1、ASSOCIATION EUROPEENNE DES CONSTRUCTEURS DE MATERIEL AEROSPATIAL Interchangeabilit des Elments des Cellules dAronefs Interchangeability and Mastering Policy in Airframe Manufacturing Austauschbarkeit und Lehrenphilosophie in der Flugzeugzellenfertigung RECOMMANDATION NO: CTI /74/3282 , _ . I AECMA C
2、TI/79/3282 7Li LOL23LL 0000205 7 Copyright Association Europeene des Constructeurs de Materiel Aerospatial Provided by IHS under license with AECMANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-AECMA CTI/V/3282 74 LOL231L 000020b 7 ASSOCIATION EUROPEENNE DES CONST
3、RUCTEURS DE MATERIEL AEROSPATIAL GROUPE DE TRAVAIL CHARGE DE LA POLITIQUE DEINTERCHANGEABILITE ET DOUTILLAGES DANS LA FABRICATION DES CELLULES PREAMBULE (Par le President du Groupe) Ce groupe a t constitu en Mars 1972 et il a t admis par chaque reprsentant quune recommandation Europenne concernant l
4、a politique dinterchangeabilit et doutiilages pour cellules aronautiques (demande par le C.T.I. de 1 AECMA) est souhaitable dans le cadre des contrats passs entre differents pays et socits dans un avenir prochain. Les informations rassembles par les reprsentants auprs des socits de leurs pays respec
5、tifs ont - - - - interfaces between components and parts to be supplied between theco-operating partners; degree of interchangeability to be reached in components, subassemblies or parts: mastering programme and tooling philosophy: responsibilities to be carried by each partner. 2. Obiective It is t
6、he objective of the Comite Technique et Industriel that the ad hoc working group prepares an AECMA recommendation before the end of 1972 which can serve as a basic document from which discussions in each programme can start for further refinements as required by the particular programme. 3. Recommen
7、dations required To fulfil the above mentioned objective the ad hoc working groups task will be to: 1. 2. 3. 4. 5. 6. 7. make an inventory of existing mastering definitions and system philosophies including a list of definitions. indicate a priority degree to the definitions and system philosophies
8、as mentioned under I above, subject to a) military projects b) commercial projects indicate the degree of cost of each definition or system on a percentage basis taking one definition as index 100. define given a certain sectional breakdown of the aircraft, the division of responsibilities for the e
9、ngineering, manufacturing and supply of master tooling, checking gauges etc. with particular reference to the interfaces between co-operating partners. make recommendations with regard to the required documentation. make recommendations with regard to the control of interchangeability during a progr
10、amme. make recommendations with regard to standardisation of definitions, criteria, methods and evidence, -. . -I - Copyright Association Europeene des Constructeurs de Materiel Aerospatial Provided by IHS under license with AECMANot for ResaleNo reproduction or networking permitted without license
11、from IHS-,-,-AECMA CTI/74/3282 74 W 101Z311 000021L 2 A.E.C.M.A. METHOD OF CONTROL OF INTERCHANGEABILITY AND MASTERING POLICY IN AIRFRAME MANUFACTURING Copyright Association Europeene des Constructeurs de Materiel Aerospatial Provided by IHS under license with AECMANot for ResaleNo reproduction or n
12、etworking permitted without license from IHS-,-,-A.E.C.M. A. METHOD OF CONTROL OF INTERCHANGEABILITY AND MASTERING POLICY IN AIRFRAME MANUFACTURING PARAGRAPH NUMBER 1 2 2.0 2,l 2.1.1. 2.1.2. 2.2. 2.2.1. 2.2.2. 2.2.3. 2.2.4. 3 3.1 3.1.1. 3.1.2. 3.1.3. 3.2. 3.2.0. 3.2.1. 3.2.2. 3.2.3. 4 4.1. 4.1.1. 4.
