EN ISO 18278-1:2004

Resistance welding - Weldability - Part 1: Assessment of weldability for resistance spot, seam and projection welding of metallic materials (ISO 18278-1:2004)

ISO 18278-1:2004 recommends procedures for determining the generic weldability for resistance spot, seam and projection welding of metallic materials.
This procedure is applicable for the assessment of the weldability of uncoated/coated steels, stainless steels and non-ferrous alloys such as aluminium, titanium, magnesium and nickel and their alloys of single thickness lower than or equal to 5 mm.
The weldability of metallic materials in resistance welding is defined in terms of:
the ability to make the weld in the first place;
the ability to continue making welds;
the ability of the weld to withstand the imposed service stresses.
The procedures recommended in ISO 18278-1:2004 can be used to:
compare the weldability of different metallic materials;
compare the welding response of particular welding equipment and allow comparisons between different equipment and determine the influence of the static/dynamic properties of different welding equipment;
determine the weldability of a material when any welding configuration is changed e.g. electrode material and/or shape, water cooling requirements etc.;
investigate the effect of welding parameters such as welding current, weld time, electrode force or complex welding schedules including pulse welding, current stepping etc. on weldability.

Widerstandsschweißen - Schweißeignung - Teil 1: Bewerten der Schweißeignung zum Widerstandspunkt-, Rollennaht- und Buckelschweißen von metallischen Werkstoffen (ISO 18278-1:2004)

Diese Europäische Norm empfiehlt Verfahren für das grundsätzliche Bestimmen der Schweißeignung für das Widerstandspunkt-, Rollennaht- und Buckelschweißen von metallischen Werkstoffen.
Diese Verfahren sind anwendbar für das Bewerten der Schweißeignung von unbeschichtete/beschichtete Stähle, nicht rostende Stähle und Nichteisenmetallen wie Aluminium, Titan, Magnesium und Nickel sowie ihren Legierungen bei einer Einzeldicke kleiner oder gleich 5 mm.
Die Schweißeignung von metallischen Werkstoffen zum Widerstandsschweißen ist definiert durch:
- als erstes, die Fähigkeit die Schweißung herzustellen;
- die Fähigkeit die Schweißungen fortlaufend herzustellen;
- die Fähigkeit der Schweißung den auftretenden Betriebsbelastungen zu widerstehen.
Die in dieser Norm empfohlenen Verfahren können verwendet werden für:
- den Vergleich der Schweißeignung von verschiedenen metallischen Werkstoffen;
- den Vergleich des Schweißverhaltens einer einzelnen Schweißeinrichtung und ermöglicht Vergleiche zwischen verschiedenen Einrichtungen sowie für das Bestimmen des Einflusses der statischen/dynamischen Eigen-schaften von verschiedenen Schweißeinrichtungen;
- das Bestimmen der Schweißeignung eines Werkstoffs, wenn irgendein Teil der Schweißeinrichtung geändert wird, z. B. der Elektrodenwerkstoff und/oder dessen Form, Anforderungen an die Wasserkühlung usw.;
- das Untersuchen des Einflusses der Schweißparameter auf die Schweißeignung wie Schweißstrom, Schweißzeit, Elektrodenkraft oder komplizierte Schweißprogramme einschließlich Mehrimpulsschweißen, Stepperfunktionen für den Schweißstrom usw.

Soudage par résistance - Soudabilité - Partie 1 : Évaluation de la soudabilité pour le soudage par résistance par points, à la molette et par bossages des matériaux métalliques (ISO 18278-1:2004)

