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CCOG for WLD 223 Winter 2022

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Course Number:
WLD 223
Course Title:
Gas Tungsten Arc Welding: Stainless Steel
Credit Hours:
4
Lecture Hours:
0
Lecture/Lab Hours:
80
Lab Hours:
0

Course Description

Develops knowledge and skills required to weld common joints in all positions on stainless steel using the gas tungsten arc welding (GTAW) process. Prerequisites: Department permission required. 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 should be able to:

  • Function safely in the PCC Welding Lab.
  • Interpret blueprints to accurately lay out, prepare and  weld joints.
  • Understand and apply fundamentals of GTAW operations.
  • Weld common joints using gas tungsten arc welding 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 student 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

Interpret drawing and symbols to accurately lay out, prepare and assemble weld joints on stainless steel.

  • Interpret lines, symbols and verbiage on project drawings
  • Layout material per drawing specifications
  • Assemble weld project per specification

Understand and apply fundamentals of GTAW operations on stainless 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 on stainless steel with the Gas Tungsten Arc Welding (GTAW) process to AWS D1.1 Structural Steel Welding Code visual acceptance criteria in all positions.

Flat Position

  • Fuse weld a flat position edge joint
  • Fuse weld a flat position corner joint
  • Weld a flat position Butt joint

Horizontal Position:

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

Vertical Position:

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

Over head Position

  • T-Joint
  • Lap Joint
  • Outside Corner joint

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

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