SIST EN 15085-6:2022

Railway applications - Welding of railway vehicles and components - Part 6: Maintenance welding requirements

This document defines the quality requirements as well as the design and production requirements for welding to be followed by manufacturers during maintenance or maintenance activities on railway vehicles and components.

Bahnanwendungen - Schweißen von Schienenfahrzeugen und -fahrzeugteilen - Teil 6: Anforderungen für die schweißtechnische Instandsetzung

Dieses Dokument legt die Qualitätsanforderungen sowie die Gestaltungs- und Herstellungsanforderungen für Schweißarbeiten fest, die von den Herstellern während der Instandhaltung oder Instandhaltungsarbeiten an Schienenfahrzeugen und -fahrzeugteilen zu beachten sind.

Applications ferroviaires - Soudage des véhicules et des composants ferroviaires - Partie 6 : Exigences pour le soudage en maintenance

Ce document définit les exigences de qualité ainsi que les exigences de conception et de production en matière de soudage que doivent respecter les constructeurs au cours de l'entretien ou des activités de maintenance des véhicules et composants ferroviaires.

Železniške naprave - Varjenje železniških vozil in komponent - 6. del: Zahteve za vzdrževalno varjenje

General Information

• Status: Published
• Public Enquiry End Date: 31-Aug-2020
• Publication Date: 13-Nov-2022
• ICS: 25.160.10 - Welding processes
• ICS: 45.060.01 - Railway rolling stock in general
• Technical Committee: IŽNP - Reilway applications
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 28-Oct-2022
• Due Date: 02-Jan-2023
• Completion Date: 14-Nov-2022
• Directive: 2016/797/EU - Directive (EU) 2016/797 of the European Parliament and of the Council of 11 May 2016 on the interoperability of the rail system within the European Union (Text with EEA relevance)
• Mandate: M/483 - Mandate for programming and standardisation addressed to the European standardisation bodies under directive 2008/57/EC in the field of the interoperability of the rail system within the European Union
• Mandate: M/591 - Standardisation request to the European Committee for Standardisation and the European Committee for Electrotechnical Standardisation as regards railway products in support of Directive (EU) 2016/797
• Ref Project: EN 15085-6:2022 - Railway applications - Welding of railway vehicles and components - Part 6: Maintenance welding requirements

Overview

EN 15085-6:2022 - part of the CEN EN 15085 series - specifies the quality, design and production requirements for welding carried out during maintenance of railway vehicles and components. It defines how maintenance welding shall be planned, executed and documented to maintain safety and conformity with the wider EN 15085 welding framework for rolling stock.

Key topics and technical requirements

• Scope and purpose: Applies to welding of metallic materials during maintenance and repair activities on railway vehicles and components; links weld performance classes defined in design to inspection and documentation requirements.
• Quality requirements: Maintenance welding shall comply with EN 15085-4 (production requirements) and the EN ISO 3834 family for welding quality.
• Welding coordination: A designated welding coordinator is required; for maintenance welding the coordinator must demonstrate documented experience in maintenance activities.
• Conditions for welding:
  • Preferably performed in a suitable workshop.
  • Welding outside a workshop is allowed only when environmental and accessibility conditions are controlled and documented.
  • Temporary welding to enable safe transfer/running is treated separately and is not classed as maintenance welding under this standard; such actions must be documented.
• Design and testing:
  • Rules for determining applicable weld performance classes for components fabricated before modern design standards or with no drawings.
  • Applicable testing requirements and additional production tests for welded assemblies are specified.
• Preparation and documentation:
  • Requirement for welding plans, clear vehicle documentation (vehicle file), and maintenance plans before work begins.
  • Change control: repeated damage or design changes introduced by maintenance welding must be communicated to relevant parties.
• Additional requirements:
  • Special provisions for high-strength steels (e.g., ReH > 690 MPa), cold-formed regions, parent-metal weldability verification, and weld performance class CP A procedures and testing.

Practical applications

• Ensures safe, repeatable repair procedures for rolling stock maintenance shops, depot workshops and on-site repair teams.
• Guides development of maintenance welding procedures, welding plans and inspection regimes for in-service repairs.
• Supports conformity evidence for vehicle return-to-service decisions and for inclusion in the vehicle file and maintenance plan.

Who should use this standard

• Rolling stock maintenance organizations and depot managers
• Welding coordinators and welding engineers in the rail sector
• Manufacturers performing in-service repairs or retrofits
• Certification bodies and auditors assessing compliance with railway welding requirements

Related standards

• EN 15085 series (Parts 1–5) - General, manufacturer, design, production, inspection
• EN ISO 3834 series - Quality requirements for fusion welding
• EN 17018, EN 13306 and EN ISO 15614 series - maintenance terminology and welding procedure qualification

Keywords: EN 15085-6:2022, maintenance welding, railway vehicles, welding requirements, welding coordinator, weld performance class, rolling stock maintenance.

