Common metal stamping process

1. Punching method
Punching is a common metal stamping process. A sheet of metal is fixed in one place, or more precisely, a work surface. Using different tools and machines, a hole is made in the sheet metal and a series of different hollow areas are created in the sheet. Punching is a bit different because after punching a hole in the metal sheet, the part with the hole is removed and is no longer used.

To ensure that the sheet metal is not deformed, punching must be a continuous process. The area around the punching hole must be precisely designed. The machines used in this metal stamping process are made of high carbon steel and must be thoroughly maintained so that there are no areas of passivation or passivation that have the potential to deform the shape of the sheet metal.

2. Blanking method
There isn't much difference between blanking and punching - however, one big difference is that punched sheets are not thrown away. The punched sheet is the final component. Many metal stamping companies usually punch before doing anything else with the project. After blanking is complete, manufacturers proceed to other metal stamping stages such as extrusion and bending.

Blanking essentially involves making sheet - usually small or medium-sized sheet metal cut from larger pieces. This is a particularly advantageous process when it comes to high-volume manufacturing because it is easy and results in high-quality and precision-based cuts.

However, in some cases, the metal sheet may contain unwanted edges or burrs. This is a common problem; however, sharp edges and burrs are eventually removed by several processes, such as thermal deburring, manual deburring, and/or vibratory methods.

3. Stretching method
When it comes to metal stamping, some manufacturers also use what is called a drawing process. The method basically involves firmly securing both ends (opposite ends) of the metal sheet. The next step is to place the metal plate on top of a mold with a cross-sectional shape. Through a powerful punching process, the die creates a punch that pushes the sheet onto the machine. This helps develop the cross-sectional shape of the machine, deforming the sheet metal enough to meet the requirements.

The drawing method can also be divided into two other processes called deep drawing and shallow drawing. These are all similar processes to achieve the desired depth on the sheet metal. For example, in a shallow drawing process, the radius of the main sheet metal will always correspond to the depth of the drawing, which means it will be equal.

Deep drawing, on the other hand, is basically a cup cut in sheet metal to form different products. During deep drawing, the overall radius of the sheet metal is much smaller compared to the depth to which it will be carried out.

4. Extrusion method
The extrusion method in metal stamping is a typical process used by manufacturers to make products and parts in extruded shapes. The extrusion method involves a "closed die" manufacturing technique. In this case, the sheet metal is used as a whole, or extruded into parts. The process involves two separate dies that are positioned gradually closer together at the ends of the metal sheet to form a coin shape.

One of the biggest benefits of the extrusion method is that it is very effective in making a variety of metal parts and products with different quantity tolerances. It is also a relatively straightforward technique that can quickly and reliably create deformations (usually permanent) on a product. This essentially makes the part or product highly resistant to deep physical wear and strong impact.

5. Tongue incision
Tongue cutting technology is completely different from blanking and punching methods. how to say? Well, tongue cutting involves a unique metal stamping process that doesn't require removing any metal pieces from the sheet. The punch and die process is set to create a deep seam in the metal surface. The purpose of this is to avoid any metal scrap - for example, metal plugs that need to be disposed of or removed in the post-processing stage.

One of the main reasons manufacturers use the tongue cut method is that the process helps create a variety of unique and custom designs and shapes using different types of metals. For example, it is often used to create components and parts that need to be used for applications such as openings, vents, labels, etc.

6. Reinforcing method
Sheet metal beading is another unique technique for designing raised surfaces in specific areas of sheet metal. Studs can be created using two different methods - through a die set or a machine. The beading method is primarily used to create parts and assemblies for a variety of different applications, depending on the complexity of the desired design and its form. For example, some of the best examples of components that use beading include metal coverings, hoods, engine casings, door frames, checkerboard steel plates, and the like.

Beading techniques can be used on different metal surfaces, however, the most popular type of metal for this process is aluminium. This is mainly because the metal is very easy to work. Additionally, the material is durable and lightweight, two great features that help make the beading process more efficient and effective.