Additive manufacturing - Round robin testing - General guidelines (ISO/ASTM TR 52917:2022)

This document is focused on the management of the round robin study (RRS) and can provide guidance for the scope development, planning, and execution of the RRS study. It can provide guidance to identify the feedstock, machine operations, process controls, and post-processing operations prior to running the study. RR organizers can identify controlled and free parameters in the study. This document can also provide guidance on the selection and use of test methods that can be applicable. The RRS investigates the variations found in AM parts. The outcome of the study can be used to improve the maturation of AM technologies.
A RRS, as described in this document, is different from an inter-laboratory comparison because an inter-laboratory study establishes the variability in a measurement method when undertaken by multiple users on a well-controlled artefact.

Additive Fertigung - Ringversuche - Allgemeine Leitlinien (ISO/ASTM TR 52917:2022)

Dieses Dokument fokussiert sich auf das Management der Ringstudie (RRS) und kann als Anleitung für die Entwicklung des Anwendungsbereichs, die Planung und die Ausführung der RRS-Studie dienen. Es kann als Anleitung für die Identifizierung des Ausgangsmaterials, des Maschinenbetriebs, der Prozesssteuerungen und der Nachbearbeitungsaktivitäten vor dem Beginn der Studie dienen. RRS-Organisatoren können kontrollierte und freie Parameter in der Studie identifizieren. Dieses Dokument kann außerdem als Anleitung für die Auswahl und Nutzung anwendbarer Prüfverfahren dienen. Die RRS untersucht die in AM-Teilen erkannten Abweichungen. Das Ergebnis der Studie kann verwendet werden, um die Reife von AM-Technologien zu verbessern.
Eine wie in diesem Dokument beschriebene RRS unterscheidet sich von dem laborübergreifenden Vergleich, weil diese die Variabilität in einem Messverfahren bei Anwendung durch mehrere Anwender an sorgfältig kontrollierten Artefakten bestimmt.

Fabrication additive - Essais interlaboratoires - Lignes directrices générales (ISO/ASTM TR 52917:2022)

Le présent document est axé sur la gestion de l’étude interlaboratoires (EIL) et peut fournir un guide pour le développement du domaine d’application, la planification et l’exécution de l’étude EIL. Il peut fournir un guide pour identifier la matière première, les opérations de la machine, les contrôles de procédé et les opérations de post-traitement avant d’exécuter l’étude. Les organisateurs d’EIL peuvent identifier des paramètres contrôlés et libres dans l’étude. Le présent document peut également fournir un guide sur la sélection et l’utilisation des méthodes d’essai qui peuvent être applicables. L’EIL examine les variations observées dans les pièces de FA. Le résultat de l’étude peut être utilisé pour améliorer la maturation des technologies de FA.
Une EIL, telle que décrite dans le présent document, est différente d’une comparaison interlaboratoires parce qu’une étude interlaboratoires établit la variabilité d’une méthode de mesure lorsqu’elle est mise en œuvre par de multiples utilisateurs sur un artefact bien contrôlé.

Aditivna proizvodnja - Krožno preskušanje - Splošne smernice (ISO/ASTM TR 52917:2022)

General Information

Status

Published

Publication Date

04-Oct-2022

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

05-Oct-2022

Completion Date

05-Oct-2022

Ref Project

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SLOVENSKI STANDARD
SIST-TP CEN ISO/ASTM/TR 52917:2023
01-marec-2023
Aditivna proizvodnja - Krožno preskušanje - Splošne smernice (ISO/ASTM TR
52917:2022)
Additive manufacturing - Round robin testing - General guidelines (ISO/ASTM TR
52917:2022)

Additive Fertigung - Ringversuche - Allgemeine Leitlinien (ISO/ASTM TR 52917:2022)

Fabrication additive - Essais interlaboratoires - Lignes directrices générales (ISO/ASTM

TR 52917:2022)
Ta slovenski standard je istoveten z: CEN ISO/ASTM/TR 52917:2022
ICS:
25.030 3D-tiskanje Additive manufacturing
SIST-TP CEN ISO/ASTM/TR 52917:2023 en,fr,de

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
SIST-TP CEN ISO/ASTM/TR 52917:2023
---------------------- Page: 2 ----------------------
SIST-TP CEN ISO/ASTM/TR 52917:2023
CEN ISO/ASTM/TR
TECHNICAL REPORT
52917
RAPPORT TECHNIQUE
TECHNISCHER REPORT
October 2022
ICS 25.030
English Version
Additive manufacturing - Round robin testing - General
guidelines (ISO/ASTM TR 52917:2022)

Fabrication additive - Essais interlaboratoires - Lignes Additive Fertigung - Ringversuche - Leitfaden zur

directrices générales (ISO/ASTM TR 52917:2022) Durchführung von Ringversuchen (ISO/ASTM TR

52917:2022)

This Technical Report was approved by CEN on 16 September 2022. It has been drawn up by the Technical Committee CEN/TC

438.

