BS 1296-4-1978 Specification for single point cutting tools - Ground high speed steel tool bits《单刃刀具规范 第4部分 磨制高速钢刀片》.pdf

1、BRITISH STANDARD BS 1296-4: 1978 Specification for Single point cutting tools Part 4: Ground high speed steel tool bits UDC 621.9.025:669.14.018.252.3BS1296-4:1978 This British Standard, having been prepared under the directionof the Mechanical Engineering Standards Committee, was published underthe

2、 authority of the Executive Board on 31January1978 BSI 02-2000 The following BSI references relate to the work on this standard: Committee reference MEE/83 Draft for comment 76/72749 ISBN 0 580 09898 2 Cooperating organizations The Mechanical Engineering Standards Committee, under whose direction th

3、is British Standard was prepared, consists of representatives from the following Government departments and scientific and industrial organizations: Associated Offices Technical Committee Department of Trade (Marine Division) Association of Consulting Engineers Department of Transport Association of

4、 Hydraulic Equipment Electricity Supply Industry in England and Manufacturers Wales Association of Mining Electrical and Engineering Equipment Users Association Mechanical Engineers Federation of Manufacturers of Construction British Compressed Air Society Equipment and Cranes British Electrical and

5、 Allied Manufacturers Health and Safety Executive Association (BEAMA) Institution of Gas Engineers British Gas Corporation Institution of Mechanical Engineers British Gear Manufacturers Association Institution of Plant Engineers British Internal Combustion Engine Institution of Production Engineers

6、Manufacturers Association London Transport Executive British Pump Manufacturers Association Machine Tool Trades Association* British Steel Corporation* Ministry of Defence* Chartered Institution of Building Services National Coal Board Crown Agents for Oversea Governments and Process Plant Associati

7、on Administrations Railway Industry Association of Great Britain Department of the Environment Telecommunication Engineering and Department of Industry, Mechanical Manufacturing Association (TEMA) Engineering The Society of Motor Manufacturers and Department of Industry, National Engineering Traders

8、 Limited Laboratory Water-tube Boilermakers Association The organizations marked with an asterisk in the above list, together with the following, were directly represented on the committee entrusted with the preparation of this British Standard: High Speed Steel Tool Kit Association Welding Manufact

9、urers Association Welded Tool Manufacturers Association Amendments issued since publication Amd. No. Date of issue CommentsBS1296-4:1978 BSI 02-2000 i Contents Page Cooperating organizations Inside front cover Foreword ii 1 Scope 1 2 References 1 3 Round section tool bits 1 4 Square section tool bit

10、s 1 5 Rectangular section tool bits 2 Publications referred to Inside back coverBS1296-4:1978 ii BSI 02-2000 Foreword This Part of this British Standard has been prepared under the direction of the Mechanical Engineering Standards Committee. It relates solely to dimensions and tolerances for ground

11、high speed steel tool bits and is essentially based on ISO5421:1977. It differs from ISO5421 with regard to tolerances for round sections, where the British Standard shows a tolerance of h12, when the ISO standard requirement is h9. It also differs with regard to the tolerance on the length of the t

12、hree types of tool bit inasmuch as the ISO standard shows 2mm against+0,3mm for the British Standard. Further differences occur where the British Standard permits square section tool bits to have slanted ends and does not include trapezoidal sections, which are dealt with in the ISO standard. A Brit

13、ish Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a fron

14、t cover, an inside front cover, pagesi andii, pages1 and 2, an inside back cover and a back cover. This standard has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside front cover.BS1296-4:1978 BSI 02-2000 1 1 Scope

15、 This Part of this British Standard relates to ground high speed steel tool bits and specifies dimensions and tolerances for tool bits with round, square or rectangular sections. 2 References The titles of the publications referred to in this standard are listed on the inside back cover. 3 Round sec

16、tion tool bits The following are dimensions and tolerances for tool bits with round sections. 4 Square section tool bits The following are dimensions and tolerances for tool bits with square sections. d h12 a 63 80 100 160 200 4 X X X 5 X X X 6 X X X X 8 X X X 10 X X X X 12 X X X 16 X X X 20 X a See

17、 BS4500-1:1969 L +0 3 b h13 a h h13 a 63 80 100 160 200 4 4 X 5 5 X 6 6 X X X X X 8 8 X X X X X 10 10 X X X X X 12 12 X X X X X 16 16 X X X 20 20 X X 25 25 X NOTEThese tool bits may be supplied with slanted ends as indicated above. a See BS4500-1:1969 L +0 3BS1296-4:1978 2 BSI 02-2000 5 Rectangular

18、section tool bits The following are dimensions and tolerances for tool bits with rectangular sections. b h13 a h h13 a 100 160 200 4 6 X 8 X 5 8 X 10 X 6 10 X X 12 X X 8 12 X X 16 X X 10 16 X X 20 X X 12 20 X X 25 X 16 25 X Second choice dimensions are as follows. Dimensions are in millimetres. b h1

19、3 a h h13 a 6 4 14 10 140 120 a See BS4500-1:1969 L +0 3 L +0 3BS1296-4:1978 BSI 02-2000 Publications referred to BS4500, ISO limits and fits. BS4500-1, General, tolerances and deviations. ISO5421, Ground high speed steel tool bits. BS 1296-4: 1978 BSI 389 Chiswick High Road London W4 4AL BSIBritish

20、StandardsInstitution BSI is the independent national body responsible for preparing BritishStandards. It presents the UK view on standards in Europe and at the international level. It is incorporated by Royal Charter. Revisions BritishStandards are updated by amendment or revision. Users of BritishS

21、tandards should make sure that they possess the latest amendments or editions. It is the constant 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 BritishStandard would inform the Secretary of the techn

22、ical committee responsible, the identity of which can be found on the inside front cover. Tel:02089969000. Fax:02089967400. BSI offers members an individual updating service called PLUS which ensures that subscribers automatically receive the latest editions of standards. Buying standards Orders for

23、 all BSI, international and foreign standards publications should be addressed to Customer Services. Tel:02089969001. Fax:02089967001. In response to orders for international standards, it is BSI policy to supply the BSI implementation of those that have been published as BritishStandards, unless ot

24、herwise requested. Information on standards BSI provides a wide range of information on national, European and international standards through its Library and its Technical Help to Exporters Service. Various BSI electronic information services are also available which give details on all its product

25、s and services. Contact the Information Centre. Tel:02089967111. Fax:02089967048. Subscribing members of BSI are kept up to date with standards developments and receive substantial discounts on the purchase price of standards. For details of these and other benefits contact Membership Administration

26、. Tel:02089967002. Fax:02089967001. Copyright Copyright subsists in all BSI publications. BSI also holds the copyright, in the UK, of the publications of the international standardization bodies. Except as permitted under the Copyright, Designs and Patents Act 1988 no extract may be reproduced, stor

27、ed in a retrieval system or transmitted in any form or by any means electronic, photocopying, recording or otherwise without prior written permission from BSI. This does not preclude the free use, in the course of implementing the standard, of necessary details such as symbols, and size, type or gra

28、de designations. If these details are to be used for any other purpose than implementation then the prior written permission of BSI must be obtained. If permission is granted, the terms may include royalty payments or a licensing agreement. Details and advice can be obtained from the Copyright Manager. Tel:02089967070.