Aluminum matrix composite is one of the most commonly used compounds in chemical industry. In this paper, the main welding technologies of aluminum matrix composites are introduced, including the laser welding technology, the friction welding technology and the diffusion welding technology. Aluminum matrix composites reinforced by particle have many advantages, such as high specific strength and modulus, corrosion resistance, radiation resistance and dimensional stability. In this paper, the

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... hnology of SiC particle reinforced aluminum matrix composites is also discussed to provide some references for the relative researchers. Primary Methods of Welding Technologies of Aluminum Matrix Composites Laser Welding. The welding process of heat conduction, laser radiation heating surface, surface heat through the heat transfer oriented internal diffusion, by controlling the pulse width and energy, peak power and repetition frequency parameters of the melting, forming a melt pool. Because of its unique advantages, it has been successfully used in the precision welding of micro and small parts. As the laser welding with high energy density, high welding speed, weld fine, small heat affected zone