The Main Differences Between Direct And Indirect Extrusion

by Chirag
Direct And Indirect Extrusion

Direct And Indirect Extrusion

To know more about an extruder, you should comprehend the entire process of extrusion. By definition, in 3D printing, an extruder is a device used when a specified material, such as a pellet, rubber, or better yet plastic, is heated and then pushed into a die. The die is a mold used to shape the material when it is pushed into the small opening of the sides of the printer. Extrusion is a common way through which professionals produce sheets as well as strips and rubber shapes.

An extruder is a machine used in the process of extrusion. The entire process entails the application of a broad range of systems of cylinders used to heat the product. Typically, there are two types of extrusion, namely direct and indirect extrusion. As their names suggest, every kind of extrusion is made possible by using the respective machine. A Titan direct extruder is used in direct extrusion.

Uses Of A Direct Extruder

A direct extruder is often used in creating a broad range of various usable products. The device shapes materials. For instance, cereals are usually made using extruders. They utilize a uniform and controlled pressure coupled with temperature to create identical pieces of products. Pet foods are also packaged using extruders for that same reason- to produce quality foods and brands at consistent levels.

Direct And Indirect Extrusion

For several industries in the world, extruder machines are utilized in the creation of catalysts, including gels and sieves. Therefore, whether your form needs solid rods or, better yet, catalyst configuration, a direct extruder will always come in handy. In this blog post, we focus our discussion on the significant differences between 3D direct and indirect extruders. We highlight fundamental differences between the two with a focus on the Titan Extruder. 

Major Differences And Preferences

Direct extrusion is the standard type of extrusion. It is also known as forwarding extrusion. This process is pretty straightforward, just as the name suggests. Also, it is facilitated by a direct extruder. The material used in this case will be forced into the die using a screw.

Direct And Indirect Extrusion

Indirect extrusion, on the other side, is also termed as backward extrusion. Here, the billet moves in the same direction as the container. However, the die remains stationary. It is also held in place using a stem. Usually, the stem must be longer compared to the length of the container. Now that you understand both types of extrusion, you also need to know which extruder you should settle for. Here are a few facts about their differences:

By a look at the comparison, backward extrusion has several advantages. The method quickly eliminates all frictional forces involved in the extrusion process. It allows you to extrude larger billers at a slightly faster rate compared to forwarding extrusion. Other than that, there is a possibility of ending up with smaller cross-sections.

Direct And Indirect Extrusion

In Closing

Based on the information we have disseminated in this article, it is crucial for you as the manufacturer to make a viable decision when choosing either the direct or indirect extrusion method. Remember, your choice will determine the type of extruder you should invest in. It is also crucial to match the alloy with the selected extrusion process.



You may also like