1、AECMA STANDARD prEN 4408-1 NORME AECMA Edition P I AECMA NORM June 2002 PUBLISHED BY THE EUROPEAN ASSOCIATION OF AEROSPACE INDUSTRIES - STANDARDIZATION k Gulledelle 94 - B-1200 6nissels - Tel. + 32 2 775 81 10 - Fax. + 32 2 775 81 11 - www.aecma-stan.org ICs: Edition approved for publication 28June2
2、002 ENGLISH VERSION Comments should be sent within six months afier the date of publication to Gulledelle 94 Procedure and Process Domain AECM A-STAN 6-1200 BRUXELLES Aerospace series Technical drawings Representation of parts made of composite materials Part 1: General rules Srie arospatiale Dessin
3、s techniques Reprsentation des articles en matriaux composites Partie 1 : Rgles gnrales Luft- und Raumfahrt Technische Zeichnungen Darstellung von Teilen aus Verbundwerkstoffen Teil I: Allgemeine Regeln This “Aerospace Series“ Prestandard has been drawn up under the responsibility of AECMA-STAN (The
4、 European Association of Aerospace Industries - Standardization). It is published on green paper for the needs of the European Aerospace lndustty. It has been technically approved by the experts of the concerned Domain following member comments. Subsequent to the publication of this Prestandard, the
5、 technical content shall not be changed to an extent that interchangeability is affected, physically or functionallyl without re-identification of the standard. After examination and review by users and formal agreement of AECMA-STAN it will be submitted as a draft European Standard to CEN (European
6、 Committee for Standardization) for formal vote. Page 2 prEN 4408-1 : 2002 Foreword This standard has been prepared by former AECMA-CN CO and was reviewed by the Domain Technical Coordinator of AECMA-STANS Process Domain. Contents 1 2 3 4 4.1 4.2 5 6 6.1 6.2 6.3 6.4 7 8 9 10 10.1 10.2 I1 12 13 14 An
7、nex A Page Scope Normative references . Terms and definitions 4 Drawing presentation General rules . Specific rules . Title block inscriptions . 5 Title block indications . 5 General tolerances . . . 5 Dimensioning principle 6 Image ._ . . 6 Notes on drawings 6 Thickness of parts . 6 General case (s
8、tructural function) 6 Direction key . 7 Definition of laminate aeras 7 Material identification 7 Lay-up diagram . 7 Special case (other functions) . . . 6 (informative) Bibliograph y . 9 Page 3 prEN 4408-1 : 2002 1 Scope This standard specifies the general rules for the representation of parts made
9、of composite materials, in technical drawings. It applies to aerospace structures using composites materials, and their applications when this standard is specified. 2 Normative references This European Standard incorporates by dated or undated reference, provisions from other publications. These no
10、rmative references are cited at the appropriate places in the text and the publications are listed hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply to this European Standard only when incorporated in it by amendment or revision. For undated re
11、ferences the latest edition of the publication referred to applies. IS0 128 (all parts) Technical drawings - General principles of presentation IS0 129 IS0 406 IS0 1101 IS0 3098-2 IS0 5455 IS0 5456-1 IS0 5456-2 IS0 5456-3 IS0 5456-4 IS0 7200 IS0 10579 EN 4408-2 EN 4408-3 EN 4408-4 EN 4408-5 EN 4408-
12、6 Technical drawings - Dimensioning - General principles, definitions, methods of execution and special indications Technical drawings - Tolerancing of linear and angular dimensions Technical drawings - Geometrical tolerancing - Tolerances of form, orientation, location and run-out - Generalities, d
13、efinitions, symbols, indications on drawings Technical product documentation - Lettering - Part 2: Latin alphabet, numerals and marks Technical drawings - Scales Technical drawings - Projection methods - Part 1 : Synopsis Technical drawings - Projection methods - Part 2: Orthographic representations
14、 Technical drawings - Projection methods - Part 3: Axonometric representations Technical drawings - Projection methods - Part 4: Central projection Technical drawings - Title blocks Technical drawings - Dimensioning and tolerancing - Non-rigid parts Aerospace series - Technical drawings - Representa
