CCOG for WLD 112 archive revision 201403
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- Effective Term:
- Summer 2014 through Winter 2016
- Course Number:
- WLD 112
- Course Title:
- Shielded Metal Arc Welding: Mild Steel I (E7018)
- Credit Hours:
- 4
- Lecture Hours:
- 0
- Lecture/Lab Hours:
- 80
- Lab Hours:
- 0
Course Description
Addendum to Course Description
This is an outcome-based course utilizing a lecture/lab format. This course includes classroom discussions, videotapes, and lab demonstrations covering technical skills. Course outcomes will include; theoretical concepts, layout, fabrication, welding, oxyfuel cutting, safety and environmental awareness, communication, computations and human relations.
Intended Outcomes for the course
- Function safely in the ±¬ÁÏÍøWelding Shop.
- Demonstrate professional work ethics (Habits)
- Operate oxyfuel portable and track cutting systems in accordance with industry standards
- Interpret drawing and symbols to accurately layout a project; prepare and assemble to specified tolerances; and weld joints in accordance to AWS D1.1.
- Weld common joints with the E7018 electrode to code quality standards in the flat, horizontal, and Vertical positions
Outcome Assessment Strategies
The student will be assessed on his/her ability to demonstrate the development of course outcomes. The methods of assessment may include one or more of the following: oral or written examinations, quizzes, written assignments, visual inspection welding tests, safe work habits, task performance and work relations.
Course Content (Themes, Concepts, Issues and Skills)
Function safely in the ±¬ÁÏÍøWelding Shop.
- Understand and practice personal safety by using proper protective gear.
- Understand and practice hand held tool as well as power tool safety.
- Understand and practice equipment safety for welding and oxy fuel cutting systems.
- Understand and maintain a safe work area.
-
Recognize and report dangerous electrical and air/gas hose connections.
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Understand and practice fire prevention.
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- Access and explain the importance Material Safety Data Sheets (MSDS).
Demonstrate professional work ethics (Habits)
- Track training hours on time card
- Perform projects in accordance to specifications and procedures
- Follow directions in a positive manner
- Manage time productively
- Respects equipment and others
- Demonstrate skill in problem solving and decision making
Apply math and science concepts to the welding related process
Math on Metal
- Tooling around on your TI-30xa calculator
- Operating the fraction key on TI-30xa
- Working with fraction key
- Adding subtracting fractions
- Adding and subtracting fractions and mixed numbers
Science on Metal
- Characteristics of E7018 Low-Hydrogen Electrodes compared to E7010
- Why “Low-Hydrogen “ prevents Cracking in Welds
- Advantages of E7018 Electrode for SMAW
- Disadvantages of E7018 Electrodes for SMAW
- Mechanical Properties of Weld Metal deposited by SMAW with E7018
- Codes Requiring E7018 Low-Hydrogen Electrodes
- Hydrogen Designators by AWS
- Flux Composition of E7018 Electrode
- Alloy Variations of E7018 Electrode
- Iron Powder in E7018 Electrode
- Baking of E7018 Electrodes
- Arc Length and Arc Voltage
- Arc Starting
Operate oxy-acetylene portable and track cutting systems in accordance with industry standards
- Demonstrate correct setup and shutdown procedures for the hand cutting and track-cutting systems Perform oxy fuel cutting with guided practice
Interpret drawing and symbols to accurately layout, prepare and assemble weld joints
- Interpret lines, symbols and verbiage on project drawing
- Layout material per drawing specifications
- Use the oxyfuel cutting process to cut material to specified dimensions
- Grind material to meet specifications
- Assemble weld project per specification
Weld common joints with the E7018 to code quality standards in the flat, horizontal, and
Vertical positions
- Use correct terminology
-
Define terms used in the SMAW process
-
- Equipment identification, setup, shut down, and principles of operation for SMAW
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Power source identification and adjustment
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Welding lead, connections, inspection, and use
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Electrode identification, characteristics, and use
-
- Know essential variables of SMAW by demonstrating the effects of the following variables: current, travel speed, electrode angle and arc length
- Demonstrate correct welding techniques with the E7018
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Starting and stopping
-
Overlapping welds
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Follow welding procedure
-
-
Demonstrate correct welding techniques in the following joints:
-
Flat Position:
- Bead Plate
- T-Joint
-
Horizontal Position:
- T-Joint
- Lap Joint
- Out side Corner Joint
- Groove Joint
-
Vertical Position:
- T-Joint
- Lap Joint
- Single bevel back gouge
-
- Demonstrate visual examination principles and practices
DEMONSTRATE COMPETENCIES WITH AIR CARBON-ARC CUTTING (CAC-A)
-
Demonstrate correct setup and shutdown procedures
- Adjust current and air pressure for size of electrode being used
- Demonstrate the effects of the following variables: electrode angle, amperage setting, air pressure, and travel speed.
- Demonstrate correct CAC-A gouging techniques on plate steel in the flat, horizontal, and vertical positions
- Demonstrate visual examination principles and practices