Aerospace series - Identification marking of engine items - Design standard

This standard:
-   describes the location and the layout of the marks of the item;
-   describes the marking processes to be used according to the environment and the function of the items;
-   determines the selection conditions of the marks;
-   determines the compatibility conditions of the marking processes with the constitution, the production and the use of the items.
This document applies to aerospace engine items and shall be used in conjunction with EN 4301.

Luft- und Raumfahrt - Kennzeichnung von Triebwerkbauteilen - Konstruktionsnorm

Diese Norm:
   beschreibt die Anordnung und Gestaltung der Bauteil-Kennzeichnungen;
   beschreibt die zu verwendenden Kennzeichnungsverfahren je nach Umgebung und Funktion der Bauteile;
   bestimmt die Auswahlbedingungen für die Kennzeichnung;
   bestimmt die Verträglichkeitsbedingungen für die Kennzeichnungsverfahren im Hinblick auf Aufbau, Fertigung und Verwendung der Bauteile.
Dieses Dokument gilt für Triebwerkbauteile der Luft- und Raumfahrt und muss in Verbindung mit EN 4301 angewendet werden.

Série aérospatiale - Marquage pour articles moteurs - Normes de conception

Aeronavtika - Označevanje delov motorja - Standard za projektiranje

General Information

Status
Published
Publication Date
15-Apr-2008
Technical Committee
Drafting Committee
Current Stage
9093 - Decision to confirm - Review Enquiry

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Standard
EN 4300:2008
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2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Aerospace series - Identification marking of engine items - Design standardMHSérie aérospatiale - Marquage pour articles moteurs - Normes de conceptionLuft- und Raumfahrt - Kennzeichnung von Triebwerkbauteilen - Konstruktionsnorm49.050Letalski in vesoljski motorji ter pogonski sistemiAerospace engines and propulsion systemsICS:SIST EN 4300:2008enTa slovenski standard je istoveten z:EN 4300:200801-julij-2008SIST EN 4300:2008SLOVENSKI

STANDARD

EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 4300April 2008ICS 49.050 English VersionAerospace series - Identification marking of engine items -Design standardSérie aérospatiale - Marquage pour articles moteurs -Normes de conceptionLuft- und Raumfahrt - Kennzeichnung vonTriebwerkbauteilen - KonstruktionsnormThis European Standard was approved by CEN on 29 February 2008.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the CEN 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 translationunder the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as theofficial versions.CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36

B-1050 Brussels© 2008 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 4300:2008: E

EN 4300:2008 (E) 2 Contents Page Foreword..............................................................................................................................................................3 1 Scope......................................................................................................................................................4 2 Normative references............................................................................................................................4 3 Abbreviation...........................................................................................................................................4 4 Presentation...........................................................................................................................................4 4.1 Definition................................................................................................................................................4 4.2 Marking...................................................................................................................................................5 4.3 Relationship between identifier and mark..........................................................................................5 5 Application of use..................................................................................................................................5 5.1 General....................................................................................................................................................5 5.2 Selection of the marks (see Table 3)....................................................................................................6 5.3 Selection of the marking locations......................................................................................................7 5.4 Selection of the marking processes....................................................................................................7 6 Information to be entered on the drawing...........................................................................................8 6.1 General....................................................................................................................................................8 6.2 Definition of the item.............................................................................................................................8 6.3 Location of indication marks................................................................................................................9 6.4 Automatic identification methods......................................................................................................10

EN 4300:2008 (E) 3 Foreword This document (EN 4300:2008) has been prepared by the Aerospace and Defence Industries Association of Europe - Standardization (ASD-STAN). After enquiries and votes carried out in accordance with the rules of this Association, this Standard has received the approval of the National Associations and the Official Services of the member countries of ASD, prior to its presentation to CEN. 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 October 2008, and conflicting national standards shall be withdrawn at the latest by October 2008. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom.

EN 4300:2008 (E) 4 1 Scope This standard:  describes the location and the layout of the marks of the item;  describes the marking processes to be used according to the environment and the function of the items;  determines the selection conditions of the marks;  determines the compatibility conditions of the marking processes with the constitution, the production and the use of the items. This document applies to aerospace engine items and shall be used in conjunction with EN 4301. 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 4301, Aerospace series — Identification marking methods for engine items. AS 478J, Identification Marking Methods. 1) 3 Abbreviation O.C.R. Optical Character Recognition 4 Presentation 4.1 Definition 4.1.1 Identity mark An identity is represented by a mark affixed by means of a marking process. An identity mark allows for example:  the identity of an item and its design origin;  the initial compliance of the item with its definition to be proved;  the data relating to the various stages of the item's life in production and in use to be traced (traceability);  the conditions of use to be specified;  etc. 4.1.2 Description of an identity mark An identity mark is information (coded identity or not), consisting of characters presented in a clear and orderly manner. A mark is characterised by a composition and a size and is applied directly to the item or to a separate support.