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

worldwide for CEN national Members.
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SIST-TP CEN ISO/ASTM/TR 52917:2023
CEN ISO/ASTM/TR 52917:2022 (E)
Contents Page

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

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SIST-TP CEN ISO/ASTM/TR 52917:2023
CEN ISO/ASTM/TR 52917:2022 (E)
European foreword

This document (CEN ISO/ASTM/TR 52917:2022) 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.

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.

Endorsement notice

The text of ISO/ASTM TR 52917:2022 has been approved by CEN as CEN ISO/ASTM/TR 52917:2022

without any modification.
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SIST-TP CEN ISO/ASTM/TR 52917:2023
---------------------- Page: 6 ----------------------
SIST-TP CEN ISO/ASTM/TR 52917:2023
TECHNICAL ISO/ASTM TR
REPORT 52917
First edition
2022-08
Additive manufacturing — Round
robin testing — General guidelines
Fabrication additive — Essais interlaboratoires — Lignes directrices
générales
Reference number
ISO/ASTM TR 52917:2022(E)
© ISO/ASTM International 2022
---------------------- Page: 7 ----------------------
SIST-TP CEN ISO/ASTM/TR 52917:2023
ISO/ASTM TR 52917:2022(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO/ASTM International 2022

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
© ISO/ASTM International 2022 – All rights reserved
---------------------- Page: 8 ----------------------
SIST-TP CEN ISO/ASTM/TR 52917:2023
ISO/ASTM TR 52917:2022(E)
Contents Page

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

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

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

2 Normative references ..................................................................................................................................................................................... 1

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

4 RRS task force and RRS manager .......................................................................................................................................................1

5 Develop a round robin study ...................................................................................................................................................................2

5.1 Suggested steps to develop a round robin study ..................................................................................................... 2

5.2 Identify the goal of the study and select the round robin task force ..................................................... 2

5.3 Prepare scope of round robin study .................................................................................................................................... 2

5.4 Develop a manufacturing plan ................................................................................................................................................. 3

5.5 Process control document ............................................................................................................................................................ 5

6 Develop a measurement and testing plan ................................................................................................................................. 5

7 Solicit participants ............................................................................................................................................................................................5

8 Send the manufacturing plan to participants ...................................................................................................................... 5

9 Execute a pilot run with select participants .......................................................................................................................... 6

10 Execute a full scale production run ................................................................................................................................................. 6

11 Data handling .......................................................................................................................................................................................................... 7

12 Prepare study report ......................................................................................................................................................................................7

13 Record keeping ...................................................................................................................................................................................................... 7

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

iii
© ISO/ASTM International 2022 – All rights reserved
---------------------- Page: 9 ----------------------
SIST-TP CEN ISO/ASTM/TR 52917:2023
ISO/ASTM TR 52917:2022(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 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).

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.
© ISO/ASTM International 2022 – All rights reserved
---------------------- Page: 10 ----------------------
SIST-TP CEN ISO/ASTM/TR 52917:2023
ISO/ASTM TR 52917:2022(E)
Introduction

This document outlines the steps with regard to aspects of design to conduct and run a round robin

study (RRS) to assess the degree of variability in an additive manufacturing material or process.

The RRS can be used to study variations arising from the AM production process including feedstock,

machine operation, process control, and post processing. The RRS plan can identify various aspects of

the AM process to be considered to execute the study so that it is possible to maximize the consistency

of the results based on the objective of the study.

Additive manufacturing is still a developing technology and round robin studies play an important role

to help generate the information needed to populate materials engineering databases, determine design

allowables, and improve processing and post-processing consistency in order to drive maturation.

The result of the RRS is a qualitative or quantitative assessment of the material used or the process

variability, rather than the assessment of accuracy and precision of a specific test method from an inter-

laboratory study. Additionally, RRS can involve other entities besides laboratories.

