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首页> 外文期刊>Journal of Materials Engineering and Performance >Study and Simulation of Critical Factors Affecting Final Quality in Electromagnetically Hemmed Automotive Aluminum
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Study and Simulation of Critical Factors Affecting Final Quality in Electromagnetically Hemmed Automotive Aluminum

机译：电磁包边汽车铝材影响最终质量的关键因素的研究与仿真

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A previous study on electromagnetic forming (EM) hemming technology carried out in TECNALIA showed the real capability of this high speed deformation method to produce quality hemmed parts (Jimbert et al., J. Mater. Process. Technol. 211:916-924, 2011). Continuing with the development of this promising new application for the EM technology, some new experiments were run. The objective of this study is to focus on the critical processing factors that affect the final quality of the electromagnetically hemmed parts. For this purpose, an experimental plan was designed changing different input parameters and output quality parameters measured to quantify the results. The flange height limit was obtained for the studied experimental setup and was established at 10 mm. The bending radius and the gap between the inner and the outer part have to be keep to the minimum to increase final quality. In parallel to the physical experiments, EM hemming simulations were carried out using an EM loose coupling simulation method. An EM hemming process simulation of a circular whole part was carried out using shell elements. Results were compared with cross section simulations of the hemmed union using solid elements in order to analyze the importance of the type of element used for EM hemming simulation. Simulations revealed that solid elements reproduce quality aspects better than shell elements.
机译：先前在TECNALIA中进行的电磁成型（EM）包边技术研究表明，这种高速变形方法能够生产出高质量的包边零件（Jimbert等人，J。Mater。Process。Technol。211：916-924， 2011）。继续开发这种有前景的EM技术新应用程序，并进行了一些新的实验。这项研究的目的是集中于影响电磁折边零件最终质量的关键加工因素。为此，设计了一个实验计划，该计划更改了所测量的不同输入参数和输出质量参数以量化结果。法兰高度极限是针对所研究的实验设置而获得的，并设置为10 mm。弯曲半径以及内部和外部之间的间隙必须保持最小，以提高最终质量。与物理实验并行，使用EM松耦合模拟方法进行了EM包边仿真。使用壳单元对圆形整个零件进行EM包边过程仿真。将结果与使用实体元素的折边联合的横截面模拟进行比较，以分析用于EM折边模拟的元素类型的重要性。模拟显示，实体元素比外壳元素更好地再现质量方面。

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