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1、BRITISH STANDARD AEROSPACE SERIES BS EN 4408-4:2005 Technical drawings Representation of parts made of composite materials Part 4: Items obtained by winding The European Standard EN 4408-4:2005 has the status of a British Standard ICS 01.100.99; 49.020 ? Licensed Copy: sheffieldun sheffieldun, na, S
2、at Nov 04 07:33:03 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 4408-4:2005 This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 October 2005 BSI 31 October 2005 ISBN 0 580 46481 4 National foreword This British Standard is the official Eng
3、lish language version of EN 4408-4:2005. The UK participation in its preparation was entrusted by Technical Committee ACE/65, Non-metallic materials for aerospace purposes (excluding textiles), to Subcommittee ACE/65/-/64, Structural reinforced plastics, which has the responsibility to: A list of or
4、ganizations represented on this subcommittee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Catalogue under the section entitled “International Standards C
5、orrespondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard does
6、not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep UK interests informed; monitor related international and European development
7、s and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the EN title 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.
8、No. DateComments Licensed Copy: sheffieldun sheffieldun, na, Sat Nov 04 07:33:03 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 4408-004 May 2005 ICS 01.100.99; 49.020 English version Aerospace series - Technical drawings - Representation of parts mad
9、e of composite materials - Part 4: Items obtained by winding Srie arospatiale - Dessins techniques - Reprsentation des articles en matriaux composites - Partie 4 : Articles obtenus par enroulement Luft- und Raumfahrt - Technische Zeichnungen - Darstellung von Teilen aus Verbundwerkstoffen - Teil 4:
10、Im Wickelverfahren hergestellte Teile This European Standard was approved by CEN on 15 July 2004. 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
11、-date lists and bibliographical references concerning such national standards may be obtained on application to the Central Secretariat 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
12、the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Icela
13、nd, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: rue de Stassart,
14、 36 B-1050 Brussels 2005 CENAll rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 4408-004:2005: E Licensed Copy: sheffieldun sheffieldun, na, Sat Nov 04 07:33:03 GMT+00:00 2006, Uncontrolled Copy, (c) BSI 2 Contents Page Foreword 3 Introduc
15、tion4 1 Scope.5 2 Normative references .5 3 Terms and definitions.5 4 Presentation on drawings 6 4.1 General rules.6 4.2 Specific rules.6 4.2.1 Symbol.6 4.2.2 Winding of filaments.6 4.2.3 Winding of plies 8 Bibliography.9 EN 4408-4:2005 Licensed Copy: sheffieldun sheffieldun, na, Sat Nov 04 07:33:03
16、 GMT+00:00 2006, Uncontrolled Copy, (c) BSI 3 Foreword This document (EN 4408-004:2005) has been prepared 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 r
17、eceived the approval of the National Associations and the Official Services of the member countries of AECMA, 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 Nove
18、mber 2005, and conflicting national standards shall be withdrawn at the latest by November 2005. 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 pate
19、nt 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, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy,
20、 Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. EN 4408-4:2005 Licensed Copy: sheffieldun sheffieldun, na, Sat Nov 04 07:33:03 GMT+00:00 2006, Uncontrolled Copy, (c) BSI 4 Introduction The proposed r
21、epresentations only provide the definition of parts made up of cylinders, i.e. surfaces created by a straight (generator) line which moves while remaining parallel to a given direction, along a (directing) curve. These representations are insufficient to describe parts especially including truncated
22、 cones, cores or elliptic bottoms. This standard is intended: for items obtained by winding helicoidal filaments of a basic yarn; for items obtained by winding plies (or layers). EN 4408-4:2005 Licensed Copy: sheffieldun sheffieldun, na, Sat Nov 04 07:33:03 GMT+00:00 2006, Uncontrolled Copy, (c) BSI
23、 5 1 Scope This standard specifies the rules for the representation of items in composite materials obtained by winding as well as the information to be indicated in technical drawings. It is applicable to aerospace structures using items in composite materials obtained by winding. It shall be used
24、together with EN 4408-001. 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.
25、 EN 4408-001, Aerospace series Technical drawings Representation of parts made of composite materials Part 1: General rules. EN 4408-002, Aerospace series Technical drawings Representation of parts made of composite materials Part 2: Laminated parts. 3 Terms and definitions For the purposes of this
26、document, the terms and definitions given in EN 4408-001 and the following apply. 3.1 angle of the spiral angle formed by the basic yarn, or the laid ply, and the 0 direction of the direction key (this 0 direction corresponds to the direction of the cylinders axis in the case of rotational parts) 3.
