1、raising standards worldwide NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW BSI Standards Publication BS ISO 6987:2012 Indexable hard material inserts with rounded corners, with partly cylindrical fixing hole DimensionsBS ISO 6987:2012 BRITISH STANDARD National foreword This B
2、ritish 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 It supersedes BS 4193-13:1998, which is withdrawn.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 ca
3、n 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 application. The British Standards Institution 2012 Published by BSI Standards Limited 2012 ISBN 978 0 580 69445 5 ICS 25.100.01 C
4、ompliance with 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 publication Date T e x t a f f e c t e dBS ISO 6987:2012 ISO 2012 Index
5、able hard material inserts with rounded corners, with partly cylindrical fixing hole Dimensions Plaquettes amovibles en matriaux durs avec arrondi de pointe et trou de fixation partiellement cylindrique Dimensions INTERNATIONAL STANDARD ISO 6987 Second edition 2012-02-01 Reference number ISO 6987:20
6、12(E)BS ISO 6987:2012ISO 6987:2012(E) ii ISO 2012 All rights reserved COPYRIGHT PROTECTED DOCUMENT ISO 2012 All 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 mic
7、rofilm, without permission in writing from either ISO at the address below or ISOs member body in the country of the requester. ISO copyright office Case postale 56 CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail copyrightiso.org Web www.iso.org Published in SwitzerlandBS ISO 6
8、987:2012ISO 6987:2012(E) Foreword ISO (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 i
9、n 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 take part in the work. ISO collaborates closely with the International Electrotechnical Commis
10、sion (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 committees is to prepare International Standards. Draft International Standards adopted by the technical
11、 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 possibility that some of the elements of this document may be the subject of patent rights. ISO shall
12、 not be held responsible for identifying 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 h
13、as been technically revised. ISO 2012 All rights reserved iiiBS ISO 6987:2012BS ISO 6987:2012Indexable hard material inserts with rounded corners, with partly cylindrical fixing hole Dimensions 1 Scope This International Standard specifies the dimensions of hard material inserts with rounded corners
14、 and with a partly cylindrical fixing hole. 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 references The following referenced documents are indispensable for the application o
15、f this document. For dated references, only 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
16、of the main groups and groups of application ISO 1832, Indexable inserts for cutting tools Designation 3 Types of inserts The types of indexable hard material insert specified in this International Standard are the following: TC: triangular inserts, with 7 normal clearance; TP: triangular inserts, w
17、ith 11 normal clearance; SC: square inserts, with 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 an
18、d 55 included angle; VB: rhombic inserts, with 5 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 clearanc
19、e and 80 included angle. Inserts dealt with in this 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,
20、special features shall be explained with a diagram 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 Interchangeability 4.1 Tolerances The indexable hard
21、material inserts which are the subject of this International 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 Ann
