Sheet Metal Stamping is a low-cost high-speed manufacturing process that produces a high volume of identical metal components, which has contributed importantly to many industrial applications such as vehicles, equipment, electronics, appliances, tools, and so much more. For example, sheet Metal Stamping provides a large number of wholesale machine parts for Mechanical Industry.
Basic techniques of Sheet Metal Stamping
Sheet metal stamping machine may do more than just stamping; they can cast, punch, cut, and shape metal sheets. Machines can be programmed or computer numerically controlled (CNC) to offer high precision and repeatability for each stamped piece. Electrical discharge machining (EDM) and computer-aided design (CAD) programs ensure accuracy
Blanking is a steel manufacturing process in which a flat, geometric shape (or “blank”) is created by feeding a coil of sheet metal into a press and die. The blank is punched out from a large metal sheet in this process.
If a part requires slots, holes, or other cutouts, piercing can be employed. Piercing, which can be performed simultaneously with blanking, punches the requisite shapes out of the metal sheet.
CNC punching is an important option for generating sheet metal blanks. Punching is an inherently faster operation that lends itself to metal fabrications that have many similar features or where there is a higher volume of parts per run.
Metal embossing is used to impart a design upon metal sheets. The metal is pushed with an embossing tool or stylus to create a raised effect on the opposite side. By placing the metal sheet on a rubber or foam pad, the positive impression has a smooth surface that will shine or can take pigment.
Bending refers to the general technique of forming metal into desired shapes such as L, U, or V-shaped profiles. The bending process for metal results in a plastic deformation that stresses above the yield point but below the tensile strength. Bending typically occurs around a single axis.
When you are designing the bends into your stamping metal part, it is important to allow for enough material — make sure to design your part and its blank so that there is enough material to perform the bend. Some important factors to remember:
If a bend is made too close to the hole, it can become deformed.
Notches and tabs and slots should be designed with widths that are at least 1.5x the thickness of the material. If made any smaller, they can be difficult to create due to the force exerted on punches, causing them to break.
Every corner in your blank design should have a radius that is at least half of the material thickness.
To minimize instances and severity of burrs, avoid sharp corners and complex cutouts when possible. When such factors cannot be avoided, be sure to note burr direction in your design so they can be considered during stamping
Coining is a bending technique wherein the workpiece is stamped while placed between a die and the punch or press. This action causes the punch tip to penetrate the metal and results in accurate, repeatable bends. The deep penetration also relieves internal stresses in the metal workpiece, resulting in no spring-back effects.
Flanging is the process of introducing a flare or flange onto a metal workpiece through the use of dies, presses, or specialized flanging machinery.
Custom Sheet Metal Stampings Material Options
We work with a wide range of custom materials for your projects. If you don’t see your preferred material option listed below, contact us to discuss your project’s specific requirements.
Custom Sheet Metal Stamping
Our Custom Sheet Metal Stamping service provides metal forming processes that apply custom tooling and techniques to produce parts specified by the customer. We could offer a wide range of industrial and application parts and components that employ custom stamping processes to meet high-volume production needs and ensure all parts meet exact specifications.