Unit Originally Created By:
Karen Dalton-Wemp
Oxy-fuel Cutting and Welding
Part of Course: Intro to Ag Mechanics Model
Unit Overview / Details
This unit contains lessons on oxy-fuel cutting processes; setting up, adjusting, shutting down and maintaining an oxy-fuel system; flame cutting; fusing welding; and repair skills such as brazing and hard surfacing.
Instructional Hours
- Classroom
- 20 Hours
Content / Concepts
- The role of heat and oxidation in the cutting process
- Proper set up, adjusting, shutting down and maintaining an oxy-fuel system
- Flame cutting metal with an oxy-fuel cutting torch
- Fusion welding mild steel with and without filler rod by using oxy-fuel equipment
- Basic repair skills techniques such as brazing or hard surfacing
CTE Standards
- California Career and Technical Education Standards: 23
- California Academic Content Standards: Reinforced: 1
- All Standards
- Full Details
Lessons in this Unit
This lesson exposes the students to Oxy-fuel Brazing and upon completion of this this lesson, the students will be able to use the oxy-acetylene equipment to braze weld a tee joint in the flat position with mild steel.
- Instructional Time
- 2 Class Periods
- Teacher Demonstrations
- 30 Minutes
- Lab Practical / Assignment
- 3 Class Periods
Upon the completion of this lesson, the students will know how to properly set up, light, adjust, shut down and maintain an oxy-fuel system safely and in the proper sequence .
- Lecture
- 1 Class Period
- Instructor Demonstrations
- 20 Minutes
- Lab Practical / Assignment
- 2 Class Periods
Upon the completion of this lesson, the student will know how to:
1. Fusion-weld mild steel with and without filler rod by using the oxy-fuel system.
2. Set the Oxy-acetylene torch to a proper neutral flame.
3. Identify the three types of flames produced from an oxy-acetylene outfit (carburizing, oxidizing and neutral)
- Instructional Time
- 2 Class Periods
- Lab Practical / Assignments
- 5 Class Periods
- Teacher Demonstrations
- 30 - 45 Minutes
