Additive manufacturing - General principles - Overview of data processing (ISO/ASTM 52950:2021)

This document covers the principal considerations which apply to data exchange for additive
manufacturing. It specifies terms and definitions which enable information to be exchanged describing
geometries or parts such that they can be additively manufactured. The data exchange method outlines
file type, data enclosed formatting of such data and what this can be used for.
This document
— enables a suitable format for data exchange to be specified,
— describes the existing developments for additive manufacturing of 3D geometries,
— outlines existing file formats used as part of the existing developments, and
— enables understanding of necessary features for data exchange, for adopters of this document.
This document is aimed at users and producers of additive manufacturing processes and associated
software systems. It applies wherever additive processes are used, and to the following fields in
particular:
— producers of additive manufacturing systems and equipment including software;
— software engineers involved in CAD/CAE systems;
— reverse engineering systems developers;
— test bodies wishing to compare requested and actual geometries.

Additive Fertigung - Grundlagen - Überblick über die Datenverarbeitung (ISO/ASTM 52950:2021)

Dieses Dokument deckt die grundlegenden Überlegungen hinsichtlich des Datenaustausches bei der additiven Fertigung ab. Es legt Begriffe fest, welche den Austausch von Informationen ermöglichen, indem Geometrien oder Bauteile so beschrieben werden, dass sie additiv gefertigt werden können. Die Methode für den Datenaustausch legt Dateityp, Formatierung der beigefügten Daten und wofür diese verwendet werden können, dar.
Dieses Dokument
- ermöglicht die Festlegung eines geeigneten Formats für den Datenaustausch,
- beschreibt die bestehenden Entwicklungen zur additiven Fertigung von 3 D Geometrien,
- beschreibt bestehende Dateiformate, die als Teil der bestehenden Entwicklungen verwendet werden, und
- ermöglicht das Verstehen notwendiger Funktionen des Datenaustausches für die Anwender dieses Dokuments.
Dieses Dokument ist an Anwender und Hersteller von additiven Fertigungsverfahren und zugehörigen Softwaresystemen gerichtet. Es ist überall dort anwendbar, wo additive Fertigungsverfahren eingesetzt werden und insbesondere in den folgenden Bereichen:
- Hersteller von additiven Fertigungsanlagen und deren Zubehör inklusive Software;
- Software-Ingenieure, die mit CAD/CAE Systemen arbeiten;
- Entwickler von Reverse Engineering Systemen;
- Prüfstellen, welche erforderliche und tatsächliche Geometrien vergleichen wollen.

Fabrication additive - Principes généraux - Vue d'ensemble des échanges de données (ISO/ASTM 52950:2021)

Aditivna proizvodnja - Splošna načela - Pregled obdelave podatkov (ISO/ASTM 52950:2021)

General Information

Status
Published
Current Stage
6060 - Definitive text made available (DAV) - Publishing
Due Date
10-Feb-2021
Completion Date
10-Feb-2021

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SLOVENSKI STANDARD
SIST EN ISO/ASTM 52950:2021
01-maj-2021
Nadomešča:
SIST EN ISO 17296-4:2016
Aditivna proizvodnja - Splošna načela - Pregled obdelave podatkov (ISO/ASTM
52950:2021)

Additive manufacturing - General principles - Overview of data processing (ISO/ASTM

52950:2021)
Additive Fertigung - Grundlagen - Überblick über die Datenverarbeitung (ISO/ASTM
52950:2021)

Fabrication additive - Principes généraux - Vue d'ensemble des échanges de données

(ISO/ASTM 52950:2021)
Ta slovenski standard je istoveten z: EN ISO/ASTM 52950:2021
ICS:
25.030 3D-tiskanje Additive manufacturing
SIST EN ISO/ASTM 52950:2021 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 52950:2021
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SIST EN ISO/ASTM 52950:2021
EN ISO/ASTM 52950
EUROPEAN STANDARD
NORME EUROPÉENNE
February 2021
EUROPÄISCHE NORM
ICS 25.030 Supersedes EN ISO 17296-4:2016
English Version
Additive manufacturing - General principles - Overview of
data processing (ISO/ASTM 52950:2021)

Fabrication additive - Principes généraux - Vue Additive Fertigung - Grundlagen - Überblick über die

d'ensemble des échanges de données (ISO/ASTM Datenverarbeitung (ISO/ASTM 52950:2021)

52950:2021)
This European Standard was approved by CEN on 17 January 2021.

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

© 2021 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO/ASTM 52950:2021 E

worldwide for CEN national Members.
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SIST EN ISO/ASTM 52950:2021
EN ISO/ASTM 52950:2021 (E)
Contents Page

European foreword ....................................................................................................................................................... 3

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SIST EN ISO/ASTM 52950:2021
EN ISO/ASTM 52950:2021 (E)
European foreword

This document (EN ISO/ASTM 52950:2021) 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 August 2021, and conflicting national standards shall

be withdrawn at the latest by August 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.

This document supersedes EN ISO 17296-4:2016.

