Deep draw pressing is a fabrication process that makes seamless metal parts. Manufacturing parts that were created traditionally through different processes like assembly, casting, or turning has different advantages to both the designer and production expert including:
Only a few materials are required for deep draw presses thus lessening material waste and the cost of the manufacturing process.
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The process of deep drawing can manufacture components with complex designs, which is often not possible using other traditional fabrication techniques without the aid of expensive secondary processes.
The quality of finished components is better than other methods and demonstrates better results in producing repeated batches.
Applications
These products often vary from small to large components and often with varying shapes such as square, cylindrical and rectangular. This method offers better flexibility.
Some of the pressing components can be found in the household. These items benefit from the cost and design of this process and it includes –
· Asthma inhalers
· Batteries
· Lipstick tubes/cosmetic containers
· Metal ballpoint pen refills
· Metal pen lids
· Plumbing and heating fittings
· Widgets in beer cans
In other words, all items that have metal tubing incorporated in them are usually items that have been pressed, which are widely used in many industries.
Materials
A lot of metals are used for this method including stainless steel, cold-rolled steel, aluminum, copper, and brass. The process requires that the metal used is ductile allowing the components to be manufactured without placing unnecessary stress on the metal that will lead to weaknesses or cracks in the finished products.
Process
This process involves a series of geometric dies. Metal material is then passed through the press so it can either be pressed or drawn into each die. As a result, the final shape of the item is achieved and it takes about an average of 60 components in a minute.
The process may be repeated if there is a need to manufacture complex shapes.
Stamping, otherwise known as progressive die pressing, is similar to deep draw pressing but is only able of producing shallow and simple components with the exception of using thin sheet metal instead of blanks. The progressive die pressing produces around 250 parts in a minute.