Aluminum GMA (MIG) Welding (WCA03)

Course Overview

Previously seen only in high-end vehicles, aluminum is now appearing in a growing number of popular models as vehicles shed weight for greater fuel efficiency. Technicians and shops must be prepared to perform quality, complete and safe aluminum repairs to properly restore these vehicles. Aluminum welding is inherently different from steel welding and can present challenges to technicians who are familiar primarily with steel.

After completing this course, you will have proven your ability to:

  • Properly set up, tune, and maintain a welding machine
  • Explain safety issues involved with aluminum welding
  • Perform proper welding techniques
  • Properly prepare metal surfaces
  • Identify and correct weld defects

A single training event can accommodate multiple technicians.

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Course Content

Welding Capability & Readiness Assessment
Before instruction starts, the instructor will conduct the Welding Capability & Readiness Assessment to determine whether shop infrastructure and equipment conditions are adequate for technicians to properly perform hands-on practice and certification testing.
Students will begin with an overview of course objectives, followed by instruction on how to:
  • Properly set up, tune and maintain aluminum GMA (MIG) welding machine
  • Address safety issues
  • Prepare aluminum surfaces
  • Perform proper welding techniques
  • Identify and correct weld defects
  • Visually inspect and destructively test welds
Hands-on Practice
Students will then have the opportunity to apply their knowledge by making GMA (MIG) plug, fillet, and butt joint with backing welds. Welds are made in both the vertical and overhead positions, and on two types and two thicknesses of aluminum alloys. Students also perform the required visual inspections and destructive tests for each type of welded joint. Instructors monitor and coach students and assess their readiness for the test.
Skills Verification Test
The course concludes with the student taking the hands-on test. All six segments of the test must pass I-CAR standards for the student to receive the certification. Students will be given multiple attempts to perform each weld if necessary. Those who are unable to properly complete all six welds successfully during the event may retake the training and test on another date and pass it to receive the certification.

Training for Your Role

Successful completion of the Aluminum GMA (MIG) Welding satisfies the Knowledge Area training requirement in the Professional Development Program, but it does not award credit hours.

All earned I-CAR Welding Training & Certification designations are valid for five years from the passing date.