Supplement C— Welder Sheet Metal Test Requirements

Transcription

AWS QC7-93 Supplement CSupplement C—WelderPerformanceQualificationSheet Metal TestRequirements

Key Words — AWS Certified Welders, sheetAWS QC7-93, Supplement Cmetal welding, welders, weldercertification, welder qualificationWelder Performance QualificationSheet Metal Test RequirementsDeveloped byAWS Qualification and Certification CommitteeUnder the Direction ofAWS Education and Certification CouncilApproved byAWS Board of DirectorsApril 4, 1994AbstractThis Supplement C to AWS Standard QC7, Standardfor AWS Certified Welder Program, describes testing administratedby Accredited Test Facilities to the requirements of AWS QC4-89, Standardfor Accreditation of Test Facilities for AWSCertified Welder Program. The welder performance testing for this Supplement was developed using ANSI/A WS D9.1,Sheet Metal Welding Code, as reference.American Welding Society550 N.W. LeJeune Road, Miami, Florida 33126

Statement 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. When AWS standards are either incorporated in, or made part of, documents thatare included in federal or state laws and regulations, or the regulations of other governmental bodies, their provisionscarry the full legal authority of the statute. In such cases, any changes in those AWS standards must be approved by thegovernmental body having statutory jurisdiction before they can become a part of those laws and regulations. In allcases, these standards carry the full legal authority of the contract or other document that invokes the AWS standards.Where this contractual relationship exists, changes in or deviations from requirements of an AWS standard must be byagreement between the contracting parties.International Standard Book Number: 0-87171-445-0American Welding Society, 550 N.W. LeJeune Road, Miami, Florida 33126 1994 by American Welding Society. All rights reservedPrinted in the United Slates 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 and 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 these standards may be required to adhere. By publishing this standard, the American Welding Societydoes not 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. Usersof the information in this standard should make an independent, subsiantiating investigation of the validity of thatinformation for their 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 the particular individuals giving them. These individuals do not speak on behalf of AWS, nor do these oral opinions constitute official or unofficial opinions or interpretationsof AWS. In addition, oral opinions are informal and should not be used as a substitute for an official interpretation.This standard 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 this standard are requested and should beaddressed to AWS Headquarters. Such comments will receive careful consideration by the AWS Qualification andCertification Committee and the author of the comments will be informed of the Committee's response to the comments.Guests are invited to attend all meetings of the AWS Qualification and Certification Committee to express theircomments verbally. Procedures for appeal of an adverse decision concerning all such comments are provided in theRules of Operation of the Qualification and Certification Committee. A copy of these Rules can be obtained from theAmerican Welding Society, 550 N.W. LeJeune Road, Miami, Florida 33126.

PersonnelAWS Committee on Qualification and CertificationC. E. Pepper, Chairmanft. K. Wiswesser, 1st Vice ChairmanJ. F. Harris, 2nd Vice ChairmanL P. Connor, SecretaryE. M. Beck *W. F. BehnkeE. R. BohnartH. ChapmanH. F. Clark IIA.L Collin*P. R. EvansH. W. GoserW. L Green"J. E. GreerM. L Houle*W. H. KennedyR. E. LongS. P. MartinR. D. MesserA. L PerroskiR. R. PicardS. L. RaymondT. Schlafly *S. W Scott*R. M. Simons*W. F. Urbick*R. F. WaiteF. G. DeLaurier, Ex-OfficioL G. Kvidahl. Ex-OfficioR. J. Dybas. Ex-OfficioJ. C. Papritan, Ex-OfficioOak Ridge Nai'l LaboratoryWelder Training and Testing InstituteCenterior EnergyAmerican Welding SocietyLaw Engineering IncorporatedFord Motor Company/Sterling PlantMiller Electric Manufacturing CompanyConsultantFluor Daniel, IncorporatedConsulting EngineerB&W Nuclear TechnologiesStupp Brothers Bridge and Iron CompanyRetired. Ohio State UniversityMoraine Valley Community CollegeConsultantCanadian Welding BureauConsultantGeneral Dynamics Land SystemsExxon ChemicalValmet Paper MachineryASEA Brown BoveriNaiionai Training Fund/Sheet Metal WorkersA1SCWestinghouse Hanford CompanyWashington Public Supply SystemWelding Management ConsultantsConsultantAmerican Welding SocietyAmerican Welding Society PresidentGeneral ElectricOhio State University"Advisorin

