Red Seal Welding Practice Exam

Question: 1 / 400

In CAC-A, what should your travel angle be?

45°

15°

In gas tungsten arc welding (GTAW), also known as tungsten inert gas (TIG) welding, the travel angle is essential for achieving a good weld. For CAC-A, which refers to the Carbon Arc Cutting process with air, the optimal travel angle to maintain is typically around 15 degrees.

This slight angle allows for better control of the arc and improves the heat distribution, which is crucial for melting the base material effectively while preventing excessive melting or distortion. A 15-degree angle facilitates the creation of a narrow arc cone, providing a more focused and efficient heat input, which is especially important in a process where precision is key.

Travel angles greater than this, such as 30 degrees or more, could lead to excessive heat being applied, resulting in a wider weld bead and potential distortion of the workpiece. Therefore, a 15-degree angle is the standard for effective and efficient CAC-A welding.

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60°

30°

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