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Jun 16, 2015 - So below we'll learn about the 7 most common welding defects, their types, Here you can also check out our guide on MIG welding defects troubleshooting. Aug 19, 2014 - TIG and MIG weld- ing are the processes most often used for aluminum. To master code welding, you should also get on a first-name basis with the defects that cracks, and hot cracks. However, a surface irregularity or weld discontinuity is not a rejectable defect when it is within the permissible range of extent according The development of the most important welding defects is explained in the following paragraphs. Lack of fusion is defined as unfused area between weld metal Welding Defects: Types, Causes, and Remedies (With PDF & QUIZZES). Written By: Amrit Kumar | Updated On: March 30, 2020. Reading Time: 8 minutes. Oct 2, 2016 -Nov 10, 2019 -