Portland Community College | Portland, Oregon

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.

• Function safely in the PCC Welding 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

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 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.

  • 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 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

  • 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 E7018

  • Starting and stopping

  • Overlapping welds

  • 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