1、 _ SAE Technical Standards Board Rules provide that: “This report is published by SAE to advance the state of technical and engineering sciences. The use of this report is entirely voluntary, and its applicability and suitability for any particular use, including any patent infringement arising ther
2、efrom, is the sole responsibility of the user.” SAE reviews each technical report at least every five years at which time it may be revised, reaffirmed, stabilized, or cancelled. SAE invites your written comments and suggestions. Copyright 2017 SAE International All rights reserved. No part of this
3、publication may be reproduced, stored in a retrieval system or transmitted, in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without the prior written permission of SAE. TO PLACE A DOCUMENT ORDER: Tel: 877-606-7323 (inside USA and Canada) Tel: +1 724-776-49
4、70 (outside USA) Fax: 724-776-0790 Email: CustomerServicesae.org SAE WEB ADDRESS: http:/www.sae.org SAE values your input. To provide feedback on this Technical Report, please visit http:/standards.sae.org/AS5620B AEROSPACE STANDARD AS5620 REV. B Issued 2004-03 Reaffirmed 2013-01 Revised 2017-06 Sup
5、erseding AS5620A Titanium Hydraulic Tubing, Ti-3Al-2.5V Cold Worked and Stress Relieved, Up to 35000 kPa (5080 psi), Requirements for Qualification Testing and Control RATIONALE Amend typo for MPa conversion value for Type III 70 ksi tubing. Bring standard up to latest SAE format and editorial requi
6、rements. 1. SCOPE This SAE Aerospace Standard (AS) shall be used in conjunction with AMS4946 to provide requirements for qualification testing and for Qualified Products Listing (QPL) and Qualified Manufacturer Listing (QML) for Ti-3Al-2.5V cold worked and stress relieved hydraulic system tubing. Th
7、e basic tubing shall comply with the requirements of AMS4946. 1.1 Classification The AMS4946 Type designations for this tubing are repeated here for reference. 1.1.1 Types Type I - Tubing with 105 ksi (724 MPa) minimum yield strength Type II - Tubing with 95 ksi (655 MPa) minimum yield strength Type
8、 III - Tubing with 70 ksi (483 MPa) minimum yield strength 2. APPLICABLE DOCUMENTS The following publications form a part of this document to the extent specified herein. The latest issue of SAE publications shall apply. The applicable issue of other publications shall be the issue in effect on the
9、date of the purchase order. In the event of conflict between the text of this document and references cited herein, the text of this document takes precedence. Nothing in this document, however, supersedes applicable laws and regulations unless a specific exemption has been obtained. SAE INTERNATION
10、AL AS5620B Page 2 of 11 2.1 SAE Publications Available from SAE International, 400 Commonwealth Drive, Warrendale, PA 15096-0001, Tel: 877-606-7323 (inside USA and Canada) or +1 724-776-4970 (outside USA), www.sae.org. AMS4946 Titanium Alloy Tubing, Seamless, Hydraulic, 3Al - 2.5V, Texture Controlle
11、d, Cold Worked, Stress Relieved AS603 Impulse Testing of Hydraulic Hose, Tubing, and Fitting Assemblies AS4265 Impulse Testing of Hydraulic Tubing and Fittings, S-N Curve AS4444 Fittings, 24 Degree Cone, Flareless, Fluid Connection, 5000 psi AS18280 Fittings, 24 Degree Cone, Flareless, Fluid Connect
12、ion, 3000 psi AS33611 Tube Bend Radii AS85421 Fittings, Tube, Fluid Systems, Separable, Beam Seal, 3000/4000 psi, General Specification for AS85720 Fittings, Tube, Fluid Systems, Separable, High Pressure, Dynamic Beam Seal, 5000/8000 psi, General Specification for 2.2 PRI Publications Available from
13、 Performance Review Institute, 161 Thorn Hill Road, Warrendale, PA 15086-7527, Tel: 724-772-1616, www.pri-network.org. AC7112 Nadcap Audit Criteria for Fluid Systems Component Manufacturers AC7112/6 Nadcap Titanium 3AI-2.5V Alloy, Seamless Hydraulic Tubing Manufacturing Requirements Audit Checklist.
