高强度钢板可以减轻汽车重量并增加安全性，但由于其自身材料特性，存在的最大问题是成形性能差和回弹较大。
HSS can reduce vehicle weight and increase security, but because of its own material properties, there is the biggest problem of poor formability and more springback.
结果表明：最大应力值接近铝合金车轮的强度极限，充分利用了材料，有效的减轻了重量，应力分布更加合理。
Therefore, this design makes material sufficiently used, the weight of road wheel effectively lightened. at the same time, stress distribution is more reasonable.
原材料成本的快速提高，促使企业最大限度地追求减少产品的原材料重量。
Rapid rise of the cost of raw material promotes the enterprise to maximally reduce the weight of raw material.
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