8.2 Build area assessment . 6
6.8.3 Gas flow test by hot wire anemometer . 7
6.9 Requalification . 8
7 Test report . 8
Annex A (informative) Example of a test report .10
Annex B (informative) Geometric pattern for the trajectory accuracy test .11
Bibliography .12
© ISO/ASTM International 2020 – All rights reserved iii

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SIST EN ISO/ASTM 52941:2021
ISO/ASTM 52941:2020(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.
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 52941:2021
INTERNATIONAL STANDARD ISO/ASTM 52941:2020(E)
Additive manufacturing — System performance and
reliability — Acceptance tests for laser metal powder-
bed fusion machines for metallic materials for aerospace
application
1 Scope
This document specifies requirements and test methods for the qualification and re-qualification of
laser beam machines for metal powder bed fusion additive manufacturing for aerospace applications.
It can also be used to verify machine features during periodic inspections or following maintenance
and repair activities.
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 11146 (all parts), Lasers and laser-related equipment — Test methods for laser beam widths, divergence
angles and beam propagation ratios
ISO 11554, Optics and photonics — Lasers and laser-related equipment — Test methods for laser beam
power, energy and temporal characteristics
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
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO/ASTM 52900, ISO/ASTM
...

SLOVENSKI STANDARD
oSIST prEN ISO/ASTM 52941:2019
01-julij-2019
Aditivna proizvodnja - Delovanje in zanesljivost sistema - Standardna preskusna
metoda za prevzem strojev za fuzijo plasti kovinskih prašnih delcev za uporabo v
aeronavtiki (ISO/ASTM/DIS 52941:2019)
Additive manufacturing - System performance and reliability - Standard test method for
acceptance of powder-bed fusion machines for metallic materials for aerospace
application (ISO/ASTM/DIS 52941:2019)
Additive Fertigung - Systemleistung und Betriebssicherheit - Standard Richtlinie zur
Abnahmeprüfung von pulverbettbasierten Laserstrahlmaschinen für metallische
Werkstoffe zur additiven Fertigung für Luft- und Raumfahrtanwendungen
(ISO/ASTM/DIS 52941:2019)
Fabrication additive - Performance et fiabilité du système - Méthode d'essai normalisée
pour la réception des machines de fusion sur lit de poudre pour les matériaux
métalliques pour l’application aérospatiale (ISO/ASTM/DIS 52941:2019)
Ta slovenski standard je istoveten z: prEN ISO/ASTM 52941
ICS:
25.030 3D-tiskanje Additive manufacturing
oSIST prEN ISO/ASTM 52941:2019 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 52941:2019

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oSIST prEN ISO/ASTM 52941:2019
DRAFT INTERNATIONAL STANDARD
ISO/ASTM DIS 52941
ISO/TC 261 Secretariat: DIN
Voting begins on: Voting terminates on:
2019-05-10 2019-08-02
Additive manufacturing — System performance and
reliability — Standard test method for acceptance of
powder-bed fusion machines for metallic materials for
aerospace application
ICS: 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 52941:2019(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 52941:2019
ISO/ASTM DIS 52941:2019(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 52941:2019
ISO/ASTM DIS 52941:2019(E)

Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Equipment . 2
5 Environmental and operational conditions . 2
6 Qualification testing . 2
6.1 General . 2
6.2 Laser beam tests . 3
6.2.1 Testing the laser power for continuous wave lasers . 3
6.2.2 Testing the laser power stability for continuous wave lasers . 3
6.2.3 Testing of pulsed wave lasers . 3
6.2.4 Evaluation of the laser beam characteristics . 3
6.2.5 Evaluation of the minimum beam waist position in different working
plane locations . 3
6.2.6 Evaluation of the thermal stability of the minimum beam waist position . 4
6.2.7 Testing the laser beam position . 4
6.2.8 Trajectory accuracy . 4
6.2.9 Scanning speed . 4
6.2.10 Requirements for equipment with multiple laser beam sources . 4
6.3 Mechanical function test . 5
6.3.1 General. 5
6.3.2 Build platform positioning . 5
6.3.3 Feeding platform positioning . 5
6.3.4 Other powder feed processing mechanics. 5
6.3.5 Movement of the powder spreading device . 5
6.4 Heating system . 5
6.5 Atmosphere inside the working space . 6
6.6 Data recording . 6
6.7 Safety systems . 6
6.8 Optional test . 6
6.8.1 Demonstrators and test artifacts . 6
6.8.2 Build area survey . 6
6.8.3 Hot wire anemometer test. 7
6.9 Requalification . 7
7 Test report . 8
Annex A (informative) Test report . 9
Annex B (informative) Geometric pattern for the trajectory accuracy test .10
Bibliography .11
© ISO/ASTM International 2019 – All rights reserved iii

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oSIST prEN ISO/ASTM 52941:2019
ISO/ASTM DIS 52941:2019(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 52941:2019
DRAFT INTERNATIONAL STANDARD ISO/ASTM DIS 52941:2019(E)
Additive manufacturing — System performance and
reliability — Standard test method for acceptance of
powder-bed fusion machines for metallic materials for
aerospace application
1 Scope
This document specifies requirements and test methods for the qualification and re-qualification of
laser beam machines for metal powder bed fusion additive manufacturing for aerospace applications.
This standard can also be used to verify machine features during periodic inspections or following
maintenance and repair measures.
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 11146-1, Lasers and laser-related equipment — Test methods for laser beam widths, divergence angles
and beam propagation ratios — Part 1: Stigmatic and simple astigmatic beams
ISO 11146-2, Lasers and laser-related equipment — Test methods for laser beam widths, divergence angles
and beam propagation ratios — Part 2: General astigmatic beams
ISO/TR 11146-3, Lasers and laser-related equipment — Test methods for laser beam widths, divergence
angles and beam propagation ratios — Part 3: Intrinsic and geometrical laser beam classification,
propagation and details of test methods
ISO 11554, Optics and photonics — Lasers and laser-related equipment — Test methods for laser beam
power, energy and temporal characteristics
ISO/IEC 11518-9:1999, Information technology — High-Performance Parallel Interface — Part 9: Serial
specification (HIPPI-Serial)
ISO/ASTM 52900, Additive manufacturing — General principles — Part 1: Terminology
ISO/ASTM/DIS 52902:2018, Additive manufacturing — Test artefacts — Standard guideline for geometric
capability assessment of additive manufacturing systems
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:
— ISO Online browsing platform: available at http: //www .iso .org/obp
— IEC Electropedia: available at http: //www .electropedia .org/
© ISO/ASTM International 2019 – All rights reserved 1

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oSIST prEN ISO/ASTM 52941:2019
ISO/ASTM DIS 52941:2019(E)

3.1
scanning speed
relative linear speed of the laser beam movement in the plane of the build platform (working plane)
3.2
warm-up time
time from switching on the machine until the b
...