Module 2

Oxyfuel Cutting Process - Module Two (29102-15) introduces the trainees to the methods and procedures of the oxyfuel cutting process. Trainees will learn safety procedures, equipment setup, fuel gas types, flow rates, and techniques. Hands-on practice and the completion of cutting-related Performance Tasks complete the learning process.

Objectives

Learning Objective 1

• Describe oxyfuel cutting and identify related safe work practices.

• 1. Describe basic oxyfuel cutting.

  2. Identify safe work practices related to oxyfuel cutting.

Learning Objective 2

• Identify and describe oxyfuel cutting equipment and consumables.

• 1. Identify and describe various gases and cylinders used for oxyfuel cutting.

  2. Identify and describe hoses and various types of regulators.

  3. Identify and describe cutting torches and tips.

  4. Identify and describe other miscellaneous oxyfuel cutting accessories.

  5. Identify and describe specialized cutting equipment.

Learning Objective 3

• Explain how to setup, light, and shut down oxyfuel equipment.

• 1. Explain how to properly prepare a torch set for operation.

  2. Explain how to leak test oxyfuel equipment.

  3. Explain how to light the torch and adjust for the proper flame.

  4. Explain how to properly shut down oxyfuel cutting equipment

Learning Objective 4

• Explain how to perform various oxyfuel cutting procedures.

• 1. Identify the appearance of both good and inferior cuts and their causes.

  2. Explain how to cut both thick and thin steel.

  3. Explain how to bevel, wash, and gouge.

  4. Explain how to make straight and bevel cuts with portable oxyfuel cutting machines.

Performance Tasks Performance

Task 1 (Learning Objective 3)

• Set up oxyfuel cutting equipment.

Performance Task 2 (Learning Objective 3)

• Light and adjust an oxyfuel torch.

Performance Task 3 (Learning Objective 3)

• Shut down oxyfuel cutting equipment.

Performance Task 4 (Learning Objective 3)

• Disassemble oxyfuel cutting equipment.

Performance Task 5 (Learning Objective 3)

• Change empty gas cylinders.

Performance Task 6 (Learning Objective 4)

• Cut shapes from various thicknesses of steel, emphasizing: – Straight line cutting – Square shape cutting – Piercing – Beveling – Cutting slot

Performance Task 7 (Learning Objective 4)

• Perform washing.

Performance Task 8 (Learning Objective 4)

• Perform gouging.

Performance Task 9 (Learning Objective 4)

• Use a track burner to cut straight lines and bevels.

Additional Resources:

This module presents thorough resources for task training. The following resource material is suggested for further study:

ANSI Z49.1, Safety in Welding, Cutting, and Allied Processes. Miami, FL: American Welding Society.

Uniweld Products, Inc. Numerous videos are available at uniweld.com/en/uniweld-videos. Last accessed: November 30, 2014.

The Harris Products Group, a division of Lincoln Electric. Numerous videos are available at http://www. harrisproductsgroup.com/en/Expert-Advice/videos.aspx. Last accessed: November 30, 2014.

“Victor Safety Summary” Victor Technologies, last accessed November 26, 2014 http://www.youtube.com

Harris Products Group Expert-Advice

How to Properly Light, Adjust and Shut Down an Oxy–Acetylene Torch

Alternate Fuel / Propane Cutting Torch

Victor Torch Safety

Victor Oxy-fuel Safety

Cutting Torch - Tips for Oxygen Acetylene Cutting