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 52950:2021 has been approved by CEN as EN ISO/ASTM 52950:2021 without

any modification.
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SIST EN ISO/ASTM 52950:2021
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SIST EN ISO/ASTM 52950:2021
INTERNATIONAL ISO/ASTM
STANDARD 52950
First edition
2021-01
Additive manufacturing — General
principles — Overview of data
processing
Fabrication additive — Principes généraux — Vue d'ensemble des
échanges de données
Reference number
ISO/ASTM 52950:2021(E)
ISO/ASTM International 2021
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SIST EN ISO/ASTM 52950:2021
ISO/ASTM 52950:2021(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO/ASTM International 2021

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 2021 – All rights reserved
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SIST EN ISO/ASTM 52950:2021
ISO/ASTM 52950:2021(E)
Contents Page

Foreword ........................................................................................................................................................................................................................................iv

Introduction ..................................................................................................................................................................................................................................v

1 Scope ................................................................................................................................................................................................................................. 1

2 Normative reference ......................................................................................................................................................................................... 1

3 Terms and definitions ..................................................................................................................................................................................... 1

4 Data exchange .......................................................................................................................................................................................................... 2

4.1 Dataflow ........................................................................................................................................................................................................ 2

4.1.1 General...................................................................................................................................................................................... 2

4.1.2 Explanation of the key terms used in Figure 1....................................................................................... 2

4.2 Data formats .............................................................................................................................................................................................. 4

4.2.1 General...................................................................................................................................................................................... 4

4.2.2 STL ........................................................................................................................................... ..................................................... 4

4.2.3 VRML (WRL) ...................................................................... .................................................................................................. 4

4.2.4 IGES ............................................................................................................................................................................................. 4

4.2.5 STEP ............................................................................................................................................................................................ 5

4.2.6 AMF ............................................................................................................................................................................................. 5

4.2.7 OBJ ................................................................................................................................................................................................ 5

4.2.8 3MF .............................................................................................................................................................................................. 5

4.3 Data preparation ................................................................................................................................................................................... 5

4.3.1 The importance of data quality for part quality ................................................................................... 5

4.3.2 Export parameters ......................................................................................................................................................... 6

4.3.3 Special considerations in data processing ................................................................................................. 7

Bibliography ................................................................................................................................................................................................................................ 8

© ISO/ASTM International 2021 – All rights reserved iii
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SIST EN ISO/ASTM 52950:2021
ISO/ASTM 52950:2021(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, in

cooperation with ASTM Committee F42, 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).

This first edition of ISO/ASTM 52950 replaces ISO 17296-4:2014, which has been technically revised

and renumbered. The main changes compared to ISO 17296-4:2014 are as follows:
— change of the document number to ISO/ASTM 52950;
— removal of outdated or withdrawn standards ISO 17296-4 and DIN 66301 (VDA-FS);
— revisions to Figure 1.

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 2021 – All rights reserved
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SIST EN ISO/ASTM 52950:2021
ISO/ASTM 52950:2021(E)
Introduction

Additive manufacturing is used to fabricate prototypes, tools, and production parts.

This document aims to offer recommendations and advice to users (customers) and manufactures (both

external and internal service providers), to improve communication between customer and supplier,

and to contribute to an authoritative performance design and a smooth handling of the project.

It assumes that the reader has a basic understanding of the process flow of different additive processes.

It explains the processes used in practice in only as much detail as it necessary to understand the

statements.
© ISO/ASTM International 2021 – All rights reserved v
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SIST EN ISO/ASTM 52950:2021
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SIST EN ISO/ASTM 52950:2021
INTERNATIONAL STANDARD ISO/ASTM 52950:2021(E)
Additive manufacturing — General principles — Overview
of data processing
1 Scope

This document covers the principal considerations which apply to data exchange for additive

manufacturing. It specifies terms and definitions which enable information to be exchanged describing

geometries or parts such that they can be additively manufactured. The data exchange method outlines

file type, data enclosed formatting of such data and what this can be used for.
This document
— enables a suitable format for data exchange to be specified,

— describes the existing developments for additive manufacturing of 3D geometries,

— outlines existing file formats used as part of the existing developments, and

— enables understanding of necessary features for data exchange, for adopters of this document.

This document is aimed at users and producers of additive manufacturing processes and associated

software systems. It applies wherever additive processes are used, and to the following fields in

particular:
— producers of additive manufacturing systems and equipment including software;
— software engineers involved in CAD/CAE systems;
— reverse engineering systems developers;
— test bodies wishing to compare requested and actual geometries.
2 Normative reference

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 — Fundamentals and vocabulary

3 Terms and definitions

For the purposes of this document, the terms and definitions given in in ISO/ASTM 52900 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/
© ISO/ASTM International 2021 – All rights reserved 1
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SIST EN ISO/ASTM 52950:2021
ISO/ASTM 52950:2021(E)
3.1
polygonization
triangulation

creating a digital model of a surface in the form of a multitude of connected polygons

Note 1 to entry: Creating a surface of connected triangular polygons is usually called triangulation.

Note 2 to entry: In addi
...

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