1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS ISO 6987:2012Indexable hard material inserts with rounded corners, with partly cylindrical fixing hole DimensionsBS ISO 6987:2012 BRITISH STANDARDNational forewordThis British
2、 Standard is the UK implementation of ISO 6987:2012. It supersedes BS 4193-13:1998, which is withdrawn.The UK participation in its preparation was entrusted to Technical Committee MTE/18, Tools tips and inserts for cutting applications.A list of organizations represented on this committee can be obt
3、ained 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. The British Standards Institution 2012Published by BSI Standards Limited 2012ISBN 978 0 580 69445 5 ICS 25.100.01 Compliance w
4、ith a British Standard cannot confer immunity from legal obligations.This British Standard was published under the authority of the Standards Policy and Strategy Committee on 29 February 2012.Amendments issued since publicationDate T e x t a f f e c t e dBS ISO 6987:2012 ISO 2012Indexable hard mater
5、ial inserts with rounded corners, with partly cylindrical fixing hole DimensionsPlaquettes amovibles en matriaux durs avec arrondi de pointe et trou de fixation partiellement cylindrique DimensionsINTERNATIONAL STANDARDISO6987Second edition2012-02-01Reference numberISO 6987:2012(E)BS ISO 6987:2012IS
6、O 6987:2012(E)ii ISO 2012 All rights reservedCOPYRIGHT PROTECTED DOCUMENT ISO 2012All 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
7、 in writing from either ISO at the address below or ISOs member body in the country of the requester.ISO copyright officeCase postale 56 CH-1211 Geneva 20Tel. + 41 22 749 01 11Fax + 41 22 749 09 47E-mail copyrightiso.orgWeb www.iso.orgPublished in SwitzerlandBS ISO 6987:2012ISO 6987:2012(E)ForewordI
8、SO (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 c
9、ommittee 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 electr
10、otechnical 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 mem
11、ber 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 identifyi
12、ng any or all such patent rights.ISO 6987 was prepared by Technical Committee ISO/TC 29, Small tools, Subcommittee SC 9, Tools with cutting edges made of hard cutting materials.This second edition cancels and replaces the first edition (ISO 6987:1998), which has been technically revised. ISO 2012 Al
13、l rights reserved iiiBS ISO 6987:2012BS ISO 6987:2012Indexable hard material inserts with rounded corners, with partly cylindrical fixing hole Dimensions1 ScopeThis International Standard specifies the dimensions of hard material inserts with rounded corners and with a partly cylindrical fixing hole
14、. These inserts are primarily intended to be mounted on turning and boring tools using a countersunk head screw or any other fixing element, such as a pin lock.2 Normative referencesThe following referenced documents are indispensable for the application of this document. For dated references, only
15、the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.ISO 513, Classification and application of hard cutting materials for metal removal with defined cutting edges Designation of the main groups and groups of applicationI
16、SO 1832, Indexable inserts for cutting tools Designation3 Types of insertsThe types of indexable hard material insert specified in this International Standard are the following: TC: triangular inserts, with 7 normal clearance; TP: triangular inserts, with 11 normal clearance; SC: square inserts, wit
