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IS 15448-6 (2004): Tools for Pressing - Guide Bushes, Part
6: Form E, Gliding Bushes, Flanged, Type 1 [PGD 4: Metal
Forming Machines]
“!ान $ एक न’ भारत का +नम-ण”
Satyanarayan Gangaram Pitroda
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“!ान एक ऐसा खजाना > जो कभी च0राया नहB जा सकता हहहहै””ै”
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IS 15448 (Part 6) :2004
ISO 9448-6:1991
Indian Standard
TOOLS FOR PRESSING — GUIDE BUSHES
PART 6 FORM E, GLIDING BUSHES, FLANGED, TYPE 1
ICS 25.20.10
@BIS 2004
BUREAU OF INDIAN STANDARDS
MANAK BHAVAN, 9 BAHAE)UR SHAH ZAFAR MARG
NEW DELHI 110002
March 2004
Price Group 2
Metal Forming Machines Sectional Committee, BP 04
NATIONAL FOREWORD
This Indian Standard (Part 6)which isidentical with ISO 9448-6:1991 ‘Tools for pressing — Guide bushes
— Parl 6: Form E,gliding bushes, flanged, type 1‘issued bythe International Organization for Standardization
(ISO) was adopted by the Bureau of Indian Standards on the recommendations of the Metal Forming
Machines Sectional Committee and approval of the Basic and Production Engineering Division Council.
The text ofthe ISO Standard has been approved as suitable for publication as an Indian Standard without
deviations. Certain conventions are, however, not identical to those used in Indian Standards. Attention
is particularly drawn to the following:
a) Wherever the words ‘International Standard’ appear referring t~this standard, they should be read
as ‘Indian Standard.
b) Comma (,) has been used as a decimal marker in the International Standard, while in Indian
Standards, the current practice isto use a point (.) as the decimal marker.
For the purpose of deciding whether a particular requirement of this standard is complied with, the finai
value, observed orcalculated, expressing the result ofatest oranalysis shall be rounded off inaccordance
with IS 2 : 1960 ‘Rules for rounding off numerical values (revised)’. The number of significant places
retained inthe rounded off value should be the same as that of the specified value inthis standard.
IS 15448 (Part 6) :2004
ISO 9448-6:1991
Indian Standard
TOOLS FOR PRESSING — GUIDE BUSHES
PART 6 FORM E, GLIDING BUSHES, FLANGED, TYPE 1
—
1 Scope 4 Designation
This part of ISO 9448 specifies the main dimensions
A guide bush in accordance with this part of
and tolerances, in millimetres, of guide bushes of
ISO 9448 shall be designated by
form E, flanged gliding bushes, type 1, intended for
use in press tools and to be mounted in the clamp
a) “Guide bush”:
plate with transition fit and fixed to the plate by
means of guide clamps.
b) a reference to this part of ISO 9448;
[tgives guidance on the materials, and specifies the
c) its form;
hardness and the designation of bushes in accord-
ance with this part of ISO 9448.
d) its guiding diameter, 1)1,in millimetres;
2 Dimensions e) its length, It, in millimetres;
See figure 1and table 1. 9 its length, 1,in millimetres.
Details not stated such as cham fers, radii, lubri-
EXAMPLE
cation grooves, etc., are left to the manufacturer’s
discretion.
A guide bush of form E, flanged gliding bush,
type 1, of guiding diameter D, = 12 mm, of length
3 Material and corresponding hardness /, = 20 mm and of length / = 30 mm is designated
as follows:
The material is Iefl to the manufacturer’s discretion
and the hardness shall be 60 “~HRC. Guide bush ISO 9448-6 E-12 x 20 x 30
IS 15448 (Part 6) :2004
ISO 9448-6:1991
Surface roughness values in micrometres
\
Numbeorfguideclampsat
,/“”_’ them.nufacturer,s dlscretlm
d
-.
‘\,
-pk)!
“!&_
qi$~./’
,/
,
Figure 1
IS 15446 (Part 6) :2004
ISO 9446-6:1991
Table 1
nom. 12 16 20 25 32 40 50
91
tol G6 G5
Dzk51) 22 28 32 40 48 58 70
f13 30 36 40 48 56 66 80
El, 47 53 57 65 73 83 97
T *O!l 6,3 6,3 6,3 6,3 6,3 6,3 6,3
1,
nom. tol 1 v,) f (I,) j (/,) f (1*) 1 v,) I (/2) I (12)
—..—
30 10
20
45 25
35 to 35 10 37 f2 37 12
—-
25 -2,0 50 25 57 32 45 20 61 36
-2,5
61 36 81 56
42 10 42 to 44 12 57 25 44 12
32 64 32 68 36 82 50 77 45
95 63
50 10 52 12 52 1’2 72 32 55 15
40 76 36 80 40 96 56 85 45
— —..
111 71
62 12 62 12 65 15 82 32 68 18
50 -3 90 40 95 45 113 63 100 50
-4
130 80
75 12 78 15 78 15 99 36
63
108 45 113 50 f34 71
——
95 15 98 18
80
130 50 143 63
——
118 18
100 --53 —. .—.
163 63 “
NOTE – To prevent an incorrect assembly of the upper and lower plates of the die set in relation to each other, the
following values of I+ are recommended: 11, 15, 19, 24, 30, 38 and 46,
1) Intended to fit in a hole having a tolerance H7.
3
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edition by referring to the latest issue of ‘BIS Catalogue’ and ‘Standards: Monthly Additions’.
This indian Standard has been developed from Dot: No. BP 04 (0382).
.—
Amendments Issued Since Publication
Amend No. DateofIssue TextAffected
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