BS-ISO-6752-2008.pdf

BS ISO 6752:2008 ICS 25.120.10 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW BRITISH STANDARD Tools for pressing Round punches with 60 degrees conical head and straight shank Licensed CopyChinese University of Hong Kong, 21/10/2008 04:29, Uncontrolled Copy, (c) BSI This British Standard was published under the authority of the Standards Policy and Strategy Committee on 3 2008 © BSI 2008 ISBN 978 0 580 57365 1 Amendments/corrigenda issued since publication DateComments BS ISO 6752:2008 National foreword This British Standard is the UK implementation of ISO 6752:2008. It supersedes BS 7568-7:1992 which is withdrawn. The UK participation in its preparation was entrusted to Technical Committee MTE/12, Tools for pressing and moulding. 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. Compliance with a British Standard cannot confer immunity from legal obligations. 0 September Licensed CopyChinese University of Hong Kong, 21/10/2008 04:29, Uncontrolled Copy, (c) BSI BS ISO 6752:2008 Reference number ISO 6752:2008(E) © ISO 2008 INTERNATIONAL STANDARD ISO 6752 Second edition 2008-06-15 Tools for pressing Round punches with 60 degrees conical head and straight shank Outillage de presse Poinçons à tête conique à 60 degrés et corps cylindrique Licensed CopyChinese University of Hong Kong, 21/10/2008 04:29, Uncontrolled Copy, (c) BSI BS ISO 6752:2008 ISO 6752:2008(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobe's 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 editing. In downloading this file, parties accept therein the responsibility of not infringing Adobe's 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 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 the address given below. COPYRIGHT PROTECTED DOCUMENT © ISO 2008 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 either ISO at the address below or ISO's 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 2008 All rights reserved Licensed CopyChinese University of Hong Kong, 21/10/2008 04:29, Uncontrolled Copy, (c) BSI BS ISO 6752:2008 ISO 6752:2008(E) © ISO 2008 All rights reserved iii 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. International Standards 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 International 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 6752 was prepared by Technical Committee ISO/TC 29, Small tools, Subcommittee SC 8, Tools for pressing and moulding. This second edition cancels and replaces the first edition (ISO 6752:1984), which has been technically revised. Licensed CopyChinese University of Hong Kong, 21/10/2008 04:29, Uncontrolled Copy, (c) BSI BS ISO 6752:2008 Licensed CopyChinese University of Hong Kong, 21/10/2008 04:29, Uncontrolled Copy, (c) BSI BS ISO 6752:2008 INTERNATIONAL STANDARD ISO 6752:2008(E) © ISO 2008 All rights reserved 1 Tools for pressing Round punches with 60 degrees conical head and straight shank 1 Scope This International Standard specifies the basic dimensions, in millimetres, of round punches with 60° conical head and straight shank in the diameter range of 0,5 mm to 20 mm. It gives example material and hardness values, and specifies the designation of the punches, whose main use is punching holes in steel sheets but that can also be used on other materials. 