The transformation of metals answers different archaic and industrial techniques depending on the type of metal. For example, aluminum can be formed into different shapes using a deep drawing technique. This article explains clearly how the process of deep drawing of aluminum takes place.
What is aluminum deep drawing?
Deep drawing is a technique that allows you to make several shapes out of an aluminum plate. These can be circular, square, or rectangular with a certain depth. This technique allows, for example, to obtain aluminum containers or pans. It uses equipment and tools that form a device that facilitates the formatting with a given depth.
In the United States, there are several companies specializing in the transformation of metal parts. They proceed to the cutting, the shearing, and the stamping of the aluminum material in all its forms. The process of deep drawing is a technique that allows the production of deeply hollow parts from a sheet of aluminum cut according to the desired proportions. It should be noted that this method does not significantly reduce the thickness of the material but densifies it by compression.
Components of the stamping device
Generally, this device is composed of a punch, blank holders, and two steel blocks forming the die. Certain determining factors must be taken into accounts, such as the respect of the diameter of the blank and the punch, as well as the relationship between the scratches on the edges of the punch and the dimensions of the die. The pressure exerted by the blank holder must be proportional to the thickness of the blank and the desired depth.
To ensure proper operation, the entire device must be well-lubricated. Aluminum is a material that has a high stamping capacity. In this type of device, punch presses have a lower capacity because aluminum alloys have poor mechanical properties. Therefore, it is easy to make them change shape by simply exerting a given pressure.
On an industrial scale, the tools used for stamping must meet the quality and quantity of the desired number of parts. In this case, the device is automated. This method of transforming aluminum material greatly reduces production costs while optimizing the target quantity.
Advantages and disadvantages of aluminum deep drawing
This technique has advantages and disadvantages.
As mentioned above, the deep drawing method allows for the mass production of aluminum objects. It is used both by craftsmen and on an industrial scale. It is a technique that allows us to reduce production costs as much as possible.
The components of the devices are made of metal as well as aluminum material. The regular collision of the two leads to serious wear and tear. This implies regular component changes or repairs of the device. Lubrication is essential for all stamping methods and alloys.
Over time, there is a reduction in the diameter of the die. This can lead to a reduction in the number of products. With the degradation of the tips, a production system with annealing can be implemented. This is also an alternative way to remedy the wear of the tips. Wrinkling is caused by undesirable corrugations on the edges of the stamped parts.
It can also be caused by insufficient pressure force of the blank holder, thin material or blank, too much punch activity on the die, or scratches on the die edges. This can lead to tearing, i.e., the appearance of cracks in the stamped parts.
In conclusion, the technique of deep drawing of aluminum is made possible by a precise device. It can be artisanal or industrial. This method has advantages, but also some limitations. This article has given you all the information about this technique.
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