EN ISO/ASTM 52924:2023

Additive manufacturing of polymers - Qualification principles - Classification of part properties (ISO/ASTM 52924:2023)

This document establishes the required or the achievable classes of part properties for additive manufactured polymer parts in order to get a common understanding on part quality. It is aimed at providers of manufacturing services for polymer parts who use additive manufacturing machines and at the customers for these services. Designers of parts as well as buyers and providers of manufacturing services can specify, in a traceable manner, the required or the achievable level of part properties with the aid of this document. The classification is based on mechanical, physical and geometrical properties. Further properties can be defined between buyer and provider of manufacturing.
This document is applicable to parts that have been manufactured from a thermoplastic polymer by means of thermal reaction fusion of material typically applied by a powder bed fusion (PBF) or material extrusion (MEX) processes. This document is also applicable to thermoplastic parts made by other processes, provided that due consideration is given to process-specific topics.
The classification of part properties applies to parts in as-built condition, that have been unpacked from the build space, with all support structures removed, but prior to any post-processing operations.
Specific industries (e.g. aerospace and medical) typically specify additional requirements.

Additive Fertigung von Polymeren - Qualifizierungsgrundsätze - Klassifizierung von Bauteileigenschaften (ISO/ASTM 52924:2023)

Dieses Dokument legt die erforderlichen oder die erreichbaren Bauteileigenschaftsklassen für additiv gefertigte Kunststoffbauteile fest, um ein allgemeines Verständnis über die Bauteilqualität zu ermöglichen. Es wendet sich an Anbieter von Fertigungsdienstleistungen für Kunststoffbauteile, die zur Herstellung additive Fertigungsanlagen einsetzen, und an die Auftraggeber dieser Dienstleistungen. Konstrukteure von Bauteilen sowie Einkäufer und Anbieter von Fertigungsdienstleistungen können das erforderliche beziehungsweise die erreichbaren Bauteileigenschaften mithilfe dieses Dokuments nachvollziehbar spezifizieren. Die Klassifizierung basiert auf mechanischen, physikalischen und geometrischen Eigenschaften. Zwischen dem Käufer und dem Fertigungsanbieter können weitere Eigenschaften festgelegt werden.
Dieses Dokument ist anwendbar für Bauteile, die mittels einer, typischerweise mithilfe von pulverbettbasierten Schmelzverfahren (PBF) oder Materialextrusionsverfahren (MEX) herbeigeführten, thermischen Reaktionsfusion eines Materials aus einem thermoplastischen Polymer gefertigt wurden. Dieses Dokument ist auch anwendbar für mittels anderer Prozesse gefertigte thermoplastische Bauteile, vorausgesetzt, dass die prozessspezifischen Themen berücksichtigt werden.
Die Klassifizierung der Bauteileigenschaften gilt für aus dem Bauraum entpackte Teile im Zustand „wie gebaut“, an denen sämtliche Stützkonstruktionen entfernt, jedoch noch keine Nachbearbeitungsarbeiten durchgeführt wurden.
Bestimmte Branchen (z. B. Luft- und Raumfahrt und Medizin) legen typischerweise zusätzliche Anforderungen fest.

Fabrication additive des polymères - Principes de qualification - Classification des propriétés de la pièce (ISO/ASTM 52924:2023)

Le présent document établit les classes de propriétés de la pièce requises ou pouvant être atteintes pour les pièces en polymère fabriquées de manière additive, afin de disposer d’une compréhension  commune sur la qualité des pièces. Il est destiné aux fournisseurs de services de fabrication de pièces en polymère qui utilisent des machines de fabrication additive et aux clients de ces services. Les concepteurs de pièces aussi bien que les acheteurs et les fournisseurs de services de fabrication peuvent spécifier, de manière traçable, le niveau des propriétés de la pièce requis ou pouvant être atteint à l’aide du présent document. La classification est basée sur des propriétés mécaniques, physiques et géométriques. D’autres propriétés peuvent être définies entre l’acheteur et le fournisseur de services de fabrication.
Le présent document s’applique aux pièces qui ont été fabriquées à partir d’un polymère thermoplastique par réaction thermique de fusion de matériau généralement réalisée par des procédés de fusion sur lit de poudre (PBF) ou d’extrusion de matériau (MEX).
La classification des propriétés de la pièce s’applique à des pièces en état de fabrication qui ont été déballées depuis l’espace de fabrication, avec l'ensemble des structures support ayant été retirées, mais avant toute opération de post-traitement.
Certaines industries (par exemple l'aérospatiale et le médical) spécifient généralement des exigences supplémentaires.

