1、LmA eThe Engineering SocietyFor Advancing MobilityLand Sea Air and Space,INTERNATIONALAEROSPACE SE AS7112/4400 Commonwealth Drfve. Warrendale, PA 15096-0001STANDARDIssued 1997-l 2Submitted for recognition as an American National StandardNATIONAL AEROSPACE AND DEFENSE CONTRACTORSACCREDITATION PROGRAM
2、REQUIREMENTS FOR HOSE/TUBE ASSEMBLY1. SCOPE:This Aerospace Standard (AS) is to be used as a supplement to SAE AS71 12. In addition tothe requirements contained in AS71 12, the requirements contained herein shall apply tosuppliers seeking NADCAP Fluid System Components Accreditation for Hose Assembly
3、.Hose/tube assemblies may be qualified as being comprised of bulk qualified hose/tube andfittings. The purpose of this standard is to define requirements for audit qualification of thehose/tube assembly to an “assembly” procurement/performance specification. It addressesthe fabrication of two or mor
4、e components coupled by means of screwing, bolting, welding,brazing, swaging or crimping together to form an assembly to meet performance criteria -qualification.2.2.1REFERENCES:SAE Publications:Available from SAE, 400 Commonwealth Drive, Warrendale, PA 15096-0001.AS71 12 National Aerospace and Defe
5、nse Contractors Accreditation Program (NADCAP) -Fluid System Components Manufacturing Requirements2.2 PRI Publications:Available from Performance Review Institute, 161 Thornhill Road, Warrendale, PA 15086-7527.AC71 12 National Aerospace and Defense Contractors Accreditation Program (NADCAP) -Fluid S
6、ystem Components Manufacturing Requirements-NADCAP Fluid System Components Manufacturing Auditor HandbookSAETechnfcal Standards Board Rules provide that: “This report is published by SAE to advance the state of technical and engineering sciences. Theuse of this report is enk-eiy voluntary. and fts a
7、ppficabirf and suitabffii for any panicuhr use. including any patent infringement arising therefrom. is thesole responsibility of the user.SAE reviews each technical report at least every fffe years at which time ft may be reaffirmed, revfsed. or ments and suggestions.SAE invites ,your writtenwCopyr
8、ight 1997 Society of Automotive Engineers, inc.All rights reserved.Prfnted in U.S.A.QUESTIONS REGARDING THIS DOCUMENT: (412) 772-8510FAX (412).776-0243TO PLACE A DOCUMENT ORDER: (412) 776-4970 FAX (412) 776-o790Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reprod
9、uction or networking permitted without license from IHS-,-SAE AS71 12143.3.13.23.33.43.53.63.6.13.74.4.14.24.3GENERAL:There shall be a properly identified and referenced procedure for assembly.Equipment shall be defined.Equipment shall be on a suitable maintenance schedule.Instrumentation shall be d
10、efined.Instrumentation shall be on a verifiable calibration schedule.Assembly procedures shall be available for all set-up and assembly fabrication.Assembly procedures shall be keyed to and dependent on specified model(s) of tooling, sizesand styles.There shall be provisions for intermediate steps d
11、eemed critical by manufacturer orprocurement specification in assembly/fabrication inspected as work in process.HOSE ASSEMBLIES:There shall be properly identified and referenced procedures/work instructions for installingfittings onto hoses.There shall be documents (e.g., assembly drawing) specifyin
12、g the:a. Type and size of hose1) Type and size of braid, etc.b. Final length of assemblyc. Type of fitting for each endd. Sleeve requirementsFitting components shall be specified on the router/shop traveler.-2-Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reprodu
13、ction or networking permitted without license from IHS-,-SAE AS71 1214Fitting components shall be inspected and tested prior to being put into stock and released toproduction.There shall be documented procedures for joining flexible member to fittings (weld/braze,mechanical, swaging/crimping) that i
14、ncludes:a. Sequence of operations (routers)b. Toolingc. Lubricantsd. Cleaning (include compliance to EPA mandates - ODS)e. Inspection criteria4.5.1 Documentation specifying crimp or swage diameters for each fitting shall be available to theoperator.4.5.2 Crimp or swage diameter shall be verified for
15、 each set-up and checked.4.6 A ball test shall be performed for each assembly where required.4.7 The angle of rotation shall be checked for fittings with two elbow fittings.4.8 The final assembly length shall be checked.5. ASSEMBLY TESTING:5.1 Assemblies shall be proof-tested in accordance with the
16、applicable military specification,customer drawing, Aerospace Standard, purchase order, or any other document.5.1.15.1.2There shall be a properly identified and referenced procedure for pressure testing.The procedure shall specify equipment having the proper range to perform conformance, proof,and b
17、urst test along with autofruttage.5.1.35.1.4Equipment shall be on a suitable maintenance schedule.Instrumentation shall be defined.-3-Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-SAE AS7112/4 121451
18、.5 Instrumentation shall be on a verifiable calibration schedule.51.6 The procedure shall establish requirements for the creation and retention of pressure testingrecords.5.2 Assemblies shall be tested after proof test in accordance with the applicable militaryspecification, customer drawing, Aerosp
19、ace Standard, purchase order, or any other document.5.3 Are there documented provisions and equipment to test assemblies with liquids other thanwater (e.g., skydrol, oil, etc.), if required.5.3.1 Alternate fluid media specified shall comply with customer requirements.5.4 Following the proof-testing
20、or the air after proof-test, documented procedures or workinstructions shall require:a. The segregation of assemblies that fail so as to prevent accidental shipmentb. The identification of hose assemblies that have passed5.5 Assemblies shall be checked to assure that nuts are turning freely.6. CLEAN
21、ING:6.1 Assemblies shall be cleaned in accordance with applicable cleaning standards.6.2 If cleaned in-house, the ends shall be sealed to keep dirt out and to protect the threads orconnections.6.3 If special cleaning was done, the ends shall be properly sealed with a warning that the sealshall not b
22、e broken until final installation by the end user.6.3.1 If special packaging is required, the procedure shall be documented.7. MARKING:7.1 Assemblies shall be marked in accordance with applicable documents.7.2 The hose/tube lot shall be traceable from data in the identification marking.-4-Copyright
23、SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-Y7.37.3.1SAE AS7112l4Special Marking:There shall be documented provisions to assure that special marking required by the customeris flowed down.7.3.2 This informat
24、ion to be flowed down shall be documented (i.e., drawing not, shop traveler/router,etc.).8.8.1FINAL INSPECTION:Assemblies shall be inspected for broken wires, improperly installed fittings, and proper I.D.band markings.8.29.9.19.210.10.110.2Assemblies shall be spot checked for correct length.SHIPPIN
25、G:Items shall be packaged to prevent damage and acceptance by a common carrier for shipping.Special shipping instructions shall be made available to the shipping department if needed.PREFORMING (PTFE Smooth Bore):Preformed assemblies shall be checked on check fixture.Preformed assemblies shall be pr
26、operly restrained so they will keep the preformedconfiguration.11. COMPLIANCE:11.1 Job Audits: Compliance to the requirements contained herein and customer requirements shallbe verified by auditing in-process or completed jobs. The number of jobs to be audited shall bedetermined by the NADCAP Fluid
27、System Components Task Group. A minimum of onecomplete job shall be reviewed for compliance to customer requirements and the requirementscontained herein. If multiple job audits are performed, selections of jobs should be based onrepresentative sampling of type of work, products, and customers.11.2
28、Product Verification: A minimum of one complete Product Verification shall be performed. Thepart shall be inspected for conformance to specifications and customer requirements.inspection shall take place at the point in the process where the characteristic or feature iscreated.-5-Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-
