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首页> 外文期刊>Metals >Effect of Al 6061 Alloy Compositions on Mechanical Properties of the Automotive Steering Knuckle Made by Novel Casting Process
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Effect of Al 6061 Alloy Compositions on Mechanical Properties of the Automotive Steering Knuckle Made by Novel Casting Process

机译：Al 6061合金成分对新型铸造工艺汽车转向节力学性能的影响。

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This study demonstrates the feasibility of a novel casting process called tailored additive casting (TAC). The TAC process involves injecting the melt several times to fabricate a single component, with a few seconds of holding between successive injections. Using TAC, we can successfully produce commercial-grade automotive steering knuckles with a tensile strength of 383 ± 3 MPa and an elongation percentage of 10.7 ± 1.1%, from Al 6061 alloys. To produce steering knuckles with sufficient mechanical strength, the composition of an Al 6061 alloy is optimized with the addition of Zr, Zn, and Cu as minor elements. These minor elements influence the thermal properties of the melt and alloy, such as their thermal stress, strain rate, shrinkage volume, and porosity. Optimal conditions for heat treatment before and after forging further improve the mechanical strength of the steering knuckles produced by TAC followed by forging.
机译：这项研究证明了一种称为定制添加剂铸造（TAC）的新型铸造工艺的可行性。 TAC工艺涉及多次注入熔体以制造单个组件，两次注入之间保持几秒钟的时间。使用TAC，我们可以用Al 6061合金成功地生产出抗拉强度为383±3 MPa，伸长率为10.7±1.1％的商业级汽车转向节。为了生产具有足够机械强度的转向节，通过添加Zr，Zn和Cu作为次要元素来优化Al 6061合金的成分。这些微量元素会影响熔体和合金的热性能，例如其热应力，应变率，收缩率和孔隙率。锻造前后的最佳热处理条件进一步提高了TAC锻造后转向节的机械强度。

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