17、h 7 normal clearance; SP: square inserts, with 11 normal clearance; CC: rhombic inserts, with 7 normal clearance and 80 included angle; CP: rhombic inserts, with 11 normal clearance and 80 included angle; DC: rhombic inserts, with 7 normal clearance and 55 included angle; VB: rhombic inserts, with 5
18、 normal clearance and 35 included angle; VC: rhombic inserts, with 7 normal clearance and 35 included angle; RC: round inserts, with 7 normal clearance; RP: round inserts, with 11 normal clearance; WC: hexagonal (trigon) inserts, with 7 normal clearance and 80 included angle.Inserts dealt with in th
19、is International Standard are standardized with chip breakers on the face (designated by the letter T) and without chip breakers (designated by the letter W).Neither the shape nor the dimensions of chip breakers are standardized. Thus, if necessary, special features shall be explained with a diagram
20、 or additional specifications.Tables C.1 to C.4 give the range of sizes for these inserts.INTERNATIONAL STANDARD ISO 6987:2012(E) ISO 2012 All rights reserved 1BS ISO 6987:2012ISO 6987:2012(E)4 Interchangeability4.1 TolerancesThe indexable hard material inserts which are the subject of this Internat
21、ional Standard are provided in tolerance class M and for VC-shape inserts also in tolerance class G in accordance with ISO 1832.The values of tolerance class G are in accordance with ISO 1832 and the values of tolerance class M are given in Annex A.Other tolerances are included in Table 1 for hole d
22、imensions and in Tables 3 to 12 for insert dimensions.4.2 Thickness, s, of inserts with chip breakersThe thickness, s, of inserts with chip breakers is defined as the distance between the cutting edge at the corner and the supporting surface of the insert; see Figure 1.Figure 1 Thickness of inserts
23、with chip breakers 4.3 Fixing holeIn order to guarantee interchangeability when mounting the insert by a countersunk head screw having a head taper angle between 40 and 60, the form of the hole is partly cylindrical and its dimensions are related to the diameter of the inscribed circle of the insert
24、. Figure 2 and Table 1 give the elements of definition of the fixing hole.The position of point P is given by diameter d2(see Table 1), the distance t, measured from the cutting edge at the corner and dimension c, measured from the upper face.The ranges of dimensions t and c are as follows:0,05 d1 t
25、 0,3 d1and0,15 d1 c 0,3 d1These dimensions take into account three cases: indexable inserts with upper faces below the cutting edges see Figure 2 a); with upper faces on the same level as the cutting edges see Figure 2 b); with upper faces above the cutting edges see Figure 2 c).The dimensions of t
26、and c shall be satisfied in all three cases.The diameter, d1, of the cylindrical part of the hole is given in Table 1.2 ISO 2012 All rights reservedBS ISO 6987:2012ISO 6987:2012(E)The part of the profile between d1and P is left to the manufacturers discretion, but shall satisfy the following require
27、ments: the use of screws with head taper angle, , of between 40 and 60 shall be possible; the angle of the tangent theoretical taper at point P has the value of 65; the distance between the contact line with a screw having a 40 head taper angle and the contact line with a screw having a 60 head tape
