What is weld bead profile and how is it judged in a visual inspection?

What is weld bead profile and how is it judged in a visual inspection?

• A. The shape and contour of the weld toe-to-toe; should be uniform with a smooth crown and consistent width.
• B. The color of the weld bead.
• C. The time required to complete the weld.
• D. The roughness of the base metal near the weld.

Answer: (B)

Bead profile is the shape and contour of the weld deposit as seen on the surface. When you inspect it visually, you’re looking for a uniform crown and a consistent width from toe to toe, with smooth, gradual transitions at the edges. A good bead sits evenly along the joint, showing uniform ripples and no signs of undercut, excessive convexity, gaps, or craters along the length. Color isn’t the main judge of bead profile; while discoloration can indicate overheating, contamination, or shielding issues, it doesn’t define the geometry of the bead. The geometry—the crown height, toe contour, and uniform width—is what determines the bead profile in a visual inspection.

Bead profile is the shape and contour of the weld deposit as seen on the surface. When you inspect it visually, you’re looking for a uniform crown and a consistent width from toe to toe, with smooth, gradual transitions at the edges. A good bead sits evenly along the joint, showing uniform ripples and no signs of undercut, excessive convexity, gaps, or craters along the length. Color isn’t the main judge of bead profile; while discoloration can indicate overheating, contamination, or shielding issues, it doesn’t define the geometry of the bead. The geometry—the crown height, toe contour, and uniform width—is what determines the bead profile in a visual inspection.