AWS QC12-1996 Specification for Qualification and Certification for Level III - Expert Welders《III级-专业焊工的合格和注册规范》.pdf

1、Specification forQualification andCertification forLevel IIIExpertWeldersAWS QC12-96Key words expert level welder, participating AWS QC12-96organization, performance tests,acceptance criteria, National RegistrySpecification for Qualification andCertification for Level III - Expert WeldersFunded by t

2、heU.S. Department of EducationGrant V244B30006-95Prepared by theAWS Education and Certification DepartmentsUnder the Direction of theAWS Education Grant CommitteeApproved by theAWS Board of DirectorsAbstractThis standard defines the requirements and program for the American Welding Society to certif

3、y expert level welders. Thecertification of Level III - Expert Welders requires performance qualification and practical knowledge tests. These testsrequire more detailed skills of reading, computational, and manual skills to complete.American Welding Society550 N.W. LeJeune Road, Miami, Florida 3312

4、6Statement on Use of AWS StandardsAll standards (codes, specifications, recommended practices, methods, classifications, and guides) of the AmericanWelding Society are voluntary consensus standards that have been developed in accordance with the rules of theAmerican National Standards Institute. Whe

5、n AWS standards are either incorporated in, or made part of,documents that are included in federal or state laws and regulations, or the regulations of other governmentalbodies, their provisions carry the full legal authority of the statute. In such cases, any changes in those AWSstandards must be a

6、pproved by the governmental body having statutory jurisdiction before they can become a partof those laws and regulations. In all cases, these standards carry the full legal authority of the contract or otherdocument that invokes the AWS standards. Where this contractual relationship exists, changes

7、 in or deviationsfrom requirements of an AWS standard must be by agreement between the contracting parties.International Standard Book Number: 0-87171-485-XAmerican Welding Society, 550 N.W. LeJeune Road, Miami, Florida 33126 1996 by American Welding Society.All rights reservedPrinted in the United

8、States of AmericaNote: The primary purpose of AWS is to serve and benefit its members. To this end, AWS provides a forumfor the exchange, consideration, and discussion of ideas and proposals that are relevant to the welding industryand the consensus of which forms the basis for these standards. By p

9、roviding such a forum, AWS does notassume any duties to which a user of these standards may be required to adhere. By publishing this standard,the American Welding Society does not insure anyone using the information it contains against any liabilityarising from that use. Publication of a standard b

10、y the American Welding Society does not carry with it any rightto make, use, or sell any patented items. Users of the information in this standard should make an independent,substantiating investigation of the validity of that information for their particular use and the patent status of anyitem ref

11、erred to herein.With regard to technical inquiries made concerning AWS standards, oral opinions on AWS standards may berendered. However, such opinions represent only the personal opinions of the particular individuals giving them.These individuals do not speak on behalf of AWS, nor do these oral op

12、inions constitute official or unofficialopinions or interpretations of AWS. In addition, oral opinions are informal and should not be used as a substitutefor an official interpretation.This standard is subject to revision at any time by the AWS Certification Committee. Comments(recommendations, addi

13、tions, or deletions) and any pertinent data that may be of use in improving this standardare requested and should be addressed to AWS Headquarters. Such comments will receive careful considerationby the AWS Certification Committee and the author of the comments will be informed of the Committeesresp

14、onse to the comments. Guests are invited to attend all meetings of the AWS Certification Committee toexpress their comments verbally. Procedures for appeal of an adverse decision concerning all such commentsare provided in the Rules of Operation of the Technical Activities Committee. A copy of these

15、 Rules can beobtained from the American Welding Society, 550 N.W. LeJeune Road, Miami, Florida 33126.-11-PersonnelAWS Education Grant CommitteeF.G. Delaurier, ChairmanN.C. Wall, Vice ChairmanR. V. Reeve, Co-SecretaryJ.R. Hufsey, Co-SecretaryR.L. OBrien, Program ManagerJ. BartleyE.R. BohnartS.W. Boll

16、ingerF. CusmaJ.E. GreerS.C. Helzer, AdvisorJ. HoeftD.G. HowdenJ.H. IvyL.G. KvidahlR. MurrayL.W. MyersA.L. PetroskiR.C. PierceIF. Key, Ex-OfficioC.E. Pepper, Ex-OfficioRJ. Teuscher, Ex-OfficioAmerican Welding SocietyAmerican Welding SocietyAmerican Welding SocietyAmerican Welding SocietyAmerican Weld

