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Nov 14, 2024
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2022-2023 College Catalog [ARCHIVED CATALOG]
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WLD 261 - Gas Metal Arc Welding 4 Credits, 6 Contact Hours 2 lecture periods 4 lab periods
Procedures and techniques in Gas Metal Arc Welding (GMAW) and Flux Core Arc Welding (FCAW) processes. Includes health, safety, and environmental practices; welding terminology, GMAW and FCAW processes and equipment. Also includes equipment operation, welding techniques, power source and wire feed types and controls; welding currents and polarities; welding wires in GMAW and FCAW processes; shielding gases; and mild steel and aluminum welding.
Course Learning Outcomes
- Demonstrate all safety protocol.
- Demonstrate mild steel welding.
- Demonstrate aluminum welding.
Outline:
- Health, Safety, and Environmental Practices
- Personal, body, and eye protection
- Protective clothing
- Equipment handling safety
- Safety features to GMAW and FCAW processes
- Occupational Safety and Health Administration (OSHA) regulation
- Welding Terminology
- Dictionary of welding terms
- GMAW and FCAW applications
- GMAW and FCAW Processes and Equipment
- Process of operations
- GMAW and FCAW parameters and variables
- Power sources
- Wire feeders
- Welding guns
- Shielding gases
- Gas regulators
- Welding wires
- Equipment Operation and Welding Techniques
- Assembly of the GMAW and FCAW equipment
- Starting the weld bead
- Metal Inert Gas (MIG) gun angles
- Oscillating the gun
- Travel speed
- Forehand and backhand techniques
- Power Source and Wire Feed Types and Controls
- Types of power sources
- Types of wire feeders
- Manual power source and wire feed controls
- Amperage control
- Voltage control
- Inductance control
- Slope control
- Polarity control
- Wire feed control
- Welding Currents and Polarities
- Types of welding currents and their uses
- Types of polarities in the current and their uses
- Welding Wires in GMAW and FCAW Processes
- Types and sizes of welding wire used in GMAW and FCAW processes
- Care of the welding wire
- Selecting the correct welding wire
- Shielding Gases
- Types of shielding gases used for different types of basemetal welding
- Characteristics of the different types of shielding gases
- Mild Steel Welding
- Basemetal preparation and identification
- Welding procedures and position welding techniques
- Aluminum Welding
- Basemetal preparation and identification
- Welding procedures and position welding techniques
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