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है”ह”ह

IS 15091-2 (2004): Indexable Inserts for Cutting Tools -Ceramic Inserts with Rounded Corners, Part 2: Dimensions ofInserts without Cylindrical Fixing Hole [PGD 32: Cuttingtools]

IS 15091 (Part 2): 2004

ISO 9361-2:1991

Indian Standard

INDEXABLE INSERTS FOR CUTTING TOOLS —CERAMIC INSERTS WITH ROUNDED CORNERS

PART 2 DIMENSIONS OF INSERTS WITH CYLINDRICAL FIXING HOLE

ICS25.1OO.O1

0 BIS 2004

BUREAU OF INDIAN STANDARDSMANAK BHAVAN, 9 BAHADUR SHAH ZAFAR MARG

NEW DELHI 110002

Februay 2004 Price Group 6

Single Point Cutting Tools, Carbide Tips and Indexable Inserts Sectional Committee, BP 12

NATIONAL FOREWORD

This Indian Standard (Part 2) which is identical with ISO 9361-2:1991 ‘Indexable inserts for cutting tools— Ceramic inserts with rounded corners — Part 2: Dimensions of inserts with cylindrical fixing hole’issued by the International Organization for Standardization (ISO) was adopted by the Bureau of IndianStandards on the recommendations of the Single Point Cutting Tools, Carbide Tips and Indexable InsertsSectional Committee and approval of the Basic and Production Engineering Division Council.

The text of the ISO Standard has been approved as suitable for publication as an Indian Standard withoutdeviations. Certain conventions are, however, not identical to those used in Indian Standards. Attention isparticularly drawn to the following:

a) Wherever the words ‘International Standard’ appear referring to this standard, they should be readas ‘Indian Standard’.

b) Comma (,) has been used as a decimal marker in the International Standard, while in IndianStandards, the current practice is to use a point(.) as the decimal marker.

In the adopted standard, reference appears to the following International Standard for which IndianStandard also exists. The corresponding Indian Standard which is to be substituted in its place is listedbelow along with its degree of equivalence for the edition indicated:

lnternationa/ Standard Corresponding Indian Degree ofStandard Equivalence

ISO 1832:1991 Indexable inserts IS 9897:2001 Indexable inserts Identicalfor cutting tools — Designation for cutting tools — Designation

(second revision)

For the purpose of deciding whether a particular requirement of this standard is complied with, the finalvalue, observed or calculated, expressing the result of a test or analysis shall be rounded off inaccordance with IS 2:1960 ‘Rules for rounding off numerical values (revised)’. The number of significantplaces retained in the rounded off value should be the same as that of the specified value in this standard.

IS 15091 (Part 2) :2004ISO 9361-2:1991

Indian Standard

INDEXABLE INSERTS FOR CUTTING TOOLS —CERAMIC INSERTS WITH ROUNDED CORNERS

PART 2 DIMENSIONS OF INSERTS WITH CYLINDRICAL FIXING HOLE

1 Scope

This part of ISO 9361 specifies the dimensions ofindexable ceramic inserts with rounded corners,with cylindrical fixing hole, with 0° normal clearance.These inserts are primarily intended to be mountedby top and hole, or hole alone, clamping on turningand boring tools.

Ceramic cutting materials consist of a variety of ox-ides, nitrides and carbides. In contrast withhardmetals (including cermets) ceramics do nothave a metallic binding matrix, Such ceramic ma-terials are, for example, oxide ceramics (consistingprimarily of aluminium oxide A120J, carboxide cer-amics (consisting generally of a mixture of alu-minium oxide and other materials such as titaniumcarbide TiC) and nitride ceramics (consisting gen-erally of a mixture of silicon nitride and other ma-terials, such as yttrium oxide Y203 and aluminiumoxide)

2 Normative reference

The following standard contains provisions which,through reference in this text, constitute provisionsof this part of ISO 9361. At the time of publication,the edition indicated was valid, All standards aresubject to revision, and parties to agreements basedon this part of ISO 9361 are encouraged to investi-gate the possibility of applying the most recent edi-tion of the standard indicated below. Members ofIEC and ISO maintain registers of currently validInternational Standards.

ISO 1832:1991, Indexable inserts for cutting tools –Designation.

3 Types of inserts

The types of indexable ceramic inserts specified inthis part of ISO 9361 are the following:

– TN: triangular inserts, with 0° normal clearance:

— SN: square inserts, with 0°

– CN: rhombic inserts, withand 80” included angle;

— DN: rhombic inserts, withand 55” included angle;

normal clearance;

0° normal clearance

0° normal clearance

— RN: round inserts, with 0° normal clearance.

Inserts dealt with in this part of ISO 9361 are stan-dardized without chip breakers.