17、ing SocietyConsulting EngineerMiller Electric Mfg. CompanyESAB Welding & Cutting ProductsPacific Northwest IronworkersStandard Refrigeration/AutoradUniversity of Northern IowaMiller Electric Mfg. CompanyThe Ohio State UniversityIngalls ShipbuildingIngalls ShipbuildingH & M Steel, Inc.Dresser-Rand, I

18、nc.Valmet, Inc. Honeycomb DivisionWelding Engineering Supply Co.Lockheed MartinLockwood Greene EngineersIndustrial Gas Products-111-Foreword(This Foreword is not a part of AWS QC12-96, Specification for Qualification and Certification of Level III -Expert Welders, but is included for information pur

19、poses only).This standard extends the work of the American Welding Society to further define a national skill standard forLevel III - Expert Welders. The American Welding Society was awarded Grant #V244B30006-95 for $1,059,626by the U.S. Department of Education to develop standards and a certificati

20、on program for welders during theperiod from July 1993 to July 1996. The total program cost is $2,132,094, of which 49.7% ($1,072,468) is anin-kind contribution by AWS.To accomplish its goals, AWS organized an Education Grant Committee, which has representatives from allsegments of the welding indus

21、try, including labor organizations and educational institutions. This Committee hasoverseen the efforts toward a standard for the qualification and certification of the Level III - Expert Welder.The development of this National Skill Standard has involved the participation of the welding industry th

22、rougha survey designed to determine a consensus of welder skills and competencies required for individuals seekingto continue the development of their welding skills.The results of this industry survey were an occupational task analysis that formed the basis for curriculumguidelines to guide the tra

23、ining of the Level III - Expert Welder candidate.This standard defines the requirements for the certification of such individuals and their entry into the NationalRegistry of Level III - Expert Welders.Comments and suggestions for improvement of this standard are welcome. They should be sent in writ

24、ing tothe Secretary, AWS Certification Committee, American Welding Society, 550 N.W. LeJeune Road, Miami,Florida 33126.-IV-Table of ContentsPage No.Personnel iiiForeword , ivList of Tables viList of Figures vi.1. Scope 12. Definitions3. Requirements for Participating Organizations , , 24. Education

25、and Work Experience 35. Written Examination , 46. Performance Tests 57. Inspection, Testing, and Acceptance Criteria 78. Documentation 79. Certification 810. National Registry of Level HI - Expert Welders 8Annex A - Visual Inspection Test Report 11Annex B - Face- and Root-Bend Test Report 2Annex C -

26、 Welding Procedure Specifications 13-V-List of TablesTable Page No.1 Inspection Criteria for Level III - Expert Welders 92 Acceptance Criteria for Face- and Root-Bends 10List of FiguresFigure Page No.1 SMAW, Carbon Steel - Pipe, Performance Qualification Test 162 SMAW, Stainless Steel - Pipe, Perfor

27、mance Qualification Test 73 GMAW-S, Carbon Steel - Pipe, Performance Qualification Test 184 GMAW-P, Aluminum - Pipe, Performance Qualification Test 95 FCAW-S, FCAW-G, Carbon Steel - Pipe, Performance Qualification Test 206 GTAW, Carbon Steel, Stainless Steel and Aluminum - Round Tubing, PerformanceQ

28、ualification Tests . . . 217 Test Pipe Specimen Locations 228 Face- and Root-Bend Specimens 39 Typical Guided-Bend Test Fixture 410 Alternative Wrap Around Bend Test Fixture 25-VI-Specification for Qualification and Certificationfor Level III - Expert Welders1. Scope1.1 This standard establishes the

29、 minimum requirements for an organization to participatewith the American Welding Society (AWS) in the qualification and certification of expertwelders.1.2 This standard specifies practical knowledge and performance tests that require a moredetailed level of reading, computational, and manual skills

30、 to successfully complete.1.3 All individuals that meet the specified performance at a facility meeting 3.Requirements for Participating Organizations will be listed in The National Registry ofLevel III - Expert Welders at the American Welding Society.1.4 Organizations not meeting 3. Requirements fo

31、r Participating Organizations may usethis standard, but individuals they certify will not be listed in the National Registry of LevelIII - Expert Welders.1.5 Although a written test including questions on safety is required by this standard, thisstandard is not intended to address safety and health.

