Optimization of the Indirect Extrusion Process of Copper-Clad Aluminum Rods by Methods of Statistical Experimental Designs and Numerical Analyses
Optimization of the Indirect Extrusion Process of Copper-Clad Aluminum Rods by Methods of Statistical Experimental Designs and Numerical Analyses
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DOI：
10.3389/fmats.2021.663306
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发表时间：
2021-05-13
影响因子：
3.2
通讯作者：
Mueller, Soeren
中科院分区：
文献类型：
--
作者：
Lechner, Stefan;Roemisch, Ute;Mueller, Soeren
复合材料挤压的成功与否受多个工艺参数的影响。为了研究铜包铝（CCA）棒材间接挤压过程中特定参数的重要性，应用统计学方法，采用中心复合试验设计。使用基于有限元法的软件DEFORM 2D对实验设计的运行进行建模，并通过四个响应变量描述产品质量进行评价。使用方差和回归分析，以及显着的线性和二次效应的五个研究的工艺参数之间的相互作用进行了鉴定。基于一个统计模型，一个整体的最佳设置的工艺参数进行了预测，利用响应面法与愿望的方法。通过将统计分析的输出应用于挤压试验，实现了高质量CCA棒的挤压。此外，统计分析的结果可以通过比较所研究的质量特性的预测值和实验测定值来验证。
The success of composite extrusion is influenced by multiple process parameters. In order to investigate the significance of specific parameters during indirect extrusion of copper-clad aluminum (CCA) rods, statistical methods were applied and a central composite experimental design was implemented. The runs of the experimental design were modeled with the finite element method based software DEFORM 2D and evaluated with respect to product quality, described by four response variables. Using variance and regression analyses, as well significant linear and quadratic effects of the five investigated process parameters as interactions between them were identified. Based on a statistical model, an overall optimum setting for the process parameters was predicted utilizing the response surface methodology with a desirability approach. By applying the output of the statistical analysis to an extrusion trial, the extrusion of a high quality CCA rod was achieved. Moreover, the results of the statistical analysis could be verified by comparing predicted and experimentally determined values of the investigated quality characteristics.