prEN ISO 5821
(Main)Resistance welding - Spot welding electrodes - Female electrode caps (ISO/DIS 5821:2024)
Resistance welding - Spot welding electrodes - Female electrode caps (ISO/DIS 5821:2024)
ISO 5821:2009 specifies the dimensions and tolerances of resistance spot welding electrode caps, where a female taper is used to fix the cap to an electrode adaptor.
ISO 5821:2009 applies only to electrode caps for which the electrode force given for diameters 13 mm, 16mm and 20 mm (taper 1:10) and for diameters 12,7 mm, 15,8 mm and 19,1 mm (taper 1:9,6) is not exceeded.
Widerstandsschweißen - Punktschweiß-Elektroden - Elektronenkappen mit Innenkegel (ISO/DIS 5821:2024)
Soudage par résistance - Électrodes pour soudage par points - Embouts amovibles femelles d'électrodes (ISO/DIS 5821:2024)
L'ISO 5821:2009 spécifie les dimensions et les tolérances des embouts amovibles de pointes d'électrodes pour le soudage par résistance par points, lorsqu'un cône femelle est utilisé pour fixer la pointe d'électrode à un embout amovible.
L'ISO 5821:2009 ne s'applique qu'aux embouts de pointes d'électrodes pour lesquels la force d'électrode donnée pour les diamètres 13 mm, 16 mm et 20 mm (cône 1:10) ainsi que pour les diamètres 12,7 mm, 15,8 mm et 19,1 mm (cône 1:9,6) n'excède pas les valeurs consignées.
Uporovno varjenje - Elektrode za točkovno varjenje - Kape elektrod z notranjim konusom (ISO/DIS 5821:2024)
General Information
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Standards Content (Sample)
SLOVENSKI STANDARD
01-oktober-2024
Uporovno varjenje - Elektrode za točkovno varjenje - Kape elektrod z notranjim
konusom (ISO/DIS 5821:2024)
Resistance welding - Spot welding electrodes - Female electrode caps (ISO/DIS
5821:2024)
Widerstandsschweißen - Punktschweiß-Elektroden - Elektronenkappen mit Innenkegel
(ISO/DIS 5821:2024)
Soudage par résistance - Électrodes pour soudage par points - Embouts amovibles
femelles d'électrodes (ISO/DIS 5821:2024)
Ta slovenski standard je istoveten z: prEN ISO 5821
ICS:
25.160.30 Varilna oprema Welding equipment
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
DRAFT
International
Standard
ISO/DIS 5821
ISO/TC 44/SC 6
Resistance welding — Spot welding
Secretariat: DIN
electrodes — Female electrode caps
Voting begins on:
ICS: 25.160.30
2024-08-12
Voting terminates on:
2024-11-04
THIS DOCUMENT IS A DRAFT CIRCULATED
FOR COMMENTS AND APPROVAL. IT
IS THEREFORE SUBJECT TO CHANGE
AND MAY NOT BE REFERRED TO AS AN
INTERNATIONAL STANDARD UNTIL
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This document is circulated as received from the committee secretariat.
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Reference number
ISO/DIS 5821:2024(en)
DRAFT
ISO/DIS 5821:2024(en)
International
Standard
ISO/DIS 5821
ISO/TC 44/SC 6
Resistance welding — Spot welding
Secretariat: DIN
electrodes — Female electrode caps
Voting begins on:
ICS: 25.160.30
Voting terminates on:
THIS DOCUMENT IS A DRAFT CIRCULATED
FOR COMMENTS AND APPROVAL. IT
IS THEREFORE SUBJECT TO CHANGE
AND MAY NOT BE REFERRED TO AS AN
INTERNATIONAL STANDARD UNTIL
PUBLISHED AS SUCH.
This document is circulated as received from the committee secretariat.