In general, the inserts are used with chamfered orrounded cutting edges, see clause 6.

Table C.1 gives the range of sizes for the inserts(see annex C).

4 Tolerances

The indexable ceramic inserts which are the subjectof this part of ISO 9361 are provided in toleranceclasses G and M, in accordance with ISO 1632.

The values of the tolerances in accordance withISO 1832 are given in table A.1. Other tolerances aregiven in table3 to table 7.

1

-.. &.-

IS 15091 (Part 2) :2004ISO 9361-2:1991

5 Fixing hole

In order to guarantee interchangeability whenmounting the insert, the diameter d, of the fixinghole is related to the diameter c/ of the inscribedcircle of the insert according to table 1,

Table 1 — Fixing holeDimensions in millimetres

d 9,525 12,7 15,875 19,05

——

(fI + 0,08 3,81 5,16 6,35 7,94

6 Cutting edge

6.1 Cutting edge condition

The cutting edge condition of the indexable ceramicinserts specified in this part of ISO 9361 is to beselected from those specified in ISO 1832:1991, 5.1,

6.2 Additional information

The dimensions of chamfered cutting edges T, S, Kor P may be specified, following the letter symbolon cutting edge condition in the manufacturer’scatalogue. Such information on cutting edge dimen-sions, if specified, shall have the form of a five-digitnumber, the first three digits being the value of bYinunits of 0,01 mm and the last two digits being thevalue of Y*, in degrees (see figure 1).

NOTE 1 In the case of cutting edge condition K and P,

the first chamfer 67,, defined in accordance with figure 2,is at the manufacturer’s choice and is not part of the ad-ditional information (five-digit number) as described in6.2,

b

Figure 1

Figure 2

IS 15091 (Part 2) :2004ISO 9361-2:1991

EXAMPLE

Chamfered cutting edge Ton an inserf TNGA 160412

/JY= 0,2 mm

yh = 20°

Designation and additional information:

TNGA 160412T 02020

7 Designation and marking

7.1 Designation

The designation of the indexable ceramic insertswhich form the subject of this part of ISO 9361 shallconform to ISO 1832.

In addition to this designation, one or both of thefollowing may be indicated:

the number symbol for the additional informationon cutting edge dimensions, in accordance with6.2;

— the commercial designation of the ceramicgrade.

7.2 Marking

The following symbol, at least, shall be marked onthe insert itself (except when this would be difficultto carry out on smaller inserts):

— symbol of the commercial designation of theceramic grade.

8 Measurement

Annex B indicates the methods of measuring thedimension m of the indexable inserts covered by thispart of ISO 9361.

9 Recommended dimensions

The choice of the more common dimensions is re-stricted to the values given in table 3 to table 7. It isstrongly recommended that these standard insertsbe used each time wherever possible (first prefer-ence). When other inserts are required, their di-mensions shall be selected from the non-shadedareas of table C.1 (second preference). Inserts cor-responding to the dimensions given in the shadedareas of this table are not recommended.

NOTE 2 The m-dimensions are calculated using the ex-act values, rounded off to the third decimal point, of thecorner radius r,, in accordance with table 2.

Table 2 – Values of r. used for calculation ofdimension m

WDesignation ~4 ~8

of r,

Calculation

value 0,397 0,794of r,, mm

12

1,191 z16 20

1,588 1,984 324

2,381

. .

IS 15091 (Part 2) :2004

ISO 9361-2:1991

9.1 Triangular inserts

TN6A7MlA

Ffgure 3

Table 3 – Dimensions of triangular inserteDimensions in millimetres

Inserts1 d m d,

= t) i! 1) *’i,* * 0,03

-rWm 1s0464 TNMA 1S0404 13,891 0,4

TN(3A lStM6S TNMA le040S 13.494 0,816,5 9,525 4,70 3,81

TN(3A 160412 TNMA 1S0412 13,097 1,2

TNQA 1S0416 TNMA 1S0416 ~2,7 1,6

TNOA 220SC8 TNMA 220SOe 18,256 0,8

TNGA 220S12 TNMA 220S12 17,859 1,222 42,7 6,35 5,16

TN(3A 220S16 TNMA 22W16 17,463 1,6

TNGA 226S20 TNMA 220S20 17,066 2

1) Tolerances In accordance with those specified in ISO 1832, annex A.

4

. .. ...

