Welding Defects. The weld defect is removed by grinding and subsequent rewelding. Slag is a vitreous material that occurs as a byproduct of stick welding flux-cored arc welding and submerged arc welding.
In addition to brittleness other common weld defects like distortion cracking and melt-through can compromise the durability of metals including mild steel. The local stresses at the weld repair are intensified during the weld excavation process. An ideal weld or good weld should be such that adequate fusion exists between the filler metal and edge preparation together with good penetration.
The defect may differ from the desired weld bead shape size and intended quality.
Welding defects are the irregularities that are formed due to the wrong welding process or due to inexperienced welders. The defect may differ from the desired weld bead shape size and intended quality. There is a great variety of welding defects. A welding defect is any flaw that compromises the usefulness of a weldment.