Need some steel pressed, bent, punched, or stretched? If youre building anything mechanical with metal components, theres a good chance youll need a metal stamping machine.
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Metal stamping can be as simple as stamping letters for jewelry, or as complex as crafting parts for NASA space missions. Here is your quick guide to metal stamping machines and what they can do for you.
In simple terms, a metal stamping machine presses sheet metal into shapes. A die determines the shapes that will form and mold blank sheets. Sometimes called pressing, it is typically a cheaper way to produce industrial components for either long or short production runs.
In its most basic form, pressed metal can be commonly found in metal stamped jewelry (think of those little letters for stamping jewelry). Industries like automobiles, aviation, and space travel, as well as power tools and HVAC use more complex parts. Stamping is often combined with other processes like bending, embossing, punching, and more.
Bending is exactly what it sounds like. A piece of metal bends to the desired angle using an angled die. Meanwhile, flanging is a form of bending that creates a more complex curved or flared bend in the metal and requires a specialized die.
Blanking creates blank sheets of metal used on projects. Punching punctures holes in the metal, similar to what you might find on grate or grill covers. Stretching stretches the metal to create ultra-smooth surfaces.
Coining indents complex designs into metal like in coin making. Similar to coining, embossing makes simpler indentations to create a design. Meanwhile, engraving removes material by carving out patterns.
Metal stamping machines operate in one of three ways: hydraulic, mechanical, or servo powered. Hydraulic presses using the power of water pressure, while mechanical is motor-driven. Servo machines are also motor-driven but create more complex patterns by varying the pressure at different parts of the metal.
Before any parts can be tooled, the die designs must be engineered to exact specifications. Typically, an engineering firm uses 3D modeling software to create dies for your project.
Prototypes are then built to reduce the risk of manufacturing parts that dont work.
Once your dyes are created and tested, theyre loaded into your metal stamping machine to begin the production of your product.
Aluminum, brass, copper, and steel can all be fed into the stamping machine either automatically, or by hand. An automatic feeder is usually a separate machine.
Machines are large and take up a lot of space. If you are building your manufacturing process from the ground up, you might want to look into getting previously owned equipment.
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One of the largest suppliers of used metal stamping machines, rygatellc.com also has an excellent informative blog. Its a good idea to learn as much ahead of time before deciding what kind of metal stamping machine your project needs. You might not want to open a factory if youre only metal stamping jewelry.
If youre familiar with flat sheet metal in your business manufacturing process, youve likely needed to use stamping presses in the past. Punching and stamping presses play an integral part in creating workable metal pieces that can be used in a wide array of applications.
But when it comes to metal stamping presses, you have two key options to choose from manual metal stamping presses, or automated metal stamping presses. Which you choose will depend on the types of materials youre stamping, the volume of materials and your preferred stamping techniques.
At Cambridge Dynamics, were experts in all forms of presses, including forming presses, punch presses, stamping machines and more. So here is a little more info on stamping presses, so you can decide which version would serve you best.
In short, a metal stamping press (or stamp press) is a machine that utilises pressure to stamp materials usually flat sheet metal or a metal strip in blank form into specific shapes so they can be used in a variety of ways.
The metal workpiece is placed between a male and female die before the ram of the press is forced downward by hand or automatically (well get to that in a moment) with the force resulting in the metal changing shape. In progressive die stamping, where multiple dies are used at once, youre able to produce different shapes in one go.
Punch presses are almost identical, but the term is often used to describe the process of punching holes in metals, rather than just shaping them.
As the name suggests, manual metal stamping presses require the user to place their chosen material beneath the ram of the press, before using a large lever to force the ram downward into the metal. The force of the lever being pulled offers the ram enough force to bend the metal around your chosen dies, producing the desired shape.
Because of the level of physical involvement and the energy required to stamp metals individually, manual metal stamping presses are usually only recommended for small to medium-sized jobs. So if you have a lot of sheet metals you need to stamp, you should consider upgrading to an automated stamping press.
Automated metal stamping presses, on the other hand, require very little physical labour on the part of the user, other than perhaps positioning the material in place before stamping begins. Utilising Computer Numerical Control (CNC) and either hydraulic press force or mechanical press force (hydraulic presses and other mechanical presses can produce consistent pressure without human intervention) the ram is automatically moved downward into the material with consistent pressure, to produce the required shape.
Automated hydraulic presses or mechanical presses remove the need for physical force from the user, saving them time and energy. Because theyre able to work through far more pieces of material in a short space of time, these stamping presses are perfect for more industrial applications, where companies need access to many stamped materials regularly.
Whatever your stamping press needs, at Cambridge Dynamics were very experienced in helping businesses with their stamping operation, whatever it may be. If you need a hand with your press processes or would like more information, get in touch with Cambridge Dynamics today.
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