AWS QC7 SUPP G-1993 Supplement G-AWS Performance Qualification Test.pdf

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1、Supplement GAWS PerformanceQualificationTestAWS QC7-93 Supplement GKeywords AWS Certified Welders, welders, AWS QC7-93 Supplement Gwelder certification, welder AWs Performance Qualification TestqualificationAWS QC7-93Standard forAWS Certified WeldersDeveloped byAWS Qualification and Certification Co

2、mmitteeUnder the Direction ofAWS Education and Certification CouncilApproved byAWS Board of DirectorsAbstractThis Supplement G to AWS standard QC7-93 describes testing administrated by Accrediled Test Facilities to therequirements of AWS QC 4, Standard for Acreditation of Test Facilities for AWS Cer

3、tified Welder Program.American Welding Society550 N.W. LeJeune Road, P.O. Box 351040, Miami, Florida 33135Statement on Use of AWS StandardsAH standards (codes, specifications, recommended practices, methods, classifications, and guides) of the AmericanWelding Society are voluntary consensus standard

4、s that have been developed in accordance with the rules of theAmerican National Standards Institute. When AWS standards are either incorporated in, or made part of, documentsthat are included in federal or state laws and regulations, or the regulations of other governmental bodies, theirprovisions c

5、arry the full legal authority of the statute. In such cases, any changes in those AWS standards must beapproved by the governmental body having statutory jurisdiction before they can become a part of those laws andregulations. In all cases, these standards cany the full legal authority of the contra

6、ct or other document that invokes theAWS standards. Where this contractual relationship exists, changes in or deviations from requirements of an AWSstandard must be by agreement between the contracting parties.International Standard Book Number: 0-87171-411-6American Welding Society, 550 N.W. LeJeun

7、e Road, P.O. Box 351040, Miami, Florida 33135 1993 by American Welding Society. All rights reservedPrinted in the United States of AmericaNote: The primary purpose of AWS is to serve and benefit its members. To this end, AWS provides a forum for theexchange, consideration, and discussion of ideas an

8、d proposals that are relevant to the welding industry and theconsensus of which forms the basis for these standards. By providing such a forum, AWS does not assume any duties towhich a user of lhese standards may be required to adhere. By publishing this standard, the American Welding Societydoes no

9、t insure anyone using the information it contains against any liability arising from that use. Publication of astandard by the American Welding Society does not carry with it any right to make, use, or sell any patented items.Users of the information in this standard should make an independent inves

10、tigation of the validity of that information fortheir particular use and the patent status of any item referred to herein.With regard to technical inquiries made concerning AWS standards, oral opinions on AWS standards may be rendered.However, such opinions represent only the personal opinions of th

11、e particular individuals giving them. Theseindividuals do not speak on behalf of AWS, nor do these oral opinions constitute official or unofficial opinions orinterpretations of AWS. In addition, oral opinions are informal and should not be used as a substitute for an officialinterpretation.This stan

12、dard is subject to revision at any time by the AWS Qualification and Certification Committee. It must bereviewed every five years and if not revised, it must be either reapproved or withdrawn. Comments (recommendations,additions, or deletions) and any pertinent data that may be of use in improving t

13、his standard are requested and should beaddressed to: Director of Qualification and Certification Department, AWS Headquarters. Such comments will receivecareful consideration by the AWS Qualification and Certification Committee and the author of the comments will beinformed of the Committees respon

14、se to the comments. Guests are invited to attend all meetings of the AWSQualification and Certification Committee to express their comments verbally. Procedures for appeal of an adversedecision concerning all such comments are provided in the Rules of Operation of the Technical Activities Committee.

15、A copy of these Rules can be obtained from the American Welding Society, 550 N.W. LeJeune Road, P.O. Box 351040,Miami, Florida 33135.PersonnelAWS Qualification and Certification CommitteeC. E. Pepper, ChairmanJ. F. Harris, 1st Vice ChairmanL. P. Connor, SecretaryE. M. Beck*W. F. BenkeE. R. BohnartH.

