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首页> 外文期刊>Archives of Foundry Engineering >Simulation of Stress Distribution in a Thick- Walled Bushing Produced by Die-Casting
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Simulation of Stress Distribution in a Thick- Walled Bushing Produced by Die-Casting

机译：压铸厚壁衬套中应力分布的模拟

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Metallographic investigations and a computer simulation of stresses in a gravity die-casting bushing were performed. Simulation of the casting process, solidification of the thick-walled bushing and calculations of the stress was performed using MAGMA5.3 software. The size variability of phases κII affecting the formation of phase stresses σf, depending on the location of the metallographic test area, was identified. The distribution of thermal σt and shrinkage stresses σs, depending on the location of the control point SC in the bushing's volume, was estimated. Probably the nature of these stresses will change slightly even after machining. This can cause variations in operating characteristics (friction coefficient, wear). Due to the strong inhomogeneity of the stress distribution in the bushing's casting, it is necessary to perform further tests of the possibility to conduct thermal treatment guaranteeing homogenization of the internal stresses in the casting, as well as to introduce changes in the bushing' s construction and the casting technology. The paper presents the continuation of the results of research aimed at identifying the causes of defects in the thick-walled bushing, die-casting made of CuAl10Fe5Ni5Cr aluminium bronze.
机译：进行了金相研究和重力压铸套管中应力的计算机模拟。使用MAGMA5.3软件进行了铸造过程的模拟，厚壁衬套的凝固以及应力的计算。确定了影响相应力σf形成的相κII的大小变异性，具体取决于金相测试区域的位置。根据衬套容积中控制点SC的位置，估算了热σt和收缩应力σs的分布。即使在加工后，这些应力的性质可能也会略有变化。这可能会导致运行特性（摩擦系数，磨损）变化。由于衬套铸件中的应力分布很不均匀，因此有必要进行进一步测试，以进行热处理以确保铸件内应力均匀化，并在衬套结构中引入变化和铸造技术。本文介绍了旨在确定由CuAl10Fe5Ni5Cr铝青铜制成的厚壁套管，压铸件中的缺陷原因的研究结果的延续。

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