Course Content and Outcomes Guides (CCOG)

CCOG for WLD 221 archive revision 202201

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Effective Term:
Winter 2022 through Winter 2025

Course Number:
WLD 221
Course Title:
Gas Tungsten Arc Welding Mild Steel
Credit Hours:
4
Lecture Hours:
0
Lecture/Lab Hours:
80
Lab Hours:
0

Course Description

Develops knowledge and skills welding common joints in all positions on mild steel using the Gas Tungsten Arc Welding (GTAW) process. Audit available.

Addendum to Course Description

This is an outcome based course utilizing a lecture/lab format. This course includes classroom discussions, videotapes, and lab demonstrations of technical skills.  Course outcomes will include: theoretical concepts, layout, fabrication and welding, 

Intended Outcomes for the course

Upon completion of the course students will be able to:

  • Function safely in the PCC Welding Lab.
  • Interpret blueprints to accurately lay out, prepare, and assemble weld joints.
  • Understand and apply fundamentals of GTAW operations on mild steel.
  • Weld common joint assemblies with GTAW to AWS D1.1 Structural Steel Welding Code visual acceptance criteria in all positions.
  • Apply visual examination principles and practices in accordance with AWS D1.1.

Course Activities and Design

Welding lec/lab courses are Open Entry and Open Exit (OE/OE) and are offered concurrently. Courses are designed to meet the needs of the students with flexible scheduling options.  Students may attend full time or part time. This is an OE/OE course which does not align with the normal academic calendar.

Outcome Assessment Strategies

The student will be assessed on his/her ability to demonstrate the development of course outcomes. The methods of assessment may include one or more of the following: oral or written examinations, quizzes, written assignments, visual inspection, welding tests and task performance.   

Course Content (Themes, Concepts, Issues and Skills)

Function safely in the PCC Welding Lab.

  • Understand and practice personal safety by using proper protective gear
  • Understand and practice power tool safety
  • Understand and maintain a safe work area
    • Recognize and report dangerous electrical and air/gas hose connections
    • Understand and practice fire prevention

Interpret blueprints to accurately lay out, prepare, and assemble weld joints on mild steel.

  • Interpret lines, symbols, views and notes
  • Lay out material per specifications
  • Assemble project per specifications

 Understand and apply fundamentals of GTAW operations on mild steel.

  • Describe and demonstrate equipment setup, shut down, and operation
  • Identify  electrode types
  • Demonstrate proper arc length and travel speed
  • Demonstrate correct starting, stopping and restarting techniques
  • Demonstrate proper bead placement

Weld common joint assemblies with the GTAW to AWS D1.1 Structural Steel Welding Code visual acceptance criteria in the following joints and positions:

 Flat Position:

  • Fuse weld a flat position edge joint
  • Fuse weld flat position corner joint
    • Butt joint
    • T-Joint

Horizontal Position:

  • T-Joint
  • Lap Joint
  • Outside Corner Joint
  • Butt Joint

Vertical Position:

  • T-Joint  
  • Lap Joint
  • Outside Corner Joint
  • Butt Joint

Overhead Position:

  • T-Joint
  • Lap Joint
  • Outside Corner Joint               

Apply visual examination principles and practices in accordance with AWS D1.1.

  • Evaluate welds using appropriate welding inspection tools
  • Assess weld discontinuities causes and corrections