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首页> 美国卫生研究院文献>Materials >Linear Elastic FE-Analysis of Porous Laser Welded Heat Treatable Aluminium High Pressure Die Castings Based on X-Ray Computed Tomography Data
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Linear Elastic FE-Analysis of Porous Laser Welded Heat Treatable Aluminium High Pressure Die Castings Based on X-Ray Computed Tomography Data

机译：基于X射线计算机断层扫描数据的多孔激光焊接可热处理铝高压压铸件的线性弹性有限元分析

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The welding of aluminium high pressure die castings is a well known and broadly investigated challenge in various fields of industry and research. Prior research in this specific field mainly focused on the optimisation of the welding and the casting process and on the cause of the frequently occurring porosity and incomplete fusion phenomena, whereas the impacts of these defects have hardly been addressed. Therefore, the underlying study presents the investigation of weldments in EN AC-AlSi10MnMg high pressure aluminium die castings by linear elastic finite element analysis based on X-ray computed tomography as a novel approach. Hereby, four laser weldments with differing surfaces and pore contents were investigated by X-ray computed tomography and tensile testing. Based on the voxel datasets of the porous weldments, triangular finite element meshes were generated and a numerical finite element analysis was conducted. Good agreement of the stress–strain curves between the simulations and the experiments was achieved.
机译：在工业和研究的各个领域中，铝高压压铸件的焊接是众所周知的且被广泛研究的挑战。在该特定领域的先前研究主要集中在焊接和铸造工艺的优化以及频繁发生的孔隙和不完全熔合现象的原因上，而这些缺陷的影响几乎没有得到解决。因此，基础研究提出了一种基于X射线计算机断层摄影的线性弹性有限元分析方法，对EN AC-AlSi10MnMg高压铝压铸件的焊件进行研究。因此，通过X射线计算机断层扫描和拉伸试验研究了具有不同表面和孔含量的四种激光焊接件。基于多孔焊件的体素数据集，生成三角形有限元网格，并进行了数值有限元分析。模拟和实验之间的应力-应变曲线良好吻合。

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