Standards Content (Sample)

SLOVENSKI STANDARD
01-december-2022
Železniške naprave - Varjenje železniških vozil in komponent - 6. del: Zahteve za
vzdrževalno varjenje
Railway applications - Welding of railway vehicles and components - Part 6:
Maintenance welding requirements
Bahnanwendungen - Schweißen von Schienenfahrzeugen und -fahrzeugteilen - Teil 6:
Anforderungen für die schweißtechnische Instandsetzung
Applications ferroviaires - Soudage des véhicules et des composants ferroviaires - Partie
6 : Exigences pour le soudage en maintenance
Ta slovenski standard je istoveten z: EN 15085-6:2022
ICS:
25.160.10 Varilni postopki in varjenje Welding processes
45.060.01 Železniška vozila na splošno Railway rolling stock in
general
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN 15085-6
EUROPEAN STANDARD
NORME EUROPÉENNE
October 2022
EUROPÄISCHE NORM
ICS 25.160.10; 45.060.01
English Version
Railway applications - Welding of railway vehicles and
components - Part 6: Maintenance welding requirements
Applications ferroviaires - Soudage des véhicules Bahnanwendungen - Schweißen von
ferroviaires et des pièces - Partie 6 : Exigences de Schienenfahrzeugen und -fahrzeugteilen - Teil 6:
soudage en maintenance Anforderungen für die schweißtechnische
Instandsetzung
This European Standard was approved by CEN on 17 January 2022.

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 CEN-CENELEC 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 CEN-CENELEC Management
Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2022 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 15085-6:2022 E
worldwide for CEN national Members.

Contents
European foreword . 3
Introduction . 4
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 6
4 Quality requirements for welding during maintenance . 7
4.1 General . 7
4.2 Welding coordination . 7
4.3 Conditions for welding . 7
4.3.1 General . 7
4.3.2 Welding outside a workshop . 7
4.3.3 Welding to enable running for transfer purposes . 7
4.4 Restrictions or prohibitions of welding . 8
5 Design requirements for components manufactured prior to the implementation of
EN 15085-3:- or where no manufacturing drawings exist . 8
5.1 Determination of the applicable weld performance classes . 8
5.2 Applicable testing requirements . 9
6 Preparation before maintenance welding . 10
6.1 Welding plans . 10
6.2 Additional production tests on welded assemblies . 10
7 Additional Requirements . 10
7.1 General . 10
7.2 Weld performance class CP A . 10
7.2.1 General . 10
7.2.2 Welding procedure specification . 10
7.2.3 Additional testing . 11
7.2.4 Inspection and testing of welded joint . 11
7.3 Parent metals . 11
7.3.1 Weldability of parent material - determination of material type/grade . 11
7.3.2 Steel with ReH > 690 MPa, cold rolled steel and aluminium . 11
7.3.3 Welding in cold formed areas . 11
Annex ZA (informative) Relationship between this European Standard and the Essential
Requirements of EU Directive 2016/797/EU aimed to be covered . 12
Bibliography . 14

