What type of weld joint is used in joining two solid round bars, filled flush on both sides down their length?

What type of weld joint is used in joining two solid round bars, filled flush on both sides down their length?

• A. A flare V-groove weld.
• B. A double bevel groove weld.
• C. A flare bevel groove weld.
• D. A double flare V-groove weld.

Answer: (D)

When two solid round bars are joined along their length, the joint needs access from both sides to fill and grind flush along the entire seam. A V-groove provides a widened root opening that promotes deep penetration, and adding a flare to the bevels further enlarges the root opening to ease welding and improve root fill. Using this configuration on both bars creates a double flare V-groove, meaning two opposing V-shaped grooves with flared openings. This arrangement allows weld metal to be deposited from both sides so the joint fills completely and the surface ends up flush along the length of the bars. Other groove options don’t offer the same symmetric access or root geometry needed to achieve full fill and flush surfaces on both sides for this type of rounded, longitudinal joint.

When two solid round bars are joined along their length, the joint needs access from both sides to fill and grind flush along the entire seam. A V-groove provides a widened root opening that promotes deep penetration, and adding a flare to the bevels further enlarges the root opening to ease welding and improve root fill. Using this configuration on both bars creates a double flare V-groove, meaning two opposing V-shaped grooves with flared openings. This arrangement allows weld metal to be deposited from both sides so the joint fills completely and the surface ends up flush along the length of the bars.

Other groove options don’t offer the same symmetric access or root geometry needed to achieve full fill and flush surfaces on both sides for this type of rounded, longitudinal joint.