Course

31442312 Oxy Fuel Welding and Thermal Cutting
Course Information
Description
Perform manual and semi-automatic cutting and gouging using Oxy-Fuel and Plasma Arc Cutting processes. Course covers Oxy-Fuel Welding, braze welding, and soldering. Oxy-Fuel and Plasma Arc Cutting safety, Oxy-Fuel Welding safety, and proper handling of cylinders is addressed. Applications will be to English and Metric dimensions.
Total Credits
2
Course Competencies
  1. Identify Oxyfuel gas welding equipment and supplies
    Assessment Strategies
    Written Test
    Criteria
    Identify various components on an Oxyfuel gas welding station
    Cite the maximum safe working pressure used for acetylene gas
    List all safety equipment that should be worn and used when Oxyfuel gas welding
    Interpret the letters and numbers used in the American Welding Society (AWS) code for describing an Oxyfuel gas welding rod
    Complete a list of equipment needed for oxyacetylene welding
    Explain safety rules for the oxyacetylene workplace
    Explain required eye protection for oxyacetylene welding
    Differentiate between welding hoses and their characteristics
    Describe parts of a welding torch
    Describe welding tips and their uses
    Solve problems about basic safety rules for oxyacetylene cylinders and gases
    Describe effective welding tip selection
    Explain filler rod selection, handling and safety
    Identify welding positions

  2. Demonstrate Oxyfuel gas welding procedures and performance
    Assessment Strategies
    Skill Demonstration
    Criteria
    Light, adjust, and shut down an oxyacetylene welding torch in compliance with safety standards
    Lay beads on flat plate with no filler rod
    Lay beads on flat plate with filler rod
    Weld an outside corner joint in the flat position.
    You complete the welds meeting AWS standards
    Demonstrate the safe storage, handling, and movement of oxygen, acetylene, and other fuel gas cylinders
    Correctly and safety assemble an oxyacetylene welding station
    Test all components of the oxyacetylene welding station for leaks
    Produce acceptable welds using the Oxyfuel gas welding process
    Start and shut-down the oxyacetylene welding station
    Select the correct tip size, working pressures, and welding procedures to use for the various thicknesses of mild steel in various positions
    Adjust a neutral flame and other types of welding flames
    Identify good and defective welds
    Complete a chart of oxyacetylene flame characteristics and uses
    Implement guidelines for flame adjustment
    Describe characteristics and causes of backfire and flashback
    Implement guidelines for using the backhand technique
    Implement guidelines for using the forehand technique
    Arrange in order the steps in setting up cylinders and regulators
    Demonstrate the steps in purging oxygen and fuel gas regulators
    Select correct procedures for final steps in setting up oxy-fuel equipment

  3. Clean a cutting tip
    Assessment Strategies
    Written Test, Skill Demonstration
    Criteria
    Identify Oxyfuel gas cutting equipment, supplies, and components of gas cutting station
    Cite the maximum safe working pressure used for acetylene gas
    Describe advantages of oxyacetylene cutting and cutting tip design
    Implement guidelines for cutting tip selection and cleaning cutting tips
    Match tip cleaning tools with their uses
    Implement rules for tip use
    Implement guidelines for metal preparation for oxyacetylene cutting
    Implement safety requirements for oxyacetylene cutting, including eye protection
    Describe characteristics of manifold systems

  4. Produce cuts as per prints using the Oxyfuel gas cutting process
    Assessment Strategies
    Skill Demonstration
    Criteria
    Set up, adjust cutting flame, and shut down oxyacetylene cutting equipment
    Create 90-degree cuts and restarts a cut on mild steel
    Create a flame-beveled cut on mild steel plate
    Lay out a pattern on mild steel plate and cut the pattern to specifications
    Sets up and cut a 30-degree bevel with a track-type torch
    You complete the cuts meeting AWS standards
    Describe the function of each component of an Oxyfuel gas cutting station
    Correctly and safely assemble an Oxyfuel gas cutting station with no leaks
    Correctly and safely test the complete cutting station for leaks
    Describe the difference between a positive-pressure and injector-type cutting torch
    Select the correct cutting tip and working pressures for cutting a particular thickness of steel
    Distinguish between a well-cut surface and a poorly-cut surface and adjust where necessary to perform a good cut
    Describe the gouging process and state when it is used
    Demonstrate safety equipment that should be worn and used when Oxyfuel gas cutting in various positions
    Identify part of an oxyacetylene cutting torch
    Arrange in order the steps for properly starting a cut
    Complete statements about techniques for restarting a cut
    Demonstrate techniques for cutting straight lines
    Demonstrate techniques for controlling kerf and drag
    Describe causes for characteristics of good and poor cuts