ISO 10042中文及英文

《ISO 10042中文及英文》由会员分享，可在线阅读，更多相关《ISO 10042中文及英文（25页珍藏版）》请在维思文库上搜索。

1、 INTERNATIONAL STANDARD rso 10042 Second edition 2005 1 1 1 5 Welding Arc welded joints in aluminium and its alloys Quality levels for imperfections Soudage Assemblages en aluminium et alliages d aluminium soudris d l arc Niveaux de qualit6 par rapport aux d6fauts a ilsc Reference number ISO 10042 2

2、005 E o tso 2005 ISO 10042 2005 E PDF disclaimer This PDF file may contain embedded typefaces In accordance with Adobe s licensing policy this file may be printed or viewed but shall not be edited unless the typefaces which are embedded are licensed to and installed on the computer performing the ed

3、iting In downloading this file parties accept therein the responsibility of not infringing Adobe s licensing policy The ISO Central Secrelariat accepts no liability in this area Adobe is a trademark of Adobe Systems Incorporated Details of the software products used to create this PDF file can be fo

4、und in the Generil Info relative to the file the PDF creation parameters were optimized for printing Every care has been taken to ensure that the file is suitable for use by ISO member bodies In the unlikely event that a problem relating to it is found please inform the Central Secretariat at the ad

5、dress given below o rso 2005 AII rights reserved Unless otherwise specified no part of this publication may be reproduced or utilized in any form or by any means electronic or mechanical including photocopying and microfilm without permission in writing from either ISO at the address below or ISO s

6、member body in the country of the requester ISO copyright office Case postale 56 CH 1211 Geneva 20 1s1 41 2274901 11 Fax 41 22749 09 47 E mail copyright iso org Web www iso org Published in Switzerland O ISO 2005 All rights reserved ISO 10042 2005 E Contents 2 Normative references 1 I 3 Terms and de

7、finitions 2 5 Assessment of imperfections 3 Annex A informative Examples of the determination of the percent porosity 16 Annex B informative Additional information and guidelines for users of this International O ISO 2005 All rights reserved ISO 10042 2005 E Foreword ISO the lnternational Organizati

8、on for Standardization is a worldwide federation of national standards bodies lSO member bodies The work of preparing International Standards is normally carried out through ISO technical committees Each member body interested in a subject for which a technical committee has been established has the

9、 right to be represented on that committee lnternational organizations governmental and non governmental in liaison with lSO also take part in the work ISO collaborates closely with the International Electrotechnical Commission lEC on all matters of electrotechnical standardization lnternational Sta

10、ndards are drafted in accordance with the rules given in the ISO lEC Directives Part2 The main task of technical committees is to prepare International Standards Draft International Standards adopted by the technical committees are circulated to the member bodies for voting Publication as an lnterna

11、tional Standard requires approval by at least 75 o o of the member bodies casting a vote Attention is drawn to the possibility that some of the elements of this doiument may be the subject of patent rights ISO shall not be held responsible for identifying any or all such patent rights ISO 10042 was

12、prepared by Technical Committee ISO TC 44 Welding and allied processes Subcommittee SC 10 IJnification of requirements in the field of metal welding This second edition cancels and replaces the first edition lSO 10042 1992 which has been technically revised IV O ISO 2005 All rights reserved ISO 1004

13、2 2005 E lntroduction This International Standard should be used as a reference ih drafting application codes and or other application standards lt contains a simplified selection of arc welding imperfections based on the designations given in ISO 6520 1 Some imperfections described in ISO 6520 1 ha

14、ve been used directly and some have been grouped together The basic numerical referencing system from ISO 6520 1 has been used The purpose of this International Standard is to define the dimensions of typical imperfections which might be expected in normal fabrication lt may be used within a quality

15、 system for the production of welded joints lt provides three sets of dimensional values frorrr which a selection can be made for a particular application The quality level necessary in each case should be defined by the application standard or the responsible designer in conjunction with the manufa

16、cturer user and or other parties concerned The quality level will have to be prescribed before the start of production preferably at the enquiry or order stage For special purposes additional details may to be prescribed The quality levels given in this International Standard provide basic reference

17、 data and are not specifically related to any particular application They refer to the types of welded joint in fabrication and not to the complete product or component itself lt is possible therefore that different quality levels are applied to individual welded joints in the same product or compon

18、ent It would normally be expected that for a particular welded joint the dimensional limits for imperfections could all be covered by specifying one quality level In some cases it niay be necessary to specify different quality levels for different imperfections in the same welded joint The choice of

19、 quality level for any application should take account of design considerations subsequent processing e g surfacing mode of stressing e 9 static dynamic service conditions e 9 temperature environment and consequences of failure Economic factors are also important and should include not only the cost

