Identify the considerations for cutting, removing, and welding various types of steel, aluminum, and other metals.
Determine the correct GMAW (MIG) welder type, electrode/wire type, diameter, and gas to be used in a specific welding situation.
Set up and adjust the GMAW (MIG) welder to "tune" for proper electrode stickout, voltage, polarity, flow rate, and wire-feed speed required for the substrate being welded.
Store, handle, and install high-pressure gas cylinders.
Determine the proper angle of the gun to the joint and direction of gun travel for the type of weld being made.
Protect adjacent panels, glass, vehicle interior, etc. from welding and cutting operations.
Protect computers and other electronic control modules during welding procedures.
Clean and prepare the metal to be welded, assure good metal fit-up, apply weld-through primer if necessary, clamp or tack as required.
Determine the joint type (butt weld with backing, lap, etc.) for weld being made.
Determine the type of weld (continuous, stitch weld, plug, etc.) for each specific welding operation.
Perform the following welds: continuous, plug, butt weld with and without backing, and fillet etc., in the flat, horizontal, vertical, and overhead positions.
Perform visual and destructive tests on each weld type.
Identify the causes of various welding defects; make necessary adjustments.
Identify cause of contact tip burn-back and failure of wire to feed; make necessary adjustments.
Identify cutting process for different substrates and locations; perform cutting operation.
Identify different methods of attaching structural components (squeeze type resistance spot welding (STRSW), riveting, structural adhesive, MIG bronze, etc.).
Proficiency Scale
The student can...
1 Beginning
with help, demonstrates a partial understanding of some of the simpler details and processes (Score 2.0 content) and some of the more complex ideas and processes (Score 3.0 content).
2 Developing
demonstrates no major errors or omissions regarding the simpler details and processes but exhibits major errors or omissions regarding the more complex ideas and processes (Score 3.0 content).
3 Proficient "The Standard."
demonstrates no major errors or omissions regarding any of the information and processes that were end of instruction expectations.
4 Advanced
demonstrates in-depth inferences and applications regarding more complex material that go beyond end of instruction expectations.
Proficiency Scale