1、 g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58reduced shankICS 25.120.10Tools for pressing Round punches with 60 conical head and BRITISH STANDAR
2、DBS ISO 9181:2007BS ISO 9181:2007This British Standard was published under the authority of the Standards Policy and Strategy Committee on 28 February 2007 BSI 2007ISBN 978 0 580 50192 0Amendments issued since publicationAmd. No. Date Commentscontract. Users are responsible for its correct applicati
3、on.Compliance with a British Standard cannot confer immunity from legal obligations.National forewordThis British Standard was published by BSI. It is the UK implementation of ISO 9181:2007. It supersedes BS 7568-10:1992 which is withdrawn.The UK participation in its preparation was entrusted to Tec
4、hnical Committee MTE/12, Tools for pressing and moulding.A list of organizations represented on MTE/12 can be obtained on request to its secretary.This publication does not purport to include all the necessary provisions of a Reference numberISO 9181:2007(E)INTERNATIONAL STANDARD ISO9181Second editi
5、on2007-02-01Tools for pressing Round punches with 60 conical head and reduced shankOutillage de presse Poinons ronds tte conique 60 et corps paul BS ISO 9181:2007ii iiiForeword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member
6、 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
7、 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 Directiv
8、es, 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
9、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 9181 was prepared by Technical Committee ISO/TC 29, Small tools, Subcommittee SC
10、8, Tools for pressing and moulding. This second edition cancels and replaces the first edition (ISO 9181:1990), of which it constitutes a minor revision. In particular, the indication of surface textures has been updated in accordance with ISO 1302:2002. BS ISO 9181:2007blank1Tools for pressing Roun
11、d punches with 60 conical head and reduced shank 1 Scope This International Standard specifies the dimensions and tolerances, in millimetres, for round punches with a 60 conical head and reduced shank, having shank diameters D1of 2 mm or 3 mm. It gives examples of materials and hardness, and specifi
12、es the designation of punches which meet the requirements of this International Standard. The main use of punches defined in this International Standard is for punching holes in steel sheet. They may also be used for punching holes in other materials. 2 Dimensions The dimensions of round punches wit
13、h 60 conical head and reduced shank shall conform to the indications of Figure 1 and Table 1. 3 Material and corresponding hardness The material is left to the manufacturers discretion. The following hardness values are given as examples: a) tool steel with 12 % Cr: point: (62 2) HRC head: (45 5) HR
14、C b) high-speed steel: point: (64 2) HRC head: (50 5) HRC 4 Designation A round punch with 60 conical head and reduced shank in accordance with this International Standard shall be designated by: a) “round punch with conical head“; b) a reference to this International Standard, i.e. ISO 9181; c) its
15、 shank diameter, D1; BS ISO 9181:20072 d) its point diameter, D3; e) its total length, l; EXAMPLE The designation for a round punch with 60 conical head and reduced shank, of shank diameter D1= 2 mm, point diameter D3= 0,5 mm and total length l = 71 mm is as follows: Round punch with conical head IS
16、O 9181 2 0,5 71 Surface roughness values in micrometres aRadius. Figure 1 Round punches with 60 conical head and reduced shank Table 1 Dimensions of round punches with 60 conical head and reduced shank D1D3D2l h6 j6 0,50+71 80 2 3 0,5 u D3u 1,6 1,4 u D3u 2,9 3 4,5 BS ISO 9181:20073Bibliography 1 ISO
17、 1302:2002, Geometrical Product Specifications (GPS) Indication of surface texture in technical product documentation 2 ISO 4957:1999, Tool steels 3 ISO 6508:2005 (all parts), Metallic materials Rockwell hardness test 4 ISO 6752:1), Tools for pressing Round punches with 60 conical head and straight
18、shank 5 ISO 8695:1987, Tools for pressing Punches Nomenclature and terminology 1) To be publisched. (Revision of ISO 6752:1984) BS ISO 9181:2007BS ISO BSI389 Chiswick High RoadLondonW4 4AL9181:2007BSI British Standards InstitutionBSI is the independent national body responsible for preparing British
19、 Standards. It presents the UK view on standards in Europe and at the international level. It is incorporated by Royal Charter.RevisionsBritish Standards are updated by amendment or revision. Users of British Standards should make sure that they possess the latest amendments or editions.It is the co
20、nstant aim of BSI to improve the quality of our products and services. We would be grateful if anyone finding an inaccuracy or ambiguity while using this British Standard would inform the Secretary of the technical committee responsible, the identity of which can be found on the inside front cover.
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