H-CFRP by Hänchen
  • Unique single pieces and small batches
  • Component strengths are designable
  • Our own winding technology
  • Highly stressable composite of carbon and metal

Lightweight design materials

Lightweight refers to a type of design, which aims to reduce as much as possible the weight of components. The geometries of the individual components can be optimized, for example to design especially energy-efficient systems. But lightweight design materials also have high potential. These include:

 

Metallic lightweight design materials

Metallic lightweight design materials include e.g.

  • aluminium
  • titanium
  • magnesium

Fiber composite materials

The technical sector uses mostly

  • glass fiber (GRP)
  • carbon fiber (CFRP)

for making composite materials.

Carbon fiber

CFRP, colloquially called carbon, stands for carbon fiber reinforced plastic and is a composite material consisting of carbon fibers embedded in a plastic matrix.

Carbon fibers are industrially produced fibers made of carbonic materials that are converted into carbon with a graphite-like atomic arrangement using special methods. A single carbon fiber has a diameter of about 5 to 10 micrometers.

             Density 1.6 to 2 g/cm3           
  Filament diameter 5 to 10 μm             
  Tensile strength up to 5,000 MPa            
  Tensile E modulus 180 to 500 GPa            
  Elongation at break 1 to 1.5 %            
  Coefficient of thermal expansion -1.5 to 0.1*10-6/K  

The material H-CFRP
Design is everything.

 

Developed by Hänchen, H-CFRP is a high load capacity composite made of carbon fiber and other components, refined to form a lightweight construction material.

 

Developed by Hänchen, H-CFRP is a high load capacity composite made of carbon fiber and other components, refined to form a construction material.
CFRP design

The carbon composite CFRP is an anisotropic material and therefore has to be designed specifically for the respective requirements.  

Defined fiber layers and numbers of fibers result in very different elastic moduli, and levels of component strength and bending stiffness. The direction and amount of the fibers are determined by the designer to reach the planned properties.

Fiber and matrix selection

The carbon fibers are embedded in a plastic, the so-called matrix, and thus fixed. Which amounts and combinations of which type of fiber and matrix material are used must be decided depending on the application in question.

Metal/carbon composite

When designing H CFK components, it must be decided which components are to be carbon-based, and which necessitate metallic materials.

Hänchen's special winding technology makes it possible to embed metallic ends directly into the carbon base material, since conventionally bonded joints won't withstand the very high stress, e.g. in hydraulic applications.

Surface

Pure CFRP is of limited suitability for mechanical finishing. For this reason, when producing H-CFRP, a hard surface is embedded, thus sealing the carbon base body.  

This enables cross-hatching for a low-friction and wear-resistant sliding surface.

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