CEN ISO/ASTM/TR 52917:2022
(Main)Additive manufacturing - Round robin testing - General guidelines (ISO/ASTM TR 52917:2022)
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.
Dodajalna izdelava - Krožno preskušanje - Splošne smernice (ISO/ASTM TR 52917:2022)
Standard podaja smernice za razvoj in izvedbo krožnih študij za določevanje procesne variance pri proizvodnji materialov s tehnikami aditivne proizvodnje. Smernice bodo omejene na spremembe materialov aditivne proizvodnje in ne na spremembe orodij ali metod za merjenje, ki so zajete v obstoječih smernicah za medlaboratorijsko primerjavo.
General Information
- Status
- Published
- Publication Date
- 04-Oct-2022
- 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
Overview
CEN ISO/ASTM/TR 52917:2022 - "Additive manufacturing - Round robin testing - General guidelines" provides practical guidance for planning, managing and executing round robin studies (RRS) in additive manufacturing (AM). The technical report focuses on how to organize an RRS to investigate process and material variability arising from feedstock, machine operations, process control and post‑processing. It clarifies that an RRS assesses variability of AM parts across participants and is distinct from an inter‑laboratory comparison, which evaluates variability of a measurement method on a controlled artifact.
Key topics and requirements
- RRS management and governance
- Formation of an RRS task force and appointment of an RRS manager to coordinate participants and technical issues.
- Scope and objective definition
- Identify the study goal (e.g., assess repeatability/reproducibility, populate material databases, demonstrate process robustness).
- Manufacturing plan
- Minimum content: part description (geometry, orientation, tolerances, supports), machine requirements (make/model, AM process type, platform, atmosphere, software version, maintenance and calibration history) and facility requirements.
- Process control document
- Record process variables, procedures followed and building notes to ensure traceability and consistent reporting.
- Measurement and testing plan
- Guidance on selecting applicable test methods and documenting measurement procedures for data comparability.
- Study execution
- Steps include soliciting participants, pilot runs, full‑scale production runs, data handling, statistical analysis and final reporting.
- Data management and record keeping
- Standardized collection, interpretation and retention of RRS data to support conclusions and material/process maturation.
Applications and users
- Who uses this standard
- AM researchers, OEMs, material suppliers, testing labs, engineering teams, and standards bodies conducting multi‑site studies.
- Practical uses
- Quantifying variability in AM parts for design allowables and material data sheets
- Assessing production readiness and process robustness
- Informing maturation of AM technologies and populating engineering databases
- Guiding multi‑participant studies where participants run nominally identical AM processes
Related standards
- ISO/ASTM 52900 (Additive manufacturing - Fundamentals and vocabulary) is normative and provides terminology referenced by this TR.
- Note: An RRS per this TR is explicitly differentiated from inter‑laboratory comparisons used to evaluate measurement method variability.
Keywords: additive manufacturing, round robin testing, RRS, ISO/ASTM TR 52917, manufacturing plan, process control, measurement plan, repeatability, reproducibility, AM variability.
Frequently Asked Questions
CEN ISO/ASTM/TR 52917:2022 is a technical report published by the European Committee for Standardization (CEN). Its full title is "Additive manufacturing - Round robin testing - General guidelines (ISO/ASTM TR 52917:2022)". This standard covers: 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.
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.
CEN ISO/ASTM/TR 52917:2022 is classified under the following ICS (International Classification for Standards) categories: 25.030 - Additive manufacturing. The ICS classification helps identify the subject area and facilitates finding related standards.
You can purchase CEN ISO/ASTM/TR 52917:2022 directly from iTeh Standards. The document is available in PDF format and is delivered instantly after payment. Add the standard to your cart and complete the secure checkout process. iTeh Standards is an authorized distributor of CEN standards.
