prEN ISO/ASTM 52953

SLOVENSKI STANDARD
01-junij-2023
Aditivna proizvodnja kovin - Splošna načela - Registracija geometrijskih podatkov,
pridobljenih pri spremljanju procesa in za nadzor kakovosti (ISO/ASTM DIS
52953:2023)
Additive Manufacturing for metals - General Principles - Registration of geometric data
acquired from process-monitoring and for quality control (ISO/ASTM DIS 52953:2023)
Additive Fertigung von Metallen - Allgemeine Grundsätze - Registrierung von
Geometriedaten aus der Prozessüberwachung und zur Qualitätskontrolle (ISO/ASTM
DIS 52953:2023)
Fabrication additive de métaux - Principes généraux - Enregistrement de données
géométriques acquises à partir de la surveillance du procédé et pour le contrôle qualité
(ISO/ASTM DIS 52953:2023)
Ta slovenski standard je istoveten z: prEN ISO/ASTM 52953
ICS:
25.030 3D-tiskanje Additive manufacturing
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

DRAFT INTERNATIONAL STANDARD
ISO/ASTM DIS 52953
ISO/TC 261 Secretariat: DIN
Voting begins on: Voting terminates on:
2023-04-26 2023-07-19
Additive manufacturing for metals — General principles
— Registration of geometric data acquired from process-
monitoring and for quality control
ICS: 25.030
This document is circulated as received from the committee secretariat.
THIS DOCUMENT IS A DRAFT CIRCULATED
FOR COMMENT AND APPROVAL. IT IS
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THEREFORE SUBJECT TO CHANGE AND MAY
NOT BE REFERRED TO AS AN INTERNATIONAL
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NATIONAL REGULATIONS.
ISO/ASTM DIS 52953:2023(E)
RECIPIENTS OF THIS DRAFT ARE INVITED
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PROVIDE SUPPORTING DOCUMENTATION. © ISO/ASTM International 2023

ISO/ASTM DIS 52953:2023(E)
DRAFT INTERNATIONAL STANDARD
ISO/ASTM DIS 52953
ISO/TC 261 Secretariat: DIN
Voting begins on: Voting terminates on:

Additive manufacturing for metals — General principles
— Registration of geometric data acquired from process-
monitoring and for quality control
ICS: 25.030
This document is circulated as received from the committee secretariat.
© ISO/ASTM International 2023 THIS DOCUMENT IS A DRAFT CIRCULATED
FOR COMMENT AND APPROVAL. IT IS
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
ISO/CEN PARALLEL PROCESSING
THEREFORE SUBJECT TO CHANGE AND MAY
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on
NOT BE REFERRED TO AS AN INTERNATIONAL
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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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NATIONAL REGULATIONS.
Website: www.iso.org Website: www.astm.org ISO/ASTM DIS 52953:2023(E)
RECIPIENTS OF THIS DRAFT ARE INVITED
Published in Switzerland
TO SUBMIT, WITH THEIR COMMENTS,
NOTIFICATION OF ANY RELEVANT PATENT
RIGHTS OF WHICH THEY ARE AWARE AND TO
ii
© ISO/ASTM International 2023 – All rights reserved
PROVIDE SUPPORTING DOCUMENTATION. © ISO/ASTM International 2023

ISO/ASTM DIS 52953:2023(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative reference .1
3 Terms, definitions and abbreviated terms . 1
3.1 Abbreviated terms . 2
4 Significance and use .3
5 Data registration procedure .3
6 Sensor categorization and metadata items . 4
6.1 Sensor categorization . 4
6.2 Metadata in in-situ measurement . 4
6.2.1 Laser-scanning-related data elements . 4
6.2.2 Layer-wise images . 5
6.2.3 Registering melt pool monitoring images . 6
6.3 Sources of uncertainty . 8
7 Data alignment with coordinate system transformations . 9
7.1 General . 9
7.2 Methodology overview . 9
7.3 Melt pool image, scan path, and layer-wise image alignment . 10
7.3.1 General . 10
7.3.2 Melt pool image to scan path alignment. 10
7.3.3 Scan path to build platform alignment .12
7.3.4 Layer-wise image to the build platform alignment .12
7.4 Layer-wise images alignment. 13
7.5 Layer-wise images to the related XCT model alignment . 14
7.6 CMM Model to CAD model alignment . 15
7.7 Global coordinate system . 16
Annex A (informative) Sensors and inspection systems categorization .17
Annex B (informative) Examples of candidate global coordinate systems .20
Annex C (informative) Edge fitting .21
Bibliography .23
iii
© ISO/ASTM International 2023 – All rights reserved

ISO/ASTM DIS 52953:2023(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.
The committee responsible for this document is 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.
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© ISO/ASTM International 2023 – All rights reserved

ISO/ASTM DIS 52953:2023(E)
Introduction
Additive manufacturing (AM) is the general term for those technologies that successively join material
to create physical objects as specified by its 3D design model data. Current AM technologies can
fabricate parts layer-by-layer using different material types as inputs. The resulting parts have complex
geometries that are needed for applications in a variety of manufacturing industries, where AM parts
offer significant advantages or where the parts cannot be made using the traditional manufacturing
technologies, such as machining and welding.
AM machines are being instrumented with various types of sensors which collect data throughout
a build. Often, each sensor is designed to collect only one type of measurement dataset in a unique
coordinate system. The use of this monitoring data for applications such as qualifying AM components
is enhanced when a diverse range of sensor datasets are used and compared to post-process inspection.
This requires multi-modal dataset registration including data alignment.
Registration of these datasets consists of recording necessary metadata and data alignment. A
registered dataset allows the extraction of features from data from different sensors to be appropriately
registered to post-process inspection. These features may be used for a range of applications including
to control variations in powder spreading, melt-pool geometry, thermal stability, layer integrity, defect
detection, and part quality.
It is the intention of this document to provide a procedure and methods to register AM data, including:
a) associating validated data with known time, locations, and origin, and
b) data alignment for process monitoring and control.
Laser-based powder bed fusion for metals (PBF-LB/M) is used to demonstrate the data registration
procedure. The procedure can be applied to monitor other AM processes, such as direct energy
deposition, polymer or ceramic powder bed fusion, binder jetting, and photopolymerization.
v
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