28、r angle shall be as small as possible.The part of the profile above point P is left to the manufacturers discretion.Figure 2 Fixing holeTable 1 Dimensions of the holeDimensions in millimetresdFor insert shapeT, S, C, D, V, W4,76 5,56 6,35 7,94 9,525 12,7 15,875 19,05 25,4 R 6 8 10/12 16 20 25 32d1JS
29、13 2,15 2,5 2,8 3,4 4,4 5,5 5,5 6,5 8,6 8,6d2JS13 2,7 3,3 3,75 4,5 6 7,5 7,5 9 12 125 Designation and marking5.1 DesignationThe designation of the indexable hard material inserts which form the subject of this International Standard shall conform to ISO 1832.In addition to this designation, one or b
30、oth of the following may be indicated: the symbol of the group of application, in accordance with ISO 513; the commercial designation of the hard material grade. ISO 2012 All rights reserved 3BS ISO 6987:2012ISO 6987:2012(E)5.2 MarkingThe following symbol, at least, shall be marked on the insert its
31、elf (except when this is difficult to carry out on small inserts): symbol of the group of application, or commercial designation of the hard material grade, or both, if possible, on large inserts.6 MeasurementAnnex B indicates the methods of measuring the dimension m of the indexable inserts covered
32、 by this International Standard.7 Recommended dimensionsThe choice of the more common dimensions is restricted to the values given in Tables 3 to 12. It is strongly recommended that these standard inserts be used wherever possible (first preference). When other inserts are required, their dimensions
33、 shall be selected from the non-shaded areas of Tables C.1 to C.4 (second preference). Inserts having dimensions given in the shaded areas of this table are not recommended.NOTE The m dimensions are calculated using the exact values of the corner radius, r, given in Table 2, rounded to the third dec
34、imal place.Table 2 Exact values of rDesignation of r02 04 08 12 16 20 24 32Exact value of r, mm0,203 2a0,397 0,794 1,191 1,588 1,984 2,381 3,175aRounded to the fourth decimal place.7.1 Triangular inserts TCa) TCMW without chip breakers b) TCMT with chip breakersFigure 3 Triangular inserts TC4 ISO 20
35、12 All rights reservedBS ISO 6987:2012ISO 6987:2012(E)Table 3 Dimensions of triangular inserts TCDimensions in millimetresInsertldasamar 0,1d1JS13TCMW 090204 TCMT 090204 9,6 5,562,387,943 0,4 2,5TCMW 110202 TCMT 11020211 6,359,322 0,22,8TCMW 110204 TCMT 110204 9,128 0,4TCMW 130304 TCMT 13030413,6 7,
36、94 3,1811,51 0,43,4TCMW 130308 TCMT 130308 11,113 0,8TCMW 16T304 TCMT 16T30416,5 9,525 3,9713,891 0,44,4TCMW 16T308 TCMT 16T308 13,494 0,8TCMW 16T312 TCMT 16T312 13,097 1,2TCMW 220404 TCMT 22040422 12,7 4,7618,653 0,45,5TCMW 220408 TCMT 220408 18,256 0,8TCMW 220412 TCMT 220412 17,859 1,2TCMW 220416
37、TCMT 220416 17,463 1,6aTolerances on d, s and m in accordance with ISO 1832. See Annex A.7.2 Triangular inserts TPa) TPMW without chip breakers b) TPMT with chip breakersFigure 4 Triangular inserts TP ISO 2012 All rights reserved 5BS ISO 6987:2012ISO 6987:2012(E)Table 4 Dimensions of triangular inse
38、rts TPDimensions in millimetresInsertldasamar 0,1d1JS13TPMW 090202 TPMT 0902029,6 5,56 2,388,131 0,22,5TPMW 090204 TPMT 090204 7,943 0,4TPMW 110202 TPMT 11020211 6,35 2,389,322 0,22,8TPMW 110204 TPMT 110204 9,128 0,4TPMW 130304 TPMT 13030413,6 7,94 3,1811,51 0,43,4TPMW 130308 TPMT 130308 11,113 0,8T