Standards Content (Sample)
SLOVENSKI STANDARD
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
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
CEN ISO/ASTM/TR
TECHNICAL REPORT
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
© 2022 CEN All rights of exploitation in any form and by any means reserved Ref. No. CEN ISO/ASTM/TR 52917:2022 E
worldwide for CEN national Members.
Contents Page
European foreword . 3
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.
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
ISO/ASTM TR 52917:2022(E)
© ISO/ASTM International 2022
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 2022 – All rights reserved
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
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.
iv
© ISO/ASTM International 2022 – All rights reserved
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.
v
© ISO/ASTM International 2022 – All rights reserved
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
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
01-marec-2023
Dodajalna izdelava - 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
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
CEN ISO/ASTM/TR
TECHNICAL REPORT
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
© 2022 CEN All rights of exploitation in any form and by any means reserved Ref. No. CEN ISO/ASTM/TR 52917:2022 E
worldwide for CEN national Members.
Contents Page
European foreword . 3
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.
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
ISO/ASTM TR 52917:2022(E)
© ISO/ASTM International 2022
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 2022 – All rights reserved
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
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.
iv
© ISO/ASTM International 2022 – All rights reserved
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.
v
© ISO/ASTM International 2022 – All rights reserved
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
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 objective
...
기사 제목: CEN ISO/ASTM/TR 52917:2022 - 가공 산업 - 라운드 로빈 테스트 - 일반 가이드라인 (ISO/ASTM TR 52917:2022) 기사 내용: 이 문서는 라운드 로빈 스터디 (RRS)의 관리에 초점을 맞추고 있으며, RRS 연구의 범위 개발, 계획 및 실행에 대한 지침을 제공할 수 있습니다. RRS 연구를 수행하기 전에 피드스톡, 기계 작업, 공정 제어 및 후속 처리 작업을 식별하는 데도 도움이 될 수 있습니다. RRS 조직자는 연구에서 통제 및 자유 매개 변수를 식별할 수 있습니다. 이 문서는 적용 가능한 검사 방법의 선택과 사용에 대한 지침도 제공할 수 있습니다. RRS는 가공 산업 부품의 변동성을 조사합니다. 연구 결과는 가공 산업 기술의 성숙도를 향상시키는 데 사용될 수 있습니다. 이 문서에서 설명하는 RRS는 여러 사용자가 잘 제어된 아티팩트에서 측정 방법의 변동성을 확인하는 스터디와는 다릅니다.
記事タイトル：CEN ISO/ASTM/TR 52917:2022 - 積層製造- ラウンドロビンテスト- 一般的なガイドライン（ISO/ASTM TR 52917:2022） 記事内容：この文書は、ラウンドロビンスタディ（RRS）の管理に焦点を当て、RRSスタディの範囲開発、計画、実行の指針を提供することができます。スタディを実行する前に、フィードストック、機械操作、プロセス制御、ポストプロセス操作を特定するためのガイドを提供します。RRSの組織者は、スタディ内の制御されたおよび自由なパラメータを特定することができます。この文書は、スタディに適用可能なテスト方法の選択と使用に関するガイドも提供します。RRSは、積層製造パーツの変動を調査します。スタディの結果は、積層製造技術の成熟度を向上させるために活用できます。 この文書で説明されているRRSは、複数のユーザーによる測定方法の変動性を、制御されたアーティファクト上で確認する相互比較とは異なります。
The article discusses the CEN ISO/ASTM/TR 52917:2022, which provides general guidelines for round robin testing in additive manufacturing. The document focuses on the management of the round robin study and offers guidance for scope development, planning, and execution. It helps identify the necessary parameters for the study such as feedstock, machine operations, process controls, and post-processing operations. The document also suggests using test methods that are applicable to the study. The purpose of a round robin study is to investigate variations in additive manufacturing parts, and the findings can be utilized to enhance the maturity of additive manufacturing technologies. It clarifies that a round robin study is distinct from an inter-laboratory comparison, as the former examines the variability in a measurement method by multiple users on a controlled artifact.
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