27、2 lap set of fibres and/or filaments and/or yarns and/or fibrillated laminates arranged in an orderly manner or not, sufficiently cohesive to ensure easy handling and a slight thickness with respect to other dimensions. 3.3 layer in the winding of filaments, the layer is specifically defined as bein
28、g made up of the smallest whole number of winding motives such that the surface described is entirely covered 3.4 spiral pitch axial advance of the yarn or ply lay device corresponding to a whole turn of the part 3.5 tape preimpreg fibrous composite supplied in different widths the fibres of which a
29、re arranged in an unidirectional manner lengthways 3.6 to-and-fro by winding filaments, elementary figure made up of two spirals of opposite pitches EN 4408-4:2005 Licensed Copy: sheffieldun sheffieldun, na, Sat Nov 04 07:33:03 GMT+00:00 2006, Uncontrolled Copy, (c) BSI 6 A to-and fro corresponds to
30、 two consecutive “passes“ and in the opposite direction by the yarn laying device. 3.7 lay width distance between two adjacent yarns or laps or plies, measured perpendicularly at their axes 3.8 winding symbol means that the ply in question is obtained by winding 3.9 winding motive figure described b
31、y the smallest whole number of to-and-fro movements such that a symmetry appears with respect to the axis in the winding of the filaments 4 Presentation on drawings 4.1 General rules The general rules for the representation of items in composite materials obtained by winding shall be in conformity w
32、ith EN 4408-001. The representation rules described in EN 4408-002 remain applicable for items obtained by winding (stratification table, direction key, symbolisation of direction in the stratification table, etc.). 4.2 Specific rules 4.2.1 Symbol Winding is symbolised in the stratification table by
33、 the symbol . This symbol appears in the stratification table and shall be accompanied by a note defining the basic material used for winding (yarn, rough roving, tape, fabric). 4.2.2 Winding of filaments See Figure 1 and Figure 2. In the case of items obtained by the helicodal filamentary winding o
34、f a basic thread, the drawing does not represent the section of the thread. EN 4408-4:2005 Licensed Copy: sheffieldun sheffieldun, na, Sat Nov 04 07:33:03 GMT+00:00 2006, Uncontrolled Copy, (c) BSI 7 Key 1 Layer end side 136 and 141 (see Figure 2) Figure 1 Dimensions in millimetres 1-3 141 90 0,375
35、2 ROUGH ROVINGS 1-3 136 90 0,375 2 ROUGH ROVINGS 1 131 90 0,375 2 ROUGH ROVINGS 2 126 45 0,31 2 121 0 0,31 1 116 V V 26 1,3 26 1,3 V1 V1 13 0,6 3 ROUGH ROVINGS 3 WINDING END 1/3 NUMBER OF TO-and-FROs = 29 2 111 0 0,31 2 106 0 0,31 1 101 90 0,375 2 ROUGH ROVINGS A1 A2 A3 A4 FABRIC LAP YARN AREA THICK
36、NESS NOTE ELEMENT IDENTIFICATION DIRECTION THICKNESS 4,04 2,80 V 0,975 Key = winding V = variable in the area 1 = carbon fibre 2 = bi-directional fabric V1 = see file N XXXXXXX 3 = for layers 136 and 141, make a dead stop once at the stop mark. Figure 2 WARP 0 EN 4408-4:2005 Licensed Copy: sheffield
37、un sheffieldun, na, Sat Nov 04 07:33:03 GMT+00:00 2006, Uncontrolled Copy, (c) BSI 8 4.2.3 Winding of plies See Figure 3 and Figure 4. In the case of items obtained by winding plies: the drawing differentiates the laid elementary widths; the representation rules are similar to those for draped items
38、, provided that certain plies which appear to be distinct on a cross section according to a generator, come in fact from single wound plies. Two cases are to be differentiated: Circumferential or spiral winding; the number of winding turns shall figure: either in a note, or be entirely represented o
39、n the drawing, Helical winding: the stratification table indicates as usual the angle of the plys reference direction in relation to the 0 direction of the direction key of the part, and winding is defined on the drawing with respect to its spiral angle, or its spiral pitch, or its lay pitch. It may
40、 be useful to mark on the drawing the point at which the spiral starts. NOTE Plies are generally cut out parallel to their reference direction and the spiral angle corresponds to the angle figuring in the stratification table. Dimensions in millimetres Figure 3 Dimensions in millimetres 1 111 79 0,3
41、3 2 106 79 0,33 1 101 79 0,33 A1 FABRIC LAP AREA THICKNESS WINDING NOTE LAYER IDENTIFICATION DIRECTION THICKNESS 1 Figure 4 EN 4408-4:2005 Licensed Copy: sheffieldun sheffieldun, na, Sat Nov 04 07:33:03 GMT+00:00 2006, Uncontrolled Copy, (c) BSI 9 Bibliography 1 EN 4408-003, Aerospace series Technic
42、al drawings Representation of parts made of composite materials Part 3: Parts including core materials. 2 EN 4408-005, Aerospace series Technical drawings Representation of parts made of composite materials Part 5: Seams. 3 EN 4408-006, Aerospace series Technical drawings Representation of parts mad
43、e of composite materials Part 6: Preforms. EN 4408-4:2005 Licensed Copy: sheffieldun sheffieldun, na, Sat Nov 04 07:33:03 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 4408-4:2005 BSI 389 Chiswick High Road London W4 4AL BSI British Standards Institution BSI is the independent national body respo
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