Sheet metal stamped parts are metal components processed through stamping. This transformed sheet metals into durable stamped parts. During the process, sheet metals are formed according to your desired shapes.For your stamped parts requirements, Our complete line of sheet metal stamping parts is a good choice for hardware, medical industry, automotive, renewable energy, residential improvement, industrial, aerospace, and more industries.
Sheet Metal stamping processes
In sheet metal stamping processes, the types differ from one another, depending on what shape they achieve. It’s very rare that an precision metal stamping parts makes use of only one technique because each process achieves a certain design on sheet metal. If you are finding metal stamping parts manufacturer for your projects. Papler Industry supply professional service in custom stamped sheet metal parts, we can offer precision stamped parts with competitive price and strict delivery time.
Some types of metal stamping include the following: piercing, coining, lancing, drawing, embossing, and blanking. Although they may involve differentiated techniques, they’re all done in room temperature environments with minimal-to-no application of heat. These cold-forming processes are made possible by different types of tooling dies, machinery, and other tools to achieve the desired appearance. Below are 6 types of sheet metal stamping processes.
Piercing is one of the most basic forms of metal stamping. In this method, sheet metal is securely placed on a workbench. Using a machining tool, a hole is punched through the sheet metal, creating multiple small hollow areas. Unlike in other techniques, the resulting punched material is discarded from the entire process and won’t be used later on.
In this type of process, it’s important that the punching motion remains instantaneous. This ensures that there will be no deformations in the area surrounding the hole formation.
Blanking appears similar to piercing, but with a major difference — the punched piece is not discarded, but instead is considered as the finished product. Many metal stampers usually do this as the first phase of an entire metal stamping project, followed by other techniques such as piercing, bending, or coining.
Blanking is done in order to fabricate small or medium-sized metals that have been cut out from a large metal sheet. This is an ideal process for both low and high-volume production due to its simplicity, yet ability to create high precision metal cuttings.
When referring to stamping metal, metal stamping parts manufacturers often refer to the drawing process. This is where two opposite ends of sheet metal are held in place by a machine. Below the sheet metal is a die that has a certain shape or cross-section. A punch produces a high impact force to push the sheet metal onto the die, effectively deforming it to match the die’s cross-sections.
Drawing can be further classified into shallow drawing and deep drawing. Shallow drawing is called such because the radius of the primary blank is equal to the depth of the draw. Meanwhile, deep drawing usually forms cup-shaped products. This is where the radius of the primary blank is significantly smaller than the depth created.
As the name suggests, coining is a metal stamping technique in which a small piece of metal is stamped in order to take the shape and features of a coin. This is a closed die forging technique wherein the metal specimen is stamped in whole or in part, by two dies that are closing toward each other on both sides of the metal.
Unlike piercing and blanking, lancing is a type of metal stamping that does not end up in the removal of metal pieces. Instead, the die and the punch work in such a way that they both create a slit on the sheet metal. This process does not result in scrap metal pieces, such as slugs that have to be discarded or removed during post-processing.
Lancing creates specialty shapes and designs across various metals. Its distinct feature is a hook-like shape that is used for any application that requires vents, tabs, or openings.
Embossing is a technique that produces unique raised surfaces on the area of a sheet metal. Embossed materials can be produced in two ways, by using a machine or a die set.
Embossing can be used in a number of applications due to the complexity of designs that it can form. Some prime examples are car hoods, door frames, metal coverings, plates, engine housings, checkered steel plates, and the like.
Simple techniques such as piercing and blanking are usually considered as starting points of a metal stamping project — they are usually followed by secondary processes before the final product is created. Complex techniques like drawing, embossing, lancing, and coining, on the other hand, are capable of producing specialty designs that don’t require further machining. The importance of metal stamping cannot be stated enough for all kinds of industries. Its uses range from small consumer products to large stamping for automotive and other industries of scale.
Four Metals Most Commonly Used in Metal Stamping
Aluminum is a non-ferrous metal that has a relatively low cost, an excellent strength to weight ratio, and is suitable for high-speed production. Its strength-to-weight ratio enables the production of components that are durable and strong, yet lightweight. It also offers good thermal and electrical conductivity while resisting damage that may be caused by electrical charges or heat. It has the added benefit of not requiring a coating during the finishing process, although it can be anodized to enhance its appearance and improve its corrosion resistance.
Stainless steel is a ferrous metal that contains high levels of chromium, molybdenum, and nickel. The addition of these elements gives stainless steel greater resistance to corrosion than other types of steel. This metal is available in many different varieties, each with unique characteristics to fulfill specific applications. Stainless steel is highly durable, has high tensile strength, and retains its strength and characteristics even when exposed to temperature extremes. Stainless steel is stronger and harder than carbon steel, which makes it ideal for knives or cutting tools, and its stain resistance makes it easy to clean and maintain.
Carbon steel materials are available in both flat sheets and coils. The metal’s composition differs from stainless steel because it contains 2.1% carbon by weight and has lower ductility and offers less resistance to corrosion. Carbon steel provides several benefits for metal stamping, including being a low cost, high strength material. Carbon steel can also be soldered, and with proper maintenance is a very durable metal.
Copper is easily formed, making it perfect for fast production of one-piece seamless components, and is compatible with cold forming processes, which hardens the metal. Copper is a low maintenance durable metal that resists corrosion and has natural hygienic properties, which make it suitable for applications in the medical and food and beverage industries.
Brass is a copper-zinc alloy that retains many of copper’s beneficial characteristics. Brass has a smooth surface, is resistant to corrosion, easily soldered, and offers conductivity that makes it suitable for a wide range of electronic applications.