Portland Community College | Portland, Oregon

This is a outcome based course utilizing a lecture/lab format. This course includes classroom discussions, videotapes, and lab demonstrations technical skills.  Course outcomes will include; theoretical concepts, layout, fabrication, welding, oxyfuel cutting, safety and environmental awareness, communication, computations and human relations.

• Function safely in the PCC Welding Shop.
• Demonstrate professional work ethics (Habits)
• Apply math and science concepts to the welding related process
• Operate oxy-acetylene 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 E7024 electrode to code quality standards in the flat, and horizontal position

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.     

Function safely in the PCC Welding Shop

• Understand and practice personal safety by using proper protective gear
• Understand and practice 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
  • Understand and practice fire prevention
• 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

• Measuring with fractions
• Reducing common fractions
• Expressing common fractions in higher terms
• Ability to read a tape measure

Science

• SMAW with E7024 Electrode
• As-Deposited Composition of E7024
• Mechanical Properties of E7024
• Operating Range for E7024
• Fluxes for E7024 Electrode
• Impact Toughness of E7024 Weld Metal
• Arc Stability and Slag Removal
• Arc Length for E7024
• Possibility of Hydrogen-Assisted Cracking with E7024
• Significance of the Volt-Ampere Curve for SMAW with E7024
• Iron Powder Addition to E7024
• Duty Cycle Calculation

Oxy-Acetylene Cutting

• Chemical Reactions in Oxy-Acetylene Cutting Steel and Cast Iron
• Oxy-Acetylene Cutting of Stainless Steel and Titanium

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 E7024 to code quality standards in the flat, horizontal, positions

• Use correct terminology.

  • Define terms used in the SMAW process.

• Equipment identification, setup, shut down, and principles of operation for SMAW.

  • Power source identification and adjustment

  • Welding lead, connections, inspection, and use

  • 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 E7024

  • Starting and stopping

  • Overlapping welds

  • Follow welding procedure

• Demonstrate correct welding techniques in the following joints:

  • Flat Position:

    • Bead Plate

    • T-Joint

    • Lap Joint

  • Horizontal Position:

    • T-Joint

    • Lap Joint

    • Out side Corner Joint

• Demonstrate visual examination principles and practices