CCOG for WLD 271 archive revision 271

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Effective Term:
Summer 2014 through Fall 2017

Course Number:
WLD 271
Course Title:
Oxy-acetylene Welding Projects
Credit Hours:
Lecture Hours:
Lecture/Lab Hours:
Lab Hours:

Course Description

Practice hand coordination and controlling heat while welding steel with oxy-acetylene equipment using all positions. Department permission required. Audit available.

Intended Outcomes for the course

  • Function safely in the PCC Welding Shop.
  • Demonstrate professional work ethics (Habits)
  • Operate oxyfuel portable welding units in accordance with industry standards
  • Interpret drawing and symbols to accurately layout a project; prepare and assemble to specified tolerances; and weld joints in accordance to AWS D1.1.
  • Weld common joints with the Oxy-fuel welding equipment to code quality standards in the flat, vertical and horizontal Position

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 techniques, welding tests, safe work habits, task performance and work relations.    

Course Content (Themes, Concepts, Issues and Skills)

Function safely in the PCC Welding Shop.

  • Understand and practice personal safety by using proper protective gear.
  • Understand and practice hand tool and power tool safety.
  • Understand and practice equipment safety for welding and oxy fuel cutting systems.
  • Understand and maintain a safe work area.
    • Recognize and report dangerous electrical and air/gas hose connections.
    • Understand and practice fire prevention.
  • Access and explain the importance Material Safety Data Sheets (MSDS).

Demonstrate professional work ethics (Habits)

  • Track training hours on time card
  • Perform projects in accordance to specifications and procedures
  • Follow directions in a positive manner
  • Manage time productively
  • Respects equipment and others
  • Demonstrate skill in problem solving and decision making

Apply math and science concepts to the welding related process  

Math on Metal

  • Construction with Angles/Bevels
  • Construction of a Bevel (Angle) Finders


  • Source of Heat for Oxy-Acetylene Welding
  • Comparing Acetylene with Other Fuels
  • Reasons for Oxidizing, Carbonizing, and Neutral Flames
  • Welding Structural Steel
  • Benefits of Oxy-Acetylene
  • Limitations of Oxy-Acetylene
  • Fluxes for Oxy-Acetylene Welding

Operate oxy-acetylene portable welding units and manifold system

  • Demonstrate correct setup and shutdown procedures for the portable welding tanks and manifold system
  • Perform oxy-fuel welding practice

Interpret drawing and symbols to accurately layout, prepare and assemble weld joints

  • Interpret lines, symbols and verbiage on project drawing
  • Layout material per drawing specifications
  • Assemble weld project per specification.
  • Participate in shop clean-up

Weld common joints with the with the Oxy-fuel welding process to code quality standards in the flat, horizontal, vertical, and overhead positions

  • Develop a working knowledge of the vocabulary used in the welding industry
  • Use correct terminology
  • Define terms used in the Oxy-fuel process
  • Equipment identification, setup, shut down, and adjustment of equipment to settings called for in the Oxy-fuel welding process
    •   Oxy-fuel hose connections, inspection, and proper use
    •   Filler rod identification and classification, characteristics, and use
  • Describe essential variables of tip size to regulating Oxy-fuel settings on regulators
  • Demonstrate  how to adjust travel speed and amount of heat for thickness of material, and weld bead size
  • Demonstrate correct welding techniques with the Oxy-fuel welding process and torch brazing
    • Starting and stopping
    • Overlapping welds
  • Follow welding procedure

Demonstrate correct welding techniques in the following joints:

  • Flat Position:
    • Bead Plate
    • T-Joint
    • Lap Joint
    • Outside Corner Joint
    • Butt Joint
  • Horizontal Position:
    • Bead Plate
    • T-Joint
    • Lap Joint
    • Out side Corner Joint
  • Vertical Position:
    • T-Joint
    • Lap Joint
    • Butt Joint
    • Outside Corner Joint
  •   Overhead Position:
    •   T-Joint
    • Lap Joint
    • Butt Joint

Demonstrate visual examination principles and practices