Aluminium metal foam Application
Aluminium metal foam Application is a cellular structure consisting of a solid metal as we as a large volume fraction of gas filled pores. Foam structure are both durable and lightweight with a large surface area to volume ratio. Aluminum foam can be manufactured applying a variety of methods including direct foaming of aluminum alloy melts and advanced metal powder processing. Complex-shaped foam components and 3D-shaped sandwich panels consisting of foam cores and aluminum face sheets can be produced. The application potential of these materials is discussed for various fields, namely light-weight construction, crash energy absorption and thermal or sound insulation Ultra-light metal foams became an attractive research field both from the scientific and industrial applications view points.
Closed-cell Aluminium metal foam Application, in particular aluminum alloy (Al-alloy) ones can be used as lightweight, energy-absorption and damping structures in different industrial sectors, detaining an enormous potential when transportation is concerned. Aluminium metal foam Application are isotropic porous materials with several unusually properties, that make them especially suited for some applications. Due to their low densities between 0.3 g/cm3 and 0.8 g/cm3 the foams can float in water (in case of closed porosity). Foams exhibit a reduced conductivity for both heat and electricity. The strength is lower than conventional dense aluminum and declines with decreasing density. Foams are stable at temperatures up to the melting point. They are incombustible and non-toxic.
Properties of Aluminum Metal Foam
2. Sound-proofing properties
3. Density: 0.1 to 0.35 g/cm³
4. Pore Size: 2-11 mm (Closed Cell)
5. Porosity: 60-90%
6. Compressive Strength: 44 Mpa
7. Size: 100 x 100 x 5 mm
8. Heat Resistivity: 660 °C
9. Resistivity: 100 Times over Metal Aluminum
4. Foamed aluminum cores for aluminum casting
6. Household and furniture industry
Aluminium metal foam Application is a high requirement of reducing weight in vehicles. Recycling of materials is also an important aspect. The improvement of the passive safety of cars, which is mainly influenced by the choice of materials and the car design. Three main applications of metallic foams can become important in a car energy absorption, lightweight construction and insulation. Good energy and sound absorbing properties of the aluminum foam support the use of foams in passenger cars.
The good relation between weight and stiffness supports the use of Aluminium metal foam Application for large area light-weighting automobile body sheets and structural parts, that are used in areas of the cars with increased requirements on stability. Examples are trunk lids, engine hoods and sliding roofs. All these parts should suffer no elastic deformations caused by the air stream. Vibrations must be avoided. Aluminum foams with their good insulation properties can be a good solution for these components. In trucks Aluminium metal foam Application can be used in stiffening of the underside protection. Aluminum foam used for many as energy-absorbing structures in the telescoping columns that support front and rear car bumpers.
Due to its lightweight Aluminium metal foam can become important for the aerospace industry. For example, Aluminium metal foam Application sheets or sandwich panels could replace the expensive honeycomb structures. This would have several advantages, for example reduced costs. Another important advantage is the isotropy of the properties of such panels and the absence of any kind of adhesive bonding. The latter could help to maintain the integrity of the structure in cases of fire.
Aluminium metal foam In ships the need for lightweight materials is also important. But, in comparison with cars, a high flexibility of materials processing is needed, because ships are not built in large series and are not built with highly standardized parts. Therefore aluminum foams or panels can have great advantages.
Foamed aluminum cores for aluminum casting
Casting that are used in cars are often made with weight-saving cavities. These cavities can be filled with Aluminium metal foam Application in such a way that foamed parts replace the sand cores, which is usually used for the preparation of cavities. The foam parts does not have to be removed after casting. This method accomplishes closed lightweight sections in the casting and creates internal configurations (stiffeners)which is not feasible with sand cores. Also relatively small cross-sections can be filled up with foamed cores. Besides the additional stiffening effect the use of foams has several other advantages, for example an increase of the capability of castings to absorb crash energy. They suppress noise and vibration of the structure.
For the paper industry it is possible to make light-weighing rolls with Aluminium metal foam Application filling. Foams can also serve as heat exchangers, heat shields, filters or carriers for catalysts. Another possibility is the use as electromagnetic wave shielding materials. Foams can be used for ceilings and walls of rooms containing electronic equipment.
Household and furniture industry
Because of its interesting, unique surface Aluminium metal foam offer a great potential for designers. It can be used for lamps, tables or household articles and accessories. In combination with wood the surface of the Aluminium metal foam Application can bring new effects into a room. Furniture made out of foam is light weighing, which can be a great advantage in offices or at fairs and exhibitions.
Building and Construction Industry
Building and construction applications are good possibilities for the use of Aluminium metal foam Application mainly because of their good fire penetration resistance and thermal insulation properties. For example foam parts or foam-filled panels can be used as elements in facades on the outside of buildings or wall coverings inside of buildings. In both cases aluminum foams can serve as energy saving elements because of their good thermal insulation properties. Aluminium metal foam Application panels can be used as sound absorbing materials in railway tunnels, under highway bridges or inside of building
Another field of application are light-weighing structural elements. These can be used for mobile bridges. Aluminum foams or foam panels could also be used for reducing the energy consumption of elevators by a lightweight construction. Due to its lightweight, aluminum foams are easy to handle. They can be easily installed without mechanical lifting equipment. This is perfect for high locations, for example ceilings, walls and roofs.
Aluminium metal foam Satellite heat exchangers, explosion-energy absorbers, silencers, and porous rocket engine fuel injectors made with metallic foams are finding new uses, often in technology-intensive industries such as the manufacture of semiconductors, electronics, and alternative-energy vehicles. Ironically, metallic-foam military components that often relied upon biological analogies in their design processes are now being adapted to biological uses (e.g., medical implants). As industrial applications expand, metallic foams are being produced using a wider variety of raw materials, in both closed-cell and open cell structures, by an increasing number of manufacturers.
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