| A | B |
|---|
| Axis of Weld | An imaginary line through the center of a weld. |
| Backfire | Gases exploding in torch tip |
| Backgouging | The removal of weld metal from the oposite side of a weld joint |
| Backhand Welding | Dragging; welding torch is directed opposite of direction of welding |
| Base Metal | The metal to be welded |
| Bevel | An angular type of edge preparation |
| Brazability | The capacity of a metal to be brazed |
| Braze | A welding process of capillary attraction below 842 Deg. F. |
| Buttering | Surfacing a trasition metal on the groove face to join dissimilar metals. |
| Complete fusion | fuson which has occured over the entire base metal surface |
| Complete Penetration | joint penetration in which the weld metal completely penetrates the groove |
| concavity | recessed face of a weld |
| convexity | reinforced weld face |
| crater | a depression at the termination of a weld bead |
| cutting tip | part of an oxygen cutting torch |
