Deep Drawing and Stamping are similar manufacturing processes that are often confused with one another. Each process produces strong and durable parts with high accuracy and tolerances.Â
Deep Drawing and Stamping each require a design process, with considerations of how the materials will affect the manufacturing process, production costs, and the ease of manufacture. Material thickness, the type of bending or formability involved are also characteristics that will be different for each process, depending on the shapes being formed, and the shape of the end product. While there are many similarities between these two processes, there are not as many differences.
Stamping is a manufacturing process when coils or flat sheets of material are formed into specific shapes. The Stamping process is used to make small changes to parts, such as bends, tabs, or embossments. These features tend to be much shallower in depth than a deep drawn part. Stamped parts start flat and go through a sequence of stamps from a press, where new features such as small tabs, are folded in, or holes are punched out. These features are very sharp, detailed, and precise. Stamping is a broad term that includes many specific forming techniques such as embossing, blanking, punching, bending, flanging, and the list goes on. Each of these methods involve short, quick, and abrupt hits or press movements.
At Toledo Metal Spinning, our stamping capabilities lie with our Komatsu Mechanical Press, where we intertwine our deep drawing abilities with stamping and are able to pierce holes, or form small tabs or flanges. Before the integration of our laser cutting technology, we used to cut blanks with this press. Â
Deep Drawing is used to make larger features such as as cups, pans, or domes. We draw parts from our two hydraulic AP&T presses. Drawing a cup requires exerting a significant amount of pressure on a flat sheet, and gradually drawing it over a die to sculpt it into the cup shape. Forming these shapes requires much more pressure over a longer period of time than a quick stamp. If the pressure is not controlled properly or is performed too fast, the metal will fracture or break, and will not be usable. A successful draw will achieve a durable part that may not require any further forming, also known as one-piece constructions.
The shape of the part is the main difference between a stamped or deep drawn product. Drawn parts will have more pronounced curves in the shapes, and will be larger than a stamped part. Below is an example of one of our deep drawn cups. Take note of the defined edges and curves, while its strength and durability is present.Â
Deep Draw Metal Stamping for Strength and Efficiency The deep drawing sheet metal forming process is a cold-forming metal fabrication process that is conducted in a room-temperature environment. A metal blank is stretched around a die cavity, eventually conforming to the shape of the plug, shape of the die, and the depth of the draw.
Benefits of Forming Deep Drawn Metal Stamped Parts The deep drawing sheet metal forming process is a cold-forming process performed in an environment at or near room temperature, where the metal is permanently deformed into the desired geometry. In this process, the flat metal blank is formed and stretched around a die cavity with a
What is the Trimming Process and How is it Performed? Trimming is a process used to remove excess material to achieve a desired shape, size, and finish, while removing burrs and smooths out sharp edges. To trim a part, it is put on a lathe and processed by a highly skilled metal spinner, or a
The Metal Finishing and Polishing Process The polishing process is a secondary metal fabrication process that is done to create a smooth and shiny surface by utilizing abrasives or chemical treatment, and can be done by hand or robotic automation. The purpose of adding a finish or polish is to improve the appearance by creating
The Benefits of One-piece Constructions At Toledo Metal Spnning Company, we have been forming metals since 1929. With nearly a century of experience, we have mastered a wide range of processes including laser cutting, metal spinning, deep drawing, machining, rolling and seam welding, to build strong and durable high-performance parts. But what truly sets us
The History of Deep Draw Metal Stamping What is Deep Drawing? Deep Draw forming with conventional tool and die technology is the conforming of sheet metal, commonly referred to as a blank, around a plug in either a hydraulic or mechanical press. The edges of the blank are restrained yet allowed to slide by a precise
What is Hydroforming? Hydroforming, or utilizing the hydro-mechanical-press is a metal forming process where complex and structurally sound parts with tight tolerances that can be made from various metals. A water-based fluid force, oil, gas, or a flexible elastic polymer membrane, is highly pressurized up to 10,000 PSi is applied onto a piece of metal,
Clarifying Elements to the Deep Draw Design Process – The Draw Ratio When it comes to tool design, the most important formula is The Draw Ratio, also known as Limiting Draw Ratio (LDR). The formula is: LDR = D / d D = blank diameter d = cup ID or punch diameter This ratio shows
What are the differences of Deep Drawing and Hydroforming? Hydroforming is a specialized Deep Drawing process also known as Sheet Hydroforming. Sheet hydroforming allows various materials to become complex and structurally sound parts. It allows for asymmetrical or irregular shaped geometries, while conventional Deep Drawn parts are symmetrical and uniform throughout the entire shape. Another
