PCC/ CCOG / WLD

Course Content and Outcome Guide for WLD 132

Course Number:
WLD 132
Course Title:
Gas Metal Arc Welding-Pulse
Credit Hours:
3
Lecture Hours:
0
Lecture/Lab Hours:
60
Lab Hours:
0
Special Fee:
 

Course Description

Develops knowledge and manipulative skills using the Gas Metal Arc Welding - Pulse transfer process on common mild steel and aluminum joints in all positions. Covers safety, users, nomenclature, equipment operation and set up and shut down procedures. Audit available.

Addendum to Course Description

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

Intended Outcomes for the course

  • Function safely in the PCC Welding Laboratory
  • Demonstrate professional work ethics(habits)
  • Apply math and science concepts related to GMAW-P
  • Understand the principles of the Gas Metal Arc Welding - Pulse process

    • Terminology
    • Equipment
    • Operation variables
    • Welding specifications
  • Weld common joints in all positions on mild steel  and aluminum using the GMAW-P transfer.

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 task performance, safe work habits and work relations.

Course Content (Themes, Concepts, Issues and Skills)

COURSE CONTENT:

Function safely in the PCC Welding Laboratory

  • Understand and practice personal safety by using proper protective gear
  • Understand and practice power tool safety
  • Understand and practice equipment safety
  • Understand and maintain a safe work area
  • Understand and practice fire prevention
  • Access and explain the importance of Material Safety Data Sheets (MSDS)
Demonstrate professional work ethics
  • Track training hours on time card
  • Perform projects in accordance to specifications and procedures
  • Follow directions in a positive manner
  • Manage time productively
  • Respect equipment and others
  • Demonstrate skill in problem solving and decision making

Apply math and science concepts related to GMAW-P

  • Demonstrate the ability to solve formulas
  • Apply math order of operation rules
  • Explain the purpose of Pulsing with GMAW
  • Identify the types of shielding gases used for Pulsed GMAW
  • Explain plasma formation in the Arc
  • Explain the use of Diatomic and Tri-atomic Gases with Argon or Helium
  • Explain stabilizing the Arc for GMAW of steel
  • Explain when to use Argon-Helium vs. Ar-CO2 vs. Ar-O2 shielding gases
  • Identify the oxidation potential of Argon rich gas mixtures
  • Compare pulsed GMAW of Steel vs. Aluminum
  • Explain synergic system power sources and waveform control
  • Understand the principles of GMAW-P transfer.

    • Terminology
    • Variables
    • Equipment
    • Shielding gas
    • Welding specifications

Interpret drawing and symbols to accurately layout, prepare and assemble weld joints

  • Interpret lines, symbols and verbiage on project drawing
  • Layout material per drawing specification
  • Use the oxy-fuel cutting to cut material to specified dimensions
  • Grind metal to meet specifications
  • Assemble weld project per specification

Weld common joints in all positions using the GMAW-Pulse transfer on mild steel.

  • Horizontal position

    • T - Joint
    • Lap Joint
  • Vertical position

    • T - Joint
    • Lap Joint
  • Overhead position

    • T - Joint
    • Lap Joint

Weld common joints to Code Quality using GMAW €“ Pulse transfer on aluminum.

  • Horizontal position

    • T - Joint
    • Lap Joint
  •   Vertical position

    • T - Joint
    • Lap Joint
  •   Overhead position

    • T - Joint
    • Lap Joint