Weld deposited in a groove between workpieces, named by its shape: square, single-V, double-V, bevel, J or U. Groove welds on butt, corner and T-joints can be complete or partial joint penetration. Geometry is set by bevel angle, root opening and root face, which appear in the WPS and on the welding symbol.
Print calls a single-V groove weld on the splice, 45 included, quarter-inch opening on a backing bar.
Also heard as
- butt weld
Do not mix it up with
- Fillet weld: A fillet weld sits in the corner between surfaces with no prepared groove, while a groove weld fills a prepared opening between members.
Related terms
Bevel
An angled edge prepared on a plate or pipe end so a groove weld can reach the root.
Root opening
The gap between members at the root of a joint, set during fit-up before welding.
Land
Shop word for the flat root face left at the bottom of a bevel, called the root face in codes.
CJP
Complete joint penetration: a groove weld that fuses through the full thickness of the joint.
Fillet weld
Weld with a triangular profile laid in the corner where two members meet, the usual weld on T, lap and corner joints.