“Introduction to GMAW” provides a comprehensive overview of the gas metal arc welding process and its equipment where GMAW is a semi-automatic or automatic process that uses a consumable electrode and a shielding gas. GMAW equipment includes a power source, wire electrode, wire feeder, shielding gas, and welding gun. GMAW typically uses a constant voltage power source and direct current electrode positive polarity (DCEP). In GMAW, there are several modes of metal transfer: short circuit, globular, and axial spray. GMAW is one of the most popular arc welding processes. Because it is semi-automatic or automatic, it is also one of the easiest to learn. After taking this class, users will be familiar with GMAW equipment and the various modes of metal transfer. This information provides the foundation necessary to learn how to perform GMAW. A good understanding of GMAW is also helpful when learning about related types of welding such as gas tungsten arc welding (GTAW).
- Describe GMAW
- Distinguish between advantages and disadvantages of GMAW
- Describe common GMAW equipment
- Describe GMAW power sources
- Describe GMAW power circuits
- Describe components of the GMAW gun
- Describe GMAW electrodes
- Explain the AWS classification system for GMAW electrodes
- Describe GMAW wire feeders
- Describe the characteristics and function of shielding gas in GMAW
- Describe the process of GMAW
- Describe the short circuit metal transfer method
- Describe the globular metal transfer method
- Describe the axial spray metal transfer method.
- Recommended for manufacturing personnel, including engineers, technicians and managers, particularly handling welding operations.
Communication, Critical Thinking, Personal Effectiveness, Gas Metal Arc Welding, Equipment, Power Sources/ Curcuits
Method of Delivery
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