Investigations on Fabrication Techniques of Aluminium-Based Porous Material
The intention of this paper is to investigate the fabrication of aluminium-based porous material. The fabrication is done by two methods: the conventional drilling method and a non-conventional gas-releasing blowing agent technique. The experiments were conducted to compare the optimum value of porosity, compressive strength and metallurgical values. The non-conventional technique results in the aluminium foam with lightweight. The results show that the energy absorption capacity due to constant plateau stress and porosity is high in aluminium foam whereas compressive strength is low in this case. The conventional method has a great advantage to control the pore morphology such as the uniformity of pores, structure of pores. Energy diffraction X-ray spectroscopy and scanning electron microscope techniques are used for characterizing the aluminium metal foam.
KeywordsPure aluminium CaCO3 Gas-releasing blowing agent CNC drilling SEM
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