13、1.1A 4.1.2. 4.1.3. 4.1.4. 4.1.5. TABLE OF CONTENTS TITLE Introduction Definitions Classes of Interchangeability Interchangeability required by contract or in use Manufacturing Interchangeability Media to guarantee interchangeability Control Master Gauge Master Tooling Gauge Checking Gauge Achieving
14、Interchangeability without the use of interchangeability media - matching of production tools Technical considerations Design of interchangeability media Control Master Gauge Master Tooling Gauge Checking Gauge Facilities that can be used in lieu of or complementary to specific interchangeability me
15、dia Numerical Master Geometry System (N.M.G.) Optical Settings Master Modelling Elements for the choice of interchangeability policy Main solutions Solution 1 Solution 1A Solution 2 Solution 3 Solution 4 Solution 5 1. . Copyright Association Europeene des Constructeurs de Materiel Aerospatial Provid
16、ed by IHS under license with AECMANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-PARAGRAPH NUMBER TITLE 4.1.6. 4.2. 4.3. 5 5.1. 5.2. 6 6.1. 6.2. 6.3. 6.4. 6.5. 6.6. 6.7. 7 7.1. 7.2. 8 8.1. 8.2. 8.3. 8.4. 9 9.1. 9.2. 9.3. I Solution 6 Indicated degree of cost of ea
17、ch solution taking solution 1 as 100 Selection of solution Sharing of responsibility where manufacture is in co-operation Major components manufactured within each company Major components manufactured by different companies Documentation List of interchangeable and replaceable items Exploded view o
18、f aircraft showing major interchangeable items Interchangeability Data Sheets Interchangeability Media Application Drawings Scheduling of Major interchangeability media Interchangeability form Documentation organisation chart Inspection Quality Manufacture verification Certification Optical settings
19、 Principle Method of positioning a mounting pad Further possibilities of optical method Laser equipment for optical setting Master modelling technique Foreword Manufacture of the master model Manufacture of jigs and tools from the master model Copyright Association Europeene des Constructeurs de Mat
20、eriel Aerospatial Provided by IHS under license with AECMANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Appendix Number 1 - 1A- 1B 2 3 3A-3B 4-4A 5 6 8 9 AECMA CTI/74/32Z 74 U LOL23LL OOOOZL4 4 TABLEOFCONTENTS Title Typical example of division of responsibility a
21、s paragraph 5.2. Typical example of scheduling of major interchangeability media as paragraph 6.5. Interchangeability - Replaceability List - typical extract Interchangeability - Replaceability List Typical list for a passenger aircraft Typical Application Drawing for interchangeability media Typica
22、l Interchangeability Data Sheet Typical exploded view of aircraft Typical interchangeability form Typical Documentation Organisation Chart Master Modelling . 3. -. . Copyright Association Europeene des Constructeurs de Materiel Aerospatial Provided by IHS under license with AECMANot for ResaleNo rep
23、roduction or networking permitted without license from IHS-,-,-AECMA CTI/74/3282 74 LOL23LL 0000215 T * TABLE OF CONTENTS Illustration Number 1 1A 2 3 4 5 5A 6 7 8 9 10 11 + 12 13 14 15 16 a 17 18 Title Solution 1 Solution 1A Solution 2 Solution 3 Solution 4 Solution 5 Solution 5 Soh tion 6 Example
24、to solution 1 - Major Interface Example to solution 1 - Access Door Example to solution 1A - Major Interface Example to solution 1A - Access Door Example to solution 2 - Major Interface Example to solution 2 - Access Door Example to solution 3 - Major Interface Example to solution 3 - Access Door Ex
25、ample to solution 4 - Major Interface Example to solution 4 - Access Door Example to solution 5 - Access Door Example to solution 6 - Access Door Copyright Association Europeene des Constructeurs de Materiel Aerospatial Provided by IHS under license with AECMANot for ResaleNo reproduction or network
26、ing permitted without license from IHS-,-,-AECMA CTI/74/3262 74 LOL23Ll 00002Lb L W A.E.C.M .A. METHOD OF CONTROL OF INTERCHANGEABILITY AND MASTERING POLICY IN AIRFRAME MANUFACTURING 1) This document is designed to cover the basic requirements to which each participating manufacturing unit must conf
27、orm to achieve and maintain interchangeability on any joint aircraft manufacturing project. INTRODUCTION It is restricted to geometrical interchangeablity and its purpose is to: Define this interchangeability in practice. Describe the means to achieve this and inspect it. State the factors for decid
28、ing on the various possible methods. Give the procedures in general use for the associate companies. To obtain a uniform appellation of terms a list of relevant definitions is included. The basic functions of those departments responsible for the engineering control and verification of interchangeab
29、ility within a manufacturing unit are also described. Essential documentation, interchangeability media requirements and quality assurance procedures are specified together with the necessary inputs which the authority would require to successfully co-ordinate the overail interchangeability content
30、of any given project. The satisfaction of interchangeability requirements is a planned and integrated function of design engineering, production engineering, tool design and product assurance activities. 2) DEFINITIONS 2.0 . For the purpose of the subject treated in this chapter it is assumed that,
31、after installation of the interchangeable or replaceable item into the aircraft and after possible adjustment for which means have been incorporated into the item or its adjoining structure, no unacceptable differences are discernable in geometric and functional performance, maintainability, reliabi
32、lity, etc. 2.1. Classes of Interchangeability 2.1.1. interchangeability required by contract or in use The aircraft design specifications define the contractual requirements for interchangeability. It applies to items that are removable and likely to be replaced, on the aircraft by the user during o
33、peration, whether military or civil. There are three kinds of contractual interchangeability. 5. Copyright Association Europeene des Constructeurs de Materiel Aerospatial Provided by IHS under license with AECMANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-2.1.2.
