prEN ISO/ASTM 52919

Fabrication additive - Principes de qualification - Méthode d'essai pour les moules en sable pour fonderie métallique (ISO/ASTM DIS 52919:2024)

This document defines test methods for sand molds for metal casting produced by means of additive manufacturing technologies. The test methods include the determination of mechanical and physical properties such as, but not limited to, tensile strength, transverse strength, gas permeability, and also others.

Additive Fertigung - Grundsätze der Qualifizierung - Prüfverfahren für Sandformen für den Metallguss (ISO/ASTM DIS 52919:2024)

Fabrication additive - Principes de qualification - Méthode d'essai pour les moules en sable pour fonderie métallique (ISO/ASTM DIS 52919:2024)

Aditivna proizvodnja - Kvalifikacija - Preskusne metode za peščene kalupe za kovinske ulitke (ISO/ASTM DIS 52919:2024)

General Information

• Status: Not Published
• Publication Date: 12-Aug-2025
• ICS: 25.030 - Additive manufacturing
• Technical Committee: CEN/TC 438 - Additive Manufacturing
• Drafting Committee: CEN/TC 438 - Additive Manufacturing
• Current Stage: 4060 - Closure of enquiry - Enquiry
• Start Date: 10-Apr-2024
• Due Date: 29-Nov-2023
• Completion Date: 10-Apr-2024
• Ref Project: oSIST prEN ISO/ASTM 52919:2024 - Additive manufacturing - Qualification principles - Test methods for metal casting sand moulds (ISO/ASTM DIS 52919:2024)

Standards Content (Sample)

SLOVENSKI STANDARD
01-marec-2024
[Not translated]
Additive manufacturing - Qualification principles - Test methods for metal casting sand
moulds (ISO/ASTM DIS 52919:2024)
Additive Fertigung - Grundsätze der Qualifizierung - Prüfverfahren für Sandformen für
den Metallguss (ISO/ASTM DIS 52919:2024)
Fabrication additive - Principes de qualification - Méthode d'essai pour les moules en
sable pour fonderie métallique (ISO/ASTM DIS 52919:2024)
Ta slovenski standard je istoveten z: prEN ISO/ASTM 52919
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 52919
ISO/TC 261 Secretariat: DIN
Voting begins on: Voting terminates on:
2024-01-17 2024-04-10
Additive manufacturing — Qualification principles — Test
methods for metal casting sand moulds
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
STANDARD UNTIL PUBLISHED AS SUCH.
IN ADDITION TO THEIR EVALUATION AS
BEING ACCEPTABLE FOR INDUSTRIAL,
TECHNOLOGICAL, COMMERCIAL AND
USER PURPOSES, DRAFT INTERNATIONAL
STANDARDS MAY ON OCCASION HAVE TO
BE CONSIDERED IN THE LIGHT OF THEIR
POTENTIAL TO BECOME STANDARDS TO
WHICH REFERENCE MAY BE MADE IN
Reference number
NATIONAL REGULATIONS.
ISO/ASTM DIS 52919:2024(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

ISO/ASTM DIS 52919:2024(E)
DRAFT INTERNATIONAL STANDARD
ISO/ASTM DIS 52919
ISO/TC 261 Secretariat: DIN
Voting begins on: Voting terminates on:

Additive manufacturing — Qualification principles — Test
methods for metal casting sand moulds
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
the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below STANDARD UNTIL PUBLISHED AS SUCH.
or ISO’s member body in the country of the requester. In the United States, such requests should be sent to ASTM International.
IN ADDITION TO THEIR EVALUATION AS
BEING ACCEPTABLE FOR INDUSTRIAL,
ISO copyright office ASTM International
TECHNOLOGICAL, COMMERCIAL AND
CP 401 • Ch. de Blandonnet 8 100 Barr Harbor Drive, PO Box C700
USER PURPOSES, DRAFT INTERNATIONAL
CH-1214 Vernier, Geneva West Conshohocken, PA 19428-2959, USA
STANDARDS MAY ON OCCASION HAVE TO
BE CONSIDERED IN THE LIGHT OF THEIR
Phone: [phone] Phone: [phone]
POTENTIAL TO BECOME STANDARDS TO
Fax: [phone]
WHICH REFERENCE MAY BE MADE IN
Reference number
Email: [e-mail] Email: [e-mail]
NATIONAL REGULATIONS.
Website: www.iso.org Website: www.astm.org ISO/ASTM DIS 52919:2023(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

