PARTS OF A WELD

the exposed surface of the weld, bound by the weld toes on the side on which welding was done

(weld) face

the distance from the joint root to the toe of a fillet weld

(weld) leg

the amount of weld metal in excess of that required to fill the joint

(weld) reinforcement

Junction of the base metal and the weld face.

(weld) toe

the shortest distance from the face of a fillet weld to the weld root after welding

actual throat

the metal to be welded or cut

base metal

the minimum distance, minus convexity, between the weld face and the weld root

effective throat

a portion of a weld joint where joint members meet or are closest to each other, In cross section, the joint root may be either a point, a line, or an area

joint root

the distance between joint members at the root of the weld before welding

root opening

The distance from the joint root, perpendicular to the center of the face of the weld, not including reinforcement.

theoretical throat

The area where the filler metal intersects the base metal and extends furthest into the weld joint.

weld root

an assembly whose component parts are formed by welding

weldment