0.3mm Passivated SS Deep Drawn Metal Stamping Parts

Passivated stainless steel deep drawn metal stamping parts

Deep drawing process

Deep-drawing die refers to the process of forming a metal sheet into a cavity under compression and stretching conditions to produce a closed bottom, round or irregular shaped cup or cylinder. It should not be confused with stretch forming. In fact, when the material is dragged onto the mold radius and pressed down into the mold, the material is actually forced into a plastic state. The compression process is completed under calculated and strictly controlled conditions, including blank clamping pressure, punch and die radius, punch speed and lubrication.

The end result is a hollow container, which can be cylindrical or square/rectangular in nature. The size of deep-drawn products varies from very shallow ones requiring one drawing operation to very deep ones requiring multiple drawing and re-drawing operations. Deep-drawn parts have a wide range of uses, and can be used in various industries such as electronics, automobiles, refrigeration, plumbing and lighting. The deep-drawn items include component shells, industrial tanks, pressure vessels and fire protection devices. The deeper "everyday" items include electrical parts, containers, kitchen sinks and fire extinguishers.

Deep drawing metal stamping parameters

Advantage

For products that require a waterproof or airtight shell (no joints), high strength and light weight, deep drawing stamping is the best choice. Generally, this is the most effective way to form products with unconventional or difficult geometries.

In terms of production logistics, deep drawing stamping has many advantages:

Growth rate. The stretching speed is only limited by the required contact speed of the material. If multiple stretches are needed to produce the final stretch, it can be performed at the same time at the transfer or progressive die station to optimize the cycle time. If you have a large demand and want to reduce costs, then these fast cycle times are an effective method.

cut costs. In addition to the productivity savings mentioned above, the cost of tools for deep drawing is also lower, usually only a set of very durable and reproducible simple tool steel or cemented carbide dies, thereby reducing the need for retooling.

Maintain tolerances. The deep drawing process is extremely repeatable and once set up, thousands of parts can be produced within strict tolerances.

Rugged parts. Unlike casting or machining, rolled metal has a long and cohesive grain structure. Due to the nature of the deep drawing process, the structure flows uninterrupted throughout the deep drawing part, resulting in a very strong finished product.
The diversity of metals. Various metals can be deep drawn, providing many manufacturing options. The most common metals include mild steel, stainless steel, aluminum, copper and brass. An experienced die should be able to help select the best material or alloy for your application.