ISO/ASTM DIS 52919:2023(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Standard practice for sampling specimens of AM-made sand moulds .1
4.1 Factors causing uneven properties in an AM-made sand mould . 1
4.2 Sampling specimens of an AM-made sand mould . 2
5 Test methods applicable to evaluating an AM-made sand mould .2
5.1 General . 2
5.2 Requirements for sampling test specimens of an AM-made sand mould . 3
5.3 Applicable test methods . 3
5.3.1 Tensile strength test . 3
5.3.2 Bending/transverse strength test . 4
5.3.3 Gas permeability test . 4
5.3.4 Thermal expansion test . 4
6 Documentation . 5
6.1 General . 5
6.2 Purchasing an AM-made sand mould . 5
6.3 Verifying AM machine performance . 5
Annex A (normative) Identifier and orientation index of a specimen . 7
Annex B (informative) Example of sampling test specimens and reporting table .8
Bibliography .11
iii
© ISO/ASTM International 2023 – All rights reserved

ISO/ASTM DIS 52919:2023(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

ISO/ASTM DIS 52919:2023(E)
Introduction
Additive manufacturing (AM) technology, which enables a part with a complicated shape to be made
without a master mould, has been applied to fabricate advanced sand moulds for metal casting. AM-
made sand moulds have advantages in that it is possible to make cast parts not only with more precise
dimensions, but also with thinner and complicated shapes; therefore, application fields in the foundry
industry are expanding.
The difference between sand moulds and general mechanical/structural parts is that they are never
used as final products. In other words, a sand mould is crushed after each casting process when its role
ends. Therefore, sand moulds do not require long-term-stable properties, but specific properties for the
casting process, such as having stiffness with a good balance between sufficient mechanical strength
and crushability, as well as gas permeability and physical thermal properties for a hot environment. The
test methods and dimensions of specimens are standardized in existing documents for conventionally
made sand moulds, and they are applicable to AM-made sand moulds. However, testing procedures
specially defined for AM-made sand moulds that consider uneven properties by location in a build
space, among build cycles, as well as anisotropy due to layer stacking and progressive processes, do not
exist yet.
This document provides standard practices for sampling specimens of AM-made sand moulds, for
application in parallel existing test methods for the mechanical and physical properties of a metal
[1-5]
casting sand mould made in a conventional way. In this document existing standards for testing
tensile strength, transverse strength, gas permeability and thermal expansion are cited in terms of
applicability to test pieces extracted from sand moulds made with AM. In addition, examples of test
reports for two typical applications, where this document can be applied, are presented. One is for
purchasing AM-made sand moulds and the other is for verifying the performance of an AM machine for
sand moulds.
v
© ISO/ASTM International 2023 – All rights reserved

DRAFT INTERNATIONAL STANDARD ISO/ASTM DIS 52919:2023(E)
Additive manufacturing — Qualification principles — Test
methods for metal casting sand moulds
1 Scope
This document deals with test methods for metal casting sand moulds produced using additive
manufacturing technologies, with mechanical and physical properties including, but not limited to,
tensile strength, transverse strength, gas permeability and others.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their contents
constitute 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
IISO/ASTM 52901:2017, Additive manufacturing — General principles — Requirements for purchased AM
parts
ISO/ASTM 52921-13:2019, Standard Terminology for Additive Manufacturing—Coordinate Systems and
Test Methodologies
ISO 17295:2023, Additive manufacturing — General principles — Part positioning, coordinates and
orientation
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO/ASTM 52900 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 https:// www .electropedia .org/
4 Standard practice for sampling specimens of AM-made sand moulds
4.1 Factors causing uneven properties in an AM-made sand mould
An AM machine for sand mould controls joining
...