EN 586-3:2001
(Main)Aluminium and aluminium alloys - Forgings - Part 3: Tolerances on dimensions and form
Aluminium and aluminium alloys - Forgings - Part 3: Tolerances on dimensions and form
This European Standard specifies the tolerances on dimensions and form of aluminium and aluminium alloy forgings for general engineering applications of usual design concepts which are formed hot.
It applies to :
¾ die forgings without machining all over :
shape dimensions nmax £ 2 000 mm, die closure dimensions tmax £ 600 mm and projected area A £ 4 000 cm²;
die forgings with machining all over :
shape dimensions nmax £ 6 000 mm and projected area A £ 22 000 cm²;
¾ hand forgings :
profile dimensions nmax £ 8 000 mm.
Tolerances on forgings outside the scope of this standard or of complex design can be mutually agreed between supplier and purchaser.
Design guidelines for die and hand forgings are given in annex A.
NOTE Some of the products mentioned in this European Standard may be the subject of patent or patent applications, and their listing herein is not to be construed in any way as the granting of a licence under such patent right.
CEN/TC 132 affirms it is its policy that in the case when a patentee refuses to grant licenses on standardized standards products under resonable and non discriminatory conditions then this product should be removed from the corresponding standard.
Aluminium und Aluminiumlegierungen - Schmiedestücke - Teil 3: Grenzabmaße und Formtoleranzen
Diese Europäische Norm legt die Grenzabmaße und Formtoleranzen für warmgeformte Schmiedestücke aus Aluminium und Aluminiumlegierungen üblicher Formgebung für allgemeine technische Anwendungen fest.
Sie gilt für:
¾ Gesenkschmiedestücke ohne allseitige Bearbeitung:
formgebundene Maße nmax £ 2 000 mm,
nichtformgebundene Maße tmax £ 600 mm und projizierte Fläche A £ 4 000 cm2;
¾ Gesenkschmiedestücke mit allseitiger Bearbeitung:
formgebundene Maße nmax £ 6 000 mm und projizierte Fläche A £ 22 000 cm2;
¾ Freiformschmiedestücke:
Profilmaße nmax £ 8 000 mm.
Toleranzen für Schmiedestücke, die außerhalb des Anwendungsbereiches dieser Norm liegen oder eine komplizierte Formgebung aufweisen, können zwischen Lieferer und Käufer vereinbart werden.
Konstruktionsrichtlinien für Gesenk- und Freiformschmiedestücke sind im Anhang A angegeben.
ANMERKUNG Einige in der vorliegenden Norm aufgeführte Produkte können Gegenstand von einem Patent oder Patentanmeldungen sein. Ihre Auflistung in dieser Norm bedeutet aber keinesfalls, dass dadurch eine Lizenzübertragung unter diesem Patentrecht erfolgt.
CEN/TC 132 bekräftigt seine Vorgehensweise, dass in dem Fall, wenn ein Patentinhaber sich weigert, für genormte Erzeug-nisse Lizenzen unter angemessenen und nicht diskriminierenden Bedingungen zu erteilen, dieses Erzeugnis aus der ent-sprechenden Norm entfernt werden sollte.
Aluminium et alliages d'aluminium - Pièces forgées - Partie 3: Tolérances sur dimensions et forme
Cette norme européenne spécifie les tolérances sur dimensions et forme des pièces forgées en aluminium et alliages d'aluminium pour applications mécaniques générales, de conception usuelle formée à chaud.
Elle s'applique aux :
¾ pièces matricées sans usinage complet :
dimensions nominales nmax £ 2 000 mm, dimensions de fermeture des matrices tmax £ 600 mm et aire projetée A £ 4 000 cm2 ;
¾ pièces matricées complètement usinées :
dimensions nominales nmax £ 6 000 mm, et aire projetée A £ 22 000 cm2 ;
¾ pièces obtenues par forgeage libre :
dimension de profilé nmax £ 8 000 mm.
