1. "As Formed" - This is most common and is formed from a controlled size and shape blank.

2. "Die Trimmed" - This is usually simple die trimming and parts have edges similar to flat stampings.

3. "Hemmed Edge" - This is formed for smoothness and stiffness.

4. "Curled Edge" - This is formed for maximum stiffness and smoothness.

5. "Lance-Formed" - Edges are likely to have more burr than flat stampings.

This technical information has been contributed by
Dayton Rogers
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