AWS QC20:2011

Specification for AWS Certification of Resistance

Welding Technicians

AWS QC20:2011

Specification for AWS Certification of Resistance Welding Technicians

1st Edition

Prepared by the American Welding Society (AWS) Subcommittee on Resistance Welding

Under the Direction of the AWS Certification Committee

Approved by the AWS Board of Directors

Abstract

This specification defines the certification program of the American Welding Society for use in the Certification of Resistance Welding Technicians (CRWTs). These certifications require documentation of experience, and satisfactory completion of a written examination. The examination tests the CRWT’s knowledge of welding processes, welding pro- cedures, destructive and nondestructive tests, welding terms, definitions, symbols, reports, safety, quality assurance and responsibilities, machine setup, and other related subjects. Successful completion of all requirements constitutes the basis for awarding a certification as a Resistance Welding Technician.

550 N.W. LeJeune Road, Miami, FL 33126

International Standard Book Number: 978-0-87171-788-7

American Welding Society 550 N.W. LeJeune Road, Miami, FL 33126

© 2011 by American Welding Society

All rights reserved Printed in the United States of America

Photocopy Rights. No portion of this specification may be reproduced, stored in a retrieval system, or transmitted in any form, including mechanical, photocopying, recording, or otherwise, without the prior written permission of the copyright owner.

Authorization to photocopy items for internal, personal, or educational classroom use only or the internal, personal, or educational classroom use only of specific clients is granted by the American Welding Society provided that the appropriate fee is paid to the Copyright Clearance Center, 222 Rosewood Drive, Danvers, MA 01923, tel: (978) 750-8400; Internet:

<www.copyright.com>.

Statement on the Use of American Welding Society Standards

All standards (codes, specifications, recommended practices, methods, classifications, and guides) of the American Welding Society (AWS) are voluntary consensus standards that are developed through a consensus standards development process that brings together volunteers representing varied viewpoints and interests to achieve consensus. While the American Welding Society administers the process and establishes rules to promote fairness in the development of consensus, it does not independently test, evaluate, or verify the accuracy of any information or the soundness of any judgments contained in its standards. Further, given the rapid changes in the field, AWS cannot warrant that the certification standard will at all times reflect the most current knowledge.

Certification is achieved by satisfying a combination of defined education, experience, and/or examination requirements. Certification is not an assurance of future competence or ability.

AWS disclaims liability for any injury to persons or to property, or other damages of any nature whatsoever, including special, indirect, consequential or compensatory damages, directly or indirectly resulting from the negligent conduct or other acts or omissions of any individual certified by AWS.

In issuing and making this standard available, AWS is not undertaking to render professional or other services for or on behalf of any person or entity. Nor is AWS undertaking to perform a duty owed by any person or entity to someone else. Employers and other persons utilizing the services individuals certified by AWS are responsible for determining the qualifications, competence, and ability of those individuals.

This standard may be superseded by the issuance of new editions. Users should ensure that they have the latest edition.

Publication of this standard does not authorize infringement of any patent or trade name. Users of this standard accept any and all liabilities for infringement of any patent or trade name items. AWS disclaims liability for the infringement of any patent or product trade name resulting from the use of this standard.

Finally, the American Welding Society does not require that any member or other person become certified by AWS or utilize the services of one who is certified by AWS.

On occasion, text, tables, or figures are printed incorrectly, constituting errata. Such errata, when discovered are posted on the AWS web page (www.aws.org).

Official interpretations of any of the technical requirements of this standard may only be obtained by sending a request, in writing, to the Director, Certification Programs, Certification Department, American Welding Society, 550 N.W. LeJeune Road, Miami, FL 33126. With regard to certification 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 interpretations of 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 Certification Committee. Comments (recommendations, additions, or deletions) and any pertinent data that may be of use in improving this standard are welcomed and should be addressed to AWS Headquarters. Such comments will receive careful consideration by the AWS Certification 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 Certification Committee to express their comments verbally. Procedures for appeal of an adverse decision concerning all such comments are provided in the Rules of Operation of the Certification Committee. A copy of these Rules can be obtained from the American Welding Society, 550 N.W. LeJeune Road, Miami, FL 33126.

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Personnel

AWS Certification Committee

1. K. Wiswesser, Chair Welder Training & Testing Institute

2. L. Raymond, 1st Vice Chair International Training Institute

G. G. Hlifka, 2nd Vice Chair Babcock & Wilcox Nuclear Energy, Incorporated

N. A. Chapman, 3rd Vice Chair Entergy Nuclear

L. Henderson, Secretary American Welding Society

R. L. Arn* WeldTech International

K. W. Coryell Consultant

B. Craft Trinity Industries, Incorporated

1. L. Deckard Parsons Brinckerhoff Transit and Rail Systems,

   Incorporated

   1. K. Eden United Association, Local 430

      G. J. Frederick Electric Power Research Institute

      J. E. Greer Moraine Valley Community College

      J. D. Hollison Performance Mechanical, Incorporated

      J. H. Hope Consultant

      J. P. Kane Pennoni Associates

      P. F. Martin United Association

      A. J. Moore Marion Testing & Inspection

      R. N. Munroe Ironworkers Local 15

      T. Peshia Garbe Iron Works, Incorporated

      M. Stone Canadian Welding Bureau

      
      