Les tolérances des pièces forgées qui se situent en dehors du domaine d'application de cette norme ou qui sont de conception complexe peuvent être convenues par accord mutuel entre le fournisseur et l'acheteur.
Les directives de conception des pièces matricées ou forgeage libre sont données dans l'annexe A.
NOTE Des matériaux cités dans la présente norme peuvent faire l'objet de brevet ou de demandes de brevets, et leur inclusion dans la présente norme ne doit être en aucune façon considérée comme l'attribution d'une licence au regard des droits attachés à de tels brevets.
Le CEN/TC 132 confirme que dans le cas où le détenteur d'un brevet refuse de céder des licences sur les produits normalisés sous des conditions raisonnables et non discriminatoires, alors ce produit serait éliminé de la norme correspondante.
Aluminij in aluminijeve zlitine – Izkovki – 3. del: Odstopki mer in tolerance oblik
General Information
Standards Content (Sample)
SLOVENSKI STANDARD
01-januar-2004
Aluminij in aluminijeve zlitine – Izkovki – 3. del: Odstopki mer in tolerance oblik
Aluminium and aluminium alloys - Forgings - Part 3: Tolerances on dimensions and form
Aluminium und Aluminiumlegierungen - Schmiedestücke - Teil 3: Grenzabmaße und
Formtoleranzen
Aluminium et alliages d'aluminium - Pieces forgées - Partie 3: Tolérances sur dimensions
et forme
Ta slovenski standard je istoveten z: EN 586-3:2001
ICS:
77.150.10 Aluminijski izdelki Aluminium products
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EUROPEAN STANDARD
EN 586-3
NORME EUROPÉENNE
EUROPÄISCHE NORM
October 2001
ICS 77.150.10
English version
Aluminium and aluminium alloys - Forgings - Part 3: Tolerances
on dimensions and form
Aluminium et alliages d'aluminium - Pièces forgées - Partie Aluminium und Aluminiumlegierungen - Schmiedestücke -
3: Tolérances sur dimensions et forme Teil 3: Grenzabmaße und Formtoleranzen
This European Standard was approved by CEN on 30 September 2001.
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European
Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national
standards may be obtained on application to the Management Centre or to any CEN member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by translation
under the responsibility of a CEN member into its own language and notified to the Management Centre has the same status as the official
versions.
CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece,
Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36 B-1050 Brussels
© 2001 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 586-3:2001 E
worldwide for CEN national Members.
Contents
Foreword.3
1 Scope .4
2 Normative references .4
3 Terms and definitions.5
4 Identification of symbols.6
5 General requirements.7
5.1 Technical conditions for inspection and delivery .7
5.2 Application of tolerances.7
5.3 Summarised references .7
5.4 Chemical composition.8
5.5 Alloy groups .8
6 Tolerances on dimensions and form .10
6.1 Die forgings .10
6.2 Hand forgings.25
Annex A (informative) Design guidelines for die and hand forgings.30
Bibliography .56
Foreword
This European Standard has been prepared by Technical Committee CEN /TC 132, "Aluminium and aluminium
alloys", the secretariat of which is held by AFNOR.
This European Standard shall be given the status of a national standard, either by publication of an identical text or
by endorsement, at the latest by April 2002, and conflicting national standards shall be withdrawn at the latest by
April 2002.
Within its programme of work, Technical Committee CEN/TC 132 entrusted CEN/TC 132/WG3 “Forgings and cast
and wrought forging stock” to prepare the following standard :
EN 586-3, Aluminium and aluminium alloys - Forgings - Part 3 : Tolerances on dimensions and form’
This standard is part of a set of three standards. The other standards deal with :
EN 586-1, Aluminium and aluminium alloys - Forgings - Part 1 : Technical conditions for inspection and
delivery
EN 586-2, Aluminium and aluminium alloys - Forgings - Part 2 : Mechanical properties and additional
properties
Annex A is informative.
This standard includes a Bibliography.
