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Have you ever wonder about this technology?

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To better understand it let’s start with explaining three pillars of extrusion.

 

We use different alloyed aluminium round shaped bars as raw material.  We call these round bars “billets” and they turn in to the exact form you want at the end of production line. We are providing the necessary hydraulic pressure to make billet flow through die and turn in to the exact shape needed by an extrusion press.  “Die” is a tool that made out of steel that gives the profiles its final form.

You can imagine toothpaste coming out of its tube to understand extrusion technology in a very simple way.  
The toothpaste gets the shape of the exit hole by the pressure you apply on the tube. 

Let’s get in to further details so you can understand the complexity of the system and its requirements.

The starting point of the production is the billet.  The quality of the end product directly reflects the quality of the billet.  The billets quality is affected by the metallurgical features of the molten metal’s alloy, the optimization of the casting parameters and homogenization of the casted billet. 

You have to prepare the billet before inserting it to the press machines chamber by the help if stamp.  We made it by heating the billet.  This step is not only the first step of the heating processes that had been held on to the product through the production but also a method to soften the billet which lowers the required extrusion pressure amount.  We heat the billet chamber of the press and the die as well, to stabilize the heat through the extrusion.  The billets alloy and the extrusion conditions define the required temperature.

We insert the billet in to the chamber of the press by cutting it to the required length once it reaches the production heat.  The inner side of the billet flows through the die and get its form while the outside of the billet stays in the chamber as a result of the friction and pressure occurs within the chamber.  That outside area left at the back of the billet is being cut from the billet at it contains a metallurgical layer of oxide.  The profile that exits from the die rapidly cools down by gas or fluid based coolers in accordance with the mechanical requirements of the product. This is the second step of the heat treatment of the production.

The profiles which progress on run-out table after cooling process, have been cut in to the required length right after stretching process.  Stretching process aims to get rid of the tension on the profile occurs during the extrusion and also give the profiles the linear shape.

The journey of the billet through the extrusion press ends here and the proceeds to the later stages in accordance with customer needs. 

If you are showing interest to this technology or have enquiries, our “Solution and Service Platform” members will be glad to answer your questions