Multi-material solutions
Objectives
An innovative answer towards competitive materials: composite steels
- Colaminated concept for high strength steels (HSS)
- Sandwich concept for very high strength steels (VHSS) for structural and crash applications
Colaminated concept for high strength steels (HSS)
- Combination of ease of both steel forming and painting process with the polymer small impact compliance
- By colaminating a thin steel sheet with a polymer film
- Stiffness
- Mechanical strength
- Forming capabilities
- Surface
- Flexibility: handling and small impact compliance
- Low density
- Sound damping
- Weight saving from 30 to 50 % compared to monolithic reference to steel/polymer thickness
- Improved small impact compliance and dent resistance behaviour (energy x5 before marking compared to 0.7 mm monolithic reference)
- Better handling even for ultra-thin steel sheets
- More tolerating stamping behaviour (patented)
- High vibration damping qualities
Sandwich concept for very high strength steels (VHSS) for structural and crash applications
The use of a steel/polymer sandwich allows to:
- Significantly increase the absorbed energy by the two steel skins
- Strongly improve crash resistance of the structure as a result
Composition:
- VHS steel (0.6 mm)
- Polymer (1.6 - 2.0 mm)
- VHS steel (0.6 - 1.0 mm)