Tiêu chuẩn iso 06362 4 2012

© ISO 2012 Wrought aluminium and aluminium alloys — Extruded rods/bars, tubes and profiles — Part 4 Profiles — Tolerances on shape and dimensions Aluminium et alliages d’aluminium corroyés — Barres, t[.]

Trang 1

Wrought aluminium and aluminium alloys — Extruded rods/bars, tubes and profiles —

Part 4:

Profiles — Tolerances on shape and dimensions

Aluminium et alliages d’aluminium corroyés — Barres, tubes et profilés filés —

Partie 4: Profilés — Tolérances sur forme et dimensions

INTERNATIONAL STANDARD

ISO 6362-4

Second edition 2012-07-01

Reference number ISO 6362-4:2012(E)

Copyright International Organization for Standardization

Provided by IHS under license with ISO

Trang 2

COPYRIGHT PROTECTED DOCUMENT

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 microfilm, without permission in writing from either ISO at the address below or ISO’s member body in the country of the requester.

ISO copyright office

Case postale 56 • CH-1211 Geneva 20

Trang 3

`,,```,,,,````-`-`,,`,,`,`,,` -ISO 6362-4:2012(E)

Foreword iv

1 Scope 1

2 Normative references 1

3 Terms and definitions 1

4 Materials 1

5 Tolerances on shape and dimensions 2

5.1 Dimensional tolerances 2

5.2 Length 10

5.3 Squareness of cut ends 10

6 Tolerances on form 10

6.1 General 10

6.2 Straightness 10

6.3 Convexity/Concavity 11

6.4 Curved cross-section or contour 12

6.5 Twist 14

6.6 Angularity 15

6.7 Corner and fillet radii 16

Copyright International Organization for Standardization Provided by IHS under license with ISO

Trang 4

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 in 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 Commission (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 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 not be held responsible for identifying any or all such patent rights

ISO 6362-4 was prepared by Technical Committee ISO/TC 79, Light metals and their alloys, Subcommittee

SC 6, Wrought aluminium and aluminium alloys.

This second edition cancels and replaces the first edition (ISO 6362-4:1988), which has been technically revised

ISO 6362 consists of the following parts, under the general title Wrought aluminium and aluminium alloys —

Extruded rods/bars, tubes and profiles:

— Part 1: Technical conditions for inspection and delivery

— Part 2: Mechanical properties

— Part 3: Extruded rectangular bars — Tolerances on shape and dimensions

— Part 4: Profiles — Tolerances on shape and dimensions

— Part 5: Round, square and hexagonal bars — Tolerances on shape and dimensions

— Part 6: Round, square, rectangular and hexagonal tubes — Tolerances on shape and dimensions

— Part 7: Chemical composition

Trang 5

`,,```,,,,````-`-`,,`,,`,`,,` -INTERNATIONAL STANDARD ISO 6362-4:2012(E)

Wrought aluminium and aluminium alloys — Extruded rods/

2 Normative references

The following referenced documents are indispensable for the application of 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 6362-1, Wrought aluminium and aluminium alloys — Extruded rods/bars, tubes and profiles — Part 1:

Technical conditions for inspection and delivery

6081, 6082, 6182, 6101, 6101A, 6101B, 6106, 6110A, 6261, 6262, 6262A, 6351, 6360, 6463

Table 2 — Alloy group II (all aluminium alloys except those given in alloy group I)

Trang 6

`,,```,,,,````-`-`,,`,,`,`,,` -5 Tolerances on shape and dimensions

5.1 Dimensional tolerances

5.1.1 General

Tolerances on dimensions (see Figures 1 and 2) are specified in Tables 3 to 5

The tolerances to be applied to the sectional dimensions as shown in Figure 1, where the nominal thickness of

one wall is equal to or greater than three times the thickness of the other wall, t, shall be agreed between the

purchaser and supplier

The purchaser should specify whether ordinary or special tolerances are required

a)

Key

Figure 1 — Sectional dimensions

Trang 7

Trang 9

Trang 11

Trang 13

above are smaller than the values in the A1, A2 columns of Tables 3 and 4 corresponding to the width w or depth d , the values in the A1

and A2 columns apply.

a The circumscribing circle is the smallest circle which encloses entirely the cross-section of the shape However, this dimension may have to be increased when shapes are subjected to corrections of the uneven thickness or in the case of hollow shapes for which the centre of the circumscribing circle needs to be considered, based on the void These matters should be confirmed with the supplier beforehand as required.