14、 PD1100 Nadcap Program Requirements PD2001 Manufacturer Request for Product Approval or on three S-shaped specimens each having two 160 bends as shown in Figure 2 and to the dimensions shown in Table 2. Tests are to be conducted at room temperature. Specimens shall be fabricated from different tubes
15、 in the lot (see 3.3.1). 4.3.1.3 S-N Testing Qualification S-N testing shall be in accordance with AS4265. Specimens shall be as shown in Figure 3 and Table 2, and shall be tested at room temperature in quantites as specified in AS4265. Specimens shall be fabricated from different tubes in the lot (
16、see 3.3.2). SAE INTERNATIONAL AS5620B Page 8 of 11 4.3.2 Periodic Testing Periodic impulse testing to AS603 shall be done using two S-shaped specimen or four U-shaped specimens. Periodic tests to AS4265 may be conducted using three specimens each at two stress levels selected by the user or PRI. Fig
17、ure 1 - AS603 impulse test specimen, U-shape SAE INTERNATIONAL AS5620B Page 9 of 11 Figure 2 - AS603 impulse test specimen, S-shape Figure 3 - AS4265 impulse test straight specimen Pressurized Specimen Length Recommended: 90 Durometer Urethane O-rings SAE INTERNATIONAL AS5620B Page 10 of 11 Table 2
18、- Impulse test specimen lengths Tube OD Bend Angle Bend Radius L1*) +0.25 -0.00 L2 +0.50 -0.00 U-Shape Specimen Length Fig 1 S-Shape Specimen Length Fig 2 Straight Specimen Length Fig 3 0.250 160 0.750 1.25 2.50 5.00 10.00 9.00 0.375 160 1.125 1.25 2.50 6.00 12.00 9.00 0.500 160 1.500 1.25 3.50 7.00
19、 14.50 9.00 0.625 160 1.875 1.25 5.50 8.00 19.00 9.00 0.750 160 2.250 1.25 5.50 9.00 22.00 9.00 0.875 160 2.625 1.25 5.50 10.00 24.00 10.00 1.000 160 3.000 1.25 5.50 11.00 26.00 11.00 1.250 160 3.750 1.25 5.50 13.00 30.00 13.50 NOTE: Length L1*) is the straight segment of tubing between the tube end
20、 and the bend tangent point. This Length L1 applies when welded sleeves are used. The length of the sleeve is to be added when swaged sleeves are used. 4.4 Reports 4.4.1 Qualification Test Reports Test reports shall be in accordance with MIL-HDBK-831 and shall include results from all tests required
21、 in AMS4946 and the hydraulic impulse tests specified in this standard. The report shall contain a listing of all manufacturing processes and materials used in manufacturing of the qualification test specimens. Test samples shall be stored for a period of 3 years and made available if requested by t
22、he user or PRI. 4.4.2 Acceptance Test Reports Shall conform to AMS4946, except that Standard Number AS5620 shall be used instead of AMS4946. 4.5 Re-Sampling and Re-Testing Shall conform to AMS4946. 4.5.1 Re-sampling for Contractile Strain Ratio Shall conform to AMS4946. 5. PREPARATION FOR DELIVERY 5
23、.1 Identification Identification shall be in accordance with AMS4946, except that the standard number AS5620 shall be used instead of AMS4946. Marking shall be in accordance with AMS2809, except that system pressure psi shall be added to marking, as applicable to the tubing wall thickness and size l
24、isted in Table 1. 5.2 Packaging Shall conform with AMS4946, except that Standard Number AS5620 shall be used instead of AMS4946. 6. REJECTIONS Rejections shall conform with AMS4946. SAE INTERNATIONAL AS5620B Page 11 of 11 7. NOTES 7.1 Ordering Data Procurement documents shall specify: a. Title, numb
25、er, and date or revision letter of this specification b. Type c. Tube size and wall thickness d. Length e. Microstructure, when required: Shall conform with AMS4946 7.2 Revision Indicator A change bar (l) located in the left margin is for the convenience of the user in locating areas where technical
26、 revisions, not editorial changes, have been made to the previous issue of this document. An (R) symbol to the left of the document title indicates a complete revision of the document, including technical revisions. Change bars and (R) are not used in original publications, nor in documents that contain editorial changes only. PREPARED BY SAE SUBCOMMITTEE G-3E, AEROSPACE TUBING INSTALLATION OF COMMITTEE G-3, AEROSPACE COUPLINGS, FITTINGS, HOSE, AND TUBING ASSEMBLIES
