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1、AS/NZS 1665:2004 Australian/New Zealand Standard Welding of aluminium structures AS/NZS 1665 Accessed by UNIVERSITY OF SOUTH AUSTRALIA on 06 Jan 2009 AS/NZS 1665:2004 This Joint Australian/New Zealand Standard was prepared by Joint Technical Committee WD-003, Welding of Steel Structures. It was appr
2、oved on behalf of the Council of Standards Australia on 16 December 2003 and on behalf of the Council of Standards New Zealand on 5 March 2004. It was published on 22 March 2004. The following are represented on Committee WD-003: Australian Chamber of Commerce and Industry Australian Industry Group
3、AUSTROADS Bureau of Steel Manufacturers of Australia Electricity Supply Association of Australia Institution of Engineers Australia New Zealand Heavy Engineering Research Association New Zealand Non-destructive Testing Association New Zealand Welding School Steel Reinforcement Institute of Australia
4、 University of Sydney Welding Technology Institute of Australia Keeping Standards up-to-date Standards are living documents which reflect progress in science, technology and systems. To maintain their currency, all Standards are periodically reviewed, and new editions are published. Between editions
5、, amendments may be issued. Standards may also be withdrawn. It is important that readers assure themselves they are using a current Standard, which should include any amendments which may have been published since the Standard was purchased. Detailed information about joint Australian/New Zealand S
6、tandards can be found by visiting the Standards Web Shop at .au or Standards New Zealand web site at www.standards.co.nz and looking up the relevant Standard in the on-line catalogue. Alternatively, both organizations publish an annual printed Catalogue with full details of all current Standards. Fo
7、r more frequent listings or notification of revisions, amendments and withdrawals, Standards Australia and Standards New Zealand offer a number of update options. For information about these services, users should contact their respective national Standards organization. We also welcome suggestions
8、for improvement in our Standards, and especially encourage readers to notify us immediately of any apparent inaccuracies or ambiguities. Please address your comments to the Chief Executive of either Standards Australia International or Standards New Zealand at the address shown on the back cover. Th
9、is Standard was issued in draft form for comment as DR 02451. Accessed by UNIVERSITY OF SOUTH AUSTRALIA on 06 Jan 2009 AS/NZS 1665:2004 Australian/New Zealand Standard Welding of aluminium structures Originated as AS 16651976. Previous edition AS 16651992. Jointly revised and designated AS/NZS 1665:
10、2004. COPYRIGHT Standards Australia/Standards New Zealand All rights are reserved. No part of this work may be reproduced or copied in any form or by any means, electronic or mechanical, including photocopying, without the written permission of the publisher. Jointly published by Standards Australia
11、 International Ltd, GPO Box 5420, Sydney, NSW 2001 and Standards New Zealand, Private Bag 2439, Wellington 6020 ISBN 0 7337 5736 7 Accessed by UNIVERSITY OF SOUTH AUSTRALIA on 06 Jan 2009 AS/NZS 1665:2004 2 PREFACE This Standard was prepared by the Joint Standards Australia/Standards New Zealand Com
12、mittee WD-003, Welding of Structures, to supersede AS 16651992. The objective of this Standard is to standardize the welding of aluminium structures and incorporate the latest techniques used in industry. This is a major revision of the previous edition, including references to the latest materials
13、being used. The terms normative and informative have been used in this Standard to define the application of the appendix to which they apply. A normative appendix is an integral part of a Standard, whereas an informative appendix is only for information and guidance Statements expressed in mandator
14、y terms in notes to tables and figures are deemed to be requirements of this Standard. Accessed by UNIVERSITY OF SOUTH AUSTRALIA on 06 Jan 2009 3 AS/NZS 1665:2004 CONTENTS Page SECTION 1 SCOPE AND GENERAL 1.1 SCOPE 5 1.2 EXCLUSIONS 5 1.3 INNOVATION5 1.4 REFERENCED DOCUMENTS 5 1.5 DEFINITIONS 5 1.6 W
15、ELD CATEGORIES7 1.7 BASIS .8 1.8 SAFETY8 SECTION 2 MATERIALS OF CONSTRUCTION 2.1 PARENT METAL. 10 2.2 FILLER METALS. 10 2.3 SHIELDING GASES. 10 SECTION 3 DETAILS OF WELDED CONNECTIONS 3.1 GENERAL 15 3.2 EDGE PREPARATION 15 3.3 BUTT WELDS 17 3.4 FILLET WELDS. 18 3.5 PLUG AND SLOT WELDS 20 SECTION 4 Q
16、UALIFICATION OF PROCEDURES AND PERSONNEL 4.1 WELDING PROCEDURES 24 4.2 QUALIFICATION OF WELDING PROCEDURE BY TESTING 25 4.3 WELDED PRODUCTION TEST PLATES. 29 4.4 CHANGES IN QUALIFIED PROCEDURE . 30 4.5 QUALIFICATION OF WELDING PERSONNEL 31 4.6 RECORD OF QUALIFICATIONS 34 SECTION 5 WORKMANSHIP 5.1 ME
17、THODS OF PREPARATION AND CLEANNESS . 35 5.2 PREHEATING 36 5.3 CONTROL OF DISTORTION AND SHRINKAGE STRESSES 36 5.4 PROTECTION AGAINST WEATHER CONDITIONS 36 5.5 ASSEMBLY 36 SECTION 6 QUALITY OF WELDS 6.1 QUALITY LEVELS OF WELDED FABRICATIONS . 38 6.2 REPAIR WELDING . 38 SECTION 7 INSPECTION 7.1 GENERA