22、ex A. Other tolerances are included in Table 1 for hole dimensions and in Tables 3 to 12 for insert dimensions. 4.2 Thickness, s, of inserts with chip breakers The thickness, s, of inserts with chip breakers is defined as the distance between the cutting edge at the corner and the supporting surface
23、 of the insert; see Figure 1. Figure 1 Thickness of inserts with chip breakers 4.3 Fixing hole In 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
24、related to the diameter of the inscribed circle of the insert. Figure 2 and Table 1 give the elements of definition of the fixing hole. The position of point P is given by diameter d 2(see Table 1), the distance t, measured from the cutting edge at the corner and dimension c, measured from the upper
25、 face. The ranges of dimensions t and c are as follows: 0,05 d 1 t 0,3 d 1 and 0,15 d 1 c 0,3 d 1 These 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
26、upper faces above the cutting edges see Figure 2 c). The dimensions of t and c shall be satisfied in all three cases. The diameter, d 1 , 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 d 1and P i
27、s left to the manufacturers discretion, but shall satisfy the following requirements: 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 havin
28、g a 40 head taper angle and the contact line with a screw having a 60 head taper angle shall be as small as possible. The part of the profile above point P is left to the manufacturers discretion. Figure 2 Fixing hole Table 1 Dimensions of the hole Dimensions in millimetres d For insert shape T, S,
29、C, D, V, W 4,76 5,56 6,35 7,94 9,525 12,7 15,875 19,05 25,4 R 6 8 10/12 16 20 25 32 d 1JS13 2,15 2,5 2,8 3,4 4,4 5,5 5,5 6,5 8,6 8,6 d 2JS13 2,7 3,3 3,75 4,5 6 7,5 7,5 9 12 12 5 Designation and marking 5.1 Designation The designation of the indexable hard material inserts which form the subject of t
30、his International Standard shall conform to ISO 1832. In addition to this designation, one or both 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 6987:2
31、012ISO 6987:2012(E) 5.2 Marking The following symbol, at least, shall be marked on the insert itself (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 Meas
32、urement Annex B indicates the methods of measuring the dimension m of the indexable inserts covered by this International Standard. 7 Recommended dimensions The choice of the more common dimensions is restricted to the values given in Tables 3 to 12. It is strongly recommended that these standard in
33、serts be used wherever possible (first preference). When other inserts are required, their dimensions 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
34、 calculated using the exact values of the corner radius, r , given in Table 2, rounded to the third decimal place. Table 2 Exact values of r Designation of r 02 04 08 12 16 20 24 32 Exact value of r , mm 0,203 2 a 0,397 0,794 1,191 1,588 1,984 2,381 3,175 aRounded to the fourth decimal place. 7.1 Tr
35、iangular inserts TC a) TCMW without chip breakers b) TCMT with chip breakers Figure 3 Triangular inserts TC 4 ISO 2012 All rights reservedBS ISO 6987:2012ISO 6987:2012(E) Table 3 Dimensions of triangular inserts TC Dimensions in millimetres Insert l d a s a m a r 0,1 d 1 JS13 TCMW 090204 TCMT 090204
36、 9,6 5,56 2,38 7,943 0,4 2,5 TCMW 110202 TCMT 110202 11 6,35 9,322 0,2 2,8 TCMW 110204 TCMT 110204 9,128 0,4 TCMW 130304 TCMT 130304 13,6 7,94 3,18 11,51 0,4 3,4 TCMW 130308 TCMT 130308 11,113 0,8 TCMW 16T304 TCMT 16T304 16,5 9,525 3,97 13,891 0,4 4,4 TCMW 16T308 TCMT 16T308 13,494 0,8 TCMW 16T312 T
37、CMT 16T312 13,097 1,2 TCMW 220404 TCMT 220404 22 12,7 4,76 18,653 0,4 5,5 TCMW 220408 TCMT 220408 18,256 0,8 TCMW 220412 TCMT 220412 17,859 1,2 TCMW 220416 TCMT 220416 17,463 1,6 aTolerances on d, s and m in accordance with ISO 1832. See Annex A. 7.2 Triangular inserts TP a) TPMW without chip breake