15、tion of parts made of composite materials - Part 2: Laminated parts 1) Aerospace series - Technical drawings - Representation of parts made of composite materials - Part 3: Parts including core materials 1) Aerospace series - Technical drawings - Representation of parts made of composite materials -
16、 Part 4: Items obtained by winding 1) Aerospace series - Technical drawings - Representation of parts made of composite materiais - Part 5: Seams 1) Aerospace series - Technical drawings - Representation of parts made of composite materials - Part 6: Preforms 1) 1) Published as AECMA Prestandard at
17、the date of publication of this standard Page 4 prEN 4408-1 : 2002 3 Terms and definitions For the purposes of this standard, the following terms and definitions apply: 3.1 direction key identification on the drawing, linked to the part, according to which the directions of the lay-up diagram are de
18、fined 3.2 laminate Lvvu l I e layers cured together bii.rr rrr mnr 3.3 laminating process or operation binding two or more layers of material 3.4 laminate aera it allows the variations in layer arrangements (thickness) of a laminated part to be distinguished by a particular identification A laminate
19、 aera defined ty a structure of layers (fabric, web, roving, fibre or core material). 3.5 laminate motif subassembly made of several layers or plies 3.6 lay-up diagram lay-up diagram listing the designers requirements relative to the part for a given function It defines the layers with respect to ea
20、ch other, gives their directions and completes the image and its direction key. 3.7 layer element or set of elements at a given levei One layer may be made of several plies. 3.8 elementary part of a laminate with only one fibre or fabric direction PlY NOTE Ply also designates the same element before
21、 laminating 4 Drawing presentation The definition of a part made of composite materials includes a geometrical representation, applying general representation rules, as well as a schematic representation, applying particular rules; the whole allows for the identification of each element making up th
22、e part. Page 5 prEN 4408-1 : 2002 4. I General rules Drawings of parts made of composite materials are represented in compliance with the standardisation rules defined by the following standards: - IS0 128 - IS0 129 - IS0 3098-2 - IS0 5455 - IS0 5456 These rules are completed by this standard. 4.2 S
23、pecific rules Specific rules for the drawing representation of parts made of composite materials are contained in the following standards: - EN4408-2 - EN4408-3 - EN4408-4 - EN4408-5 - EN4408-6 5 Title block inscriptions Rules for the representation and use of the title block are given in IS0 7200.
24、6 Title block indications 6.1 General tolerances General dimensional tolerances shall comply with the requirements of IS0 406 and IS0 1101 unless otherwise indicated in the drawing. 6.2 Marking Recommended markings are mainly made with ink or paint. 6.3 Serialisation Serialisation shall comply with
25、the companys particular specifications. 6.4 Manufacturing conditions Manufacturing conditions may be subject to requirements given in a reference document on definition (for example the drawing). Page 6 prEN 4408-1 : 2002 7 Dimensioning principle Traditionally, the definition of each part given in a
26、 drawing applies to the unassembled part, ready for mounting and under the following environmental conditions: - ambient temperature: (20 i 0,5) OC; - relative hiimidity: (50 t 10) /o. The rules for deformable parts defined in IS0 10579 shall be observed. 8 Image Representation rules shall comply wi
27、th IS0 128 et IS0 129. 9 Notes on drawings To keep the “image“ part of the drawing as readable as possible, requirements may be expressed in the form of notes which shall preferably be placed above the title block. If possible, the content of the notes shall be standardised, succint, and sufficient
28、in order to avoid any ambiguity. 10 Thickness of parts 10.1 General case (structural function) No thickness indication shall be given on the drawings, the thickness resulting from the number of layers, the elaboration and abtation method, etc. The basic thickness of the layers has to be summarised i
29、n a table which is called lay-up diagram. 10.2 Special case (other functions) The thickness of parts in areas such as crimping areas, ., has to be dimensioned at the crimping point or .; in this case, the application area (localisation or dimension) shall be dimensioned and the thickness shall be sp