18、L 42 7.2 QUALIFICATIONS OF INSPECTORS 42 7.3 VISUAL INSPECTION OF WORK 42 7.4 NON-DESTRUCTIVE EXAMINATION OTHER THAN VISUAL EXAMINATION. 43 Accessed by UNIVERSITY OF SOUTH AUSTRALIA on 06 Jan 2009 AS/NZS 1665:2004 4 Page APPENDICES A LIST OF REFERENCED DOCUMENTS . 44 B GUIDANCE ON THE SELECTION AND
19、THE EXTENT OF NON- DESTRUCTIVE EXAMINATION . 46 C MATTERS FOR RESOLUTION. 48 D TYPICAL FORMS FOR WELDING PROCEDURES 49 Accessed by UNIVERSITY OF SOUTH AUSTRALIA on 06 Jan 2009 5 AS/NZS 1665:2004 COPYRIGHT STANDARDS AUSTRALIA/STANDARDS NEW ZEALAND Australian/New Zealand Standard Welding of aluminium
20、structures S E C T I O N 1 S C O P E A N D G E N E R A L 1.1 SCOPE This Standard specifies requirements for the welding of aluminium and its weldable alloys in structures, components and equipment complying with AS/NZS 1664.1 or AS/NZS 1664.2, by the following processes: (a) Gas tungsten-arc welding
21、 (GTAW). (b) Gas metal-arc welding (GMAW). (c) Pulsed-arc welding (GTAW or GMAW). (d) Plasma-arc welding (PAW). The Standard can also be used for all welded constructions other than those excluded in Section 1.2. NOTES: 1 Throughout this Standard, aluminium is taken to refer to aluminium and its wel
22、dable alloys. 2 Welded components may be made up of combinations of sheets, plates, extrusions or sections, including hollow sections, built-up sections, castings and forgings. 1.2 EXCLUSIONS This Standard does not apply to resistance welding, brazing, soldering, or the welding of pressure vessels a
23、nd pressure piping (which should comply with AS/NZS 1200). NOTE: The welding of pressure vessels and pressure piping are covered in AS/NZS 1200. 1.3 INNOVATION It is not intended to prevent the use of novel materials, welding processes, consumables, methods of construction or testing that do not com
24、ply with a specific requirement of this Standard or are not mentioned in it, but which give equivalent results to those specified. The Standard can be applied to other welding processes such as friction welding, including friction stir, laser welding and electron beam welding, provided all requireme
25、nts of the Standard are met, as well as specific constraints of needs, demands and operation of the individual welding processes. 1.4 REFERENCED DOCUMENTS The documents referred to in this Standard are listed in Appendix A 1.5 DEFINITIONS For the purpose of this Standard, the symbols and definitions
26、 given in AS 1101.3 and AS 2812 and the definitions below apply. Accessed by UNIVERSITY OF SOUTH AUSTRALIA on 06 Jan 2009 AS/NZS 1665:2004 6 COPYRIGHT 1.5.1 Design throat thickness of a complete penetration butt weld The thickness of the thinner joined part. NOTE: No increase is permitted for weld r
27、einforcement. 1.5.2 Design throat thickness of an incomplete penetration butt weld The depth of a machined preparation. 1.5.3 Effective area of a weld The product of the effective length and the design throat thickness. 1.5.4 Effective length of a weld The length of the continuous full-size weld, as
28、 measured along the centre-line of the throat. 1.5.5 Size of a complete or incomplete penetration butt weld The minimum depth to which the weld extends from its face into a joint, exclusive of reinforcement. 1.5.6 Size of a complete penetration butt weld for T-joints and corner joints The thickness
29、of the part of a T-joint butt weld or a corner joint butt weld, of which the end or edge butts against the face of the other part. 1.5.7 Size of a fillet weld The lengths of the sides lying along the legs of a triangle inscribed within the cross-section of the weld (see Figure 3.4). NOTES: 1 Where t
30、hese lengths are equal, the size is given by a single dimension. 2 Where there is a root gap, the length of one side is decreased by the length of the root gap, measured in the direction of that side (see Figure 3.4(c). 1.5.8 Fabricator The person or organization responsible for the welding of a str
31、ucture during its fabrication or erection. 1.5.9 Inspecting authority The authority having statutory powers to control the design and erection of buildings and structures. NOTE: Where a structure is not subject to statutory jurisdiction, the principal is deemed to be the inspecting authority. 1.5.10
32、 Inspector A person employed by or acceptable to the inspecting authority or principal for the purposes of inspecting welding in accordance with this Standard. 1.5.11 Principal The purchaser, owner or nominated representative (e.g., designer or engineer) of a structure being fabricated or erected. 1
33、.5.12 Shall Indicates that a statement is mandatory. 1.5.13 Should Indicates a recommendation. 1.5.14 May Indicates the existence of an option. Accessed by UNIVERSITY OF SOUTH AUSTRALIA on 06 Jan 2009 7 AS/NZS 1665:2004 COPYRIGHT 1.6 WELD CATEGORIES 1.6.1 General Butt welds shall be designated Weld
