Textile reinforcement for carbon-preforms & CFRP preforming
Textile reinforcement structures are the innovative alternative for components with high requirements!
Where an element is manufactured from several parts in other manufacturing processes and its strength or even the transmission of force is partially lost, this is not the case with the TFP process. Here all rovings run through one element, the fibre laying takes place in one piece and thus creates a complete reinforcement structure. "As if made of one piece", so to speak. This offers several advantages, such as more cost-effective production, higher rigidity and lightweight potential due to lower weight.
Textile reinforcement structures can be made from a wide variety of fibers, such as carbon (thicknesses from 3K to 50K), glass fiber, aramid, steels, basalt and ceramics. The application possibilities are almost unlimited.
In addition, punctual reinforcement structures can also be used in a wide variety of areas. Also where properties such as corrosion and temperature resistance as well as acid protection are important topics. Furthermore, textile reinforcement structures offer individual formability.
The carbon fiber composite components can be further processed in duroplastic or thermoplastic processes. Details on both variants of composite fiber production are explained below.
The carbon fiber composite components can be processed further in thermosetting or thermoplastic procedures. Details on both variants of the composite fiber production are explained below.
For thermosetting processes
Dry rovings (carbon, glass, etc.) will be laid on onto glass fabric, glass mats, or carbon meshes. The preforms are then wet-out and consolidated using infiltration techniques such as the RTM process or other resin systems. Additional thermal deformation is not possible after that.
On thermoplastic base
In this procedure, so-called Hybrid Rovings; i.e., mixtures of glass and carbon with thermoplastic materials (e.g., PA6, PP or PEEK), are placed on a thermoplastic medium like foil. By means of hot pressing, the preforms will be melted and are ready for use right after. The parts can be deformed further in postprocessing.