1、BRITISH STANDARD AEROSPACE SERIES BS EN 4408-1:2005 Technical drawings Representation of parts made of composite materials Part 1: General rules The European Standard EN 4408-1:2005 has the status of a British Standard ICS 01.100.99; 49.020 BS EN 4408-1:2005 This British Standard was published under
2、 the authority of the Standards Policy and Strategy Committee on 31 October 2005 BSI 31 October 2005 ISBN 0 580 45622 6 National foreword This British Standard is the official English language version of EN 4408-1:2005. The UK participation in its preparation was entrusted by Technical Committee ACE
3、/65, Non-metallic materials for aerospace purposes (excluding textiles), to Subcommittee ACE/65/-/64, Structural reinforced plastics, which has the responsibility to: aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation
4、, or proposals for change, and keep UK interests informed; monitor related international and European developments and promulgate them in the UK. A list of organizations represented on this subcommittee can be obtained on request to its secretary. Cross-references The British Standards which impleme
5、nt international or European publications referred to in this document may be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online. This publication does
6、not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, the EN ti
7、tle page, pages 2 to 9 and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. Date CommentsEUROPEANSTANDARD NORMEEUROPENNE EUROPISCHENORM EN4408001 May2005 ICS01.100.99;49.020 Englishversion Aero
8、spaceseriesTechnicaldrawingsRepresentationofparts madeofcompositematerialsPart1:Generalrules SriearospatialeDessinstechniquesReprsentation desarticlesenmatriauxcompositesPartie1:Rgles gnrales LuftundRaumfahrtTechnischeZeichnungen DarstellungvonTeilenausVerbundwerkstoffenTeil1: AllgemeineRegeln ThisE
9、uropeanStandardwasapprovedbyCENon15July2004. CENmembersareboundtocomplywiththeCEN/CENELECInternalRegulationswhichstipulatetheconditionsforgivingthisEurope an Standardthestatusofanationalstandardwithoutanyalteration.Uptodatelistsandbibliographicalreferencesconcernings uchnational standardsmaybeobtain
10、edonapplicationtotheCentralSecretariatortoanyCENmember. ThisEuropeanStandardexistsinthreeofficialversions(English,French,German).Aversioninanyotherlanguagemadebytra nslation undertheresponsibilityofaCENmemberintoitsownlanguageandnotifiedtotheCentralSecretariathasthesamestatusast heofficial versions.
11、 CENmembersarethenationalstandardsbodiesofAustria,Belgium,Cyprus,CzechRepublic,Denmark,Estonia,Finland,France, Germany,Greece,Hungary,Iceland,Ireland,Italy,Latvia,Lithuania,Luxembourg,Malta,Netherlands,Norway,Poland,Portugal, Slovakia, Slovenia,Spain,Sweden,SwitzerlandandUnitedKingdom. EUROPEANCOMMI
12、TTEEFORSTANDARDIZATION COMITEUROPENDENORMALISATION EUROPISCHESKOMITEEFRNORMUNG ManagementCentre:ruedeStassart,36B1050Brussels 2005CEN Allrightsofexploitationinanyformandbyanymeansreserved worldwideforCENnationalMembers. Ref.No.EN4408001:2005:EEN 4408-1:2005 2 Contents Page 1 Scope .4 2 Normative ref
13、erences .4 3 Terms and definitions.5 4 Drawing presentation .5 4.1 General rules .5 4.2 Specific rules.6 5 Title block inscriptions .6 6 Title block indications 6 6.1 General tolerances6 6.2 Marking 6 6.3 Serialisation .6 6.4 Manufacturing conditions 6 7 Dimensioning principle 7 8 Image .7 9 Notes o
14、n drawings 7 10 Thickness of parts 7 10.1 General case (structural function) .7 10.2 Special case (other functions) .7 11 Direction key .8 12 Definition of laminate areas .8 13 Material identification .8 14 Lay-up diagram .8 EN 4408-1:2005 3 Foreword This document (EN 4408-001:2005) has been prepare
15、d by the European Association of Aerospace Manufacturers - Standardization (AECMA-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 A
16、ECMA, 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 November 2005, and conflicting national standards shall be withdrawn at the latest by November 2005. Attenti
17、on 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 th
18、e 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,
19、 Sweden, Switzerland and the United Kingdom. 4 1 Scope This standard specifies the general rules for the representation of parts made of composite materials, in technical drawings. It applies to aerospace structures using composites materials, and their applications when this standard is specified.