Trang 14

NOTE If no fixed length is specified in the order document, profiles may be delivered in random lengths.

a The circumscribing circle is the smallest circle which encloses entirely the cross-section of the shape However, this dimension may have to be increased when shapes are subjected to corrections of the uneven thickness or in the case of hollow shapes for which the centre of the circumscribing circle needs to be considered, based on the void These matters should be confirmed with the supplier beforehand as required.

The tolerances on straightness shall be as specified in Table 7

Trang 15

ISO 6362-4:2012(E)

Table 7 — Tolerance on straightness

Dimensions in millimetres

Diameter of circumscribing

Minimum wall thickness

a Does not apply to temper grade O.

b Applicable to the values obtained when the shape is laid on a flat table under its own weight so that the camber is minimum.

c The circumscribing circle is the smallest circle which encloses entirely the cross-section of the shape However, this dimension may have to be increased when shapes are subjected to corrections of the uneven thickness or in the case of hollow shapes for which the centre of the circumscribing circle needs to be considered, based on the void These matters should be confirmed with the supplier beforehand as required.

d Does not apply to the plane with the opening part.

Key

Trang 16

Per whole

width W

Per any 25 width

Per whole

width W

Per whole

width W

The tolerances for the curved cross-section shall be applied only when required by the purchaser The

tolerances for the cross-section may be substituted by the tolerances for the contour profile, in which case

the deviation at any point of the curve from the theoretically exact line as defined by the drawing, shall not be

greater than the appropriate tolerance t specified in Table 9 (see Figures 7 and 8)

For the shape with arc length of over 25 mm, the tolerance shall be ± 0,13 mm per 25 mm length of the arc, but

when the arc length is less than 25 mm, the tolerance shall be ± 0,13 mm

When the centre angle at the curved cross-section is 90° or more, measure it every 90° and its fraction

Trang 17

(diameter of allowable circle)

b The tolerance of the contour profile may be confirmed by the method that the section of shape is placed on the actual-sized projection drawing on which tolerance t is written in.

Trang 18

6.5 Twist

Twist shall be measured as shown in Figure 9 by placing the profile on a flat base-plate, the profile resting under own mass, and measuring the maximum distance at any point along the length between the bottom surface of profile and the base-plate surface

Twist tolerances are specified in Table 10 as a function of the width W and the length l of the profile.

Table 10 — Tolerance on twist (maximum value)

Dimensions in millimetres

[per width (W) 1 mm]

Trang 19

The deviation from a specified angle shall be measured as shown in Figures 10 and 11.

The angularity tolerances for right angles shall be as specified in Table 11 as a function of profile width W.

The maximum allowable deviation α in an angle other than a right angle shall be ± 1°

In the case of unequal side lengths, the tolerance on angularity shall apply to the shorter side of the angle, i.e

it is measured starting from the longer side

Trang 20

For profiles with a value of W which exceeds 400 mm, the tolerance shall be subject to agreement between the

supplier and purchaser

Figure 10 — Measurement of angularity in a right angle

Figure 11 — Measurement of angularity in an angle other than a right angle

6.7 Corner and fillet radii

Sharp corners and fillet may be slightly rounded unless otherwise indicated on the drawing The maximum

allowable corner and fillet radii shall be as specified in Table 12

When a corner or fillet radius is specified, the maximum allowable deviation from the specified radius shall be

as specified in Table 13

Trang 21

Maximum allowable deviation from specified radius

Trang 22

ICS 77.150.10

Price based on 17 pages

Tiêu đề	Wrought Aluminium and Aluminium Alloys — Extruded Rods/Bars, Tubes and Profiles — Part 4: Profiles — Tolerances on Shape and Dimensions
Trường học	International Organization for Standardization
Chuyên ngành	Standardization
Thể loại	international standard
Năm xuất bản	2012
Thành phố	Geneva

Định dạng
Số trang	22
Dung lượng	294,46 KB