1、ASD STANDARD NORME ASD ASD NORM prEN 2424 Edition P 1 December 2006 PUBLISHED BY THE AEROSPACE AND DEFENCE INDUSTRIES ASSOCIATION OF EUROPE - STANDARDIZATIONGulledelle 94 - B-1200 Brussels - Tel. + 32 2 775 8126 - Fax. + 32 2 763 3565 - www.asd-stan.orgICS: 49.030.60 Will supersede EN 2424:1995Descr
2、iptors: ENGLISH VERSION Aerospace series Marking of aerospace products Srie arospatiale Marquage des produits arospatiaux Luft- und Raumfahrt Kennzeichnung von Luft- und Raumfahrtteilen This “Aerospace Series“ Prestandard has been drawn up under the responsibility of ASD-STAN (The AeroSpace and Defe
3、nce Industries Association of Europe - Standardization). It is published for the needs of the European Aerospace Industry. It has been technically approved by the experts of the concerned Domain following member comments. Subsequent to the publication of this Prestandard, the technical content shall
4、 not be changed to an extent that interchangeability is affected, physically or functionally, without re-identification of the standard. After examination and review by users and formal agreement of ASD-STAN, it will be submitted as a draft European Standard (prEN) to CEN (European Committee for Sta
5、ndardization) for formal vote and transformation to full European Standard (EN). The CEN national members have then to implement the EN at national level by giving the EN the status of a national standard and by withdrawing any national standards conflicting with the EN. Edition approved for publica
6、tion 31 December 2006 Comments should be sent within six months after the date of publication to ASD-STAN Mechanical Domain Copyright 2006 by ASD-STAN prEN 2424:20062 Contents Page Foreword2 1 Scope 3 2 Normative references 3 3 Aim 3 4 Marking practice 4 Foreword This standard was reviewed by the Do
7、main Technical Coordinator of ASD-STANs Mechanical Domain. After inquiries and votes carried out in accordance with the rules of ASD-STAN defined in ASD-STANs General Process Manual, this standard has received approval for Publication. prEN 2424:20063 1 Scope This standard specifies the rules for th
8、e marking of aerospace products. It is applicable whenever referenced in the definition document of the product. 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 referen
9、ces, the latest edition of the referenced document (including any amendments) applies. TR 3198, Aerospace series Manufacturers identification monograms and marks for EN aerospace products. 1)3 Aim 3.1 General The marking allows the identification of the products and/or their manufacturer. 3.2 Produc
10、t identification All aerospace EN parts shall carry the EN part number if space is available; the EN part number shall take precedence over any manufacturers part number. The marking shall be as complete as possible. The marking styles shall be selected in accordance with the styles given in 4.2 bas
11、ed on the physical attributes of the component to be marked. Style A ensures a complete identification and is the preferred method for all parts. The other styles shall only be used when style A is not physically achievable or when specified in the product standard or definition document. Parts mark
12、ed in accordance with styles other than A will need a complementary check on parameters such as: form, dimensions, material, surface treatment etc. to completely define the product. 3.3 Manufacturer identification It is carried out by means of their monogram or name, see Table 1. It is the manufactu
13、rers responsibility to register their monograms with ASD-STAN, if they wish to manufacture EN parts which require marking in accordance with this standard. 1) Published as ASD Technical Report at the date of publication of this standard. prEN 2424:20064 4 Marking practice 4.1 Position It shall be ar
14、ranged so as: not to be detrimental to the function of the product; to ensure, as far as possible, product identification in the assembled condition. It shall be stated in the definition document for the product. 4.2 Marking style See Table 1. The marking style will depend on the space available and
15、 the style(s) chosen shall be quoted on the product definition. The styles below are given in order of preference of use (“A” being first), except when otherwise specified in the product standard or definition document. For products needing special identification that is not defined in Table 1 (for
16、instance: marking of the left-hand thread for threaded products), specific instructions shall be given in the definition document. Marking, additional to that defined in Table 1 on this specification, may be added at the manufacturers discretion, in order to prevent confusion with other standards sy
17、stems. (e.g. different raw materials) Table 1 Style Composition of marking Example Application A a) Identity block of the definition document of the product b) Manufacturers monogram a EN2932-060030 EN2997-RSO1814M7 This style is the preferred default marking method for all parts. B a) Identity bloc
18、k of the definition document of the product minus one or several codes b b) Manufacturers monogram a EN2888-080 EN3372-003 Products which cannot be marked according to style A. C a) Number of the definition document of the product b) Manufacturers monogram a EN3377 EN3360 Products which cannot be ma
19、rked according to styles A or B. D a) Number of the EN product standard b) Manufacturers monogram a 2584 E a) Last digit of the number of the EN product standard b) Manufacturers monogram a 4 Does not apply to the definition documents published since March 1988. continued prEN 2424:2006 5 Table 1 (c
20、oncluded) Style Composition of marking Example Application F Manufacturers monogram a Products which cannot be marked according to styles A, B, C, N or P. G a) Identity block of the definition document of the product. b) Manufacturers name or monogram a c) Batch number. d) Quantity or mass. EN2139-1
21、4016 Labels and/or packaging of products which cannot be marked. H a) One or several codes of the Identity block of the definition document of the product b) Manufacturers name or monogram a 050 Does not apply to the definition documents published since March 1994. N a) Identification of thread syst
22、em c b) Manufacturers monogram a Threaded products which can not be marked according to styles A, B, C or P. P a) Manufacturers monogram a b) Manufacturers part number c) Additional marking (e.g. date of manufacture: year, week) d For specific products which cannot be marked according to styles A, B
23、, C. aln accordance with TR 3198 for EN aerospace products. bFor bolts, the diameter code shall be mentioned in priority. cMJ or JM for metric J threads according to the manufacturers choice and UJ for UNJ threads in inches. dIf required by the definition document of the product. 4.3 Procedure All m
24、arkings shall be permanent and shall not prejudice the requirements or performance of the product. Unless the marking method is stated in the definition document of the product: the choice of the procedure is left to the option of the manufacturer; the marking shall be indented or embossed. The intr
25、usion or protrusion of the characters shall be comprised between 0,05 mm to 0,25 mm and shall remain within the dimensional tolerance envelope. 4.4 Legibility The marking shall be legible without magnification after a possible surface treatment. The character size shall not be less than 0,8 mm. The preferred character size is 1,5 mm. Where space will not permit, character height may be smaller than 0,8 mm but greater than 0,3 mm. If this character height requirement cannot be respected, the marking shall be made according type G.
