"Introduction to GTAW” defines gas tungsten arc welding (GTAW), describes the tools used in GTAW, and discusses the various factors that should be considered when using GTAW. GTAW, or TIG welding, is a precise welding process that uses a nonconsumable tungsten electrode and inert shielding gas. GTAW can be used on a wide variety of metals, and can be performed manually or with the use of semi-automated or totally automated systems. GTAW gives the welder increased control over the weld, which allows for the fabrication of stronger and higher quality welds. The process can be complex and requires practice to master, but the improved weld quality is vital to certain applications. By the end of this class, users will be able to define GTAW, identify the tools used in GTAW, and describe the various GTAW processes and applications.
- Define GTAW
- Contrast the advantages and disadvantages of GTAW
- Describe GTAW equipment
- Describe the proper operation of GTAW torches
- Describe the types of GTAW torches
- Identify GTAW torch components
- Describe the types of electrodes used in GTAW processes
- Describe the characteristics of GTAW electrodes
- Describe GTAW safety procedures
- Describe the different types of shielding gases used for GTAW applications
- Describe the types of current required for GTAW processes
- Describe amperage as it relates to GTAW processes
- Describe voltage as it relates to GTAW processes
- Describe how to prepare electrodes for GTAW operations using balling
- Describe how to prepare electrodes for GTAW operations using grinding
- Describe how to prepare joints for GTAW processes
- Describe considerations welders should make prior to welding
- List the steps of GTAW operation
- Define GTAW-P.
- Recommended for manufacturing personnel, including engineers, technicians and managers, particularly handling welding operations.
New Applicants, Operations team, 1st level supervisor
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