In my experience as a welding inspector, the most prevalent defect I encounter is porosity. It’s a tricky issue, often caused by contaminants in the base material or improper shielding. Have you all noticed similar trends, or do you see other defects more frequently in your work?
Porosity really is like that stubborn stain on your favorite shirt — it just won’t go away! I’ve seen lack of preheat be a common culprit too. Have you ever tried adjusting your settings to see if it helps?