20、 of welding but also of inspection test and repair Although this International Standard includes types of imperfection relevant to the arc welding processes given in Clause l only those which are applicable to the process and application in question need to be considered lmperfections are quoted in

21、terms of their actual dimensions and their detection and evaluation may require the use of one or more methods of non destructive testing The detection and sizing of imperfections is dependent on the inspection methods and the extent of testing specified in the application standard or contract This

22、lnternational Standard does not address the methods used for the detection of imperfections However ISO 17635 contains a correlation between the quality level and acceptance levelfor different NDT methods This International Standard is directly appticable to visual examinaiion of welds and does not

23、include details of recommended methods of detection or sizing by other non destructive means lt should be considered that there are difficulties in using these limits to establish appropriate criteria applicable to non destructive testing methods such as ultrasonic radiographic and penetrant testing

24、 and they may need to be supplemented by requirements for inspection examination and testing The values given for imperfections are for welds produced using normal weldirig practice Requirements for smaller more stringent values as stated in quality level B may include additional manufacturing proce

25、sses e g grinding TIG dressing Requests for official interpretation of any aspect of this International Standard should be directed to the secietariat of ISO TC 44tSC 10 via your national standards body A complete listing of these bodies can be found at www iso orq ISO 2005 All rights reserved INTER

26、NATIONAL STANDARD ISO 10042 2005 E Welding Arc welded joints in aluminium and its alloys Quality levels for imperfections 1 Scope This International Standard specifies quality levels for imperfections in arc welded joints in aluminium and its alloys lt applies to material thicknesses above 0 5 mm lt

27、 covers full penetration butt welds and all fillet welds The principles of this International Standard may also be applied to partial penetration butt welds Quality levels for beam welded joints are presented in ISO 13919 2 Three quality levels are given in order to permit application to a wide rang

28、e of welded constructions They are designated by symbols g C anO D Quality level B corresponds to the highest requirement on the finished wetd Tne quality levels refer to production quality and not to the fitness for purpose see 3 2 of the product manufactured This International Standard applies to

29、all types of weld e g butt welds fillet welds and branch connections the following welding processes and their sub processes as defined in ISO 4063 131 metal inert gas welding MlG welding gas metal arc welding usA 141 tungsten inert gas welding TlG welding gas tungsten arc welding USA 15 plasma arc

30、welding manual mechanized and automatic welding allwelding positions I Metallurgical aspects e g grain size hardness are not covered by this International Standard 2 Normative references The following referenced documents are indispensable for the application of this document For dated references on

31、ly the edition cited applies For undated references the latest edition of the referenced document including any amendments applies ISO 2553 Wetded brazed and soldered joints Symbolic representation on drawings ISO 4063 Wetding and attied processes Nomenclature of processes and reference numbers ISO

32、6520 1 1ggg Wetding and allied processes Ctassification of geometric impertecfions in metallic materials Part 1 Fusion welding O ISO 2005 All rights reserved ISO 10042 2005 E 3 Terms and definitions For the purposes of this document the following terms and definitions apply 3 1 quality level O escri

33、ption of the quality of a weld on the basis of type size and amount of selected imperfections 3 2 fitness for purpose ability of a product process or service to serve a defined purpose under specific conditions 3 3 short imperfections in cases when the weld is 100 mm long or longer imperfections are

34、 considered to be short imperfections if in the 100 mm which contains the greatest number of imperfections their total length is less than 25 mm in cases when the weld is less than 100 mm long imperfections are considered to be short imperfections if their total length is less than 25 of the length

35、of the weld 3 4 systematic imperfection imperfection that is repeatedly distributed in the weld over the weld length to be examined the individual imperfection being within the specified limits 3 5 cross sectional area area to be considered after fracture or sectioning stzeof each 3 6 projected area

36、 area where imperfections distributed along the two dimensionally NOTE In contrast to the cross sectional area the when exposed radiographically see Figure 1 volume of the weld under consideration are imaged occurrence of imperfections is dependent on the weld thickness l r i t r t lr V L 4 q 6 Key

37、1 direction of X rays 2 4 pores per volume unit 3 6 fold thickness 4 3 fold thickness 5 2jold thickness 6 1 fold thickness Figure 1 Radiographic films of specimens with identical occurrence of pores per volume unit l r Y l r V 3 O ISO 2005 All rights reserved ISO 10042 2005 E 4 Symbols The following

38、 symbols are used in Table 1 A area surrounding a gas pore d nominal throat thickness of a fillet weld see also ISO 2553 b width of weld reinforcement d diameter of a gas pore dA diameter of area surrounding a gas pore d4 diameter of circle surrounding total gas pore area ft height or width of an im