European foreword
This document (EN 15085-6:2022) has been prepared by Technical Committee CEN/TC 256 “Railway
applications”, the secretariat of which is held by DIN.
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 2023, and conflicting national standards shall be
withdrawn at the latest by April 2023.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This series of European Standards EN 15085 “Railway applications — Welding of railway vehicles and
components” consists of the following parts:
— Part 1: General;
— Part 2: Requirements for welding manufacturers;
— Part 3: Design requirements;
— Part 4: Production requirements;
— Part 5: Inspection, testing and documentation;
— Part 6: Maintenance welding requirements.
This document has been prepared under a Standardization Request given to CEN by the European
Commission and the European Free Trade Association, and supports essential requirements of EU
Directive(s) / Regulation(s).
For relationship with EU Directive(s) / Regulation(s), see informative Annex ZA, which is an integral part
of this document.
Any feedback and questions on this document should be directed to the users’ national standards body.
A complete listing of these bodies can be found on the CEN website.
According to the CEN-CENELEC Internal Regulations, the national standards organisations of the
following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia,
Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland,
Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of North
Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and the United
Kingdom.
Introduction
Welding is a special process in the manufacture of railway vehicles and their parts. The required
provisions for this process are laid down in the standards series EN ISO 3834. The basis of these
provisions is the basic technical welding standards with respect to the special requirements for the
construction of railway vehicles.
This series of standards applies to welding of metallic materials in the manufacture and maintenance of
railway vehicles and their parts.
It describes the control for the welding process for railway vehicles and their components for new
manufacture and maintenance.
With respect to the railway environment, this series of standards defines the quality requirements for the
welding manufacturer to undertake new building and repair work.
Components, parts and subassemblies are assigned a classification level, based on their safety relevance.
According to these levels, qualifications for welding personnel of the manufacturer are specified.
This series provides an essential link between the weld performance class defined during design, the
quality of the weld, and the demonstration of the required quality by inspection.
This series of standards does not deal with product qualification.
NOTE This series standard can also be used by internal and external parties, including certification bodies, to
assess the organization's ability to meet customer, regulatory and the organization's own requirements.
1 Scope
This document defines the quality requirements as well as the design and production requirements for
welding to be followed by manufacturers during maintenance or maintenance activities on railway
vehicles and components.
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.
EN 13306:2017, Maintenance — Maintenance terminology
EN 15085-1: - , Railway applications — Welding of railway vehicles and components — Part 1: General
EN 15085-2:2020, Railway applications — Welding of railway vehicles and components — Part 2:
Requirements for welding manufacturer
EN 15085-3:- , Railway applications — Welding of railway vehicles and components —Part 3: Design
requirements
EN 15085-4:- , Railway applications — Welding of railway vehicles and components — Part 4: Production
requirements
EN 15085-5:- , Railway applications — Welding of railway vehicles and components — Part 5: Inspection,
testing and documentation
EN 17018:2019, Railway applications — Rolling stock maintenance — Terms and definitions
EN ISO 3834-1:2021, Quality requirements for fusion welding of metallic materials — Part 1: Criteria for
the selection of the appropriate level of quality requirements (ISO 3834-1:2021)
EN ISO 3834-2:2021, Quality requirements for fusion welding of metallic materials — Part 2:
Comprehensive quality requirements (ISO 3834-2:2021)
EN ISO 3834-3:2021, Quality requirements for fusion welding of metallic materials — Part 3: Standard
quality requirements (ISO 3834-3:2021)
EN ISO 3834-4:2021, Quality requirements for fusion welding of metallic materials — Part 4: Elementary
quality requirements (ISO 3834-4:2021)
EN ISO 3834-5:2021, Quality requirements for fusion welding of metallic materials — Part 5: Documents
with which it is necessary to conform to claim conformity to the quality requirements of ISO 3834-2, ISO
3834-3 or ISO 3834-4 (ISO 3834-5:2021)
EN ISO 15613:2004, Specification and qualification of welding procedures for metallic materials —
Qualification based on pre-production welding test (ISO 15613:2004)

Under preparation. Stage at time of publication: prEN 15085-1:2021.
Under preparation. Stage at time of publication: FprEN 15085-3:2022.
Under preparation. Stage at time of publication: prEN 15085-4:2020.
Under preparation. Stage at time of publication: prEN 15085-5:2020.
EN ISO 15614-1:2017, Specification and qualification of welding procedures for metallic materials —
Welding procedure test — Part 1: Arc and gas welding of steels and arc welding of nickel and nickel alloys
(ISO 15614-1:2017, Corrected version 2017-10-01)
EN ISO 15614-2:2005, Specification and qualification of welding procedures for metallic materials —
Welding procedure test — Part 2: Arc welding of aluminium and its alloys (ISO 15614-2:2005)
EN ISO 15614-3:2008, Specification and qualification of welding procedures for metallic materials —
Welding procedure test — Part 3: Fusion welding of non-alloyed and low-alloyed cast irons (ISO 15614-
3:2008)
EN ISO 15614-4:2005, Specification and qualification of welding procedures for metallic materials —
Welding procedure test — Part 4: Finishing welding of aluminium castings (ISO 15614-4:2005)
EN ISO 15614-7:2019, Specification and qualification of welding procedures for metallic materials —
Welding procedure test — Part 7: Overlay welding (ISO 15614-7:2016)
EN ISO 15614-11:2002, Specification and qualification of welding procedures for metallic materials —
Welding procedure test — Part 11: Electron and laser beam welding (ISO 15614-11:2002)
EN ISO 15614-12:2014, Specification and qualification of welding procedures for metallic materials —
Welding procedure test — Part 12: Spot, seam and projection welding (ISO 15614-12:2014)
EN ISO 15614-13:2012, Specification and qualification of welding procedures for metallic materials —
Welding procedure test — Part 13: Upset (resistance butt) and flash welding (ISO 15614-13:2012)
CEN ISO/TR 15608:2017, Welding — Guidelines for a metallic materials grouping system
3 Terms and definitions
For the purposes of this document, the terms and definitions given in EN 15085-1:- , EN 17018:2019 and
in EN 13306:2017 as well as the following apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at http://www.iso.org/obp
— IEC Electropedia: available at http://www.electropedia.org/
3.1
repair
physical action taken to restore the required function of an entity treated either in position or removed
3.2
maintenance plan
railway vehicle or component based structured document containing a set of planned maintenance
activities and their maintenance interval limits based upon information in the maintenance manual
[SOURCE: EN 17018:2019, 3.1.4]

Document impacted by A1:2019.
Document impacted by AC:2007.
3.3
vehicle file
collection of documents containing evidence to prove that the
...