AWS Subcommittee on Certification of Welders/Welding OperatorsR. K. Wiswesser, ChairmanJ. H. BatchH. ChapmanH. F. Clark, IIA. L Collin*D. H. DelkP. R. EvansH. W. GoserR. L Harris*R. E. LongR. D. MesserJ. S. Pawluk*C. E. PepperA. L PetroskiL C. PrattS. L. RaymondM. L Slaton*L D. SmithW. E. StrateW. F. Urbick AdvisotWelder Training and Testing InstituteNational Pipeline Welding SchoolConsultantFluor Daniel IncorporatedConsulting EngineerUnited States Air ForceB&W Nuclear TechnologiesStupp Brothers Bridge and Iron CompanyConsultantConsultantExxon ChemicalWestern Nevada Community CollegeOak Ridge National LaboratoryValmet Paper MachineryIngalls ShipbuildingNational Training Fund/Sheet Metal WorkersThe Pritchard CorporationBeloit Corporation/Paper Machinery DivisionStrate Welding Supply CompanyWelding Management Consultants

Foreword(This Foreword is not a part of Supplement C to AWS QC7-93, Standard for AWS Certified Welders, but is includedonly for information.)The American Welding Society (AWS) Certified Welder Program is established to identify all elements necessary toimplement a National Registry of Certified Welders. Four key elements are identified:(1) Welder performance qualification standards(2) Standard welding procedure specifications(3) Accredited performance qualification test facilities(4) AWS welder certification requirementsSupplement C, Welder Performance Qualification Sheet Metal Test Requirements and AWS QC7-93, Standard forAWS Certified Welders, contain the criteria for AWS Certified Welder Program and the AWS National Registry' ofWelders. Public listing or disclosure is at the option of the individual welder. It is expected that all four elementsoutlined above will allow the transfer of welder qualification from employer to employer. This potential transfer ofwelder qualification can affect financial savings to the welding industry.The purpose of the QC7-93 is to document the ability of welders to deposit sound welds in accordance withstandardized requirements and to impose sufficient controls on the documentation and maintenance of certification toallow transfer between employers without requalification, where allowed by Standard or Contract documents.Supplement C shall be used in conjunction with AWS QC7-93. This Supplement C is not a standard unto itself andshall be considered only as a supplementary part of AWS QC7-93. The intent of this supplement is 10 provide welderperformance test data to the industry that all employers may use without retesting each welder.This supplement does not apply to employers that conduct welder qualification tests for iheir own employees inaccordance with ANSL/AWS D9.1, Sheet Metal Welding Code Supplement C to AWS QC7-93 specifies requirementsintended to provide an alternative welders certification method to comply with the requirements of ANSI/AWS D9.1.

Table of ContentsPage No.PersonnelForewordiiivCl. ScopeC1.1 ProgramC1.2 ExclusionC1.3 LimitationC1.4Safely Precautions11111C2. Definitions1C3. Responsibilities Regarding AWS Certified WeldersC3.1 Employer ResponsibilityC3.2 Employer ObligationC3.3 Qualification &Certification Department ResponsibilitiesC3.4 Test Facility ResponsibilitiesC4. Provisions for TestingC4.1 Welding Procedure Specification (WPS)C4.2 Test Facilities11122222C5. Certification RequisitesC5.1 Test ControlC5.2 Test SupervisorC5.3 Test Facility2222C6. Performance TestC6.1 IdentificationC6.2 VerificationC6.3 Safety EquipmentC6.4 Machine AdjustmentC6.5 Material CheckC6.6 Fit-UpC6.7 Assembly ControlC6.8 PositioningC6.9 Eye CorrectionC6.10 Power Tools22222222233C7. Examination Methods and Acceptance Standards3C8. RetestsC8.1 Immediate RetestC8.2 Retest Alter Further Training or Practice333C9. Documentation of Welder Performance Qualification3CIO. Period of Effectiveness3