According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following
countries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland,
France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden,
Switzerland and the United Kingdom.
1 Scope
This European Standard specifies the tolerances on dimensions and form of aluminium and aluminium alloy
forgings for general engineering applications of usual design concepts which are formed hot.
It applies to :
die forgings without machining all over :
shape dimensions n 2 000 mm, die closure dimensions t 600 mm and projected area A 4 000 cm²;
max max
die forgings with machining all over :
shape dimensions n 6 000 mm and projected area A 22 000 cm²;
max
hand forgings :
profile dimensions n 8 000 mm.
max
Tolerances on forgings outside the scope of this standard or of complex design can be mutually agreed between
supplier and purchaser.
Design guidelines for die and hand forgings are given in annex A.
NOTE Some of the products mentioned in this European Standard may be the subject of patent or patent applications, and
their listing herein is not to be construed in any way as the granting of a licence under such patent right.
CEN/TC 132 affirms it is its policy that in the case when a patentee refuses to grant licenses on standardized standards
products under resonable and non discriminatory conditions then this product should be removed from the corresponding
standard.
2 Normative references
This European Standard incorporates by dated or undated reference, provisions from other publications. These
normative references are cited at the appropriate places in the text, and the publications are listed hereafter. For
dated references, subsequent amendments to or revisions of any of these publications apply to this European
Standard only when incorporated in it by amendment or revision. For undated references the latest edition of the
publication referred to applies (including amendments).
EN 573-3, Aluminium and aluminium alloys - Chemical composition and form of wrought products -
Part 3 : Chemical composition.
EN 573-4, Aluminium and aluminium alloys - Chemical composition and form of wrought products - Part 4 : Form of
products.
EN 586-1, Aluminium and aluminium alloys - Forgings - Part 1 : Technical conditions for inspection and delivery.
EN 586-2, Aluminium and aluminium alloys - Forgings - Part 2 : Mechanical properties and additional property
requirements.
EN 12258-1, Aluminium and aluminium alloys - Terms and definitions - Part 1 : General terms.
3 Terms and definitions
For the purposes of this European Standard, the terms and definitions given in EN 12258-1 and the following apply.
3.1
die forgings without machining all over
parts entering service use whilst still retaining forged surfaces
3.2
die forgings with machining all over
parts entering service use after removal of all forged surfaces by machining
3.3
shape dimensions
dimensions associated with the shape length, width and height dimensions, including diameters and distances
between centre axes, situated within the shape impression on the parts of the die set, designated n, see Figure1
Key
1 Upper die
2 Lower die
3 Parting line
4 Direction of forging
Figure 1 - Shape dimensions n (die forgings)
3.4
die closure dimensions
dimensions dissociated with the shape dimensions which cross the die parting line, measured perpendicular to the
predominant mating surface, designated t, see Figure2
Key
1 Upper die
2 Lower die
3 Parting line
4 Direction of forging
Figure 2 - Die closure dimensions t (die forgings)
3.5
projected area
area of the part viewed in the direction of forging, designated A, conventionally taken as :
the area of a circle when the projection is a circle ;
the area of a circumscribing rectangle in all other cases, see Figure3.
NOTE Projected area is expressed in square centimetres.
Key
1 Parting line
2 Direction of forging
Figure 3 - Calculation of projected area A (die forgings)
4 Identification of symbols
The following symbols have been adopted for use in this standard :
n is shape dimension
n is maximum shape dimension
max
t is thickness and/or die closure dimension
t is maximum thickness/maximum die closure dimension
max
A is projected area in square centimetres
m is mismatch (offset)
x is fin height
y is fin width
f is flatness (plus/minus tolerance)
s is flatness or straightness (plus only tolerance)
p is profile tolerance (hand forgings)
c is constant thickness tolerance (hand forgings)
h is height of rib, flange or bead
d is diameter of indentations
F is flash type
R is rounding/radius
ß is inboard draft angle
D is die closure tolerance
t
M is mismatch tolerance
t
5 General requirements
5.1 Technical conditions for inspection and delivery
Technical conditions for inspection and delivery of forgings are specified in EN 586-1.
