EN ISO/ASTM 52911-3:2023

Additive Manufacturing - Design - Part 3: PBF-EB of metallic materials (ISO/ASTM 52911-3:2023)

This document specifies the features of electron beam powder bed fusion of metals (PBF-EB/M) and provides detailed design recommendations.
Some of the fundamental principles are also applicable to other additive manufacturing (AM) processes, provided that due consideration is given to process-specific features.
This document also provides a state of the art review of design guidelines associated with the use of powder bed fusion (PBF) by bringing together relevant knowledge about this process and by extending the scope of ISO/ASTM 52910.

Additive Fertigung - Konstruktion - Teil 3: Pulverbettbasiertes Schmelzen von Metallen mittels Elektronenstrahl (ISO/ASTM 52911-3:2023)

Dieses Dokument legt die Merkmale der Elektronenstrahl-Pulverbettfusion von Metallen (PBF-EB/M) fest und bietet detaillierte Konstruktionsempfehlungen.
Einige der grundlegenden Prinzipien sind auch für andere additive Fertigungsverfahren (AM-Verfahren) anwendbar, vorausgesetzt, dass die prozessspezifischen Merkmale berücksichtigt werden.
Dieses Dokument bietet eine Überprüfung von Konstruktionsleitfäden auf dem Stand der Technik im Zusammenhang mit Pulverbettfusion (PBF), indem relevantes Wissen zu diesem Verfahren zusammengeführt und der Anwendungsbereich von ISO/ASTM 52910 erweitert wird.

Fabrication additive - Conception - Partie 3: BF-EB de matériaux métalliques (ISO/ASTM 52911-3:2023)

Le présent document spécifie les caractéristiques de la fusion par faisceau d'électrons sur lit de poudre métallique (PBF-EB/M) et fournit des recommandations de conception détaillées.
Certains des principes fondamentaux sont également applicables à d'autres procédés de fabrication additive (FA), sous réserve que les caractéristiques spécifiques à un procédé soient dûment prises en compte.
Le présent document fournit également un État de l’Art des lignes directrices de conception associées à l’utilisation d’une fusion sur lit de poudre (PBF), en compilant des connaissances pertinentes sur ce procédé et en élargissant le domaine d’application de l’ISO/ASTM 52910.

Aditivna proizvodnja - Konstruiranje - 3. del: Spajanje kovinskega prahu v postelji z elektronskim snopom (PBF-EB) (ISO/ASTM 52911-3:2023)

Ta dokument določa značilnosti fuzije kovinskih prahastih plasti z elektronskim žarkom (EB-PBF-M) in
podaja podrobna priporočila za podrobno načrtovanje.
Nekatera temeljna načela je mogoče uporabiti tudi pri drugih procesih aditivne proizvodnje (AM) pod pogojem, da se upošteva značilnosti procesa. Ta dokument ponuja tudi najsodobnejši pregled smernic za načrtovanje, povezanih z uporabo fuzije prahastih plasti (PFB), ki združujejo ustrezno znanje o tem procesu in razširjajo področje uporabe standarda ISO/ASTM 52910.

General Information

• Status: Published
• Publication Date: 07-Mar-2023
• 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: 08-Mar-2023
• Due Date: 20-May-2023
• Completion Date: 08-Mar-2023
• Ref Project: SIST EN ISO/ASTM 52911-3:2023 - Additive Manufacturing - Design - Part 3: PBF-EB of metallic materials (ISO/ASTM 52911-3:2023)

Standards Content (Sample)