1) Published by: Society of Automotive Engineers (SAE), 400 Commonwealth Drive, Warrendale, PA 15096-0001 USA.

EN 4300:2008 (E) 5 4.2 Marking Marking is the action of affixing the marks on a medium (item, label, etc.). Marking is defined by a process (or several alternative processes) at a location identical for all the units of the same item. The marking process is selected according to:  its ability not to affect the material, the geometry or the characteristics of the item;  its ease of implementation;  its cost;  its long-term resistance. Selection shall be thorough. An ill-suited process or sign size may damage an item during the last phases of manufacturing. 4.3 Relationship between identifier and mark The following examples in Table 1 illustrate the relationship between identifier and mark. Table 1 Identity requirement Mark to be applied To identify item's definition. F0320 37356-12-6 To indicate the conditions of use. VENT BEFORE OPENING To state the compliance of an item with its definition.

(inspection punch)

To provide for traceability of the item. 12345678 (serial number) To specify a functional aspect of the item.

(flow direction of a fluid) To specify the condition of the item. REP R2738 (item having been subjected to repair) To specify a grade of material. • Colour dot on an elastomer seal

5 Application of use 5.1 General Minimum identification shall be provided to clearly identify the part and be compatible with the item and its environment. SX OCB

EN 4300:2008 (E) 6 5.2 Selection of the marks (see Table 3) 5.2.1 General Selection and layout of the marks shall not be detrimental to the function of the item. Avoid repeating existing marks. All the characters of all the identity marks shall be readable by a single means, whether automated or not. In the case of automated reading of codified identity marks, character readable identification should also be provided if possible. It is necessary to measure the size of the medium to be marked since the height chosen for the characters is to be as great as possible with respect to the space available. 5.2.2 Reduced markings for small items For small-size items and those difficult to mark, the number of marks placed on the actual item can be reduced. However when reduced marking is used, a tag or the packaging should bear all the information required by the definition. For non-serialised items, replace code 3 (serial number) with code 9 (manufacturing date). In some cases, only the production source's company monogram, code 6, is acceptable. The order of preference for using reduced marking is given below: EXAMPLES

Identification marks

Code (see EN 4301, Table 1) • Designer's company code : 2 • Item identification number : 1 • Production source's company code : 10 Preference 1

• Serial number (or manufacturing date) : 3 (or 9) • Item identification number : 1 • Production source's company code : 10 Preference 2

• Serial number (or manufacturing date) : 3 (or 9) • Production source's company monogram : 6 Preference 3

• Serial number (or manufacturing date) : 3 (or 9) Preference 4
• Production source's company monogram : 6

EN 4300:2008 (E) 7 5.3 Selection of the marking locations 5.3.1 General The surface selected for marking shall be such as to be accessible and compatible to the marking process, and adequate to contain all the marks. For replaceable elements, the location shall be selected such that, where possible, the marks remain visible after assembly. 5.3.2 Prohibited areas The application of marks is prohibited in the following areas:  proximity to fillet radius, chamfers and component edges or angled surface's because of the risk of stress cracking;  flow areas, because of the risk of flow disturbance;  assembly areas e.g. welding, clamping, bonding because of the risks of bearing surface defect, alignment defect, loss of clamping loads, contamination, etc.;  friction or sliding areas because of the risk of seizing, stiff points, etc.;  stressed areas, because of the cracks, fatigue, life cycle reduction, etc. The surface hardened (case hardening) hence embrittled areas shall be avoided, because of the risk of fatigue failure. 5.3.3 Restricted marking area If a designer specifies a specific controlled area to contain the marking (see 6.3.2), he shall first contact manufacturing, to ensure all relevant information can be fitted into that area. 5.3.4 For the pipe assemblies, tubing and electrical wiring A minimum of one mark shall be provided at or near one of the connection points. Where more than one mark is used on a tube run for ease of reading, inversion of every second group of marks is acceptable. 5.4 Selection of the marking processes 5.4.1 General Whatever the environment of the component the marking process chosen must ensure a permanent marking is achieved:  select the processes which can be applied to an item according to the selection of Table 3, i.e.:  geometry,  material,  environment,  function. Refer to 5.3 for the marking selection criteria and to Table 2 for the design criteria as given above, according to the marking process chosen;

EN 4300:2008 (E) 8  ensure that the process:  presents no danger to the item: risk of distortion, corrosion, embrittlement, etc.,  is compatible with the item's utilisation environment: temperature, fluids, etc.,  is compatible with the geometry of the location: accessibility, surface condition, etc.,  produces legible marks: contrast with the background, impastation, etc.;  examine the possibilities of later rework or additions: upgrading of the item to a new definition, application of repair, etc.;  if automatic identification and/or recording of the marks is required, refer to EN 4301; compatible O.C.R. marking processes are given in Table "Marking method codes, class letter and depth" of EN 4301. 5.4.2 Permanent marking process Permanent markings ensure identification during the normal service life of the item. Permanent markings are permitted on finished items only when specified by the engineering drawing from which the item is manufactured. Perm

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