ridges will be present. If a body dent involves a seam, it will be considered a moderate
dent when malposition of the seam is slight.
(3) Severe dent. A severe dent is a defect that could result in failure or
materially reduce the usability of the unit of product for its intended purpose. Severe
dents are classified as major defects. A severe dent has very sharp or deep
commissures with very sharp apexes. Dents involving a seam are severe when seam
malposition is readily noticeable.
b. End Seam Dent (Figure 2-4).
(1) Severe. The end seam is forced inward so that the countersink has
buckled, the body is extensively involved, or the extremes of the dented part of the
flange are reflected at a sharp angle.
(2) Moderate. The end seam is forced inward, but the countersink and body
are not involved, and no sharp ridges are evident.
Figure 2-4. End seam dent.