20、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. ISO 128 (all parts), Techn
21、ical drawings General principles of presentation. ISO 129-1, Technical drawings Indication of dimensions and tolerances Part 1: General principles ISO 406, Technical drawings Tolerancing of linear and angular dimensions. ISO 1101, Geometrical Product Specifications (GPS) Geometrical tolerancing Tole
22、rances of form, orientation, location and run-out. ISO 3098-2, Technical product documentation Lettering Part 2: Latin alphabet, numerals and marks. ISO 5455, Technical drawings Scales. ISO 5456-1, Technical drawings Projection methods Part 1: Synopsis. ISO 5456-2, Technical drawings Projection meth
23、ods Part 2: Orthographic representations. ISO 5456-3, Technical drawings Projection methods Part 3: Axonometric representations. ISO 5456-4, Technical drawings Projection methods Part 4: Central projection. ISO 7200, Technical product documentation Data fields in title blocks and document headers. I
24、SO 10579, Technical drawings Dimensioning and tolerancing Non-rigid parts. EN 4408-002, Aerospace series Technical drawings Representation of parts made of composite materials Part 2: Laminated parts. EN 4408-003, Aerospace series Technical drawings Representation of parts made of composite material
25、s Part 3: Parts including core materials. EN 4408-004, Aerospace series Technical drawings Representation of parts made of composite materials Part 4: Items obtained by winding. EN 4408-005, Aerospace series Technical drawings Representation of parts made of composite materials Part 5: Seams. EN 440
26、8-006, Aerospace series Technical drawings Representation of parts made of composite materials Part 6: Preforms. EN 4408-1:20055 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 direction key identification on the drawing, linked to the part,
27、according to which the directions of the lay-up diagram are defined 3.2 laminate two or more layers cured together 3.3 laminating process or operation binding two or more layers of material 3.4 laminate area it allows the variations in layer arrangements (thickness) of a laminated part to be disting
28、uished by a particular identification A laminate area defined by 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 f
29、unction It defines the layers with respect to each other, gives their directions and completes the image and its direction key. 3.7 layer element or set of elements at a given level One layer may be made of several plies. 3.8 ply elementary part of a laminate with only one fibre or fabric direction
30、NOTE Ply also designates the same element before 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 fo
31、r the identification of each element making up the part. 4.1 General rules Drawings of parts made of composite materials are represented in compliance with the standardisation rules defined by the following standards: EN 4408-1:20056 ISO 128 ISO 129-1 ISO 3098-2 ISO 5455 ISO 5456 These rules are com
32、pleted by this standard. 4.2 Specific rules Specific rules for the drawing representation of parts made of composite materials are contained in the following standards: EN 4408-002 EN 4408-003 EN 4408-004 EN 4408-005 EN 4408-006 5 Title block inscriptions Rules for the representation and use of the
33、title block are given in ISO 7200. 6 Title block indications 6.1 General tolerances General dimensional tolerances shall comply with the requirements of ISO 406 and ISO 1101 unless otherwise indicated in the drawing. 6.2 Marking Recommended markings are mainly made with ink or paint. 6.3 Serialisati
34、on Serialisation shall comply with 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). EN 4408-1:20057 7 Dimensioning principle Traditionally, the definitio
35、n of each part given in a drawing applies to the unassembled part, ready for mounting and under the following environmental conditions: ambient temperature: (20 0,5) C; relative humidity: (50 10) %. The rules for deformable parts defined in ISO 10579 shall be observed. 8 Image Representation rules s
36、hall comply with ISO 128 and ISO 129-1. 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, succinc
37、t, and sufficient 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 obtaining method, etc. The basic thickness of the layers has
38、 to be summarised in 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 thic
39、kness shall be specified in a note on the design document (see Figure 1). Dimensions in millimetres aThe thickness in this area shall be equal to (x y) mm. Figure 1 Specification of thickness on design documents EN 4408-1:20058 11 Direction key Traditionally, the reference direction for fibre, the f
40、ibre 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 0 direction of the orientation key is chosen by the designer who shall guarantee the co
41、rrect use of the drawing, the 3 rddirection is perpendicular to the X (0) and Y (90) axes; the + direction corresponds to the traditional direction of a direct axis system. Figure 2 Direction key 12 Definition of laminate areas A laminate area is defined by an arrangement of layers (fabric, web, rov
42、ing, 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 area (see Figure 3)
43、: identification of the area; 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, fibre, core material. 0 90 45
44、45 90 EN 4408-1:20059 This arrangement allows an increase of the number of areas and plies with the same structure of the lay-up diagram. Direction other than 0, 45, 45 or 90 shall be represented: by a symbol at 0, 45, 45 or 90, the actual direction being indicated in the direction column, or by a p
45、articular identification. Dimensions in millimetres 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 thickness of fabric or web 5 Thickness of areas (optional) 6 Identification of laminate
46、areas 7 Symbols for fabric, web, adhesives, , oriented to 0, 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 diagram EN 4408-1:2005BS EN 4408-1:2005 BSI 389 Chiswick High Road London W4 4AL BSI British Standards I
47、nstitution BSI is the independent national body responsible for preparing British Standards. It presents the UK view on standards in Europe and at the international level. It is incorporated by Royal Charter. Revisions British Standards are updated by amendment or revision. Users of British Standard
48、s should make sure that they possess the latest amendments or editions. It is the constant aim of BSI to improve the quality of our products and services. We would be grateful if anyone finding an inaccuracy or ambiguity while using this British Standard would inform the Secretary of the technical committee responsible, the identity of which can