16、 ChapmanH.F.Clark IIA. L. CollinP. R. EvansH. W. GoserW. L. Green*J. E. GreerM. L. Houle*W. H. KennedyR. E. LongS. P. MartinR. D. MesserA. L. PetroskiR. R. PicardS. L. RaymondT. Schlafly*S. W. ScottR. M. SimonsW. F. UrbickR. F. WaiteR. K. WiswesserF. G. DeLaurier, Ex-OfficioD. W. Dickinson, Ex Offic

17、ioJ. C. Paprilan, Ex-OfficioOak Ridge Natl LaboratoryCenterior EnergyAmerican Welding SocietyLaw Engineering IncorporatedFord Motor Sterlin PlantMiller Electric Manufacturing CompanyConsultantFluor Daniel, IncorporatedConsulting EngineerB G-2G5.3 Qualification 2G6. Performance Test G-3G6.1 Identific

18、ation 3G6.2 Verification 3G6.3 Safety Equipment 3G6.4 Material and Equipment Check G-3G6.5 Fit-Up G-3G6.6 Assembly Control G-3G6.7 Positioning 3G6.8 Examination and Testing Methods and Acceptance Standards G-3G7. Retests G-3G7.1 Immediate Retest G-3G7.2 Retest After Further Training or Practice G-3G

19、8. Documentation of Welder Performance Qualification G-3G9. Period of Effectiveness G-3G10. Identification/Certification Documents G-4Gil. Maintenance of Certification 4G12. Renewal of Certification G-4G13. Revocation G-4FormsQC-WF3A Maintenance of CertificationviSupplement GAWS Performance Qualific

20、ation TestGl. ScopeThis Supplement to the AWS QC7-93, Standard forAWS Certified Welders, provides a welder certificationmethod not specifically based on a code but which maybe acceptable for various codes. The rules for perform-ance qualification are as defined by the applicable spec-ification refer

21、enced in the WPS or as defined by theemployer in the WPS or accompanying documentation(acceptance criteria).Gl.l Program. The administrative rules for the Amer-ican Welding Society (AWS) Certified Welder Programare provided in AWS QC7-93. Test facilities participateing in the program are required to

22、 meet the provisions ofAWS QC4, Standard for Accreditation of Test Facilitiesfor AWS Certified Welder Program.G1.2 Exclusion. Neither AWS QC7-93, nor this sup-plement prevents or supersedes a manufacturer or con-tractor from continuing to qualify welders in accordancewith other standards or procedur

23、es. Manufacturers orcontractors may impose.supplementary requirements tothis standard as deemed necessary.G1.3 Safety Precautions. This document is not intend-ed to address safety and health matters regarding thetraining of certified welders. This document only coversthe rules of certification.G2. D

24、efinitionsThe terms used in this supplement are defined inANSI/AWS A3.0-89, Standard Welding Terms andDefi-nitions, and AWS QC7-93.G3. Responsibilities RegardingAWS Certified WeldersG3.1 Employers Responsibility. The employers ofAWS Certified Welders are responsible for the workperformed by their em

25、ployees. The employer may ac-cept the AWS certification without additional testing, ormay add requirements as deemed necessary to meet theirparticular needs.G3.2 Employers Obligation. Manufacturers or con-tractors about to employ or employing AWS CertifiedWelders should be fully aware of the provisi

26、ons of theAWS QC7-93 standard and this Supplement.G3.2.1 The employer is responsible for all work per-formed by their employees; and therefore, should verifythat the qualification(s) apply to the employers work.The employer shall determine specifically that theextent of qualification as stated on th

27、e AWS WelderCertification Card, and the accompanying documenta-tion encompass the welding to be performed.G3.2.2 The employer may obtain a copy of the weld-ers Performance Qualification Test Record, and otherrelated documents, required by this supplement from theAWS Q&C Department.G3.23 The welders

28、current status shall be verifiedwith the AWS Q&C Department.G3.2.4 The employer shall prepare and sign a certifi-cation record for each welder which shall include thecompleted Performance Test Description and test accept-ance criteria (if not a referenced published standard).G3.2.5 The employer shal

29、l specify the standard, orcustomer specification, and WPS for which the welder isto be qualified. This is to be accomplished by the employerG-lG-2providing the Accredited Test Facility, the WPS andacceptance criteria to be used for qualification testing.G3.2.6 The user of AWS QC7-93 may require thea

30、pproval of the inspector, engineer of record, or owner.The employer shall obtain such approval when required.G3.2.7 If the employer or inspector questions thewelders ability for a specific reason, the employer orinspector should file a formal documentation with theAWS Q&C Department in accordance wi

31、th AWS QC7-93,13, Revocation.G3 J AWS ResponsibilitiesG3.3.1 The AWS Q&C Department shall be respon-sible to maintain the following:(1) Application for AWS Certified Welder(2) Welder qualification test records(3) Decertification action reports(4) Maintenance of certification records(5) National Regi

32、stry of Welders(6) List of Accredited Test Facilities(7) Welding Procedure Specification (WPS)(8) Procedure Qualification Record (PQR)(9) Acceptance criteriaG3.3.2 The Q&C Department will provide, upon re-quest, individual welder verification of maintenance ofcertification.G3 J3 The Q&C Department w

33、ill provide databasesearches upon request. These searches will include onlythose authorizing public disclosure on the applicationform.G3.4 Test Facility Responsibility. The test facility isresponsible for safety and health matters during testing atthat location in addition to other requirements stat

