Welding A Metal Joint. Welds are represented in two colours to differentiate between those that are carried out in-situ and those that are factory welds. Joint preparation and alignment shall also to be checked prior to welding.
A welding joint is referred to an arrangement or configuration of two metal plates that will be fit together. The specifications for bevel angle groove angle and root opening for a joint are based on the welding procedure the base metal thickness and the type of welding joint used. These are a fillet type of weld and can be made to one or both sides of the joint.
Gas welding usually requires a larger groove angle than arc welding.
This weld is a type of joint that comes together at right angles between two metal parts to form an L. A lap joint is used when two or more materials become overlapped on top of one another. Drawings of those joints or groups of joints in which it is especially impor-tant that the welding sequence and technique be carefully controlled to minimize shrinkage stresses and distortion shall be so noted. If preheat is applicable then the preheat temperature shall be confirmed before starting the weld.