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近年来,世界性能源问题变得越来越严重,这使得减轻汽车自重、降低油耗成了各大汽车生产厂提高竞争能力的关键。据有关数据介绍,汽车重量每减少50kg,每升燃油行驶的距离可增加2km;汽车重量每减轻1%,燃油消耗下降0.6%～1%。铝具有密度小、耐蚀性好等特点,且铝合金的塑性优良,铸、锻、冲压工艺均适用,最适合汽车零部件生产的压
In recent years, the world’s energy problems have become more and more serious, which makes the reduction of automobile self-respect and reduction of fuel consumption have become the key to enhancing the competitiveness of major automobile manufacturers. According to the data, every 50kg reduction in vehicle weight can increase the distance traveled by 2 liters per liter of fuel; for every 1% reduction in vehicle weight, fuel consumption decreases by 0.6% to 1%. Aluminum with low density, good corrosion resistance and other characteristics, and excellent plasticity of aluminum alloy, casting, forging, stamping process are applicable, the most suitable pressure for the production of automotive parts