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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 therefr
2、om, is the sole responsibility of the user.” SAE reviews each technical report at least every five years at which time it may be reaffirmed, revised, or cancelled. SAE invites your written comments and suggestions. SHEET 1 OF 3 AS33611 AEROSPACE STANDARD AS33611 ISSUED 1997-08 REAFFIRMED 2007-11 TUB
3、E BEND RADII PREPARED BY SAE COMMITTEE G-3 FED. SUP CLASS 4710 NOTICE This document has been taken directly from U.S. Military Standard, MS33611A, and contains only minor editorial and format changes required to bring it into conformance with the publishing requirements of SAE technical standards. T
4、he original Military Standard was adopted as an SAE standard under the provisions of the SAE Technical Standards Board (TSB) Rules and Regulations (TSB 001) pertaining to accelerated adoption of government specifications and standards. TSB rules provide for (a) the publication of portions of unrevis
5、ed government specifications and standards without consensus voting at the SAE Committee level, (b) the use of the existing government specification or standard format, and (c) the exclusion of any qualified product list (QPL) sections. Copyright 2007 SAE International All rights reserved. No part o
6、f this 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: 724-77
7、6-4970 (outside USA) Fax: 724-776-0790 Email: CustomerServicesae.org SAE WEB ADDRESS: http:/www.sae.org Copyright SAE International Provided by IHS under license with SAELicensee=Defense Supply Ctr/5913977001 Not for Resale, 12/04/2007 20:57:53 MSTNo reproduction or networking permitted without lice
8、nse from IHS -,-,- TUBE BEND RADII AEROSPACE STANDARD AS33611 SHEET 2 OF 3 AS33611 FIGURE 1 - TUBE TABLE I - BEND RADII FOR CRES AND ALUMINUM TUBING NOTES: 1.FLATNESS IN THE AREA OF A TUBE BEND SHALL BE DEFINED BY THE FORMULA 2.THE BENDS WITH WALL THICKNESS PER TABLE II, WHEN USED IN FLUID SYSTEMS W
9、ITH WORKING PRESSURES OF 1500 psi OR GREATER, SHALL NOT EXCEED FLATNESS VALUES OF: a.5% FOR CRES OR ALUMINUM b.3% FOR TITANIUM, COMMERCIALLY PURE AND COLD WORKED, STRESS RELIEVED. 3.TUBE FLATNESS FOR FLUID SYSTEMS WITH WORKING PRESSURES LESS THAN 1000 psi SHALL NOT EXCEED 10% FOR CRES AND ALUMINUM A
10、ND 5% FOR TITANIUM. 4.FLATNESS LIMITATIONS APPLY TO BEND RADII LISTED ON THIS STANDARD. APPLICABILITY TO OTHER BEND RADII SHOULD BE VERIFIED BY TESTING. FLATNESS % MAX. ODMIN OD NOMINAL OD - -x100= Copyright SAE International Provided by IHS under license with SAELicensee=Defense Supply Ctr/59139770
11、01 Not for Resale, 12/04/2007 20:57:53 MSTNo reproduction or networking permitted without license from IHS -,-,- TUBE BEND RADII AEROSPACE STANDARD AS33611 SHEET 3 OF 3 AS33611 NOTES (CONTINUED): 5.USE OF SMALL BENDS (LESS THAN 3D) IN HYDRAULIC, PNEUMATIC AND AIRCRAFT FUEL SYSTEMS REQUIRE THE APPROV
12、AL OF THE PROCURING SERVICE. FOR OTHER FLUID SYSTEMS (LESS THAN 1500 psi) THE SPECIAL BEND RADII COLUMN MAY BE USED. 6.THIS IS A DESIGN STANDARD. NOT TO BE USED AS A PART NUMBER. TABLE II - HIGH STRENGTH 3000 psi TUBING WALLS AND BEND RADII NOTE: TUBING WALL THICKNESS LESS THAN .020 INCH REQUIRE THE
13、 APPROVAL OF THE PROCURING SERVICE. FIGURE 2 - INSPECTION AREA TABLE III - PERMISSIBLE WRINKLES AND SCRATCHES IN BENDS Copyright SAE International Provided by IHS under license with SAELicensee=Defense Supply Ctr/5913977001 Not for Resale, 12/04/2007 20:57:53 MSTNo reproduction or networking permitted without license from IHS -,-,-