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首页> 外文期刊>Metallurgical Research & Technology >Potential of horizontal direct chill cast EN AW 6082 rods as forging stock in the manufacture of light weight suspension components
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Potential of horizontal direct chill cast EN AW 6082 rods as forging stock in the manufacture of light weight suspension components

机译:水平直接冷却铸造的潜力施工在轻质悬架组分的制造中的锻造库存

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摘要

Commercial EN AW 6082 rods cast at less than 50mm in diameter via horizontal casting appear to be adequate candidate as forging stock for the manufacture of small size automotive suspension components. Cast forging stock relies entirely on the forging deformation to develop the fibering known to be very beneficial for superior dynamic and impact properties. Hence, the forging die design is critical to ensure the sufficient amount and suitable orientation of fibering across the section of the component. Forgings produced from cast stock, submitted to an artificial ageing cycle directly after the forging step offer superior fatigue and impact energy values with respect to their counterparts processed with a solution heat treatment (SHT). The superior fatigue and impact energy values of the former are attributed to the particle characteristics; i.e. the spacing of void forming particles in these forgings is relatively smaller than in forgings processed with a separate SHT. The coalescence of voids at these particles eventually occurs at smaller loads and deteriorates toughness.
机译:通过水平铸件的直径小于50mm的商业EN 6082杆似乎是适用于用于制造小型汽车悬架部件的锻造库存的足够候选人。铸造锻造库存完全依赖于锻造变形,以开发已知的纤维对卓越的动态和冲击性能非常有益。因此,锻造模具设计对于确保在部件的整个部分中确保足够的量和合适的纤维的定向至关重要。锻件由铸造库存产生,直接在锻造步骤后直接提交到人造衰老周期,为其对溶液热处理(SHT)加工的对应物提供卓越的疲劳和冲击能量值。前者的卓越疲劳和冲击能量值归因于颗粒特征;即,这些锻件中的空隙形成颗粒的间隔相对小于用单独的SHT处理的锻件。这些颗粒处的空隙的聚结最终发生在较小的载荷并劣化韧性。

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