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组合式钢制凸轮轴是近20年来开发的新型内燃机零件,它与铸造或锻造整体式的凸轮轴相比,具有质量轻、加工成本低、材料利用合理等优点;可将凸轮宽度减小,并排列紧凑,可以降低汽车的成本、减轻发动机质量、提高发动机性能。目前,世界上许多汽车制造厂家越来越多地生产装配式凸轮轴并用于高性能发动机上。
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