Travel speed also affects which aspect of the weld bead?

Travel speed also affects which aspect of the weld bead?

• A. Size and Shape
• B. Penetration
• C. Color
• D. Texture

Answer: (A)

Travel speed determines how much heat is put into the joint per unit length. At the same welding current and voltage, moving the torch faster reduces heat input per inch, so less metal melts ahead of the arc and the bead ends up smaller, narrower, and with a simpler profile. Slower travel increases heat input, producing a larger, wider bead and often greater buildup. The bead’s size and shape are the most direct and visible effects of changing travel speed, which is why that option is the best choice. Color and texture hinge more on cooling rate and surface conditions, while penetration relates to overall heat input but is not the most direct description of the bead’s appearance.

Travel speed determines how much heat is put into the joint per unit length. At the same welding current and voltage, moving the torch faster reduces heat input per inch, so less metal melts ahead of the arc and the bead ends up smaller, narrower, and with a simpler profile. Slower travel increases heat input, producing a larger, wider bead and often greater buildup. The bead’s size and shape are the most direct and visible effects of changing travel speed, which is why that option is the best choice. Color and texture hinge more on cooling rate and surface conditions, while penetration relates to overall heat input but is not the most direct description of the bead’s appearance.