BS-7568-6-1992 ISO-8021-1986.pdf
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1、BRITISH STANDARD BS 7568-6: 1992 ISO 8021:1986 Press tools Part 6: Round punches with cylindrical head and straight shank Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 11:35:03 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 7568-6:1992 This British Standard, ha
2、ving been prepared under the direction of the Machine, Engineers and Hand Tools Standards Policy Committee, was published under the authority of the Standards Board and comes into effect on 1 May 1992 BSI 10-1999 The following BSI references relate to the work on this standard: Committee reference M
3、TE/12 Draft for comment 84/70328 DC ISBN 0 580 20772 2 Committees responsible for this British Standard The preparation of this British Standard was entrusted by the Machine, Engineers and Hand Tools Standards Policy Committee (MTE/-) to Technical Committee MTE/12, upon which the following bodies we
4、re represented: Advanced Manufacturing Technology Research Institute Amalgamated Engineering Union Gauge and Tool Makers Association Coopted member Amendments issued since publication Amd. No.DateComments Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 11:35:03
5、GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 7568-6:1992 BSI 10-1999i Contents Page Committees responsibleInside front cover National forewordii 1Scope and field of application1 2References1 3Dimensions2 4Material and hardness3 5Designation3 Publication(s) referred toInside back cover Licensed Copy
6、: London South Bank University, London South Bank University, Fri Dec 08 11:35:03 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 7568-6:1992 ii BSI 10-1999 National foreword This Part of BS 7568 has been prepared under the direction of the Machine, Engineers and Hand Tools Standards Policy Committee.
7、 It is identical with ISO 8021:1986 “Round punches with cylindrical head and straight shank”, prepared by Technical Committee ISO/TC29, Small tools, and published by the International Organization for Standardization (ISO). The Technical Committee has reviewed the provisions of ISO 4957:1980 and ISO
8、 8695:19871) to which normative reference is made in the text, and has decided that they are acceptable for use in conjunction with this standard. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct a
9、pplication. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, pages 1 to 4, an inside back cover and a back cover. This standard has been updated (see copyright
10、date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside front cover. Cross-references International StandardCorresponding British Standard 1)ISO 6508:1986 BS 891:1989 Methods for hardness test (Rockwell method) and for verification of hardness test
11、ing machines (Rockwell method) (Technically equivalent) 1) The reference in the text has been now been published. Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 11:35:03 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 7568-6:1992 BSI 10-19991 1 Scope and field of
12、 application This International Standard lays down the basic dimensions and tolerances in millimetres for round punches with cylindrical head and straight shank in the diameter range 1 to 32 mm. It gives materials and hardness as examples, and specifies the designation of punches according to this I
13、nternational 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 References ISO 4957, Tool steels. ISO 6508, Metallic materials Hardness test Rockwell test (scales A B C D E F G
14、H K)2). ISO 8695, Punches Nomenclature and terminology3). 2) At present at the stage of draft. (Revision of ISO/R 80:1968 and ISO 2713:1973.) 3) At present at the stage of draft. Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 11:35:03 GMT+00:00 2006, Uncontroll
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