ABSTRACT

Compression operations, such as coining and extruding, are more like bulk deformation operations, although at least one author (1) considers them in the sheet metal category.

13.2 DEFECTS IN SHEET METAL PRODUCTS There are several different types of defects that may occur in sheet metal products. Some of the more common defects (2) follow:

1. Orange peel: The outside surface becomes grainy. This can often be corrected by using a material of smaller grain size.