MCCCD Program Description

SMAW Code Welding Pipe

Course: WLD208AD

First Term: 2020 Fall

Lec + Lab 5.0 Credit(s) 8.0 Period(s) 8.0 Load
Subject Type: Occupational
Load Formula: T - Lab Load

Description: Advanced training in pipe welding using either shielded metal arc welding (SMAW), gas metal arc welding (GMAW), or flux cored arc welding (FCAW) with emphasis on achieving successful welder performance qualification testing in any position. Focus is on groove weld joints per industry codes.

MCCCD Official Course Competencies
1. Adhere to industry safety regulations applicable to welding environments. (I) 2. Demonstrate proficient use of power sources, tools, and equipment in welding and cutting processes. (I, IV-VII) 3. Create basic technical drawings using welding symbols. (II) 4. Create welding procedure specifications (WPS). (III) 5. Identify pipe alloys, diameters, and schedules. (IV) 6. Prepare and fit-up weldments according to industry standards and welding procedure specifications (WPS). (V) 7. Perform groove welds in any position per industry standards. (VI) 8. Repair weld discontinuities per industry standards. (VI, VII) 9. Create acceptable performance qualification test coupon(s) for submission to a third-party testing agency for industry certification. (VI-VIII) 10. Use visual inspection techniques to assure weld quality. (VII) 11. Describe destructive and non-destructive testing methods used in the industry. (IX) 12. Identify challenges and employment opportunities within the field of welding. (X) 13. Demonstrate professional knowledge and personal accountability. (XI) 14. Document work according to industry standards. (XII)
MCCCD Official Course Competencies must be coordinated with the content outline so that each major point in the outline serves one or more competencies. MCCCD faculty retains authority in determining the pedagogical approach, methodology, content sequencing, and assessment metrics for student work. Please see individual course syllabi for additional information, including specific course requirements.

MCCCD Official Course Outline
I. Safety A. Personal protective equipment B. Workplace environment C. Power sources, tools, and equipment for cutting and welding II. Technical drawings and welding symbols III. Welding procedure specification (WPS) A. Essential variables B. Non-essential variables C. Procedure qualification records (PQR) D. Prequalified welding procedures E. Standard welding procedures IV. Pipe considerations A. Nominal inside diameter B. Schedule (wall thickness) C. Alloy V. Weld preparation per code specifications A. Size and shape B. Types of joints C. Edge preparations and fit-up D. Preheat/postheat VI. Performing the weld and critical considerations A. Filler material selection B. Standard pipe positions (1G, 2G, 5G, 6G) C. Constant voltage/constant current (CV/CC) D. Electrode position in puddle (leading edge) E. Shielding gas F. Length of contact tip to work distance (CTWD/stick-out) G. Speed of travel H. Working angle I. Rate of cooling J. Puddle manipulation techniques K. Nozzle maintenance VII. Weld quality A. Industry standards B. Penetration C. Fusion D. Multi-passes E. Weld bead profile F. Weld discontinuities 1. Undercut/underfill 2. Porosity 3. Slag inclusion 4. Incomplete fusion 5. Incomplete penetration 6. Overlap 7. Root concavity (suck-back) 8. Excessive face/root reinforcement 9. Misalignment (hi/lo) 10. Arc strikes 11. Cracks G. Repair 1. Identification of discontinuity 2. Preparation 3. Process performance VIII. Testing and certification per code requirements IX. Testing methods A. Destructive test methods B. Non-destructive test methods X. Employment challenges and opportunities A. Manufacturing B. Construction C. Nuclear D. Aerospace E. Maintenance XI. Accountability A. Ethics B. Professionalism XII. Work documentation A. Welding procedure specification (WPS) B. Welder performance qualification record (WPQR)

MCCCD Governing Board Approval Date: December 10, 2019

All information published is subject to change without notice. Every effort has been made to ensure the accuracy of information presented, but based on the dynamic nature of the curricular process, course and program information is subject to change in order to reflect the most current information available.