5.2 Application of tolerances
The dimensional tolerances specified on drawings shall, in principle, conform to those laid down in this standard. If
no dimensional tolerances are specified on drawings, those given in this standard shall apply. In such cases it is
recommended that a suitable reference to this standard be made on drawings. If the purchaser requires tolerances
on individual dimensions tighter than those laid down in this standard, these shall be agreed with the supplier.
5.3 Summarised references
A summary of references to the applicable subclauses and tables covering the different types of characteristics
together with the basis on which tolerances are calculated is given in Table 1.
Table 1 – Summarised references
Characteristic Subclause Base Table reference
Die forgings 6.1
Die forgings without machining all over 6.1.2
Shape dimensions 6.1.2.2 n Table 3, Table 4
Die closure dimensions 6.1.2.4 t and A Table 5
max
Die forgings with machining all over 6.1.3
Shape dimensions 6.1.3.2 n Table 6
Die closure dimensions 6.1.3.4 n and A Table 7
max
Mismatch (offset) 6.1.4
Die forgings without machining all over 6.1.4.2 n Table 8
max
Die forgings with machining all over 6.1.4.3 n Table 9
max
Flash and fin projections 6.1.5 n Table 10, Table 11
max
R nominal
Roundings and transitions 6.1.6
A
Ejector marks 6.1.7 Table 12
Flatness and straightness 6.1.8 n Table 13
max
Angles 6.1.9 n Table 14
Hand forgings 6.2
Profile dimensions 6.2.2 n and t Table 15
max max
Flatness and straightness 6.2.3 n Table 16
max
5.4 Chemical composition
The chemical composition limits of the alloys shall be as specified in EN 573-3.
5.5 Alloy groups
For the purposes of this European Standard alloys are divided into two groups dependent on their shaping
capability. The division into Group I and Group II of these alloys is specified in Table 2.
The division into Class A and Class B alloys shall be as specified in EN 573-4. Class A covers aluminium and
aluminium alloys produced in large volume as forgings for which mechanical properties are specified in EN 586-2.
Class B covers aluminium and aluminium alloys produced in limited volume as forgings for which mechanical
properties are not specified.
Table 2 - Alloy Groups
Alloy Group I (forge with ease) Alloy Group II (difficult to forge)
Alloy designation Class Alloy designation Class
EN AW-1050A [AI 99,5] B EN AW-2011 [AI Cu6BiPb] B
EN AW-2014 [AI Cu4SiMg] A
EN AW-6005A [AI SiMg (A)] B EN AW-2017A [AI Cu4MgSi(A)] B
EN AW-2618A [AI Cu2Mg1,5Ni] B
EN AW-6060 [AI MgSi] B EN AW-2219 [AI Cu6Mn] B
EN AW-2024 [AI Cu4Mg1] A
EN AW-6061 [AI Mg1SiCu] B EN AW-2031 [AI Cu2,5NiMg] B
EN AW-4032 [AI Si12,5MgCuNi] B
EN AW-6082 [AI Si1MgMn] A EN AW-5454 [AI Mg3Mn] B
EN AW-5754 [AI Mg3] A
EN AW-5019 [AI Mg5] B
EN AW-5083 [AI Mg4,5Mn0, 7] A
EN AW-7010 [AI Zn6MgCu] B
EN AW-7012 [AI Zn6Mg2Cu] B
EN AW-7020 [AI Zn4,5Mg1] B
EN AW-7075 [AI Zn5,5MgCu] A
Other alloys shall be grouped as follows :
Alloy Group I
unalloyed aluminium ;
alloys Al Mn ;
alloys Al Mg with a maximum of 2,8 % Mg ;
alloys Al MgSi ;
Alloy Group II :
alloys Al Mg with more than 2,8% Mg ;
alloys Al CuMg ;
alloys Al ZnMg.
...
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