BS ISO 27547-1-2010 Plastics Preparation of test specimens of thermoplastic materials using mouldless technologies General principles and laser sintering of test specimens《塑料 使用无模工.pdf
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1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS ISO 27547-1:2010Plastics Preparation of testspecimens of thermoplasticmaterials using mouldlesstechnologiesPart 1: General principles, and lasersintering of test specimensBS I
2、SO 27547-1:2010 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of ISO 27547-1:2010.The UK participation in its preparation was entrusted to TechnicalCommittee PRI/82, Thermoplastic materials.A list of organizations represented on this committee can beobtained on requ
3、est to its secretary.This publication does not purport to include all the necessaryprovisions of a contract. Users are responsible for its correctapplication. BSI 2010ISBN 978 0 580 58173 1ICS 83.080.20Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Stand
4、ard was published under the authority of theStandards Policy and Strategy Committee on 30 November 2010.Amendments issued since publicationDate Text affectedBS ISO 27547-1:2010Reference numberISO 27547-1:2010(E)ISO 2010INTERNATIONAL STANDARD ISO27547-1First edition2010-09-15Plastics Preparation of t
5、est specimens of thermoplastic materials using mouldless technologies Part 1: General principles, and laser sintering of test specimens Plastiques Prparation des prouvettes de matriaux thermoplastiques par des techniques sans moule Partie 1: Principes gnraux, et frittage laser des prouvettes BS ISO
6、27547-1:2010ISO 27547-1:2010(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobes licensing policy, this file may be printed or viewed but shall not be edited unless the typefaces which are embedded are licensed to and installed on the computer performing the edi
7、ting. In downloading this file, parties accept therein the responsibility of not infringing Adobes licensing policy. The ISO Central Secretariat accepts no liability in this area. Adobe is a trademark of Adobe Systems Incorporated. Details of the software products used to create this PDF file can be
8、 found in the General Info relative to the file; the PDF-creation parameters were optimized for printing. Every care has been taken to ensure that the file is suitable for use by ISO member bodies. In the unlikely event that a problem relating to it is found, please inform the Central Secretariat at
9、 the address given below. COPYRIGHT PROTECTED DOCUMENT ISO 2010 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from e
10、ither ISO at the address below or ISOs member body in the country of the requester. ISO copyright office Case postale 56 CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail copyrightiso.org Web www.iso.org Published in Switzerland ii ISO 2010 All rights reservedBS ISO 27547-1:2010I
11、SO 27547-1:2010(E) ISO 2010 All rights reserved iiiContents Page Foreword iv Introduction.v 1 Scope1 2 Normative references1 3 Terms and definitions .1 4 Apparatus.4 4.1 Test specimens4 4.2 Laser-sintering machine.4 5 Procedure.4 5.1 Conditioning of the material.4 5.2 Laser sintering.4 5.3 Post-trea
12、tment of specimens .5 6 Report on test-specimen preparation .6 Annex A (informative) Laser-sintering parameters .7 Annex B (informative) Laser beam radius 9 Bibliography11 BS ISO 27547-1:2010ISO 27547-1:2010(E) iv ISO 2010 All rights reservedForeword ISO (the International Organization for Standardi
13、zation) 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 b
14、e 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. International Standa
15、rds are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2. The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an Inter
16、national Standard requires approval by at least 75 % of the member bodies casting a vote. 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. ISO 27547-1
17、 was prepared by Technical Committee ISO/TC 61, Plastics, Subcommittee SC 9, Thermoplastic materials. ISO 27547 consists of the following part, under the general title Plastics Preparation of test specimens of thermoplastic materials using mouldless technologies: Part 1: General principles, and lase
18、r sintering of test specimens Further parts are planned covering other mouldless technologies. BS ISO 27547-1:2010ISO 27547-1:2010(E) ISO 2010 All rights reserved vIntroduction Many factors in a mouldless specimen-preparation process can influence the properties of the test specimens prepared and he
19、nce the measured values obtained when the specimens are used in a test method. The mechanical properties of such specimens are in fact strongly dependent on the conditions of the process used to prepare the specimens. Exact definition of each of the main parameters of the process is a basic requirem
20、ent for reproducible operating conditions. It is important in defining specimen-preparation conditions to consider any influence the conditions could have on the properties to be determined. Specimens prepared by mouldless techniques could show differences in molecular morphology (as with crystallin
21、e and semicrystalline polymers), differences in powder morphology (after undergoing a sintering process, for instance), differences in thermal history and differences in thickness of the layers used to prepare the specimen. Each of these will have to be controlled to avoid differences in the values
22、of the properties measured. BS ISO 27547-1:2010BS ISO 27547-1:2010INTERNATIONAL STANDARD ISO 27547-1:2010(E) ISO 2010 All rights reserved 1Plastics Preparation of test specimens of thermoplastic materials using mouldless technologies Part 1: General principles, and laser sintering of test specimens
23、1 Scope This part of ISO 27547 specifies the general principles of test-specimen preparation using mouldless techniques. Sometimes, these techniques are called “tool-less” methods. Common to all these techniques is the fact that the specimens are produced layer by layer. The shape and dimensions of
24、the specimens are defined in terms of a numerical description using CAD techniques. This computer model of the specimen is “sliced” into layers by means of suitable software. The specimen-preparation process then builds up the specimens automatically, layer by layer, using the computer model and a s
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