L'ISO 18278-1:2004 recommande les procédures à utiliser pour la détermination de la soudabilité des matériaux métalliques en soudage par résistance par points, à la molette et par bossages des matériaux métalliques.
Ces procédures sont applicables à l'évaluation de la soudabilité des aciers revêtus ou non revêtus, des aciers inoxydables et des alliages non ferreux tels que l'aluminium, le titane, le magnésium et le nickel ainsi qu'à leurs alliages en simple épaisseur inférieure ou égale à 5 mm.
La soudabilité des matériaux métalliques en soudage par résistance est définie en termes d'aptitude à l'exécution d'une première soudure; d'aptitude à la poursuite de l'exécution des soudures; d'aptitude de la soudure à supporter les contraintes de services imposées.
Les procédures recommandées dans l'ISO 18278-1:2004 peuvent être utilisées afin de comparer la soudabilité de différents matériaux métalliques; de comparer le comportement lors du soudage d'un matériel de soudage particulier et de permettre la comparaison entre différents matériels et déterminer l'influence des caractéristiques statique et dynamique de différents matériels de soudage; de déterminer la soudabilité d'un matériau lorsque la configuration du soudage est modifiée, par exemple matériau et/ou forme de l'électrode, exigences relatives au refroidissement par eau, etc.; d'étudier les effets des paramètres de soudage tels que le courant de soudage, le temps de soudage, la force de soudage ou les programmes de soudage complexes incluant le soudage avec pulsations, les courants étagés, etc.

Elektrouporovno varjenje – Varivost – 1. del: Ocenjevanje varivosti pri uporovnem točkovnem, kolutnem in bradavičnem varjenju kovinskih materialov (ISO 18278-1:2004)

General Information

• Status: Withdrawn
• Publication Date: 31-Oct-2004
• Withdrawal Date: 21-Apr-2015
• ICS: 25.160.10 - Welding processes
• Technical Committee: CEN/TC 121 - Welding
• Drafting Committee: CEN/TC 121/SC 4 - Quality management in the field of welding
• Current Stage: 9960 - Withdrawal effective - Withdrawal
• Completion Date: 22-Apr-2015
• Ref Project: SIST EN ISO 18278-1:2005 - Resistance welding - Weldability - Part 1: Assessment of weldability for resistance spot, seam and projection welding of metallic materials (ISO 18278-1:2004)

Relations

• Replaced By: EN ISO 18278-1:2015 - Resistance welding - Weldability - Part 1: General requirements for the evaluation of weldability for resistance spot, seam and projection welding of metallic materials (ISO 18278-1:2015)
• Effective Date: 29-Apr-2015

Standards Content (Sample)

SLOVENSKI STANDARD
01-januar-2005
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WRþNRYQHPNROXWQHPLQEUDGDYLþQHPYDUMHQMXNRYLQVNLKPDWHULDORY,62

Resistance welding - Weldability - Part 1: Assessment of weldability for resistance spot,
seam and projection welding of metallic materials (ISO 18278-1:2004)
Widerstandsschweißen - Schweißeignung - Teil 1: Bewerten der Schweißeignung zum
Widerstandspunkt-, Rollennaht- und Buckelschweißen von metallischen Werkstoffen
(ISO 18278-1:2004)
Soudage par résistance - Soudabilité - Partie 1 : Évaluation de la soudabilité pour le
soudage par résistance par points, a la molette et par bossages des matériaux
métalliques (ISO 18278-1:2004)
Ta slovenski standard je istoveten z: EN ISO 18278-1:2004
ICS:
25.160.10 Varilni postopki in varjenje Welding processes
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN ISO 18278-1
NORME EUROPÉENNE
EUROPÄISCHE NORM
November 2004
ICS 25.160.10
English version
Resistance welding - Weldability - Part 1: Assessment of
weldability for resistance spot, seam and projection welding of
metallic materials (ISO 18278-1:2004)
Soudage par résistance - Soudabilité - Partie 1 : Évaluation Widerstandsschweißen - Schweißeignung - Teil 1:
de la soudabilité pour le soudage par résistance par points, Bewerten der Schweißeignung zum Widerstandspunkt-,
à la molette et par bossages des matériaux métalliques Rollennaht- und Buckelschweißen von metallischen
(ISO 18278-1:2004) Werkstoffen (ISO 18278-1:2004)
This European Standard was approved by CEN on 24 June 2004.
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 Central Secretariat 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 Central Secretariat has the same status as the official
versions.
CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,
Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia,
Slovenia, 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
© 2004 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 18278-1:2004: E
worldwide for CEN national Members.

