1、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 shankThis British Standard was published under the authority of the Standards Policy and Strategy Committe
2、e on 3 2008 BSI 2008 ISBN 978 0 580 57365 1 Amendments/corrigenda issued since publication Date Comments 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 It supersedes BS 7568-7:1992 which is withdrawn.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 en
3、trusted 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 ap
4、plication. Compliance with a British Standard cannot confer immunity from legal obligations. 0 SeptemberBS ISO 6752:2008Reference number ISO 6752:2008(E) ISO 2008INTERNATIONAL STANDARD ISO 6752 Second edition 2008-06-15 Tools for pressing Round punches with 60 degrees conical head and straight shank
5、 Outillage de presse Poinons tte conique 60 degrs et corps cylindrique BS ISO 6752:2008 ISO 6752:2008(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
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10、lished in Switzerland ii ISO 2008 All rights reservedBS 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 St
11、andards 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
12、 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 committee
13、s 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 possib
14、ility 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
15、edition cancels and replaces the first edition (ISO 6752:1984), which has been technically revised. BS ISO 6752:2008BS 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 In
16、ternational 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 ste
17、el 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 (inclu
18、ding 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
19、1. General tolerance: ISO 2768-m Surface roughness values in micrometres Figure 1 Round punches with 60 conical head and straight shank BS ISO 6752:2008 ISO 6752:2008(E) 2 ISO 2008 All rights reservedTable 1 Dimensions of round punches with 60 conical head and straight shank L 0,5 0 +D 1 h6 D 2H 0,2
20、 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
21、+ BS ISO 6752:2008 ISO 6752:2008(E) ISO 2008 All rights reserved 3 Table 1 (continued) L 0,5 0 +D 1 h6 D 2H 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
22、,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 + BS ISO 6752:2008 ISO 6752:2008(E) 4 ISO 2008 All rights reservedTable 1 (continued) L 0,5 0 +D 1 h6 D 2H 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
23、,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 + BS ISO 6752:2008 ISO 6752:2008(E) ISO 2008 All rights reserved 5 4 Material and hardness The
24、 material is left to the manufacturers 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
25、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, D 1 , in millimetres; d) its length, L, in millimetres. EXAMPLE Punch ISO 6752 - 6,3 80 BS ISO 6752:2008 ISO 6752:2008
26、(E) ICS 25.120.10 Price based on 5 pages ISO 2008 All rights reserved BS ISO 6752:2008 This page has been intentionally left blankBS 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 standards BSI - British Standards Inst
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