34、 hhnufacturing interchangeability This applies to items which are not intended to be changed during the life of the aircraft and are therefore not listed in the contract specifications. Its purpose is simply to help the manufacturers assembly operations. It is defined in the delivery specification b
35、etween the manufacturers. There are two kinds of manufacturing interchangeability. Manufacturing Interchangeability (Class MI) An interface between two aircraft components comes in class MI when the joining of those two components requires only the application of attaching means and possibly of adju
36、stment. No further operations such as cutting, filing, reaming, etc. shall be required. Manufacturing Repiaceability (Class MR) Aninterface between two aircraft components comes in class MR when the joining of those two components requires adaptation of one or of both aircraft components to each oth
37、er. An interface definition has to be laibdown specifying the.way in which means for adaptation have to be provided. (Trim allowances, predrilled or undersize holes etc.) The condition of supply must be defined. Copyright Association Europeene des Constructeurs de Materiel Aerospatial Provided by IH
38、S under license with AECMANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-AECMA CTI/7Y/3282 74 LOL231L 00002L8 5 2.2. Media to guarantee interchangeability To produce an interchangeable item a family of tools for the item and the structure to which the item assembl
39、es is necessary. This family of tools must be compatible to a degree which will guarantee that when components are produced from this family a satisfactory assembly within the specified tolerances will be obtained. Dependent on the assembly tolerances and configuration the necessary degree of compat
40、ibility of the family of tools can be achieved in any one of three ways:. a) . Pyrely by dimensions b) By physical application of the production tools to each other c) By the use of tooling facilities to correlate the family of tools and where necessary check the finished item and/or structure to wh
41、ich it assembles. Such tooling facilities are called interchangeability media as distinct from production tools. They are thus solely facilities to correlate the family of tools during their manufacture, to ensure that the standard is maintained on the tools during a production run, and/or to check
42、the finished component. There are three types of interchangeability media as defined below, 2.2.1. Control Master Gauge A control master gauge simulating the interchangeability features of a specific component is a tooling facility representing that component and co-ordinated with the control master
43、 gauge!of its complementary component. When there is a control master gauge it defines the interchangeability standard in question and is mandatory. The control master gauge is used for the co-ordination and inspection of the master tooling gauge representing the complementary component and of the c
44、hecking gauge of the specific component when the checking gauge is in the same plant. For a given interchangeability item only one control master gauge can exist. A control master gauge normally remains static in the company responsible for its manufacture. 2.2.2. Master Tooling Gauge A master tooli
45、ng gauge simulating the interchangeability features of a specific component is a tooling facility representing that component, and co-ordinated with either the control master gauge (if existing) or the master tooling gauge of its complementary component (if existing). The master tooling gauge is use
46、d for the adjustment, co-ordination and inspection of production tooling and of checking gauges. In exceptional cases the master tooling gauge for a specific component may be used as a checking gauge for the complementary component Multiple master tooling gauges may exist for any one component where
47、 there are multiple sources of production; Copyright Association Europeene des Constructeurs de Materiel Aerospatial Provided by IHS under license with AECMANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-AECMA CTI/74/328Z 74 W LOL231L 0000219 7 2.2.3. Checking Gau
48、ge A checking gauge for the interchangeability features of a specific component is an inspection facility representing the complementary component, and co-ordinated with either the control master gauge or the master tooling gauge of the specific component, if these exist. The checking gauge represen
49、ts the complementary component such that the ailocation of tolerances results in the acceptance or rejection of the component being checked. Multiple checking gauges may exist for any one component where there are multiple sources of production. 2.2.4. Achieving Interchangeability without the use of interchangeability media - matching of production tools Any