32、 Safety and health requirements areprovided in ANSI Z49.1, Safety in Welding and Cutting, other safety and health standards, andfederal, state, and local government regulations. The responsibility for safety of the Level III -Expert Welder is primarily with the welder, the Participating Organization

33、 during training andtesting, and afterwards, with the employer.1.6 The requirements of this standard shall not supersede the authority of the trainingfacility as established by the local evaluation guidelines.2. DefinitionsThe terms used in this standard are defined in ANSI/AWS A3.0, Standard Weldin

34、g Terms andDefinitions. Other terms are defined as follows:1) Participating Organization - Any organization meeting 3. Requirements forParticipating Organizations.2) Level III - Expert Welder - An individual employed in this position is consideredto possess a prerequisite amount of knowledge, attitu

35、de, skills, and habits requiredto perform tasks autonomously, including the selection and use of appropriatetechniques and equipment, and to apply theoretical knowledge and motor skills withminimum supervision.-1-3. Requirements for Participating Organizations3.1 Participating Organizations may be t

36、raining-and-testing or testing-only facilities.3.2 Participating Organizations shall maintain and follow a quality manual that assurescompliance with this standard.3.3 An application for registration as a Participating Organization shall be submitted with acover letter signed by the Senior Official

37、at the Facility. The cover letter shall certify to AWSthat the Facility has a Quality Program which will be rigorously followed, and that therequirements of this standard will be met.3.3.1 If the Participating Organization is a training-and-testing organization, the lettershall also state that their

38、 curriculum follows AWS EG4.0, Guide for Training andQualification of Welding Personnel, Level III - Expert Welders.3.3.2 Participating Organizations already registered for the Entry Level Welder andLevel II - Advanced Welder training program must notify AWS of their intention toadminister the Level

39、 III - Expert Welder curriculum.3.4 Test supervisors for training-and-testing or testing-only Participating Organizations shouldbe AWS Certified Welding Inspectors.3.5 Instructors for testing-and-training Participating Organizations should be AWS CertifiedWelding Educators.3.6 Quality System Audits.

40、 Audits may be required if evidence of nonconformance with theParticipating Organizations Quality Program or this standard exists.3.6.1 Allegations of nonconformance supported by documentary evidence will bepresented to the AWS Certification Committee. The Committee may require:1) A written statemen

41、t by the Senior Official of the Participating Organization withsupporting evidence refuting the allegations, and a statement by the Senior Officialof the Participating Organization that the requirements of the ParticipatingOrganization Quality Program and this standard have been met in the past, and

42、 willbe met in the future, or2) An on-site quality audit by an AWS-approved assessor to verify that therequirements of the Quality Program and this standard have been and are being met.-2-3.6.2 If a quality audit is required by the Committee, then the ParticipatingOrganization has two options, as fo

43、llows:1) The Participating Organization may decline to be audited and resign from theprogram, or2) The Participating Organization may agree to be audited, in which case the SeniorOfficial of the Participating Organization shall issue a purchase order to AWS foradministrative fees and expenses of the

44、 assessor.4. Education and Work Experience4.1 Trainees desiring AWS Level III - Expert Welder Certification through training underthe requirements of AWS QC12 shall meet the requirements of sections 1.3.7 and 1.3.8 of theEG4.0-96 Guide for the Training and Qualification of Welding Personnel, Level I

45、II - ExpertWelder and document two years of multiple welding process work experience (with a minimumof 6 months fabrication experience that includes drawing interpretation, layout and fitup duties)that has a direct relationship to weldments fabricated to a code, specification or employersqualified w

46、elding procedure.4.2 Trainees desiring AWS Level III - Expert Welder Certification through testing andexamination under the requirements of AWS QC12 shall meet the requirement of sections 1.3.7and 1.3.8 of the EG4.0-96 Guide for the Training and Qualification of Welding Personnel,Level III - Expert

47、Welder and document seven years welding work experience. Said workexperience shall consist of three years in a single process and 4 years using multiple processes,(with a minimum of 6 months fabrication experience that includes drawing interpretation,layout and fitup duties) that have a direct relat

48、ionship to weldments fabricated to a code,specification or employers qualified welding procedure.4.3 At the discretion of a Participating Organization, credit for completion of individualtraining requirements and work experience may be simultaneously granted to an AWS QC12Level HI - Expert Welder ap

49、plicant provided the work experience or experiential learningmeets or exceeds the requirements for either work experience or training.-3-5. Written Examination5.1 The written examination is designed to show that the Level III - Expert Welderunderstands the following subjects:MathematicsSafe PracticesFabrication Principles and PracticesNondestructive Examination and Piping Symbol InterpretationUse of Welding Codes and StandardsWelding Inspection and TestingCutting and Welding TheoryWelding Metallurgy and WeldabilityCutting and Welding Terms and Definitions5.2 Trainees desiring AWS Leve