IS 15091 (Part 2) :2004

ISO 9361-2:1991

9.2 Square Inserts

SN6AS?MA

Figure 4

Table 4 – Dimensions of square insertsDimensions in millimetres

Insertsd 3 m d,1) 1) 1) *31 * 0,08

SNGA 120404 SNMA 120404 2,466 0,4

SNGA 120406 SNMA 120406 2,301 0,8?2,7 4,76 5,16

SNGA 120412 SNMA 120412 2,137 1,2

SNGA 120416 SNMA 120416 1,972 1,6——

SNGA 12060S SNMA 12060S 2,301 0,8

SNGA 120612 SNMA 120612 2,137 — 1,272,7 6,35 .——. 5,16

‘SNGA 120616 SNMA 120616 1,972 1,6 —

SNGA 120620 SNMA 120620 1,808 2

SNGA 150S12 SNMA 1S0S12 2,795 1,2

SNGA 1S0616 SNMA 160616 15%875 6,35 2,63 1,6 6,35

SNGA 150620 SNMA 150S20 2,466 2

1) Tolerances in accordance with those spectf!ed in ISO 1832, annex A.

5

.. .. -.

IS 15091 (Part 2) :2004ISO 9361-2:1991

9.3 Rhombic inserts with 80° included angle

CM4A

p 0 o~ I

Figure 5

Table 5 – Dimensions of rhombic inserts with 80° included angleDimensions in millimetres

Inserts1 d s ml n12 4N 1) 1) 1) 1) +$,1 +- 0,08

CNQA 120404 CNMA 120404 3,308 1,818 0,4

CNQA 12040S CNMA 12040S 3,088 1,697 0,812,9 32,7 4,76 5,16

CNQA 120412 CNMA 120412 2,867 1,576 1,2

CNf3A 120416 CNMA 120416 2,647 1,455 1,6

CNQA 120S0S CNMA 120S0S 3,088 1,697 0,8

CNQA 120612 CNMA 120612 2,867 1,576 1,212,9 12,7 6,35 5,16

CNQA 120616 CNMA 120S16 2,647 1,455 1,6

CNQA 120S20 CNMA 120620 2,426 1,334 2

CNQA 160612 CNMA 160612 3,749 2,061 1,2

CNQA 160S16 CNMA 160616 16,1 15,875 6,35 3,529 1,939 1,6 6,35

CM(3A 16W20 CNMA 160620 3,306 1,616 2

1) Tolerances in accordance with those specified in ISO 1832, annex A.

6

.. .“

IS 15091 (Part 2) :2004ISO 9361-2:1991

9.4 Rhombic inserts with 55° included angle

Figure 6

Table 6 – Dimensions of rhombic inserts with 55° included angle

Inserts

DWAIS04D8 I DNIAA 15&iii

DW3A 1S0412 DNMA 1S0412I

mm 160416 DNMA 160416,

DNGA 15060S DNMA 16060SI

DNGA 1S0612 DNMA 160612I

DNGA 150616 DNMA 1506161

DNQA 150620 DNMA 160620

15.5

15,5

d1)

12,7

12,7

Dimensions in millimetre

s m1) 1)

4*$1 f 0,08

6,478 0,8I

4,76 6,015 1,2 5,16I

5,552 1,6—— 1 I I

6,478 0,8

’35El=l 5’61) Tolerances in accordance with those specified in ISO 1832, annex A.

7

. .... ,..

IS 15091 (Part 2) :2004ISO 9361-2:1991

9.5 Round inserts

-,-.

I

UnHA

~

Figure 7

Table 7 – Dimensions of round insertsDimensions in milliMeheS

insertsd s d,1) 1) * 0,08 I

I I I

RNGA 120400 RNMA 120460 12,7 4,76 5,16 II I I

RNGA lSMOO RNMA l!YXW — 15,875 6,35 i~I I ,

RNGA 190@0 RNMA leOSOO t- 19,05 6,3S 7$4 II I I f

1) Tolerances in accordance with those specified in ISO 1832, annex A.

IS 15091 (Part 2) :2004ISO 9361-2:1991

Annex A

(normative)

Tolerances for d, w q, nz2 and s (extract from ISO 1832)

Table A.1 – Tolerances for d, m, ml, Q and sDimensions in millimetres

Tolerances class GTolerances

Insert forTolerances class M for classes O and M

for

Designation d d, m, ml and r?!? d m, ml and m2 .Y

TN.A 16.. 9,525 * 0,05 + 0,08

TN.A 22..

SN.A 12.. *0,13

CN.A 12.. 12,7 * 0,08

RN.A 12.,+ 0,025 *0,13

DN.A 15.. *0,15

SN.A 15..CN.A 16.. 15,875 *0,1 * 0,15

RNA 15..

