Deep drawing creates a part from a single piece of metal. There are no welds, seams, or joints. This makes the part watertight, airtight, and structurally sound under high pressure.
A deep draw press can produce 30 to 60 parts per minute. Once the tooling is paid for, the unit cost drops to pennies. Compare that to a CNC machine taking 15 minutes per part. deep drawn pressings
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. Deep drawing creates a part from a single piece of metal
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. A deep draw press can produce 30 to 60 parts per minute
When you look at a stainless steel kitchen sink, a fuel tank for a car, or the outer casing of a lithium-ion battery, you are looking at a "deep drawn pressing." Despite the name sounding like a niche industrial process, deep drawing is the unsung hero of modern manufacturing.