Extrusion Casting Process and Equipment Applications - Present Conditions
Extrusion Casting is a process of forming metal objects by forcing molten metal through a die to create a desired shape. This process usually produces objects that have a higher degree of transparency and a smoother, cleaner surface finish than those produced by other methods. The process can also be used for producing thin-walled objects with complex shapes, such as those used in medical and aerospace applications.
The main advantages of using an extrusion casting process are a greater degree of accuracy and repeatability, as well as a reduced need for machining and post-processing. This allows for a lower cost per part and less labor-intensive manufacturing. Additionally, the process also allows for more flexibility when creating complex geometries, which can lead to greater design freedom.
When it comes to the equipment used for this process, there is a wide variety of machines available on the market. The most common is the vertical extrusion press, which is typically used for creating long thin-walled objects. Horizontal presses are also available and are designed for short, fat objects. Some other machines used in this process include spinning machines, multi-axis machines, and automated extrusion machines.
When selecting an extrusion casting machine, the buyer should consider factors such as the size of the object being cast, the material being cast, the desired shape of the object, and the production rate. Additionally, the cost of the machine, the machines durability and accuracy, and the availability of replacement parts and service should also be taken into consideration.
The advantages of doing extrusion casting are numerous. The process offers a high degree of accuracy, repeatability, and a low number of machining and post-processing operations. This reduces the cost per part and provides greater design flexibility. Additionally, because of the flexibility of the process, it can be used to produce long, thin-walled parts that have complex shapes, such as those used in medical and aerospace applications.
However, the process does have some drawbacks. One of the most significant is that it requires a large amount of energy to heat and extrude the metal, leading to higher energy costs. Additionally, the process requires specialized equipment, which can also be expensive. Finally, the process is limited to a certain range of shapes and sizes.
In conclusion, extrusion casting is a cost-effective and reliable process for producing metal objects with high accuracy and repeatability. It requires specialized equipment, but due to its flexibility, can be used for creating complex geometries and thin-walled objects in a variety of shapes and sizes. For these reasons, it is a popular process for many medical and aerospace applications. With a variety of machines available on the market, the buyer should consider their specific needs and budget when selecting an extrusion casting machine.