39、perfection length of imperfection in longitudinal direction of weld lp length of projected or cross sectional area s nominal butt weld thickness see also ISO 2553 r wall or plate thickness nominal size p width of weld or width or height of cross sectional area z leg length of a fillet weld see also

40、ISO 2553 5 Assessment of imperfections Limits on imperfections are given in Table 1 lf for the detection of imperfections micro examination is used only those imperfections which can be detected with a maximum of ten fold magnification shall be considered Excluded from this are microcracks see Table

41、 1 2 2 Systematic imperfections are only permitted in quality level D provided other requirements of Table 1 are fulfilled A welded joint should usually be assessed for each individual type of imperfection separately see Table 1 1 1 to 3 2 Different types of imperfection occurring at any cross secti

42、on of the joint need special consideration see multiple imperfections in Table 1 4 1 The limits on multiple imperfections see Table 1 are only applicable in cases where the requirements for a single imperfection are not exceeded Any two adjacent imperfections separated by a distance smaller than the

43、 major dimension of the smaller imperfection shall be considered as a single imperfection O ISO 2005 All rights reserved ISO 10042 2005 E Iq a o g o o J q E o o J E L t c E 0 o z o E 6 z rr vl o o 9 o J c E o o Eo f O f E q z o E c z s 0 E 0 z s rf bb 4 a a v v t s N s E ro N ro to o Y L g o tr c o

44、6 tl a 9 x c o o o j o E o x o o OC A o lL O O c c O eE 6 E CL 9 E t t 7 O E o I J x 0 o o E E E z o Y o o ED 4 o y o s N N o z N o 9 J o L o o E o th g E I r I ll G O ISO 2005 All rights reserved ISO 10042 2005 E Io no E c r o o 9o o o o CL c o o Eo tr 0 E o o z 0 PE o z F f E 9 vl il r p F N o h p

45、 9 i 1 5 E iF f E E o l E o tr s i c c Aj crl 0 E BE ei E t r E C Y E i g 8 e o F I g g b E a et reB tE E E e E F i i EE E 9E i H H E E E P J O i d p H e i t s q E E E i o F g 3 E gt 3g E i E EgPlg re f H A t r 9 5 t r 6 a D E 0 z o E c z cr S i F 9 S i v v t E E OC vlx i t r Ltr X v E F o E dN v i

46、r P c F c rO j N f 9co ro n rO o rO NA IA J L c tr v o 9 6 c 6 c o E E f E x O c E Fg o Y o o 5 o o U t a L o o IU c o s 6r 5 0 vE Y O I 9 F P o E x c o Et ctg z o 5 O O E 4 o x o s N f N N N s c o z O froq q r o o G F O ISO 2005 All rights reserved ISO 10042 2005 E I l a o c t o o 9o o o E o E o o

47、Eo oo EE oo zz OO v l v 6 E i tr ro E E v v 6 r rE 5 f tr O d x Y E F 6l x v o E f c i NN oo v v d e J o o c O6 lr n I c n ro A o JL o o tr o o E o o o N o a LX 0 b o D o o o a O c E E s EL rE o t r o a o a d 5 c E o o t g D E 6 B o o x I JJ E3 e o E c l o E a rr N rO N o 2 q o F O ISO 2005 All righ

48、ts reserved ISO 10042 2005 E Io o C t o o 9o a t0 E o o o f i tr s ca i o x o V E o Eo E o E t a tr c o v x s tr E E v o E 0 z tr q sf E al J rr v X U E s v c E c z F ro o 0 J o x vlE ON v l t E c E v o c e N A l v r 6 E E E N A NA o J o E 0 u o E c o o o a 0 o c E o o ru c e d J z E O t r 5 8 o 6 p

49、 EL 9 P o o t r o 9 a o x 3 9 UO o F A o c i a a c F o o a 0 x I JJ c s gi ctg z o E o o ED o y a rO f N s 0 ct z N v o o It O ISO 2005 All rights reserved ISO 10042 2005 E Io o g E c r L o o 9o J o o o E tr o th o a c F 0 t0 U E o r o OO x E E F o o t v F q E c E E a E O iO oo x to E F c j v i g c

50、E u i cl o l tr o v i rF c Nts dN v l x rF c E s c D C v c c x 5 E tr c NA N 6 I o E o E o c c a E o E a c o o c o c 3 o tr a C 0 0 c O O t h y o o o t c c F c a O c c 9 98 6 E CL D O o o t r o 9 c E F A o J Y o r 2 r b a g EE gE i 9 x 6 c 5 g E F u r 6 o o I c E a c E E3 e o T o o E a o o ro ro N l