IN ADDITION TO THEIR EVALUATION AS
BEING ACCEPTABLE FOR INDUSTRIAL,
© ISO 2024
TECHNOLOGICAL, COMMERCIAL AND
USER PURPOSES, DRAFT INTERNATIONAL
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
STANDARDS MAY ON OCCASION HAVE TO
ISO/CEN PARALLEL PROCESSING
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on
BE CONSIDERED IN THE LIGHT OF THEIR
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Published in Switzerland Reference number
ISO/DIS 5821:2024(en)
ii
ISO/DIS 5821:2024(en)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Dimensions and tolerances . 1
5 Material. 4
6 Designation . 5
7 Labeling and marking . 5
7.1 Labeling . . .5
7.2 Marking .5
Annex A (informative) Alternative types and dimensions of female electrode caps . 6
Annex B (informative) Comparison of electrode tip shape names used in worldwide . 9
Bibliography .10
iii
ISO/DIS 5821:2024(en)
Foreword
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.
The procedures used to develop this document and those intended for its further maintenance are described
in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the different types
of ISO documents should be noted. This document was drafted in accordance with the editorial rules of the
ISO/IEC Directives, Part 2 (see www.iso.org/directives).
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. Details of any patent
rights identified during the development of the document will be in the Introduction and/or on the ISO list of
patent declarations received (see www.iso.org/patents).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and expressions
related to conformity assessment, as well as information about ISO's adherence to the World Trade
Organization (WTO) principles in the Technical Barriers to Trade (TBT), see www.iso.org/iso/foreword.html.
This document was prepared by Technical Committee ISO/TC 44, Welding and allied processes, Subcommittee
SC 6, Resistance welding and allied mechanical joining.
This third edition cancels and replaces the second edition (ISO 5821:2009), which has been technically
revised.
Official interpretations of TC 44 documents, where they exist, are available from this page:
https://committee.iso.org/sites/tc44/home/interpretation.html.
The main changes compared to the previous edition are as follows:
— Clause 4, Table 1 revised
— Clause 5, examples updated to new values in Table 1 and 2 more examples added for clarification
— Clause 7, labelling on the packages, and marking on each electrode cap surface
— Figure 1, updated with correct proportions
— Figure 2, added to know the variety of the water-cooling hole bottom profiles
— Annex A, changed to informative, and Table A.1, revised, some values from column R1 moved to new
column R2, denomination of comparable types completed, revised drawing (R to R2)
— Annex A, Figure A.1 and Clause A.4 updated.
— Annex B, added to show the comparative table of electrode tip shape names in some countries
iv
DRAFT International Standard ISO/DIS 5821:2024(en)
Resistance welding — Spot welding electrodes — Female
electrode caps
1 Scope
This document specifies the dimensions and tolerances of female electrode caps for resistance spot welding
of metallic materials.
Taper dimensions and tolerances of the electrode caps shall follow the values specified in ISO 1089.
NOTE Electrode caps with locking tapers are addressed in ISO 20168. Male electrode caps are specified in
ISO 5830.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content constitutes
requirements 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 1089, Resistance welding equipment — Electrode taper fits for spot welding equipment — Dimensions
ISO 5182, Resistance welding — Materials for electrodes and ancillary equipment
ISO 17677-1, Resistance welding — Vocabulary — Part 1: Spot, projection and seam welding
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 17677-1 apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https:// www .iso .org/ obp
— IEC Electropedia: available at https:// www .electropedia .org/
4 Dimensions and tolerances
The dimensions shall be as given in Table 1 and Figure 1 for taper 1:10. ISO 1089 shall be used to provide the
taper dimensions and tolerances. Tolerances other than taper fits shall be as given in Table 2.
Annex A addresses alternative types and dimensions of female electrode caps.
To enlarge the application potential of this document, common variations of the base types are specified in
Table 1. Preferred values are printed in bold-face.
