1、December 2016 English price group 10No part of this translation may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).ICS 25.030!%l“2599173www.din.deDIN
2、EN ISO 17296-2Additive manufacturing General principles Part 2: Overview of process categories and feedstock (ISO 172962:2015);English version EN ISO 172962:2016,English translation of DIN EN ISO 17296-2:2016-12Additive Fertigung Grundlagen Teil 2: berblick ber Prozesskategorien und Ausgangswerkstof
3、fe (ISO 172962:2015);Englische Fassung EN ISO 172962:2016,Englische bersetzung von DIN EN ISO 17296-2:2016-12Fabrication additive Principes gnraux Partie 2: Vue densemble des catgories de procds et des matires premires (ISO 172962:2015);Version anglaise EN ISO 172962:2016,Traduction anglaise de DIN
4、EN ISO 17296-2:2016-12www.beuth.deDocument comprises 15 pagesDTranslation by DIN-Sprachendienst.In case of doubt, the German-language original shall be considered authoritative.01.17 DIN EN ISO 17296-2:2016-12 2 A comma is used as the decimal marker. National foreword The text of ISO 17296-2:2015 ha
5、s been prepared by Technical Committee ISO/TC 261 “Additive manufacturing” and has been taken over as EN ISO 17296-2:2016 by Technical Committee CEN/TC 438 “Additive Manufacturing” (Secretariat: AFNOR, France). The responsible German body involved in its preparation was DIN-Normenausschuss Werkstoff
6、technologie (DIN Standards Committee Technology of Materials), Working Committee NA 145-04-01 AA Additive Fertigung. For the purposes of ordering ISO 17296-1 referred to in ISO 17296-2, it should be noted that the standard has not been published as an International Standard under this number, but as
7、 ISO/ASTM 52900. EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 17296-2 September 2016 ICS 25.040.20 English Version Additive manufacturing - General principles - Part 2: Overview of process categories and feedstock(ISO 17296-2:2015) Fabrication additive - Principes gnraux - Partie 2: Vue
8、densemble des catgories de procds et des matires premires (ISO 17296-2:2015) Additive Fertigung - Grundlagen - Teil 2: berblick ber Prozesskategorien und Ausgangswerkstoffe(ISO 17296-2:2015) This European Standard was approved by CEN on 29 August 2016. CEN members are bound to comply with the CEN/CE
9、NELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre
10、 or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the o
11、fficial versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlan
12、ds, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2016 CEN All rights
13、of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 17296-2:2016 EContents PageEuropean foreword .3Introduction 51 Scope . 62 Normative references 63 Terms and definitions . 64 Part types and their classification 64.1 General . 64.2 Classificatio
14、n of parts 65 Process chains . 76 Process categories 76.1 General . 76.2 Existing process categories 86.2.1 Vat photopolymerization 86.2.2 Material jetting 86.2.3 Binder jetting 96.2.4 Powder bed fusion . 106.2.5 Material extrusion . 116.2.6 Directed energy deposition . 116.2.7 Sheet lamination . 13
15、DIN EN ISO 17296-2:2016-12EN ISO 17296-2:2016 (E)2Foreword .4European foreword The text of ISO 17296-2:2015 has been prepared by Technical Committee ISO/TC 261 “Additive manufacturing” of the International Organization for Standardization (ISO) and has been taken over as EN ISO 17296-2:2016 by Techn
16、ical Committee CEN/TC 438 “Additive Manufacturing” the secretariat of which is held by AFNOR. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by March 2017, and conflicting national standards shall b
17、e withdrawn at the latest by March 2017. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. According to the CEN-CENELEC Internal Regulat
18、ions, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Ital
19、y, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. Endorsement notice The text of ISO 17296-2:2015 has been approved by CEN as EN ISO 17296-2:2016 without any modification. DIN EN ISO
20、 17296-2:2016-12EN ISO 17296-2:2016 (E)3 ForewordISO (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 bo
21、dy 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 Electrot
22、echnical 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 IS
23、O 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 res
24、ponsible 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 give
25、n for the convenience of users and does not constitute an endorsement.For an explanation on the meaning of ISO specific terms and expressions related to conformity assessment, as well as information about ISOs adherence to the WTO principles in the Technical Barriers to Trade (TBT) see the following
26、 URL: Foreword - Supplementary informationThe committee responsible for this document is ISO/TC 261, Additive manufacturing.ISO 17296 consists of the following parts, under the general title Additive manufacturing General principles: Part 1: Terminology1) Part 2: Overview of process categories, part
27、 types and feedstock Part 3: Main characteristics and corresponding test methods Part 4: Overview of data processing1) To be published.DIN EN ISO 17296-2:2016-12EN ISO 17296-2:2016 (E)4 IntroductionAdditive manufacturing is a versatile technology that can be used throughout the product development p
28、rocess. The additive manufacturing processes can be used to manufacture prototypes, tool and fully functional end-use parts. In addition to engineering, the application areas of this interdisciplinary technology now include fields ranging from e.g. architecture and medicine, to archaeology and carto
29、graphy, as well as arts, toys, education, entertainment.During its somewhat turbulent development, different terms and definitions have emerged which are frequently ambiguous and confusing. Moreover, there are various different processes available on the market and it is not always clear what opport
