EN ISO/ASTM 52925:2022

Additive manufacturing of polymers - Feedstock materials - Qualification of materials for laser-based powder bed fusion of parts (ISO/ASTM 52925:2022)

This document provides guidance and recommendations for the qualification of polymeric materials intended for laser-based powder bed fusion of polymers (PBF-LB/P). The parameters and recommendations presented in this document relate mainly to the material polyamide 12 (PA12), but references are also made to polyamide 11 (PA11). The parameters and recommendations set forth herein cannot be applicable to other polymeric materials.

Additive Fertigung von Polymeren - Ausgangsmaterialien - Qualifizierung von Materialien für das laserbasierte Pulverbettschmelzen von Teilen (ISO/ASTM 52925:2022)

Dieses Dokument stellt einen Leitfaden und Empfehlungen für die Qualifizierung von Polymerwerkstoffen zur Verfügung, die für die laserbasierte Pulverbettfusion von Polymeren (PBF-LB/P) bestimmt sind. Die in diesem Dokument aufgeführten Parameter und Empfehlungen beziehen sich hauptsächlich auf den Werkstoff Polyamid 12 (PA12), es wird aber auch auf Polyamid 11 (PA11) Bezug genommen. Die hier dargelegten Parameter und Empfehlungen können nicht auf andere Polymerwerkstoffe angewendet werden.

Fabrication additive de polymères - Matières premières - Qualification des matériaux pour la fusion laser de pièces sur lit de poudre (ISO/ASTM 52925:2022)

Le présent document donne des conseils et des recommandations pour la qualification des matériaux polymères destinés à la fusion laser de polymères sur lit de poudre (PBF-LB/P). Les paramètres et recommandations présentés dans le présent document concernent principalement le polyamide 12 (PA12), mais des références sont également faites au polyamide 11 (PA11). Les paramètres et recommandations énoncés ici peuvent ne pas être applicables à d’autres matériaux polymères.

Aditivna proizvodnja polimerov - Surovine - Kvalifikacija materialov za lasersko spajanje prahu v postelji (ISO/ASTM 52925:2022)

Parametri in priporočila, predstavljeni v tem standardu, se v glavnem navezujejo na material poliamid 12 (PA12). Standard se izrecno sklicuje tudi na poliamid 11 (PA11). Obseg, v katerem je mogoče te parametre in priporočila prenesti na druge materiale, je treba preverjati za vsak posamezen primer.

General Information

• Status: Published
• Publication Date: 03-May-2022
• Withdrawal Date: 29-Nov-2022
• ICS: 25.030 - Additive manufacturing
• Technical Committee: CEN/TC 438 - Additive Manufacturing
• Drafting Committee: CEN/TC 438 - Additive Manufacturing
• Current Stage: 6060 - Definitive text made available (DAV) - Publishing
• Start Date: 04-May-2022
• Completion Date: 04-May-2022
• Ref Project: SIST EN ISO/ASTM 52925:2023 - Additive manufacturing of polymers - Feedstock materials - Qualification of materials for laser-based powder bed fusion of parts (ISO/ASTM 52925:2022)

Standards Content (Sample)

SLOVENSKI STANDARD
01-marec-2023
Aditivna proizvodnja polimerov - Surovine - Kvalifikacija materialov za lasersko
spajanje prahu v postelji (ISO/ASTM 52925:2022)
Additive manufacturing of polymers - Feedstock materials - Qualification of materials for
laser-based powder bed fusion of parts (ISO/ASTM 52925:2022)
Additive Fertigung von Polymeren - Qualifizierungsgrundsätze - Klassifizierung von
Teileigenschaften (ISO/ASTM 52925:2022)
Fabrication additive de polymères - Matières premières - Qualification des matériaux
pour la fusion laser de pièces sur lit de poudre (ISO/ASTM 52925:2022)
Ta slovenski standard je istoveten z: EN ISO/ASTM 52925:2022
ICS:
25.030 3D-tiskanje Additive manufacturing
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN ISO/ASTM 52925
EUROPEAN STANDARD
NORME EUROPÉENNE
May 2022
EUROPÄISCHE NORM
ICS 25.030
English Version
Additive manufacturing of polymers - Feedstock materials
- Qualification of materials for laser-based powder bed
fusion of parts (ISO/ASTM 52925:2022)
Fabrication additive de polymères - Matières Additive Fertigung von Polymeren
premières - Qualification des matériaux pour la fusion Qualifizierungsgrundsätze - Klassifizierung von
laser de pièces sur lit de poudre (ISO/ASTM Teileigenschaften (ISO/ASTM 52925:2022)
52925:2022)
This European Standard was approved by CEN on 5 April 2022.

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
© 2022 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO/ASTM 52925:2022 E
worldwide for CEN national Members.

Contents Page
European foreword . 3

European foreword
This document (EN ISO/ASTM 52925:2022) 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 November 2022, and conflicting national standards
shall be withdrawn at the latest by November 2022.
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.
Any feedback and questions on this document should be directed to the users’ national standards
body/national committee. A complete listing of these bodies can be found on the CEN website.
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 52925:2022 has been approved by CEN as EN ISO/ASTM 52925:2022 without
any modification.
INTERNATIONAL ISO/ASTM
STANDARD 52925
First edition
2022-04
Additive manufacturing of polymers —
Feedstock materials — Qualification of
materials for laser-based powder bed
fusion of parts
Fabrication additive de polymères — Matières premières —
Qualification des matériaux pour la fusion laser de pièces sur lit de
poudre
Reference number
ISO/ASTM 52925:2022(E)
© ISO/ASTM International 2022
ISO/ASTM 52925:2022(E)
© ISO/ASTM International 2022
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
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Website: www.iso.org Website: www.astm.org
Published in Switzerland
ii
© ISO/ASTM International 2022 – All rights reserved

ISO/ASTM 52925:2022(E)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Symbols and abbreviations .1
4.1 Symbols . 1
4.2 Abbreviations . 2
5 Sampling . 2
5.1 General . 2
5.2 Characterisation of virgin powder and powder blends . 2
5.3 Characterisation of used powder . 2
6 Factory test report . 3
6.1 General . 3
6.2 Particle size distribution . 3
6.3 Residual monomer content/extract content . 3
6.4 Supplementary data . 3
7 Factors influencing processability .4
7.1 General . 4
7.2 Spreadability of the powder . 4
7.3 Relative humidity of the powder (surface moisture) . 4
7.4 Particle size distribution . 5
8 Factors affecting part quality . 5
8.1 General . 5
8.2 Melting behaviour, melt flow and MVR. 6
8.2.1 General . 6
8.2.2 Laboratory methods . 6
8.2.3 Melt volume-flow rate (MVR) . 6
8.3 Melting temperature and recrystallisation temperature . 7
Annex A (informative) Hausner ratio, H . 9
R
Annex B (informative) Determination of the melt volume-flow rate (MVR) .12
Annex C (informative) Round robin MVR test .15
Bibliography .18
iii
© ISO/ASTM International 2022 – All rights reserved

ISO/ASTM 52925:2022(E)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
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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
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