Welding Defects Ppt. Weld defects may occur on the outside surface either within the weld. Even if irregularities are very minimal but if the shape size and quality of the weld are way different than what is expected it is also called welding defects.
Benton Florence-Darlington Technical College UNDERCUT POROSITY INCOMPLETE FUSION OVERLAP. Influences of electrode force welding current as well as welding time on welding defects occurrence were discussed. Welding Defects Analysis Documents.
An ideal weld or good weld should be such that adequate fusion exists between the filler metal and edge preparation together with good penetration.
Sue Benton Last modified by. Influences of electrode force welding current as well as welding time on welding defects occurrence were discussed. Welding defects Prevention of lack of fusion Use correct welding technique Welding parameters Welding speed MIG gun angle and stick out Use correct recommended types and sizes of welding grooves Use correct welding power Use correct arc length Use correct groove angles and openings Change position of earth cable to the better place in work. Welding cracks can be present at the surface inside of the weld material or at the heat affected zones.