Course Number: 118
The Oxyfuel Operations textbook covers the welding of ferrous and nonferrous metals. It describes oxygen cutting as well as brazing, soldering, and surfacing techniques.
Recommended Contact Hours – 8
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Table of Contents
Chapter 1: Welding Ferrous Metals
Topics: Fusion welding; Fluxes; Flame characteristics; Temperature control; Welding common mild steels, stainless steel, cast iron, and wrought iron
- Explain how oxyfuel welding joins metals and how it differs from arc welding.
- Explain how braze welding and torch brazing are different from oxyfuel welding and from each other.
- Discuss the purposes for using flux and characteristics that make a flux suitable for an application.
- Compare the appearance and general uses of the carburizing flame, neutral flame, and oxidizing flame.
- Explain why preheating and postheating are used.
- List important considerations in welding common mild steels, stainless steel, and cast and wrought iron.
Chapter 2: Welding Nonferrous Metals
Topics: Joint preparation; Welding aluminum, copper, brass, bronze, lead, nickel, and magnesium
- Discuss characteristics of aluminum that are important in welding.
- Explain how to use aluminum alloy designations.
- Describe procedures used in aluminum joint preparation and in aluminum welding.
- Discuss characteristics of copper and copper alloys that are important in welding.
- Discuss procedures for welding copper, brass, and bronze.
- Discuss procedures for welding lead, nickel, and magnesium.
- Summarize general standard procedures for making optimum welds.
Chapter 3: Oxygen Cutting
Topics: Oxygen cutting process, torch, and tips; Cutting safety; Cutting bevels; Piercing holes; Cutting circles; Removing rivets; Gouging; Scarfing
- Explain the similarities and differences between oxyfuel cutting and oxyfuel welding.
- Describe the equipment and safety precautions necessary for torch cutting and list standard steps in the torch cutting operation.
- Describe special equipment or methods used in cutting bevels, piercing holes, cutting circles, and cutting away rivets.
- Explain why gouging, scarfing, and washing are used.
- Explain methods used on metals that are otherwise difficult to cut.
Chapter 4: Brazing and Soldering
Topics: Filler alloys and fluxes; Brazing and braze welding cast, malleable iron, aluminum, and steel; Safety; Soldering; Kinds of solder; Soldering tools
- Compare and contrast brazing, braze welding, and oxyfuel fusion welding.
- Describe the materials and procedures used in brazing and braze welding.
- Explain important special considerations in braze welding cast and malleable iron, brazing aluminum, and brazing stainless steel.
- List the safety precautions necessary for brazing and braze welding operations.
- Explain how soldering differs from brazing and describe the materials and procedures used in soldering.
Chapter 5: Surfacing Techniques
Topics: Thermal spraying; Hard facing; Flame spraying; Surfacing materials; Preparation; Safety
- Define hard face welding and thermal spraying as used for surfacing purposes and discuss general uses of each.
- Discuss advantages and disadvantages of detonation-gun, plasma, and electric arc thermal spraying and explain how each is done.
- Describe the processes of torch hard facing and flame spraying.
- Name several common surfacing materials and discuss one or more characteristics of each.
- List the steps, including those for surface preparation, in repairing a shaft by means of thermal spraying.
- Discuss the safety precautions necessary to prevent or minimize hazards from surfacing processes.
Add Chapters to Your Custom Book
- Chapter 1: Welding Ferrous Metals
- Chapter 2: Welding Nonferrous Metals
- Chapter 3: Oxygen Cutting
- Chapter 4: Brazing and Soldering
- Chapter 5: Surfacing Techniques
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