As the metal is bent and stretched, it undergoes "work hardening." The walls of a deep drawn part become stronger than the original sheet metal. You get a part that is lightweight but incredibly rigid.
Looking for a supplier? Always ask potential vendors for their "drawability ratio" (blank diameter / punch diameter). A ratio above 2.5 usually requires multiple draws.
As the metal is bent and stretched, it undergoes "work hardening." The walls of a deep drawn part become stronger than the original sheet metal. You get a part that is lightweight but incredibly rigid.
Looking for a supplier? Always ask potential vendors for their "drawability ratio" (blank diameter / punch diameter). A ratio above 2.5 usually requires multiple draws.
