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है”ह”ह

IS 12716 (2002): End Mills with Indexable Inserts [PGD 32:Cutting tools]

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IS 12716:2002[Amalgamating IS 12716 (Part 1): 1989

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and IS 12716 (Part 2): 1989]

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Indian Standard

END MILLS WITH INDEXABLESPECIFICATION

( First Revision)

INSERTS —

ICS 25.100.20

April 2002

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4

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*

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@ BIS 2002

BUREAU OF IN DIAN STANDARDSMANAK BHAVAN, 9 BAHADUR SHAH ZAFAR MARC

NEW DELHI 110002

Price Group 2

I

Milling Cutters, Saws, Gear Cutting Tools and Broaches Sectional Committee, BP 11

FOREWORD

This Indian Standard (First Revision) was adopted by the Bureau of Indian Standards, after the draft finalizedby the Milling Cutters, Saws, Gear Cutting Tools and Broaches Sectional Committee had been approved by theBasic and Production Engineering Division Council.

This revision has been taken up with two reasons. Firstly, to align with the latest practices being followed inthe industries. Secondly, to amalgate the IS 12716 (Part 1) :1989 and IS 12716 (Part 2) :1989.

In the preparation of this standard, assistance has been derived from 1S0 6262-1:1982 ‘End mills with indexableinserts: Part 1 End mill with flatted parallel shank’ and 1S0 6262-2: 1982 ‘End mills with indexable inserts:Part 2 End mills with morse taper shank’, issued by the International Organization for Standardization (1S0).

For Lhepurpose of deciding whether a particular requirement of this standard is complied with, the final value,observed or calculated, expressing the result of a test or analysis, shall be rounded offn accordance withIS 2:1960 ‘Rules for rounding off numerical values ( revised )’. The number of significant places retained inthe rounded off values should be the same as that of the specified value in this standard.

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IS 12716:2002

Indian Standard

END MILLS WITH INDEXABLE INSERTS —SPECIFICATION

(First Revision)

i SCOPE

This standard covers the general requirements of endmills with indexable inserts.

2 REFERENCES

The following Indian Standards contain provisionswhich through reference in this text, constituteprovision of this standard. At the time of publication,the editions indicated were valid. All standards aresubject to revision and parties to agreements based onthis standard are encouraged to investigate thepossibility of applying the most recent editions of thes[andards indicated below:

IS No.

1715:2002

2428:1999

4022:1996

7778:1975

8692:1978

9897:1993

9322: 1980

3 TYPES

Title

Self-holding tapers — Dimensions(third revision)

Application of hard cutting materialsfor machining by chip removal —Designation of the main groups ofchip removal and groups of applica-tion (first revision)

Indexable hardmetal (carbide) insertswith rounded corners, without fixinghole — Dimensions (secondrevision)

Method for sampling small tools

Dimensions for parallel shanks formilling cutters

Code for designation of indexable(throwaway) inserts for cutting tools

Technical supply conditions forcarbide tipped milling cutters

The following types of end mill with indexable insertshave been covered in this standard:

a) With flatted parallel shanks, and

b) With morse taper shanks.

4 DI-MENSIONS

The dimensions of end mill with flatted parallel shanksand with morse taper shanks shall be as given inTables 1 and 2 respectively.

1

5 MATERIAL

The material shall be alloy steel having tensile strengthnot less than 925 MPa.

6 GENERAL REQUIREMENTS

6.1 Flutes, unless otherwise specified, shall be righthand cutting.

6.2 Inserts shall be according to IS 4022.

6.3 Shank dimensions shall be according to IS 8692and IS 1715.

6.4 Application of carbides for machining shall beaccordingto 1S2428.

6.5 For the requirements not covered in this standard,reference shall be made to IS 9322.

7 SAMPLING

Sampling and criteria of acceptance shall be inaccordance with IS 7778.

8 DESIGNATION

8.1 An end mill with indexable insel~ with flattedparallel shank for right hand cutting having diameterd = 20 mm and conforming to this standard shall bedesignated as:

Parallel Shank End Mill 20 — IS 12716

8.2 An end mill with indexable insert with morsetaper shank for right hand cutting having diameter

d =20 mm and conforming to this standard shall bedesignated as:

Morse Taper Shank End Mill 20 — 1S 12716

9 MARKING

End mill shall be marked with the designation and themanufacturer’s name or trade-mark.