38、rs b) TPMT with chip breakers Figure 4 Triangular inserts TP ISO 2012 All rights reserved 5BS ISO 6987:2012ISO 6987:2012(E) Table 4 Dimensions of triangular inserts TP Dimensions in millimetres Insert l d a s a m a r 0,1 d 1 JS13 TPMW 090202 TPMT 090202 9,6 5,56 2,38 8,131 0,2 2,5 TPMW 090204 TPMT 0
39、90204 7,943 0,4 TPMW 110202 TPMT 110202 11 6,35 2,38 9,322 0,2 2,8 TPMW 110204 TPMT 110204 9,128 0,4 TPMW 130304 TPMT 130304 13,6 7,94 3,18 11,51 0,4 3,4 TPMW 130308 TPMT 130308 11,113 0,8 TPMW 16T304 TPMT 16T304 16,5 9,525 3,97 13,891 0,4 4,4 TPMW 16T308 TPMT 16T308 13,494 0,8 aTolerances on d, s a
40、nd m in accordance with ISO 1832. See Annex A. 7.3 Square inserts SC a) SCMW without chip breakers b) SCMT with chip breakers Figure 5 Square inserts SC 6 ISO 2012 All rights reservedBS ISO 6987:2012ISO 6987:2012(E) Table 5 Dimensions of square inserts SC Dimensions in millimetres Insert d a s a m a
41、 r 0,1 d 1 JS13 SCMW 09T304 SCMT 09T304 9,525 3,97 1,808 0,4 4,4 SCMW 09T308 SCMT 09T308 1,644 0,8 SCMW 120404 SCMT 120404 12,7 4,76 2,466 0,4 5,5 SCMW 120408 SCMT 120408 2,301 0,8 SCMW 120412 SCMT 120412 2,137 1,2 SCMW 150512 SCMT 150512 15,875 5,56 2,795 1,2 5,5 SCMW 150516 SCMT 150516 2,63 1,6 SC
42、MW 190612 SCMT 190612 19,05 6,35 3,452 1,2 6,5 SCMW 190616 SCMT 190616 3,288 1,6 SCMW 190624 SCMT 190624 2,959 2,4 aTolerances on d, s and m in accordance with ISO 1832. See Annex A. 7.4 Square inserts SP a) SPMW without chip breakers b) SPMT with chip breakers Figure 6 Square inserts SP Table 6 Dim
43、ensions of square inserts SP Dimensions in millimetres Insert d a s a m a r 0,1 d 1 JS13 SPMW 090304 SPMT 090304 9,525 3,18 1,808 0,4 4,4 SPMW 090308 SPMT 090308 1,644 0,8 SPMW 09T304 SPMT 09T304 9,525 3,97 1,808 0,4 4,4 SPMW 09T308 SPMT 09T308 1,644 0,8 aTolerances on d, s and m in accordance with
44、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 CC a) CCMW without chip breakers b) CCMT with chip breakers Figure 7 Rhombic inserts with 80 included angle CC Table 7 Dimensions of rhombic inserts with 80 included angle
45、 CC Dimensions in millimetres Insert l d a s a m 1 a m 2 a r 0,1 d 1 JS13 CCMW 060202 CCMT 060202 6,4 6,35 2,38 1,652 0,908 0,2 2,8 CCMW 060204 CCMT 060204 1,544 0,848 0,4 CCMW 080304 CCMT 080304 8,1 7,94 3,18 1,986 1,091 0,4 3,4 CCMW 080308 CCMT 080308 1,765 0,97 0,8 CCMW 09T304 CCMT 09T304 9,7 9,5
46、25 3,97 2,426 1,333 0,4 4,4 CCMW 09T308 CCMT 09T308 2,206 1,212 0,8 CCMW 120404 CCMT 120404 12,9 12,7 4,76 3,308 1,818 0,4 5,5 CCMW 120408 CCMT 120408 3,088 1,697 0,8 CCMW 120412 CCMT 120412 2,867 1,576 1,2 CCMW 160512 CCMT 160512 16,1 15,875 5,56 3,749 2,061 1,2 5,5 CCMW 160516 CCMT 160516 3,529 1,
47、939 1,6 CCMW 190612 CCMT 190512 19,3 19,05 6,35 4,632 2,545 1,2 6,5 CCMW 190616 CCMT 190616 4,411 2,424 1,6 CCMW 190624 CCMT 190624 3,97 2,182 2,4 aTolerances on d, s, m 1and m 2in accordance with ISO 1832. See Annex A. 8 ISO 2012 All rights reservedBS ISO 6987:2012ISO 6987:2012(E) 7.6 Rhombic inser
48、ts with 80 included angle CP a) CPMW without chip breakers b) CPMT with chip breakers Figure 8 Rhombic inserts with 80 included angle CP Table 8 Dimensions of rhombic inserts with 80 included angle CP Dimensions in millimetres Insert l d a s a m 1 a m 2 a r 0,1 d 1 JS13 CPMW 04T102 CPMT 04T102 4,8 4
49、,76 1,98 1,21 0,665 0,2 2,15 CPMW 04T104 CPMT 04T104 1,102 0,606 0,4 CPMW 050202 CPMT 050202 5,6 5,56 2,38 1,432 0,787 0,2 2,5 CPMW 050204 CPMT 050204 1,324 0,728 0,4 CPMW 060202 CPMT 060202 6,4 6,35 2,38 1,652 0,908 0,2 2,8 CPMW 060204 CPMT 060204 1,544 0,848 0,4 CPMW 080304 CPMT 080304 8,1 7,94 3,18 1,986 1,091 0,4 3,4 CPMW 08
