1、BSI Standards Publication BS ISO 7755-12:2013 Hardmetal burrs Part 12: Inverted cone burrs (style N)BS ISO 7755-12:2013 BRITISH STANDARD National foreword This British Standard is the UK implementation of ISO 7755-12:2013. The UK participation in its preparation was entrusted to Technical Committee
2、MTE/18, Tools tips and inserts for cutting applications. A list of organizations represented on this committee can be obtained on request to its secretary. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. The
3、British Standards Institution 2013. Published by BSI Standards Limited 2013 ISBN 978 0 580 80979 8 ICS 25.100.20 Compliance with a British Standard cannot confer immunity from legal obligations. This British Standard was published under the authority of the Standards Policy and Strategy Committee on
4、 31 August 2013. Amendments issued since publication Date Text affectedBS ISO 7755-12:2013 ISO 2013 Hardmetal burrs Part 12: Inverted cone burrs (style N) Fraises-limes en mtaux-durs Partie 12: Fraises-limes cne inverse (forme N) INTERNATIONAL STANDARD ISO 7755-12 Second edition 2013-08-15 Reference
5、 number ISO 7755-12:2013(E)BS ISO 7755-12:2013ISO 7755-12:2013(E)ii ISO 2013 All rights reserved COPYRIGHT PROTECTED DOCUMENT ISO 2013 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form or by any means, electronic or mecha
6、nical, 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 ISOs member body in the country of the requester. ISO copyright office Case postale 56 CH-1211 Geneva 20 Tel. + 41 22 749 01
7、 11 Fax + 41 22 749 09 47 E-mail copyrightiso.org Web www.iso.org Published in SwitzerlandBS ISO 7755-12:2013ISO 7755-12:2013(E) ISO 2013 All rights reserved iii Contents Page Foreword iv 1 Scope . 1 2 Normative references 1 3 Dimensions . 1 Annex A (informative) Relationship between designations in
8、 this part of ISO 7755 and the ISO 13399 series . 2 Bibliography 3BS ISO 7755-12:2013ISO 7755-12:2013(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 norm
9、ally 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 t
10、he 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 th
11、e 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. www.iso.org/directives Attention is drawn to the possibility that some of the elements of this document m
12、ay 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. www.iso.org/patents
13、Any trade name used in this document is information given for the convenience of users and does not constitute an endorsement. The committee responsible for this document is ISO/TC 29, Small tools, Subcommittee SC 9, Tools with cutting edges made of hard cutting materials. This second edition cancel
14、s and replaces the first edition (ISO 7755-12:1984), of which it constitutes a minor revision. ISO 7755 consists of the following parts, under the general title Hardmetal burrs: Part 1: General specifications Part 2: Cylindrical burrs (style A) Part 3: Cylindrical round- (ball-) nose burrs (style C)
15、 Part 4: Spherical burrs (style D) Part 5: Oval burrs (style E) Part 6: Arch round- (ball-) nose burrs (style F) Part 7: Arch pointed-nose burrs (style G) Part 8: Flame burrs (style H) Part 9: 60 and 90 cone burrs (styles J and K) Part 10: Conical round- (ball-) nose burrs (style L) Part 11: Conical
16、 pointed-nose burrs (style M) Part 12: Inverted cone burrs (style N)iv ISO 2013 All rights reservedBS ISO 7755-12:2013INTERNATIONAL ST ANDARD ISO 7755-12:2013(E) Hardmetal burrs Part 12: Inverted cone burrs (style N) 1 Scope This part of ISO 7755 specifies the main dimensions of the cutting part for
17、 hardmetal burrs of inverted cone shape and designated by the symbol N. Tolerances on the cutting diameter, direction of helix and cut, diameter and length of the cylindrical shank and designation of burrs are dealt with in ISO 7755-1. 2 Normative references The following documents, in whole or in p
18、art, 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 7755-1, Hardmetal burrs Part 1: General spec
19、ifications 3 Dimensions See Figure 1 and Table 1. Tolerances on the cutting diameter, direction of helix and cut, diameter and length of the cylindrical shank and designation of burrs are specified in ISO 7755-1. Figure 1 Hardmetal burr, style N Table 1 Dimensions Dimensions in millimetres d l = 10
20、= 20 = 30 3 7 6 7 12 13 13 16 16 13 ISO 2013 All rights reserved 1BS ISO 7755-12:2013ISO 7755-12:2013(E) Annex A (informative) Relationship between designations in this part of ISO 7755 and the ISO 13399 series For the relationship between designations in this part of ISO 7755 and preferred symbols
21、according to the ISO 13399 series, see Table A.1. Table A.1 Relationship between designations in this part of ISO 7755 and the ISO 13399 series Symbol in this part of ISO 7755 (ISO 7755-12) Reference in this part of ISO 7755 (ISO 7755-12) Property name in the ISO 13399 series Symbol in the ISO 13399
22、 series Reference in the ISO 13399 series d Clause 3 Cutting diameter DC ISO/TS 13399-3 71D084653E57F l Clause 3 Cutting edge length L ISO/TS 13399-3 71DD6C95DA49B Clause 3 Tape angle TA ISO/TS 13399-3 71EAC4A2B65442 ISO 2013 All rights reservedBS ISO 7755-12:2013ISO 7755-12:2013(E) Bibliography 1 I
23、SO 13399 (all parts), Cutting tool data representation and exchange ISO 2013 All rights reserved 3BS ISO 7755-12:2013ISO 7755-12:2013(E) ISO 2013 All rights reserved IC S 25.100.20 Price based on 3 pagesThis page deliberately left blankBSI is the national body responsible for preparing British Stand
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