SLOVENSKI STANDARD
01-maj-2023
Aditivna proizvodnja - Konstruiranje - 3. del: Spajanje kovinskega prahu v postelji
z elektronskim snopom (PBF-EB) (ISO/ASTM 52911-3:2023)
Additive Manufacturing - Design - Part 3: PBF-EB of metallic materials (ISO/ASTM
52911-3:2023)
Additive Fertigung - Konstruktion - Teil 3: Pulverbettbasiertes Schmelzen von Metallen
mittels Elektronenstrahl (ISO/ASTM 52911-3:2023)
Fabrication additive - Conception - Partie 3: BF-EB de matériaux métalliques (ISO/ASTM
52911-3:2023)
Ta slovenski standard je istoveten z: EN ISO/ASTM 52911-3:2023
ICS:
25.030 3D-tiskanje Additive manufacturing
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN ISO/ASTM 52911-3
EUROPEAN STANDARD
NORME EUROPÉENNE
March 2023
EUROPÄISCHE NORM
ICS 25.030
English Version
Additive Manufacturing - Design - Part 3: PBF-EB of
metallic materials (ISO/ASTM 52911-3:2023)
Fabrication additive - Conception - Partie 3: BF-EB de Additive Fertigung - Konstruktion - Teil 3:
matériaux métalliques (ISO/ASTM 52911-3:2023) Pulverbettbasiertes Schmelzen von Metallen mittels
Elektronenstrahl (ISO/ASTM 52911-3:2023)
This European Standard was approved by CEN on 17 February 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 52911-3:2023 E
worldwide for CEN national Members.

Contents Page
European foreword . 3

European foreword
This document (EN ISO/ASTM 52911-3:2023) 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 September 2023, and conflicting national standards
shall be withdrawn at the latest by September 2023.
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 52911-3:2023 has been approved by CEN as EN ISO/ASTM 52911-3:2023
without any modification.
INTERNATIONAL ISO/ASTM
STANDARD 52911-3
First edition
2023-02
Additive manufacturing — Design —
Part 3:
PBF-EB of metallic materials
Fabrication additive — Conception —
Partie 3: PBF-EB de matériaux métalliques
Reference number
ISO/ASTM 52911-3:2023(E)
© ISO/ASTM International 2023
ISO/ASTM 52911-3:2023(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
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.
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Published in Switzerland
ii
© ISO/ASTM International 2023 – All rights reserved

ISO/ASTM 52911-3:2023(E)
Contents Page
Foreword .v
Introduction . vi
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Symbols and abbreviated terms.2
4.1 Symbols . 2
4.2 Abbreviated terms . 3
5 Characteristics of powder bed fusion (PBF) processes . 3
5.1 General . 3
5.2 Part size and cost considerations . 4
5.3 Benefits to be considered in regard to the PBF process . 4
5.4 Limitations to be considered in regard to the PBF process . 4
5.5 Build layout, part orientation, and cost considerations. 5
5.6 Feature constraints (islands, overhang, stair-step effect) . 6
5.6.1 General . 6
5.6.2 Islands . 6
5.6.3 Overhang . 6
5.6.4 Stair-step effect . 6
5.7 Dimensional, form and positional accuracy . 7
5.8 Data quality, resolution, representation . 7
6 Design guidelines for electron beam powder bed fusion of metals (PBF-EB/M) .8
6.1 General . 8
6.1.1 Selecting PBF-EB/M . 8
6.1.2 Design and test cycles . 8
6.2 Material and structural characteristics . 8
6.3 Build orientation, positioning and arrangement . 9
6.3.1 General . 9
6.3.2 Powder spreading . 9
6.3.3 Support structures design . 10
6.3.4 Part nesting . 12
6.3.5 Build plate part design considerations. 13
6.3.6 Curl effect . 13
6.3.7 Melt parameters . 14
6.4 Anisotropy/heterogeneity of the material and part characteristics .15
6.4.1 General .15
6.4.2 Grain morphology .15
6.4.3 Porosity . . . 16
6.4.4 Intermetallic diffusion layer . 16
6.4.5 Chemistry heterogeneity . 16
6.4.6 Thermal history . 16
6.5 Surfaces . 17
6.6 Post-processing . 17
6.6.1 General . 17
6.6.2 Surface finishing . 17
6.6.3 Removal of powder residue .
...