RN.A 19.. 19,05 *0,1 fo,15

1

9

-. A

IS 15091 (Part 2) :2004ISO 9361-2:1991

Annex B

(normative)

Method of measurement

B.1 Triangular inserts

of

Dimension nZ is related to the side opposite the cor-ner that is to be measured. The insert is placed ona surface plate as shown in figure B.1 and checkedby means of a dial gauge zeroed with the aid of agauge block corresponding to dimension m. The dialgauge then gives a reading of the error when ap-plied to the inserts to be measured.

Figure B.2

“m” dimension

Figure B.1

B.2 Square inserts

Dimension m is checked

B.3 Rhombic inserts

Dimension m is checked by reference to the diam-eter d of a precision roller, where d corresponds tothe nominal size of the inscribed circle of the insert.The insert is mounted on a 55°, 80° or 100° vee-blockas shown in figure B.3 and checked by means of adial gauge which has been zeroed to dimension mby means of a roller with the aid of a gauge block.

by reference to the diam- The dial gauge then gives a direct reading of the. .eter d of a precision roller, where d corresponds to error when applied to the Inserts to be measured.

the nominal diameter of the inscribed circle of theinsert. The insert is mounted on a 90° vee-block asshown in figure B.2 and checked by means of a dialgauge which has been zeroed to dimension m bymeans of a roller with the aid of a gauge block. Thedial gauge then gives a direct reading of the errorwhen applied to the inserts to be measured.

(-7)

i!!z%e

. . . . .

Figure B.3

B.4 Round inserts

The diameter d is measured with a micrometer or asimilar device.

10

IS 15091 (Part 2) :2004ISO 9361-2:1991

Inserts with rounded

1=d

9,525.

I ‘12,7

F12,7

15,s75

19,05

12,7

15,875

19,05

12,7

t-

15,875

19,05

Annex C

(normative)

with cylindrical fixing hole, with shapes covered

parl of ISO 9361

Table C.1 – Range of sizesDimensions in milltmetres

Tolerance ciaaa

G M

d Corner radiua, rt d Corner radius, rcDesignation

? 0,4 0,8 1,2 1,6 2 2,4Designation

2 0,4 0,8 1,2 1,6 2 2,4

TNGA 1604 + + + TNMA 1804 + + + +—

TNGA 2204 TNMA 2204

TNGA 2206 + + + + TNMA 2206 + + + +

SNGA 1204 + + + SNMA 1204 + + +

SNGA 1206 + + + + SNMA 1206 + + + +

SNGA 1506 + + + SNMA 1506 + + +

SNGA 1S06 SNMA 1966

CNGA 1204 + + + .“’ CNMA 1204 + + + +

CNGA 1206 + + + + CNMA 1206 + + + +

CNGA 1606 + + + CNMA 1606 + + +

CNGA 1906 CNMA 1906

DNGA 1504 + + + DNMA 154)4 + + +

DNGA 1606 + + + + DNMA 150S + + + +

RNGA 1204(XI + RNMA 12041M +

RNGA 1606W + RNMA 1506Ul +

RNGA 191KO0 + RNMA 180800 +

~ First pr eference, inserts included in this part of ISO 9361 (see tables 3 to 7).

~ Non-shaded areas: second preference, inserts not covered by this pert of ISO 9361,

n Shaded areas: inserts not recommended.

11

IS I 5091 (Part 2): 2004ISO 9361-2:1991

Annex D

(informative)

Bibliography

[1] ISO 883:1985, /ndexab/e hardrnetal (carbide)inserts with rounded corners, without fixinghole — Dimensions.

[2] ISO 3286:1976, Single point cutting tools –Corner radii.

[3] ISO 3364:1985, /ndexab/e hardmetal (carbide)inserts with rounded corners, with cylindricalfixing hole — Dimensions.

[4] ISO 3365:1985, Indexable hardrnetal (carbide)inserts with wiper edges, without fixing hole —Dimensions.

[5] ISO 6987-1:1983, Indexable hardmetal (carbide)inserts with rounded corners, with partly cylin-

drical fixing hole – Part 1: Dimensions of in-serts with 7 degrees normal clearance.

[6] ISO 6987-2:1990, Indexable inserts for cuttingtools – Hardmetal (carbide) inserts withrounded corners, with partly cylindrical fixinghole – Part 2: Dimensions of inserts with 11degrees normal clearance.

[7] lSO/TR 6987-3:1990, Indexable inserts for cut-ting tools – Hardmetal (carbide) inserts withrounded corners, with partly cylindrical fixinghole – Part 3: V-shape inserts.

[8] ISO 9361-1:1991, /ndexab/e inserts for cuffingtools — Ceramic inserts with rounded corne~s– Part 1: Dimensions of inserts without fixinghole.

.—

12

-1

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This Indian Standard has been developed from Doc : No. BP 12 (0288).

.

. --,,

Amendments Issued Since Publication

Amend No. Date of Issue Text Affected

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