34、Category A, B or C. All fillet welds shall be designated Category B. Each weld category is characterized by permissible levels of imperfection (see Section 6) so as to assist the designer in the selection of the weld quality most appropriate to the service conditions to which the weld will be subjec
35、ted. Since individual welds in a structure will normally be subjected to different service requirements, the specification of weld category should normally be considered in respect of each weld. Where a member is subject to a combination of stress conditions, the highest appropriate weld category sh
36、ould be applied. The principal, or nominated representative, who may be the designer, shall indicate on the drawing the weld category selected for all welds to be fabricated in accordance with Clause 1.7. This should be by means of an additional letter added to the standard symbols for welding speci
37、fied in AS 1101.3, which would normally be used. The principal is also required to nominate the extent of non-destructive examination required for production welding (see Note 1). Matters for resolution between the principal and the fabricator shall be as given in Appendix C. NOTES: 1 Guidance on th
38、e selection and extent of non-destructive examination is given in Appendix B. 2 The selection of a better (i.e., higher) than necessary weld category for any joint is not considered desirable, partly because it will lead to additional fabrication and inspection costs, and also because there will lik
39、ely be little or no improvement in weld performance. 1.6.2 Weld Category A Weld Category A is intended for the more severe fatigue conditions in structures. It should be specified only for members with continuous full penetration, longitudinal or transverse, butt welds, with the reinforcement dresse
40、d flush with the surface, and the weld quality verified by higher level examination and testing as set out in this Standard. Butt welds in members with continuous penetration longitudinal or transverse, shall be dressed flush by machining, finished in the direction of the applied stress. The members
41、 shall have edges as extruded or carefully machined, or filed in the direction of stress. NOTE: Examples of weld designs meeting these requirements are given in AS/NZS 1664.1 or AS/NZS 1664.2 (Clause 4.8 in each of the 1997 editions). 1.6.3 Weld Category B Weld Category B is intended principally for
42、 those butt welds subject to a tensile stress approaching the maximum permissible under AS/NZS 1664.1 or AS/NZS 1664.2 and the less severe of the fatigue stress conditions. This weld category is also intended for all fillet welds. Weld Category B is applicable where joints carry static tensile stres
43、ses in excess of 80% of the maximum stress permitted by AS/NZS 1664.1 or AS/NZS 1664.2, or the joints are subject to low-to-moderate levels of fatigue loading. Weld Category B is normally specified for structural (i.e., load-bearing) welds in general aluminium fabrication and construction. Members f
44、abricated with such welds would normally be identified as having one or more of the following characteristics: (a) Full or partial penetration transverse butt welds made from both sides. (b) Full-penetration continuous longitudinal automatic butt welds. (c) Continuous longitudinal fillet welds. Acce
45、ssed by UNIVERSITY OF SOUTH AUSTRALIA on 06 Jan 2009 AS/NZS 1665:2004 8 COPYRIGHT (d) Transverse butt welds made from both sides or made from one side with an underbead. (e) Transverse butt welds made on permanent backing strips, which may or may not be attached by full-length fillet welds. (f) Full
46、 or partial penetration transverse load-carrying fillet welds or cruciform welds. (g) Tee joints, with or without full penetration if made from both sides, but with full penetration if made from one side. NOTE: Examples of weld designs meeting these requirements are given in AS/NZS 1664.1 or AS/NZS
47、1664.2 (Clause 4.8 in each of the 1997 editions). 1.6.4 Weld Category C Weld Category C is appropriate for joints subject only to static compressive stresses or joints carrying static tensile stress less than 80% of the maximum permitted by AS/NZS 1664.1 or AS/NZS 1664.2, or discontinuous butt and f
48、illet welds subject to fatigue. Members fabricated with such welds would normally be identified as having one or more of the following characteristics: (a) Discontinuous longitudinal fillet or butt welds. (b) Beams with intermittent web-to-flange welds. NOTE: Examples of weld designs meeting these r
49、equirements are given in AS/NZS 1664.1 or AS/NZS 1664.2. 1.7 BASIS The basis of this Standard is that a weld shall (a) be made in accordance with a qualified welding procedure; (b) be carried out by a welder suitably qualified to carry out such a procedure; (c) be carried out under the supervision of a welding supervisor who is employed by or contracted to the fabricator; and (d) comply with the appropriate requirements of the Standard. NOTE: Where fabrication activities require the approval of the principal or the inspect
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