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首页> 外文期刊>Journal of Manufacturing Processes >A new model for predicting the thickness of intermetallic compounds in friction stir welding
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A new model for predicting the thickness of intermetallic compounds in friction stir welding

机译：一种预测摩擦搅拌焊接金属间化合物厚度的新模型

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摘要

The thickness of intermetallic compounds (IMCs) is one of the main factors affecting the weld quality. In addition, the IMC thickness will affect the product functionality, e.g., the thermal or electrical conductivity of the IMC layer can be the limiting factor in the related applications. Modeling and prediction of the IMC thickness in the friction stir welding (FSW) process is an important role that has not been elaborated in the literature. Additionally, many studies used a model for the IMC thickness that is related to the classical diffusion phenomenon. That model is suitable for the pure (intrinsic) diffusion process and does not consider the main unique characteristic of FSW, i.e., the stirring and subsequent linear velocity of particles (that has an impact on the diffusion process). To address this research gap, first, we develop a new model for the IMC thickness that takes the velocity of particles into account. Second, we provide an analysis on the velocity of particles in FSW based on vortex dynamics. Third, we analyze the proposed IMC thickness model with experimental data from the literature, discuss the added values of our model, and finally examine a case study. Understanding various manufacturing processes can further lead to the improvement of the existing processes and the development of novel processes.
机译：金属间化合物（IMC）的厚度是影响焊接质量的主要因素之一。另外，IMC厚度会影响产品功能，例如，IMC层的热或电导率可以是相关应用中的限制因素。摩擦搅拌焊接（FSW）工艺中IMC厚度的建模和预测是文献中未阐述的重要作用。另外，许多研究用来了与典型扩散现象有关的IMC厚度的模型。该模型适用于纯（内在）扩散过程，并且不考虑FSW的主要独特特征，即搅拌和随后的颗粒的线速（这对扩散过程产生了影响）。为了解决这一研究差距，首先，我们为IMC厚度开发了一种新模型，以考虑粒子的速度。其次，基于涡流动态，我们对FSW中的粒子速度进行了分析。第三，我们将建议的IMC厚度模型与文献的实验数据分析，讨论了我们模型的附加值，最后审查了案例研究。理解各种制造过程可以进一步导致改善现有过程和新方法的发展。

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