WELD 1780 Gas Tungsten Arc Welding on Plate

The student will be introduced to the theory of GTAW, machine set-up, and shielding gases used with various applications on mild steel, aluminum, and stainless steel plate in flat, horizontal, vertical-up, and overhead positions. (1 lect. 4 lab)

Credits

3 credits

Major Topics

  • Safety and Health of welders
  • Introduction to Gas Tungsten Arc Welding
  • Preparation for Welding startup, equipment adjustment, and shut-down.
  • Stinger beads and fillet welds made in "out of position" without and with filler metal.
  • The welding characteristics of Carbon Steel.
  • Square groove weld guided bend test.
  • Introduction to Gas Tungsten Arc Welding using pulsed current.
  • Welding Characteristics of Stainless Steel.
  • Visual Inspection test of stainless steel.
  • The effect of equipment adjustments on the welding arc.
  • Welding Characteristics of aluminum.
  • Visual Inspection test aluminum.

Outcomes

In order to successfully complete this course, the student will:

1. Employ safety rules associated with all phases of welding.

2. Develop the general orientation to the method of operation, type of equipment and apply the gas tungsten arc welding process.

3. Operate the gas tungsten arc welding equipment efficiently and safely in the procedure steps for properly setting up, adjusting and shutting down

4. Develop and maintain a consistent technique that will improve their skill with the gas tungsten arc welding torch and filler metal manipulation on mild steel plate and apply it to various joints assigned.

5. Interpret the various types of steel by carbon content, weldability, and welding difficulties.

6. Apply the skills developed to pass the guided bend test and be able to visually inspect for weld quality.

7. Interpret the difference between normal GTAW current and "Pulsed" current in adjustments and applications.

8. Interpret the various types of stainless steel with regards to classification, weldability, and welding difficulties.

9. Apply the standards of acceptability required to pass a visual inspection on stainless steel.

10. Associate the effects on the welds when adjusting the current, applying shielding gases and using electrodes in relation to weld penetration and weld quality.

11. Relate the welding characteristics of aluminum and procedures used to produce quality welds when using the GTAW.

12. Relate the standards of acceptability required to pass a visual inspection on aluminum.

Other Information

Any information placed here must be adhered to by all instructors:

Required Software: WELD IT program Recommended text book: Contact current Instructor for the recommended text material Personal supplies are to be provided by the welding student: 1. Safety glasses whether they are prescription or not. 2. Welding helmet 3. Replacement lens for welding helmet 4. Oxy-fuel cutting goggles or face shield with #5 shade 5. Welding gloves, full-length leathers, or appropriate protective clothing. 6. Appropriate footwear; steel-toe boot preferred or leather shoes. NO TENNIS SHOES 7. Hard hat or other suitable head covering. Tools required and provided by the welding student for this course include the following: 1. Metal tool box 2. 10" crescent wrench 3. Channel lock or plumbers pliers 4. Soap stone or metal marking pencil 5. 10’ or 25’ tape measure 6. Tip cleaner 7. Wise-grip pliers or needle nose pliers 8. Chipping hammer 9. Wire brush 10. Combination square 11. Heavy duty 6" C-clamp