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A Global Leader in Industrial-Grade Metal Stamping
Metal stamping is a manufacturing process in which coils or flat sheets of material are formed into specific shapes. Stamping encompasses multiple forming techniques such as blanking, punching, embossing, and progressive die stamping, to mention just a few. Parts use either a combination of these techniques or independently, depending on the piece’s complexity.
Xometry manufactures custom metal stampings in various materials, including copper, brass, stainless steel, and steel alloys. We offer production volumes up to over one million parts and maintain tight tolerances, all with competitive lead times.
Types of Stamping
We offer single and multistage, progressive die, deep draw, fourslide, and other stamping methods to ensure the most effective method for manufacturing your products. Xometry’s experts can match your project with the appropriate stamping by reviewing your uploaded 3D model and technical drawings.
- Progressive Die Stamping uses multiple dies and steps to create deeper parts than would typically be achievable through single dies. It also enables multiple geometries per part as they go through various dies. This technique is best suited to high volume and large parts such as those in the automotive industry. Transfer die stamping is a similar process, except progressive die stamping involves a workpiece attached to a metal strip pulled through the entire process. Transfer die stamping removes the workpiece and moves it along a conveyor.
- Deep Draw Stamping creates stampings with deep cavities, like enclosed rectangles. This process creates rigid pieces since the extreme deformation of the metal compresses its structure into a more crystalline form. Standard draw stamping, which involves shallower dies used to shape the metal, is also commonly utilized.
- Fourslide Stamping shapes parts from four axes instead of from one direction. This method is used to manufacture small intricate parts including electronics components such as phone battery connectors. Offering more design flexibility, lower production costs, and faster manufacturing times, fourslide stamping is popular in aerospace, medical, automotive, and electronics industries.
- Hydroforming is an evolution of stamping. Sheets are placed on a die with a bottom shape, while the upper shape is a bladder of oil that fills to high pressure, pressing the metal into the shape of the lower die. Multiple parts can be hydroformed simultaneously. Hydroforming is a quick and accurate technique, though it requires a trim die to cut the parts out of the sheet afterward.
- Blanking cuts pieces out from the sheet as an initial step before forming. Fineblanking, a variation of blanking, makes precise cuts with smooth edges and a flat surface.
- Coining is another type of blanking that creates small round workpieces. Since it involves significant force to form a small piece, it hardens the metal and removes burrs and rough edges.
- Punching is the opposite of blanking; it involves removing material from the workpiece instead of removing material to create a workpiece.
- Embossing creates a three-dimensional design in the metal, either raised above the surface or through a series of depressions.
- Bending happens on a single axis and is often used to create profiles in U, V, or L shapes. This technique is accomplished by clamping one side and bending the other over a die or pressing the metal into or against a die. Flanging is bending for tabs or parts of a workpiece instead of the whole part.
CRS steel like 1008, 1010, or 1018 is popular; general-purpose material is perfect for cold forming.
Such as 301, 304, and 316/316L. 301 stainless steel has excellent tensile strength, while 304 has more significant performance and corrosion resistance at higher temperatures. 316/316L steel features the best corrosion resistance of the three, though it also costs more.
Including C110, which is a powerful conductor and easily formable.
Brass 230 (85/15) and 260 (70/30) are highly formable and corrosion-resistant. These brass alloys are also known as red brass and yellow brass, respectively.
Xometry can stamp other sheet metal materials on request, so feel free to contact our experts about the materials you need.
Our stamping materials can be post-processed with bead blasting, powder coating, chem film, anodizing, and plating in gold, silver, or electroless nickel. Learn more about our finishing options on our main sheet metal fabrication page.
Locations near Knoxville, Tennessee
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Metal stamping Knoxville, Tennessee