10 PROTECTIVE COATING ANDPACKAGING

Each end mill shall be covered with anti-rust proofmaterial and wrapped in waterproof paper. Each endmill or a number of end mills of same type shall bepacked in a carton bearing the size, number,designation and the manufacturer’s name and/ortrade-mark.

,_..

,,+

IS 12716:2002

Table 1 Dimensions of End Mills with Indexable Inserts — Flatted Parallel Shanks(CJawse 4)

NOTES

Y (w —/l 0.0.4 [A I

N6

I

Od A — – $dl

!-... . ... . ...... 1 ./ I

a90°

[,PARALLEL SHANK

— ACCORDING TO IS 8692

/ ,$ . .

~ i ~ @!-...:

)..

:.’!,........{f,’,::, $; \,’ , ,, .. . .

.... .’ . . +.:. . .

7:..

)

.,?.,

x.:.......,.,.,

., . >...1.‘. !;: & , .

‘.

POSiTIVE NEGATIVE

All dimensions in millimetres.

d dl 1 11 a No. of14 h16 fL5 Max Inserts

16 16 75 25 11 1

120 20 82 30 16 1

125 25 96 38 16 2

132 32 100 38 16 2

I 40 32 I 10 48 16 3

50 32 110 48 16 4

)

4

1 The values of ‘a’are given for the nomirraf values of insert dimensions on sharp corners. The effective values obtirred depend onthe geometry, nose radius and class of inserts used.

2 The value of 90° is the nominal value of the cutting edge angle of the insert. The effective angle obtained on the work piecedependson the geometry and the diameter of the end mill together with the cutting depth.3 Radial run-out value with respect to precision ground inserts of Type ‘G’ is given in IS 9897.

2

IS 12716:2002

Table 2 Dimensions of End Mills with Indexable Inserts — Morse Taper Shanks(Clause 4)

~j]O.04 IA~MORSE TAPE R

a Is 1715

U:t-,:.;.>:..-.).?<i -f

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@d A-4,j J-––––

I ,1

—,,~:-,., —

+ ~ ~ ‘

/:..: ;++

,, ~, ... . . .. ~_~=======, I II#. :,, .: .. ,, .. ..

. . . .. ..,. :..,,.,.,.., .. . ,.,., /., :

1.,... -.: s ., . . .... :.... . . . . .. . . . . . .—

11N6

90°

I

POSITIVE NEGATIVE

All dimensions in millimetres

d Morse 1 11 a No. ofjs 14 Taper *1.5 Max Inserts

No.

16 2 94 25 11 1

20 3 116 30 16 1

25 3 124 38 16 2

32 3 124 38 16 2

40 4 157 48 16 3

50 4 157 48 16 4

NOTES1 The values of ‘u’ are given for the nominal values of insert dimensions on sharp corners. The effective values obtained depend on thegcornetry, nose radius and CIJSSof inserts used,

2 The vahw of 90° is the nominal volue of the cutting edge angle of dle insert. The effective angle obtained on the work piece dependson the geometry and the diameter of the end mill together with the cutting depth.

3 Radial run-out value with respect to precision ground inserts of Type ‘G is given in IS 9897.

..- -

1’

Bureau of Indian Standards

BIS is a statutory institution established under the Bureau of Indian S[andards Act, 1986 to promote

harmonious development of the activities of standardization, marking and quality certification of goodsand attending to connected matters in the country.

Copyright

BIS has the copyright of all its publications. No part of these publications may be reproduced in any formwithout the prior permission in writing of BIS. This does not preclude the free use, in the course ofimplementing the standard, of necessary details, such as symbols and sizes, type or grade designations.Enquiries relating to copyright be addressed to the Director (Publications), BIS.

Review of Indian Standards

Amendments are issued to standards as the need arises on the basis of comments. Standards are also reviewed

periodically; a standard along with amendments is reaffirmed when such review indicates that no changes areneeded; if the review indicates that changes are needed, it is taken up for revision. Users of Indian Standardsshould ascertain that they are in possession of the latest amendments or edition by referring to the latest issue of‘BIS Catalogue’ and ‘Standards: Monthly Additions’.

This Indian Standard has been developed from Doc : No. BP 11 ( 0027).

Amendments Issued Since Publication

Amend No. Date of Issue Text Affected

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