34、edherein.G4. Provision for TestingG4.1 Welding Procedure Specification (WPS). TheWPSs used to qualify welders according to this supple-ment shall be provided by the employer to the Accredit-ed Test Facility. The employer may utilize AWS standardwelding procedures. Neither AWS nor the AccreditedTest

35、Facility has any responsibility in ensuring that em-ployer supplied WPSs, are applicable for productionapplications, or that successful welder qualification testresults will be obtained from their use. Providing awritten WPS for production applications is the responsi-bility of the employer.G4.2 Acc

36、eptance Criteria. Acceptance criteria forwelder qualification testing may either reference accept-ance criteria from recognized, referenced published stan-dards on the WPS document, or the employer may sub-mit written acceptance criteria to the Accredited TestFacility for use in evaluating their emp

37、loyees qualifica-tion test results. If provided by the employer, the accept-ance criteria shall become a part of the WelderCertification Record and must accompany the applicationand supporting documents for record purposes by AWSQ&C Department.G43 Test Facilities. The test facilities for the AWSWeld

38、er Certification Program shall meet all of the re-quirements of AWS QC4.G4.3.1 The Accredited Test Facility shall have theresponsibility to forward a copy of the welders certifica-tion test procedure (WPS/PQR) and qualification testacceptance criteriaif not a referenced published stan-dard to the AW

39、S Q&C Department. AWS standardwelding procedures are excluded from this requirement.In addition, for test procedures used to certify more thanone welder, only a single submission of the procedurerevision used is required.G5. Qualification Test RequirementsG5.1 Test Control. Performance qualification

40、 test cou-pons shall be welded in accordance with a written WPSas indicated in G4.1.G5.2 Test ResponsibilitiesG5.2.1 Qualification testing shall be performed underthe direction of a Test Supervisor. The Test Supervisorshall be a current AWS Certified Welding Inspector(CWI) in accordance with AWS QC1

41、, Standard for Qual-ification and Certification of Welding Inspectors.G5.2.2 The Test Supervisor shall be responsible forthe performance qualification in accordance with thisSupplement.G5.2-3 If during qualification testing the Test Super-visor determines that the welder does not exhibit the skillre

42、quired to perform the test satisfactorily, the test may beterminated.G5.2.4 The Test Supervisor may allow a welder toretest immediately or may require additional documentedtraining or practice prior to retesting in accordance with7. Retests.G5.2.5 The Test Supervisor shall be responsible forenforcem

43、ent of test shop safety rules, procedures, andhousekeeping as required by the Test Facility QA Manual.G5.3 Qualification. The test facility is responsible forthe actual qualification of the candidate welder. The TestSupervisor attests to the application of specified testG-3variables and acceptance c

44、riteria provided or referencedby the employer.G6. Performance TestG6.1 Identification. The applicant shall be assigned anidentifying letter, symbol, or number coded to the appli-cant, and this identifier shall be marked on test materialsand records.G6.2 Verification. Prior to the initiation of weldi

45、ng,the applicants photographic identification shall bechecked by the Test Supervisor.G6.3 Safety Equipment The applicant shall use per-sonal safety equipment applicable for the welding proc-ess. The safety requirements of the Accredited TestFacility shall conform to the requirements of ANSI/ASCZ49.1

46、, Safety in Welding and Cutting, and shall be fol-lowed by the welder.G6.4 Material and Equipment Check. The energysource, base material, filler metal, and fluxes and gasesshall be checked by the Test Supervisor prior to tackwelding and initiation of joint welding.G6.5 Fit-Up. The applicant shall as

47、semble the speci-fied test assembly(ies) for welding in accordance withthe requirements of the WPS. Test pieces may be assem-bled and tack welded in any position. The Test Supervi-sor shall verify the test assembly prior to welding inaccordance with the requirements of the WPS.G6.6 Assembly Control.

48、 The Test Supervisor shall wit-ness placing of each test assembly in the specified weld-ing position and shall mark the test assembly or secure itsuch that it remains in the specified position until weld-ing has been completed.G6.7 Positioning. All cleaning, grinding, chipping ofslag, or other in-pr

49、ocess operations shall be performedwith the test assembly in the specified welding position.Evidence of removal of the test assembly or movementfrom the original location, except by accidental means(subject to concurrence by the Test Supervisor), shall because for test termination.G6.8 Examination and Testing Methods andAcceptance StandardsG6.8.1 Visual Examination. The test specimens shallmeet the visual acceptance criteria as provided in G4.2.The visual examination shall be performed by a CertifiedWelding Inspector.G6.8.2 Mechanical Testing. The mechanical test-ing and ac