39、PMW 16T304 TPMT 16T30416,5 9,525 3,9713,891 0,44,4TPMW 16T308 TPMT 16T308 13,494 0,8aTolerances on d, s and m in accordance with ISO 1832. See Annex A.7.3 Square inserts SCa) SCMW without chip breakers b) SCMT with chip breakersFigure 5 Square inserts SC6 ISO 2012 All rights reservedBS ISO 6987:2012
40、ISO 6987:2012(E)Table 5 Dimensions of square inserts SCDimensions in millimetresInsert dasamar 0,1d1JS13SCMW 09T304 SCMT 09T3049,525 3,971,808 0,44,4SCMW 09T308 SCMT 09T308 1,644 0,8SCMW 120404 SCMT 12040412,7 4,762,466 0,45,5SCMW 120408 SCMT 120408 2,301 0,8SCMW 120412 SCMT 120412 2,137 1,2SCMW 150
41、512 SCMT 15051215,875 5,562,795 1,25,5SCMW 150516 SCMT 150516 2,63 1,6SCMW 190612 SCMT 19061219,05 6,353,452 1,26,5SCMW 190616 SCMT 190616 3,288 1,6SCMW 190624 SCMT 190624 2,959 2,4aTolerances on d, s and m in accordance with ISO 1832. See Annex A.7.4 Square inserts SPa) SPMW without chip breakers b
42、) SPMT with chip breakersFigure 6 Square inserts SPTable 6 Dimensions of square inserts SPDimensions in millimetresInsert dasamar 0,1d1JS13SPMW 090304 SPMT 0903049,525 3,181,808 0,44,4SPMW 090308 SPMT 090308 1,644 0,8SPMW 09T304 SPMT 09T3049,525 3,971,808 0,44,4SPMW 09T308 SPMT 09T308 1,644 0,8aTole
43、rances on d, s and m in accordance with ISO 1832. See Annex A. ISO 2012 All rights reserved 7BS ISO 6987:2012ISO 6987:2012(E)7.5 Rhombic inserts with 80 included angle CCa) CCMW without chip breakers b) CCMT with chip breakersFigure 7 Rhombic inserts with 80 included angle CCTable 7 Dimensions of rh
44、ombic inserts with 80 included angle CCDimensions in millimetresInsertldasam1am2ar 0,1d1JS13CCMW 060202 CCMT 0602026,4 6,35 2,381,652 0,908 0,22,8CCMW 060204 CCMT 060204 1,544 0,848 0,4CCMW 080304 CCMT 0803048,1 7,94 3,181,986 1,091 0,43,4CCMW 080308 CCMT 080308 1,765 0,97 0,8CCMW 09T304 CCMT 09T304
45、9,7 9,525 3,972,426 1,333 0,44,4CCMW 09T308 CCMT 09T308 2,206 1,212 0,8CCMW 120404 CCMT 12040412,9 12,7 4,763,308 1,818 0,45,5CCMW 120408 CCMT 120408 3,088 1,697 0,8CCMW 120412 CCMT 120412 2,867 1,576 1,2CCMW 160512 CCMT 16051216,1 15,875 5,563,749 2,061 1,25,5CCMW 160516 CCMT 160516 3,529 1,939 1,6
46、CCMW 190612 CCMT 19051219,3 19,05 6,354,632 2,545 1,26,5CCMW 190616 CCMT 190616 4,411 2,424 1,6CCMW 190624 CCMT 190624 3,97 2,182 2,4aTolerances on d, s, m1and m2in accordance with ISO 1832. See Annex A.8 ISO 2012 All rights reservedBS ISO 6987:2012ISO 6987:2012(E)7.6 Rhombic inserts with 80 include
47、d angle CPa) CPMW without chip breakers b) CPMT with chip breakersFigure 8 Rhombic inserts with 80 included angle CPTable 8 Dimensions of rhombic inserts with 80 included angle CPDimensions in millimetresInsertldasam1am2ar 0,1d1JS13CPMW 04T102 CPMT 04T1024,8 4,76 1,981,21 0,665 0,22,15CPMW 04T104 CP
48、MT 04T104 1,102 0,606 0,4CPMW 050202 CPMT 0502025,6 5,56 2,381,432 0,787 0,22,5CPMW 050204 CPMT 050204 1,324 0,728 0,4CPMW 060202 CPMT 0602026,4 6,35 2,381,652 0,908 0,22,8CPMW 060204 CPMT 060204 1,544 0,848 0,4CPMW 080304 CPMT 0803048,1 7,94 3,181,986 1,091 0,43,4CPMW 080308 CPMT 080308 1,765 0,97
49、0,8CPMW 090304 CPMT 0903049,7 9,525 3,182,426 1,333 0,44,4CPMW 090308 CPMT 090308 2,206 1,212 0,8CPMW 09T304 CPMT 09T3049,7 9,525 3,972,426 1,333 0,44,4CPMW 09T308 CPMT 09T308 2,206 1,212 0,8aTolerances on d, s, m1and m2in accordance with ISO 1832. See Annex A. ISO 2012 All rights reserved 9BS ISO 6987:2012ISO 6987:2012(E)7.7 Rhombic inserts with 55 included