30、unities and limitations they offer in terms of application.This part of ISO 17296 aims to offer a description of the general working principles for the different process categories and the processing of feedstock material into the desired product geometry. This will enhance the understanding of the
31、process and improve the communication between the customer and suppliers of products and services.The principles and process categories described in this part of ISO 17296 refer to commercially available technology that has proven practically useful and viable on the market for several years.DIN EN
32、ISO 17296-2:2016-12EN ISO 17296-2:2016 (E)5 1 ScopeThis part of ISO 17296 describes the process fundamentals of Additive Manufacturing (AM). It also gives an overview of existing process categories, which are not and cannot be exhaustive due to the development of new technologies. This part of ISO 1
33、7296 explains how different process categories make use of different types of materials to shape a products geometry. It also describes which type of material is used in different process categories. Specification of feedstock material and requirements for the parts produced by combinations of diffe
34、rent processes and feedstock material will be given in subsequent separate standards and are therefore not covered by this part of ISO 17296. This part of ISO 17296 describes the overreaching principles of these subsequent standards.2 Normative referencesThe following documents, in whole or in part,
35、 are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.ISO 17296-1, Additive manufacturing General principle
36、s Part 1: Terminology2)3 Terms and definitionsFor the purposes of this document, the terms and definitions given in ISO 17296-1 apply.4 Part types and their classification4.1 GeneralParts produced by additive manufacturing can be used as both prototypes and production parts (the term “prototype” is
37、described in ISO 17296-1). Production parts are used for different applications at the end of the product development (cycle) and reflect all requirements of the desired product. For both prototypes and production parts, different processes and materials can be used depending on the type of the part
38、, application and industry, and cost and delivery time requirements. It is the responsibility of the developer to design the parts and to decide on their specification. Close consultation with the component manufacturer is advisable, depending on the customers expertise.4.2 Classification of partsPa
39、rts shall further be divided into different classes, from the most rigorous class regarding quality and traceability (class 1) to the least rigorous class regarding quality and traceability. The details of these classes will be defined in specific further standards related to the feedstock, process
40、and application.2) To be published.DIN EN ISO 17296-2:2016-12EN ISO 17296-2:2016 (E)6 5 Process chainsThe process chain involved in additive manufacturing technologies is characterized by direct fabrication of parts based on 3D CAD data. Intermediate stages, such as tool manufacturing, are unnecessa
41、ry.There are basically two different categories: single-step processes: parts are fabricated in a single operation where the basic geometric shape and basic material properties of the intended product are achieved simultaneously, multi-step processes: parts are fabricated in two or more operations w
42、here the first typically provides the basic geometric shape and the following consolidates the part to the intended basic material properties.NOTE Dependent on the final application, all processes can require one or more additional post-processing operations to reach all the intended properties in t
43、he final product.The technologies involved are well-known and well documented non-additive processes and therefore it is unnecessary to describe them in further detail at this stage.6 Process categories6.1 GeneralThere are multiple processes developed for additive manufacturing. These are grouped in
44、to seven basic categories based on fundamental parts of the machines functionality.In subsequent standards, detailed information and requirements for specific feedstock-process combinations (for example PA12 powder via powder bed fusion) will be given, such as: Information on fundamental properties
45、of the feedstock, Requirements on feedstock (pre-conditioning), Informative process description, For each specific feedstock/process combination the relevant properties of parts (such as gas permeability, tensile strength etc.), including requirements of minimal values and information on feasible ra
46、nges of values, Required quantification methods, Information on typical applications.DIN EN ISO 17296-2:2016-12EN ISO 17296-2:2016 (E)7 6.2 Existing process categories6.2.1 Vat photopolymerizationThe definition of Vat photopolymerization according to ISO 17296-1: additive manufacturing process in wh
47、ich liquid photopolymer in a vat is selectively cured by light-activated polymerization. See Figure 1.a) Vat photopolymerization by laser light sourceb) Vat photopolymerization by controlled area light sourceKey1 energy light source 6 vat filled with liquid photocurable resin2 tilted mirror with foc
48、us 7 transparent plates3 build platform and elevator 8 photo mask4 support structure 9 recoating and surface levelling mechanism5 productFigure 1 Schematic diagram of two alternative principles for vat photopolymerizationFeedstock: liquid or paste: photoreactive resin with or without filler.Binding mechanism: chemical reaction bonding.Source of activat
