UWLD 262 - Introduction to Gas Metal Arc Welding

1. Describe the health and safety used in arc welding processes.
2. Describe the basic welding terminology used in the GMAW and FCAW arc welding processes.
3. Identify and describe the proper handling and assembly of GMAW and FCAW welding equipment.
4. Demonstrate GMAW and FCAW arc welding techniques for mild steel.
5. Demonstrate welding of fillet and groove welds in flat and horizontal positions.

1. Personal, body, and eye protection
2. Protective clothing
3. Equipment handling safety.
4. Safety features to GMAW and FCAW processes

II. GMAW and FCAW Processes and Equipment

1. Process of operations
2. GMAW and FCAW parameters and variables
3. Power sources
4. Wire feeders
5. Welding guns GMAW and FCAW applications
6. Shielding gases
7. Gas regulators
8. Welding wires

III. Equipment Operation and Welding Techniques

1. Assembly of the GMAW and FCAW equipment
2. Starting the weld bead
3. Metal Inert Gas (MIG) gun angles
4. Oscillating the gun
5. Travel speed.
6. Forehand welding techniques

IV. Welding Currents and Polarities

1. Types of welding currents and their uses
2. Types of polarities in the current and their uses

V. Welding Wires in GMAW and FCAW Processes

1. Types and sizes of welding wire used in GMAW and FCAW processes.
2. Care of the welding wire
3. Selecting the correct welding wire

VI. Shielding Gases

1. Types of shielding gases used for different types of base metal welding
2. Characteristics of the different types of shielding gases

VII. Mild Steel Welding

1. Base metal preparation and identification
2. Welding procedures and position welding techniques