ISO/DIS 5821:2024(en)
Table 1 — Dimensions for taper 1:10 (preferred values are printed in bold-face)
Dimensions in millimetres
α
Type d d l l l e R R
1 2 1 2 3 1 2
°
13 — — — 18,0 21,0 24,0 8,5 — — 30 65 100 — — — —
A0 16 — — — 20,0 23,0 25,0 10,5 — — 40 70 100 — — — —
20 — — — 22,0 25,0 28,0 12,0 — — 50 75 100 — — — —
13 5,0 6,0 7,0 18,0 21,0 24,0 8,5 — — 30 flat — — 30 45 —
B0 16 6,0 7,0 8,0 20,0 23,0 25,0 10,5 — — 40 flat 50 — 30 45 —
20 8,0 9,0 10,0 22,0 25,0 28,0 12,0 — — 50 flat 75 — 30 45 —
13 — — — 18,0 21,0 24,0 8,5 — — — — — — — — —
C0 16 — — — 20,0 23,0 25,0 10,5 — — — — — — — — —
20 — — — 22,0 25,0 28,0 12,0 — — — — — — — — —
13 5,0 — — 18,0 21,0 24,0 8,5 — 3,0 32 flat — — 30 45 60
D0 16 6,0 — — 20,0 23,0 25,0 10,5 — 4,0 40 flat — — 30 45 60
20 8,0 — — 22,0 25,0 28,0 12,0 — 5,0 50 flat — — 30 45 60
13 5,0 — — 18,0 21,0 24,0 8,5 — 4,0 — — — — 30 45 60
D1 16 6,0 — — 20,0 23,0 25,0 10,5 — 5,0 — — — — 30 45 60
20 8,0 — — 22,0 25,0 28,0 12,0 — 6,0 — — — — 30 45 60
a
13 — — — 18,0 21,0 24,0 8,5 — — 5 — — — 20 — —
a
E0 16 — — — 20,0 23,0 25,0 10,5 — — 6 — — — 20 — —
a
20 — — — 22,0 25,0 28,0 12,0 — — 8 — — — 20 — —
13 — — — 18,0 21,0 24,0 8,5 — — 6,5 — — — — — —
F0 16 — — — 20,0 23,0 25,0 10,5 — — 8 — — — — — —
20 — — — 22,0 25,0 28,0 12,0 — — 10 — — — — — —
13 5,0 5,5 6,0 18,0 21,0 24,0 8,5 — — 50 63 flat 6,5 — — —
F1 16 5,5 6,0 8,0 20,0 23,0 25,0 10,5 — — 50 80 flat 8,0 — — —
20 6,0 7,0 8,0 22,0 25,0 28,0 12,0 — — 50 100 flat 10,0 — — —
13 5,0 — — 18,0 21,0 24,0 8,5 10,5 — 32 — flat 5,0 — 15°20' —
G0 16 6,0 — — 20,0 23,0 25,0 10,5 12,0 — 40 — flat 6,0 15 17 —
20 8,0 — — 22,0 25,0 28,0 12,0 10,0 — 50 — flat 8,0 22,5 20 —
NOTE 1 For tolerances on dimensions, see Table 2.
NOTE 2 The taper dimensions and the tolerances should follow the values specified in ISO 1089.
a
Values l for Type E0 is resulting other dimensions d , l etc.
3 1 1
Two additional lengths, l , are offered to allow optimized lifetimes of the caps using tip dressers.
d and R allow options to adapt the contact areas to different electrode indentations and nugget sizes.
2 1
Rough estimated values of the maximum electrode force, F , given for diameter d of Table 1 are shown in
E 1
Table 3. The maximum value varies depending to the hardness of materials used for the electrode caps. See
ISO 5182 to find the hardness values.
Table 2 — Tolerances on dimensions
Dimension Tolerance
d ±0,15 mm
d ±0,2 mm
l ±0,5 mm
l See ISO 1089
l ±0,5 mm
c circularity
ISO/DIS 5821:2024(en)
TTabablele 2 2 ((ccoonnttiinnueuedd))
Dimension Tolerance
R ≤ 30 mm ±0,5 mm
R
R > 30 mm ±2,0 mm
R ±0,5 mm
α ±1°
c ±0,02 mm
c circularity
Table 3 — Maximum electrode force, F , given for diameter d , taper 1:10 (for information only)
E 1
Electrode force Electrode force
F F
d
E E
Hardness ≤ 150 HV Hardness > 150 HV
mm kN kN
13 2,5 3,5
16 4,0 5,5
20 6,3 7,5
Type A0 Type B0 Type C0
Ty
...
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