The calculation and experimental study of aluminum alloy contact base extrusion forming for high-voltage switch were carried out. The forming process of parts was simulated by using finite element method. The flow law of the metal during the extrusion was revealed. And according to the simulation results, the design and optimization of the extrusion die were carried out. According to the characteristics of the product, a rational process scheme was constituted. Qualified contact bases were extruded.
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