2 Normative references The following referenced documents are indispensable for the application 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 2768-1:1989, General tolerances Part 1: Tolerances for linear and angular dimensions without individual tolerance indications 3 Dimensions The dimensions of round punches with 60° conical head and straight shank shall conform to the indications of Figure 1 and Table 1. General tolerance: ISO 2768-m Surface roughness values in micrometres Figure 1 Round punches with 60° conical head and straight shank Licensed CopyChinese University of Hong Kong, 21/10/2008 04:29, Uncontrolled Copy, (c) BSI BS ISO 6752:2008 ISO 6752:2008(E) 2 © ISO 2008 All rights reserved Table 1 Dimensions of round punches with 60° conical head and straight shank L 0,5 0 + D1 h6 D2 H 0,2 0 + r 71 80 100 0,50 0,9 × × × 0,55 1,0 × × × 0,60 1,1 × × × 0,65 1,2 × × × 0,70 1,3 × × × 0,75 1,3 0,2 × × × 0,80 1,4 × × × 0,85 1,4 × × × 0,90 1,6 × × × 0,95 1,6 0,4 0,2 0,2 0 + × × × 1,0 1,8 × × × 1,1 1,8 × × × 1,2 2,0 × × × 1,3 2,0 × × × 1,4 2,2 × × × 1,5 2,2 × × × 1,6 2,5 × × × 1,7 2,5 × × × 1,8 2,8 × × × 1,9 2,8 × × × 2,0 3,0 × × × 2,1 3,2 × × × 2,2 3,2 × × × 2,3 3,5 × × × 2,4 3,5 × × × 2,5 3,5 × × × 2,6 4,0 × × × 2,7 4,0 × × × 2,8 4,0 × × × 2,9 4,0 0,5 0,4 0,3 0 + × × × Licensed CopyChinese University of Hong Kong, 21/10/2008 04:29, Uncontrolled Copy, (c) BSI BS ISO 6752:2008 ISO 6752:2008(E) © ISO 2008 All rights reserved 3 Table 1 (continued) L 0,5 0 + D1 h6 D2 H 0,2 0 + r 71 80 100 3,0 4,5 × × × 3,1 4,5 × × × 3,2 4,5 × × × 3,3 4,5 × × × 3,4 4,5 × × × 3,5 5,0 × × × 3,6 5,0 × × × 3,7 5,0 × × × 3,8 5,0 × × × 3,9 5,0 × × × 4,0 5,5 × × × 4,1 5,5 × × × 4,2 5,5 × × × 4,3 5,5 × × × 4,4 5,5 × × × 4,5 6,0 × × × 4,6 6,0 × × × 4,7 6,0 × × × 4,8 6,0 × × × 4,9 6,0 × × × 5,0 6,5 × × × 5,1 6,5 × × × 5,2 6,5 × × × 5,3 6,5 × × × 5,4 6,5 × × × 5,5 7,0 × × × 5,6 7,0 × × × 5,7 7,0 × × × 5,8 7,0 × × × 5,9 7,0 × × × 6,0 8,0 0,5 0,6 0,4 0 + × × × Licensed CopyChinese University of Hong Kong, 21/10/2008 04:29, Uncontrolled Copy, (c) BSI BS ISO 6752:2008 ISO 6752:2008(E) 4 © ISO 2008 All rights reserved Table 1 (continued) L 0,5 0 + D1 h6 D2 H 0,2 0 + r 71 80 100 6,1 8,0 × × × 6,2 8,0 × × × 6,3 8,0 × × × 6,4 8,0 0,5 × × × 6,5 9,0 × × × 7,0 9,0 × × × 7,5 10,0 × × × 8,0 10,0 × × × 8,5 11,0 × × × 9,0 11,0 × × × 9,5 12,0 × × × 10,0 12,0 × × × 10,5 13,0 × × × 11,0 13,0 × × × 11,5 14,0 × × × 12,0 14,0 × × × 12,5 15,0 × × × 13,0 15,0 1 1 0,5 0 + × × × 13,5 16,0 × × × 14,0 16,0 × × × 14,5 17,0 × × × 15 17,0 × × × 15,5 18,0 × × × 16,0 18,0 × × × 17,0 19,0 × × × 18,0 20,0 × × × 19,0 21,0 × × × 20,0 22,0 1,5 1,5 0,5 0 + × × × Licensed CopyChinese University of Hong Kong, 21/10/2008 04:29, Uncontrolled Copy, (c) BSI BS ISO 6752:2008 ISO 6752:2008(E) © ISO 2008 All rights reserved 5 4 Material and hardness The material is left to the manufacturer's discretion. The following hardness values are given as examples. a) Alloyed cold work steel with 5 % to 12 % Cr: point: (60 ± 2) HRC; head: (45 ± 5) HRC. b) High-speed steel: point: (62 ± 2) HRC; head: (52 ± 5) HRC. 5 Designation A round punch with 60° conical head and straight shank in accordance with this International Standard shall be designated by: a) “Punch”; b) reference to this International Standard, i.e. ISO 6752; c) its points diameter, D1, in millimetres; d) its length, L, in millimetres. EXAMPLE Punch ISO 6752 - 6,3 × 80 Licensed CopyChinese University of Hong Kong, 21/10/2008 04:29, Uncontrolled Copy, (c) BSI BS ISO 6752:2008 ISO 6752:2008(E) ICS 25.120.10 Price based on 5 pages © ISO 2008 All rights reserved Licensed CopyChinese University of Hong Kong, 21/10/2008 04:29, Uncontrolled Copy, (c) BSI BS ISO 6752:2008 This page has been intentionally left blank Licensed CopyChinese University of Hong Kong, 21/10/2008 04:29, Uncontrolled Copy, (c) BSI BS ISO 6752:2008 BSI Group Headquarters 389 Chiswick High Road, London, W4 4AL, UK Tel +44 (0)20 8996 9001 Fax +44 (0)20 8996 7001 www.bsigroup.com/ standards BSI - British Standards Institution BSI is the independent national body responsible for preparing British Standards. It presents the UK view on standards in Europe and at the international level. It is incorporated by Royal Charter. Revisions British Standards are updated by amendment or revision. 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