Course Details
Course Code:
WELD 102
Calendar Description:
This course is part of a competency based, seven month welding program, Welding Level C program where students will learn the oxy-fuel gas cutting process and its applications.
Date First Offered:
2011-05-01
Hours:
Total Hours: 75
Lecture Hours: 10
Shop Teaching Kitchen: 65
Total Weeks:
2.5
This course is offered online:
No
Pre-Requisites:
Admission into the Welding Level C Program
Non-Course Pre-Requisites:
None
Co-Requisites:
None
Rearticulation Submission:
No
Course Content:
- Oxy-fuel Gas Cutting Process and its Applications
- Oxy-fuel Gas Cutting Equipment
- Freehand and Guided Cuts on Mild Steel Plate, Sheet, and Pipe
- Cuts with Cutting Machine
Learning Outcomes:
Students will be able to describe the oxy-fuel gas cutting process and its application and the oxy-fuel gas cutting equipment. They will understand the potential hazards of oxy-acetylene gases and the importance of following the correct procedures and safety precautions as they assemble, ignite, and adjust an oxy-acetylene cutting unit. Students will also perform cuts with a variety of cutting machines which use oxy-fuel gases, including freehand and guided cuts. Students will be able to set up and operate a variety of cutting machines and produce high quality straight and bevel cuts safely.
Upon successful completion of this course, learners will be able to:
Describe the Oxy-fuel Gas Cutting Process and its Applications:
- Describe the oxy-fuel gas cutting process and the applications of oxy-fuel gas cutting
- Identify the main components of an oxy-fuel station and techniques for difficult-to-cut ferrous alloys
- Identify ferrous and non-ferrous alloys that cannot be cut with oxy-fuel gas
- Identify the thermal effects of distortion and surface hardening
- Identify safety precautions for oxy-fuel gas cutting
Describe Oxy-fuel Gas Cutting Equipment:
- Identify the properties and applications of oxygen and fuel gases used in oxy-fuel cutting
- Describe oxygen, acetylene, and liquid gases, the functions of pressure regulators and single-stage/double-stage regulators
- Describe the various types of cutting torches and their applications, the types of cutting tips and their applications, and the maintenance of cutting tips
- Identify causes and preventive measures for backfires and flashbacks
- Describe oxygen and acetylene manifold systems and their safe operation
- Describe guided cutting attachments and a variety of cutting machines
Assemble, Ignite, Shut Down, and Maintain Oxy-fuel Gas Cutting Equipment:
- Perform minor maintenance of oxyacetylene equipment in order to ensure safer and more efficient operation of equipment
- Perform assembly an oxyacetylene outfit
- Perform testing on an oxyacetylene outfit for leaks
- Identify and select working pressures
- Demonstrate ignite, adjust, and extinguish a one-piece and two-piece combination torch
- Demonstrate installation, ignition, and adjustment of a heating tip
Perform Freehand and Guided Cuts on Mild Steel Plate, Sheet, and Pipe:
- Describe the attributes of a high quality cut and the effects of various factors on cutting
- Describe good cutting techniques
- Identify and select the appropriate cutting tip for the job
- Perform freehand straight and bevel cuts on mild steel plate and sheet
- Pierce holes in mild steel plate
- Perform freehand cuts on structural shapes and on round stock
- Demonstrate washing of nuts off bolts and gouge weldments
- Perform freehand cuts in mild steel pipe
Perform Cuts with Cutting Machine:
- Perform a variety of cutting machines using oxy-fuel gas
- Perform set up and operation of a straight-line cutting machine
- Produce high-quality straight and bevel cuts with a straight-line cutting machine
- Perform set up and operation of a shape-cutting machine and a pipe-beveling machine
- Produce high quality straight and bevel cuts with a pipe-beveling machine
Skills:
Select and use appropriate tools.
Grading System:
Percentage
Passing Grade:
70%
Grading Weight:
Final Exam: 50 %
Assignments: 50 %
Number of Assignments:
20
Percentage of Individual Work:
100
Course Offered in Other Programs:
No
Additional Comments:
Students will sign and adhere to the Trades & Apprenticeship Safety and Attendance Policy.
Supplies:
Students are required to supply the following tools:
- Metal tool pail (max 10" diameter) or small tool box with tote tray
- Clear CSA approved safety glasses
- High top steel-toe CSA approved leather work boots
- Padlock for locker
- 12' metric/imperial tap measure
- Arc welding helmet
- 2 pair welder's gloves
- One-piece oxy-acetylene goggles
- Tri-flint spark lighter
- Tip cleaners
- Small metal protractor
- Welder's leather jacket or cape sleeves
- 100% cotton overalls (bib or full)
- #10R straight jaw vice grip
- 10" crescent wrench
- 1 1/2 lb 24oz fibreglass handle ball peen hammer
- 12" STT metric/imperial combination square
- Centre punch
- 10" slip joint pliers
- 1/2 RD Pipeliner NCH 14" file with handle
- 45/90 degree magnet
Keys to Success:
Attendance, class participation, maintaining a professional attitude, successful study habits, and receiving a minimum of 70% on all practical and theoretical quizzes and tests.
Text Books:
Required - Industry Training Authority, 2010, Module/Line P2 Oxy-Fuel Cutting (Queen's Printer, Victoria, BC). Chapters Covered: All