Round robin studies differ from normal research studies by having different participants, each trying

to undertake a nominally identical process. The aim is to determine the effect of the desired variables

on the process outcome. The output can be used for different applications such as the demonstration

of process robustness or for derivation of material property data. A well-conducted RSS does not

guarantee small variability, but ensures that any observed variability is indicative of the material or

process, not poor study design.
© ISO/ASTM International 2022 – All rights reserved
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SIST-TP CEN ISO/ASTM/TR 52917:2023
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SIST-TP CEN ISO/ASTM/TR 52917:2023
TECHNICAL REPORT ISO/ASTM TR 52917:2022(E)
Additive manufacturing — Round robin testing — General
guidelines
1 Scope

This document is focused on the management of the round robin study (RRS) and can provide guidance

for the scope development, planning, and execution of the RRS study. It can provide guidance to identify

the feedstock, machine operations, process controls, and post-processing operations prior to running

the study. RR organizers can identify controlled and free parameters in the study. This document

can also provide guidance on the selection and use of test methods that can be applicable. The RRS

investigates the variations found in AM parts. The outcome of the study can be used to improve the

maturation of AM technologies.

A RRS, as described in this document, is different from an inter-laboratory comparison because an inter-

laboratory study establishes the variability in a measurement method when undertaken by multiple

users on a well-controlled artefact.
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

3 Terms and definitions

For the purposes of this document, the terms and definitions given 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 https:// www .electropedia .org/
3.1
process control document
document recording process variables, procedure followed, and building notes
4 RRS task force and RRS manager

The RR task force is the executive team responsible for establishing the goals and scope of the round

robin study. The procedure presented in this guide can consist of sequences to help the RRS task force

in preparing the RRS. Once the RRS has been developed, an RRS manager can be assigned to assist

participants with operational questions.
The RRS task force can be the sole arbiter of technical issues.
© ISO/ASTM International 2022 – All rights reserved
---------------------- Page: 13 ----------------------
SIST-TP CEN ISO/ASTM/TR 52917:2023
ISO/ASTM TR 52917:2022(E)
5 Develop a round robin study
5.1 Suggested steps to develop a round robin study
Suggested steps in an RRS are given in Table 1.
Table 1 — Sequence of a round robin study
Clause/subclause in this docu-
Sequence Procedure
ment
Determine goal and select the RRS
1 5.2
task force
2 Determine scope of RRS 5.3
3 Develop a manufacturing plan 5.4
4 Process control document 5.5
Develop a measurement and testing
5 6
plan
6 Solicit participants 7
7 Provide RRS plan 8
8 Pilot run (if needed) 9
9 Full scale run 10
10 Data handling 11
11 Prepare study report 12
12 Record keeping 13
5.2 Identify the goal of the study and select the round robin task force
Identifying the objectiv
...

SLOVENSKI STANDARD
kSIST-TP FprCEN/ISO/ASTM TR 52917:2022
01-julij-2022
Aditivna proizvodnja - Krožno preskušanje - Splošne smernice (ISO/ASTM PRF TR
52917:2022)

Additive manufacturing - Round robin testing - General guidelines (ISO/ASTM PRF TR

52917:2022)
Additive Fertigung - Ringversuche - Leitfaden zur Durchführung von Ringversuchen
(ISO/ASTM PRF TR 52917:2022)

Fabrication additive - Essais inter-laboratoires - Lignes directrices générales (ISO/ASTM

PRF TR 52917:2022)
Ta slovenski standard je istoveten z: FprCEN/ISO/ASTM TR 52917
ICS:
25.030 3D-tiskanje Additive manufacturing
kSIST-TP FprCEN/ISO/ASTM TR en,fr,de
52917:2022

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
kSIST-TP FprCEN/ISO/ASTM TR 52917:2022
---------------------- Page: 2 ----------------------
kSIST-TP FprCEN/ISO/ASTM TR 52917:2022
TECHNICAL ISO/ASTM TR
REPORT 52917
First edition
Additive manufacturing — Round
robin testing — General guidelines
Fabrication additive — Essais inter-laboratoires — Lignes directrices
générales
PROOF/ÉPREUVE
Reference number
ISO/ASTM TR 52917:2022(E)
© ISO/ASTM TR 2022
---------------------- Page: 3 ----------------------
kSIST-TP FprCEN/ISO/ASTM TR 52917:2022
ISO/ASTM TR 52917:2022(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO/ASTM International 2022

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
PROOF/ÉPREUVE © ISO/ASTM International 2022 – All rights reserved
---------------------- Page: 4 ----------------------
kSIST-TP FprCEN/ISO/ASTM TR 52917:2022
ISO/ASTM TR 52917:2022(E)
Contents Page