Title: Explain acceptability of welds.
Course: Aviation Maintenance Technology II (20114-II) > Section: Exploring Aircraft Materials and Processes

Explanation should include using the visual, dye-penetrant, eddy-current, or radiographic method and checking for

- uniform width
- even ripples, tapered into base metal
- oxide (should not have formed on the base metal at a distance of more than ½" from the weld)
- burns, pits, cracks, or distortion due to overheating (these should not be present)
- blow holes, porosity, or projecting globules (these should not be present)
- depth of penetration (ensures fusion of base metal and filler rod).

The inspected area should be clean and free of oil, grease, and other coatings that could fill or hide defects.

ACS:

AM.I.E.K13
AM.I.E.K14
AM.I.E.K12

Process/Skill Questions:

- Why is it necessary to inspect welds?
- What are the characteristics of a poor weld?