Which groove configuration combines a bevel with a flare for a round-bar to plate joint?

Which groove configuration combines a bevel with a flare for a round-bar to plate joint?

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

Answer: (C)

When joining a round bar to a plate, you want a groove that gives good access for welding around the curved surface and a solid root weld. A bevel on the plate edge provides that tapered entry for the weld metal, making it easier to achieve proper root fusion. Adding a flare at the root increases the opening, which helps the weld wrap around the round bar and improves penetration and fusion at the root. So, the configuration that combines a bevel with a flare is a flare bevel groove weld. This setup gives the necessary bevel geometry plus the expanded root opening to effectively weld round-bar to plate joints. Other options either add more than one bevel or use a V-type geometry without the flare, which doesn’t supply the same enhanced access and root opening around the round bar.

When joining a round bar to a plate, you want a groove that gives good access for welding around the curved surface and a solid root weld. A bevel on the plate edge provides that tapered entry for the weld metal, making it easier to achieve proper root fusion. Adding a flare at the root increases the opening, which helps the weld wrap around the round bar and improves penetration and fusion at the root.

So, the configuration that combines a bevel with a flare is a flare bevel groove weld. This setup gives the necessary bevel geometry plus the expanded root opening to effectively weld round-bar to plate joints.

Other options either add more than one bevel or use a V-type geometry without the flare, which doesn’t supply the same enhanced access and root opening around the round bar.