Cl 1. Identification/Certification Documents3C12. Maintenance of Certification3C13. Renewal of Certification3C14. Revocation3FormsQC-WF1C —Welder Qualification Test RecordQC-WF3A — Maintenance of Certification45List of Performance Test DescriptionsC-l GMAW — 18 Gauge Coated SteelC-2 GMAW — 18 Gauge Coated SteelC-3 GMAW — 18 Gauge Coaled SteelC-4 GMAW — 10 Gauge Coated SteelC-5 GMAW — 10 Gauge Coated SteelC-6 GMAW — 10 Gauge Coated SteelC-7 GMAW — 18 Gauge Stainless SteelC-8GMAW— 18 Gauge Stainless SteelC-9 GMAW — 18 Gauge Stainless SteelCOO GMAW — 10 Gauge Stainless SteelCO 1 GMAW — 10 Gauge Stainless SteelCO2 GMAW — 10 Gauge Stainless Steel6810121416182022242628

Supplement CWelder Performance QualificationSheet Metal Test RequirementsCl. ScopeC2. DefinitionsThis Supplement C to AWS QC7-93. Standard forAWS Certified Welders, specifies requirements intendedto provide an alternative welders certification method.The rules for performance qualification are defined inANSI/A WS D9.1, Sheet Metal Welding Code. When theterm certified welder is used it shall also denote "weldingoperator."The terms used in this Supplement C are defined inAWS QC7-93 and ANSI/A WS A3.0, Standard WeldingTerms and Definitions, except as follows:Cl.l Program. The administraiive rules for the American Welding Society (AWS) Certified Welder Programand the requirements for maintenance of certification areprovided in AWS QC7-93, Standard for AWS CertifiedWelders. Test facilities participating in the program arerequired to meet AWS QC4, Standard for Accreditationof Test Facilities for AWS Certified Welder Program.C3. Responsibilities RegardingAWS Certified WeldersEmployer. The term is used collectively to mean contractor, fabricator, erector or manufacturer.C3.1 Employer Responsibility. The employers of AWSCertified Welders are responsible for the work performedby their employees. The employers may accept the AWScertification without additional testing or may add requirements as deemed necessary to meet their particularneed.C1.2 Exclusion. Neither AWS QC7-93 nor this Supplement C prevents or supersedes a Contractor fromcontinuing to qualify welders in accordance with ANSI/AWS D9.1 or other standards. Employers may imposesupplementary requirements in addition to this standard.C3.2 Employer Obligation. Companies who employAWS certified welders should be fully aware of theprovisions of the AWS QC7-93 standard and of thisSupplement C.C O Limitation. Welders participating in the AWSCertified Welder Program shall be limited to those welding essential variables defined in the applicable Performance Tests Descriptions.C3.2.1 Employers should specifically note the extentof qualification as staled on the AWS welder certification card.C1.4 Safety Precautions. This document is not intendedto address safety and health matters regarding the training of certified welders. This document only covers therules ol certification of welders to AWS QC7-93.C3.2.2 The employer shall obtain a copy of the Performance Qualification Test Record from the AWS Qualification and Certification Department.C-l

CO.C3.2J The welders current status shall be checkedwith the Qualification and Certification Department.C3.2.4 The employer shall maintain a record of performance for all welders during their periods of employment. The backup record to be filed with the employer'scertification shall be the completed Performance TestDescription and Limitation of Variables form preparedby the Accredited Test Facilities. A suggested certification record is shown in Form QC-WFC1, Welder Qualification Test Record.C3.2.5 The Employer is responsible for all work performed by their employees; and therefore, should verifythat the qualification(s) apply to each employee's work.C3.2.6 The use of these qualifications may requirethe approval of the Engineer or Owner. The employershall obtain such approval when required.C3.3 Qualification and Certification Department Responsibilities. The Qualification and Certification Department shall complete the responsibilities defined inAWS QC7-93, 3.3.C3.4 Test Facility Responsibilities. The Test Facilityis responsible for safety and health matters during testingat that location in addition to other requirements statedherein.C4. Provisions for TestingC4.1 Welding Procedure Specification (WPS). TheWPSs incorporated in this Supplement C shall be used toqu

AWS D9.1 or other standards. Employers may impose supplementary requirements in addition to this standard. CO Limitation. Welders participating in the AWS Certified Welder Program shall be limited to those weld-ing essential variables defined in the applicable Perform-ance Tests Descriptions. C1.4 Safety Precautions. This document is not intended to address safety and health matters regarding .