30、ecified in a note on the design document (see figure 1). Dimensions in millimetres ,-o_j a The thickness in this aera shall be equal to (x I y) mm. Figure 1 - Specification of thickness on design documents Page 7 prEN 4408-1: 2002 11 Direction key Traditionaly, the reference direction for fibre, the
31、 fibre direction for web and tape of honeycomb material is the warp direction. The direction key shall be associated with a geometrical view of the part. Example (see figure 2): only one key per lay-up diagram, the O“ direction of the orientation key is chosen by the designer who shall guarantee the
32、 correct the drawing, the 3rd direction is perpendicular to the X (O“) et Y (90“) axes; the + direction corresponds traditional direction of a direct axis system. 90“ - 90“ Figure 2 - Direction key Definition of laminate aeras use of to the A laminate area is defined by an arrangement of layers (fab
33、ric, web, roving, fibre or core material). The areas are identified by a letter followed by a number. 13 Material identification The materials which make up the part are identified in the lay-up diagram in a note or are clearly indicated. 14 Lay-up diagram The lay-up diagram indicates area by aera (
34、see figure 3): - the identification of the aera; - identification of the different elements making up the part (fabric, core material, web, adhesives, etc.); - direction of theses different elements; - theoretical ply thickness (fabric and web); - symbol for the direction of fabric, web, roving, fib
35、re, core material. This arrangement allows an increase of the number of aeras and plies with the same structure of the lay-up diagram. Direction other than O“, 45“, - 45“ or 90“ shall be represented: - by a symbol at O“, 45“, - 45“ or go“, the actual direction being indicated in the direction column
36、, or - by a particular identification. Page 8 prEN 4408-1 : 2002 Dimensions in millimetres 1 - oo 10 20 10 10 10 10 32 AREA CASES Key 1 Note relative to each layer (material, etc.) 2 Identification of layers, in increasing or decreasing order 3 Direction of layers, from - 90“ to + 90“ 4 Basic thickn
37、ess of fabric or web 5 Thickness of areas (optional) 6 Identification of laminate aeras 7 Symbols for fabric, web, adhesives, ., oriented to O“, 45“, - 45“ or 90“ in the lay-up diagram, according to the direction of fabric, web, . . . NOTE : Unscaled lay-up diagram Figure 3 - Example of lay-up diagr
38、am Page 9 prEN 4408-1 : 2002 Annex A (informative) Bibliography IS0 128 IS0 129 IS0 406 IS0 11 o1 IS0 3098-2 IS0 5455 IS0 5456-1 IS0 5456-2 IS0 5456-3 IS0 5456-4 IS0 7200 IS0 10579 EN 4408-2 EN 4408-3 EN 4408-4 EN 4408-5 EN 4408-6 Technical drawings - General principles of presentation Technical dra
39、wings - Dimensioning - General principles, definitions, methods of execution and special indications Technical drawings - Tolerancing of linear and angular dimensions Technical drawings - Geometrical tolerancing - Tolerances of form, orientation, location and run-out - Generalities, definitions, sym
40、bols, indications on drawings Technical product documentation - Lettering - Part 2: Latin alphabet, numerals and marks Technical drawings - Scales Technical drawings - Projection methods - Part 1 : Synopsis Technical drawings - Projection methods - Part 2: Orthographic representations Technical draw
41、ings - Projection methods - Part 3: Axonometric representations Technical drawings - Projection methods - Part 4: Central projection Technical drawings - Title blocks Technical drawings - Dimensioning and tolerancing - Non-rigid parts Aerospace series - Technical drawings - Representation of parts m
42、ade of composite materials - Part 2: Laminated parts Aerospace series - Technical drawings - Representation of parts made of composite materials - Part 3: Parts including core materials Aerospace series - Technical drawings - Representation of parts made of composite materials - Part 4: Items obtained by winding Aerospace series - Technical drawings - Representation of parts made of composite materials - Part 5: Seams Aerospace series - Technical drawings - Representation of parts made of composite materials - Part 6: Preforms
