kSIST FprEN ISO/ASTM 52959:2025

SLOVENSKI STANDARD
oSIST prEN ISO/ASTM 52959:2024
01-marec-2024
[Not translated]
Additive Manufacturing of metals - Test artefacts - Compression validation coupons for
lattice designs (ISO/ASTM DIS 52959:2024)
Additive Fertigung von Metallen - Testartefakte - Kompressionsvalidierungscoupons für
Gitterkonstruktionen (ISO/ASTM DIS 52959:2024)
Fabrication additive de métaux - Pièces types d’essai - Coupons de validation de
compression pour les conceptions de treillis (ISO/ASTM DIS 52959:2024)
Ta slovenski standard je istoveten z: prEN ISO/ASTM 52959
ICS:
25.030 3D-tiskanje Additive manufacturing
oSIST prEN ISO/ASTM 52959:2024 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

oSIST prEN ISO/ASTM 52959:2024

oSIST prEN ISO/ASTM 52959:2024
DRAFT INTERNATIONAL STANDARD
ISO/ASTM DIS 52959
ISO/TC 261 Secretariat: DIN
Voting begins on: Voting terminates on:
2024-01-16 2024-04-09
Additive Manufacturing of metals — Test artefacts —
Compression validation coupons for lattice designs
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
ISO/CEN PARALLEL PROCESSING
THEREFORE SUBJECT TO CHANGE AND MAY
NOT BE REFERRED TO AS AN INTERNATIONAL
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Reference number
NATIONAL REGULATIONS.
ISO/ASTM DIS 52959:2024(E)
RECIPIENTS OF THIS DRAFT ARE INVITED
TO SUBMIT, WITH THEIR COMMENTS,
NOTIFICATION OF ANY RELEVANT PATENT
RIGHTS OF WHICH THEY ARE AWARE AND TO
PROVIDE SUPPORTING DOCUMENTATION. © ISO/ASTM International 2024

oSIST prEN ISO/ASTM 52959:2024
ISO/ASTM DIS 52959:2024(E)
DRAFT INTERNATIONAL STANDARD
ISO/ASTM DIS 52959
ISO/TC 261 Secretariat: DIN
Voting begins on: Voting terminates on:

Additive Manufacturing of metals — Test artefacts —
Compression validation coupons for lattice designs
ICS: 25.030
This document is circulated as received from the committee secretariat.
© ISO/ASTM International 2024 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 52959:2023(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 2024 – All rights reserved
PROVIDE SUPPORTING DOCUMENTATION. © ISO/ASTM International 2023

oSIST prEN ISO/ASTM 52959:2024
ISO/ASTM DIS 52959:2023(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Values . 1
5 Summary of test method . 2
6 Significance of test method .2
6.1 Significance . . . 2
6.2 Use . 2
7 Apparatus . 3
7.1 Testing Machines . 3
8 Hazards . 3
9 Coupons . 3
9.1 Coupon Geometry . 3
9.2 Preparation of coupons for compressive tests . 4
10 Procedure .4
10.1 Cleaning . 4
10.2 Coupon measurement . 4
10.3 Specimen installation . 4
10.4 Testing speed . 4
10.5 Test conduct . 5
10.5.1 Initiation of the test . 5
10.5.2 Ductile specimens . 5
10.5.3 Brittle sspecimens . 5
10.6 Number of specimens . 5
11 Calculation or interpretation of results . 5
11.1 General . 5
11.2 Lattice elastic modulus . 5
11.3 Lattice yield strength . 5
11.4 Lattice compressive strength . 5
11.5 Lattice plateau stress . . 6
11.6 Amount of work required for deformation . 6
12 Report . 6
13 Precision and bias .7
Bibliography . 8
iii
© ISO/ASTM International 2023 – All rights reserved

oSIST prEN ISO/ASTM 52959:2024
ISO/ASTM DIS 52959:2023(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.
iv
© ISO/ASTM International 2023 – All rights reserved

oSIST prEN ISO/ASTM 52959:2024
ISO/ASTM DIS 52959:2023(E)
Introduction
Due to inherent variability of the additive manufacturing (AM) process, consistent manufacture of
components is of greater concern than traditional subtractive methods. The validation and verification
activities to support the manufacture of components is critical in the quality systems to reliably
produce consistent parts. There is a growing usage of lattice or porous designs due to the design
flexibility afforded by AM; however, each manufacturing system may have different capabilities in
terms of resolution of features as well as resultant strength. However, the need for the components
to be used requires the development of standardized coupons that may be used as a surrogate in
destructive evaluations. These applications include latticed or porous components that are placed
under compressive loads. Since each lattice design is potentially different for all manufacturers, a
standardized method is needed to ensure that the lattice design is adequately represented and can
be consistently assessed. This would allow for the evaluation of the compressive mechanical strength
with adequate representation of the manufacturing of the lattice design. Although ASTM E9 provides
standard methods of compression testing for metallic materials, specific considerations for lattice
structures, such as the minimum number of unit cells are not included.
v
© ISO/ASTM International 2023 – All rights reserved

oSIST prEN ISO/ASTM 52959:2024

oSIST prEN ISO/ASTM 52959:2024
DRAFT INTERNATIONAL STANDARD ISO/ASTM DIS 52959:2023(E)
Additive Manufacturing of metals — Test artefacts —
Compression validation coupons for lattice designs
1 Scope
This test method covers the apparatus, specimens, and procedure for axial force compression testing of
additively manufactured (AM) metallic lattices at room temperature.
This standard does not purport to address all of the safety concerns, if any, associated with its use. It is
the responsibility of the user of this standard to establish appropriate safety, health, and environmental
practices and determine the applicability of regulatory limitations prior to use.
2 Normative references
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
ISO 6892, Metallic Materials – Tensile Testing
ASTM E4, Practices for Force Calibration and Verification of Testing Machines
ASTM E6, Terminology Relating to Methods of Mechanical Testing
ASTM E9, Test Methods of Compression Testing of Metallic Materials at Room Temperature
ASTM E111, Test
...