Contents
page
Foreword.3
1 Scope .4
2 Normative references .4
3 Terms and definitions .5
4 Test procedures.5
4.1 General.5
4.2 Basic test procedures .6
4.2.1 Determination of the ability to make a weld.6
4.2.2 Determination of the ability to continue making welds .6
4.2.3 Determination of the weld properties .7
4.3 Additional tests.8
4.3.1 General.8
4.3.2 Hold time sensitivity procedure .8
5 Further weld properties.8
6 Test report .9
Bibliography .10

Foreword
This document (EN ISO 18278-1:2004) has been prepared by Technical Committee CEN/TC 121 “Welding”, the
secretariat of which is held by DIN, in collaboration with Technical Committee ISO/TC 44 “Welding and allied
processes”.
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 May 2005, and conflicting national standards shall be withdrawn at the latest by
May 2005.
This standard consists of the following parts:
 Part 1: Assessment of weldability for resistance spot, seam and projection welding of metallic materials;
 Part 2: Alternative procedures for the assessment of sheet steels for spot welding.
This document 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, Cyprus, Czech Republic, Denmark,
Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta,
Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.

1 Scope
This document recommends procedures for determining the generic weldability for resistance spot, seam and
projection welding of metallic materials.
This procedures is applicable for the assessment of the weldability of uncoated/coated steels, stainless steels and
non-ferrous alloys such as aluminium, titanium, magnesium and nickel and their alloys of single thickness lower
than or equal to 5 mm.
The weldability of metallic materials in resistance welding is defined in terms of:
 the ability to make the weld in the first place;
 the ability to continue making welds;
 the ability of the weld to withstand the imposed service stresses.
The procedures recommended in this standard can be used to:
 compare the weldability of different metallic materials;
 compare the welding response of a particular welding equipment and allow comparisons between different
equipment and determine the influence of the static/dynamic properties of different welding equipment;
 determine the weldability of a material when any welding configuration is changed e.g. electrode material
and/or shape, water cooling requirements etc.;
 investigate the effect of welding parameters such as welding current, weld time, electrode force or complex
welding schedules including pulse welding, current stepping etc. on weldability.
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.
EN ISO 8166, Resistance welding — Procedure for the evaluation of the life of spot welding electrodes using
constant machines settings (ISO 8166:2003).
EN ISO 14270, Specimen dimensions and procedure for mechanized peel testing resistance spot, seam and
embossed projection welds (ISO 14270:2000).
EN ISO 14271, Vickers hardness testing of resistance spot, projection and seam welds (low load and
microhardness) (ISO 14271:2000).
EN ISO 14272, Specimen dimensions and procedure for cross tension testing resistance spot and embossed
projection welds (ISO 14272:2000).
EN ISO 14273, Specimen dimensions and procedure for shear testing resistance spot, seam and embossed
projection welds (ISO 14273:2000).
EN ISO 14327, Resistance welding — Procedures for determining the weldability lobe for resistance spot,
projection and seam welding (ISO 14327:2004).
EN ISO 14329:2003, Resistance welding — Destructive tests of welds — Failure types and geometric
measurements for resistance spot, seam and projection welds (ISO 14329:2003).
EN ISO 15609-5, Specification and qualification of welding procedures for metallic materials — Welding procedure
specification — Part 5: Resistance welding (ISO 15609-5:2004).
EN ISO 15614-12, Specification and qualification of welding procedures for metallic materials — Welding
procedure test — Part 12: Spot, seam and projection welding (ISO 15614-12:2004).
EN ISO 18278-2:2004, Resistance welding — Weldability — Part 2: Alternative procedures for the asses
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