      AWS Subcommittee on Certification of Resistance Welding

      G. J. Frederick, Chair Electric Power Research Institute

      D. F. Maatz, Jr., Vice Chair Roman Engineering Services

   2. M. López Del Rincón, Secretary American Welding Society

C. P. Breidenbaugh KVA Resistance Welding Supply

B. Burns LORS Machinery, Incorporated

K. R. Chan Huys Welding Strategies Limited

1. Cubert Sciaky, Incorporated

   1. Dally Standard Resistance Welder Company

      R. Hirsch Unitrol Electronics, Incorporated

   2. Hofman Roman Engineering Services

T. Lario Fusion Welding Solutions, Incorporated

R. Leibovitz Unitrol Electronics, Incorporated

B. Matteson Taylor-Winfield Corporation

B. Qualls Consultant

J. Schemel CMW, Incorporated

T. J. Snow, Jr. T. J. Snow Company, Incorporated

D. Sorenson Entron Controls, LLC

*Advisory Member

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Foreword

This foreword is not part of AWS QC20:2011, Specification for AWS Certification of Certified Resistance Welding Technicians, but is included for informational purposes only.

This standard was developed by the Certification Committee in response to an industry demand for certification of resis- tance welding technicians.

The AWS Certification Committee was formed in 1975. The Committee is composed of representatives throughout industry and academia who have interests and experience in the certification of resistance welding technicians. This is one of several documents produced by the committee covering welding personnel and facilities.

Comments and suggestions for the improvement of this standard are welcome. They should be sent to the Secretary, AWS Certification Committee, American Welding Society, 550 N.W. LeJeune Road, Miami, FL 33126.

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Table of Contents

Page No.

Personnel v

Foreword vii

1. Scope 1

2. Normative References 1

3. Levels of Certification 1

4. Definitions 1

5. Functions 2

6. Education and Experience Requirements 2

7. Examination Requirements 3

8. Certification 3

   1. Documentation 3

   2. Verification 3

   3. Use and Display of Documentation 3

   4. Reciprocity 4

9. Revocation 4

   1. Committee 4

   2. Courts 4

10. Reinstatement 4

11. Upgrading of Certification 4

12. Renewal by Recertification 4

    1. Responsibilities 4

    2. Renewal by Recertification Period 4

Annex A (Informative)—Commentary 5

Annex B (Informative)—Certification Questions and Answers. 7

Annex C (Informative)—Notes on the Examination 9

Annex D (Informative)—What to Bring to the Examination Site 11

Annex E (Informative)—What Not to Bring to the Examination Site 13

Annex F (Informative)—Informative References 15

List of AWS Documents on Certification 17

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Specification for AWS Certification of Resistance Welding Technicians

1. Scope

   1. This specification establishes the requirements for AWS certification of resistance welding technicians. It describes how personnel are certified, and the principles of conduct and practice by which certification may be maintained. Any oral or written claim of certification under the guidelines established herein shall be made only by those individual Certified Resistance Welding Techni- cians (CRWTs) who are, at the time of the claim, current and in compliance with all clauses of this specification.

      
      

   2. In the certification process, AWS conducts an exami- nation to determine a person’s general knowledge of the resistance welding processes and related technical areas. No determination is made of an individual’s capabilities in applying that knowledge within a specific work envi- ronment, nor under actual working conditions.

      
      

   3. In the certification process, the employer is responsi- ble for determining that a person has specific capabilities required for a given work assignment and other qualifica- tions as stated herein.

      
      

   4. It shall be the responsibility of the employers to determine that the CRWT is capable of performing the duties involved in their particular welding environment, and to provide or make available such training or indoc- trination as may be required.

      
      

   5. This specification is intended to supplement the re- quirements of an employer, code, or other documents and shall not be construed as a preemption of the employer’s responsibility for the work or for the performance of the work.

      
      

   6. Safety Precautions. This document is not intended to address safety and health matters regarding the CRWT. Safety and health requirements are provided in ANSI Z49.1, Safety in Welding, Cutting, and Allied

      
      

      Processes1 and other safety and health standards, and federal, state, and local government regulations. This document only covers the rules of personnel certification.

      
      

2. Normative References

   The standards listed below contain provisions, which, through reference in this text, constitute mandatory pro- visions of this AWS standard. For undated references, the latest edition of the referenced standard shall apply. For dated references, subsequent amendments to, or revi- sions of, any of these publications do not apply.

   1. AWS A3.0M/A3.0, Standard Welding Terms and Definitions2

   2. AWS C1.5, Specification for the Qualification of Resistance Welding Technicians2

   
   

3. Levels of Certification

   There is one level of AWS certification, as detailed in AWS C1.5, and is titled Certified Resistance Welding Technician (CRWT).

   
   

4. Definitions and Abbreviations

The welding terms used in this specification are not defined in AWS A3.0. Other terms used in this specifica- tion are defined as follows:

approved. To accept as satisfactory.

1 ANSI Z49.1 is published by the American Welding Society, 550 N.W. LeJeune Road, Miami, FL 33126.

2 AWS standards are published by the American Welding Society, 550 N.W. LeJeune Road, Miami, FL 33126.