Aditivna proizvodnja polimernih izdelkov - Kvalifikacija - Razvrščanje lastnosti polimernih izdelkov (ISO/ASTM 52924:2023)

Ta standard je namenjen ponudnikom proizvodnih storitev za polimerne dele, ki uporabljajo stroje za aditivno proizvodnjo, in strankam za te storitve. Projektanti delov ter kupci in ponudniki proizvodnih storitev lahko s pomočjo tega standarda na sledljiv način določijo zahtevano ali dosegljivo raven kakovosti. Ta standard se uporablja za dele, ki so bili proizvedeni iz termoplastičnega polimera z laserskim sintranjem (LS) ali iztiskanjem materiala (MEX). V konkretnem primeru je treba preveriti njegovo uporabnost za druge postopke za polimere. Razredi kakovosti se uporabljajo za dele, ki niso bili naknadno obdelani po razpakiranju iz delovnega prostora in odstranitvi morebitnih podpornih struktur.

General Information

• Status: Published
• Publication Date: 15-Aug-2023
• Withdrawal Date: 01-May-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: 16-Aug-2023
• Completion Date: 16-Aug-2023
• Ref Project: SIST EN ISO/ASTM 52924:2023 - Additive manufacturing of polymers - Qualification principles - Classification of part properties (ISO/ASTM 52924:2023)

Standards Content (Sample)

SLOVENSKI STANDARD
01-november-2023
Aditivna proizvodnja polimernih izdelkov - Kvalifikacija - Razvrščanje lastnosti
polimernih izdelkov (ISO/ASTM 52924:2023)
Additive manufacturing of polymers - Qualification principles - Classification of part
properties (ISO/ASTM 52924:2023)
Additive Fertigung - Qualifizierungsgrundsätze - Güteklassen für additiv gefertigte
Kunststoffbauteile (ISO/ASTM 52924:2023)
Fabrication additive des polymères - Principes de qualification - Classification des
propriétés de la pièce (ISO/ASTM 52924:2023)
Ta slovenski standard je istoveten z: EN ISO/ASTM 52924:2023
ICS:
25.030 3D-tiskanje Additive manufacturing
83.080.01 Polimerni materiali na Plastics in general
splošno
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN ISO/ASTM 52924
EUROPEAN STANDARD
NORME EUROPÉENNE
August 2023
EUROPÄISCHE NORM
ICS 25.030
English Version
Additive manufacturing of polymers - Qualification
principles - Classification of part properties (ISO/ASTM
52924:2023)
Fabrication additive des polymères - Principes de Additive Fertigung - Qualifizierungsgrundsätze -
qualification - Classification des propriétés de la pièce Güteklassen für additiv gefertigte Kunststoffbauteile
(ISO/ASTM 52924:2023) (ISO/ASTM 52924:2023)
This European Standard was approved by CEN on 16 July 2023.

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, Türkiye 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
© 2023 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO/ASTM 52924:2023 E
worldwide for CEN national Members.

Contents Page
European foreword . 3

European foreword
This document (EN ISO/ASTM 52924:2023) 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 February 2024, and conflicting national standards
shall be withdrawn at the latest by February 2024.
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, Türkiye and the
United Kingdom.
Endorsement notice
The text of ISO/ASTM 52924:2023 has been approved by CEN as EN ISO/ASTM 52924:2023 without
any modification.
INTERNATIONAL ISO/ASTM
STANDARD 52924
First edition
2023-08
Additive manufacturing of
polymers — Qualification principles
— Classification of part properties
Fabrication additive des polymères — Principes de qualification —
Classification des propriétés de la pièce
Reference number
ISO/ASTM 52924:2023(E)
© ISO/ASTM International 2023
ISO/ASTM 52924:2023(E)
© ISO/ASTM International 2023
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
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Published in Switzerland
ii
© ISO/ASTM International 2023 – All rights reserved

ISO/ASTM 52924:2023(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3  Terms and definitions . 1
4 Symbols and abbreviations .2
4.1 Symbols . 2
4.2 Abbreviations . 2
5  Classification system . 3
5.1 Definition of the classes of part property . 3
5.2 Typical classification of important material classes and usage of the classification
system for part properties . 4
6  Test specimens for determining the characteristic values for the classification
system. 6
6.1 General . 6
6.2 Tensile properties . 6
6.3 Dimensional accuracy . 6
6.4 Density . 6
6.5 Labelling . 7
6.6 Orientation, grid arrangement, and distribution in the build space . 7
6.6.1 General . 7
6.6.2 Orientation and grid arrangement to be used . 7
6.6.3 Distribution in the build space . 7
6.7 Manufacturing . 11
7  Determination of characteristic values and classification in the classification
system.12
7.1 General .12
7.2 Mechanical properties . 12
7.2.1 General .12
7.2.2 Determination of characteristic values .12
7.2.3 Classification in the classification system .13
7.3 Dimensional accuracy .13
7.3.1 General .13
7.3.2 Determination of characteristic values . 13
7.3.3 Classification in the classification system . 14
7.4 Relative part density . 14
7.4.1 General . 14
7.4.2 Determination of characteristic values . 14
7.4.3 Classification in the classification system . 14
7.5 Classification in classes of part properties . 14
8  Initial classification and regular checking of the classifications .15
8.1 Standard classification procedure . 15
8.2 Initial classification . 15
8.3 Regular checking . 15
8.4 Renewed determination of the classifications in case of replacement of relevant
machine components .
...