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首页> 外文期刊>Journal of Materials Engineering and Performance >Mathematical Modeling of Weld Bead Geometry, Quality, and Productivity for Stainless Steel Claddings Deposited by FCAW
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Mathematical Modeling of Weld Bead Geometry, Quality, and Productivity for Stainless Steel Claddings Deposited by FCAW

机译：FCAW沉积不锈钢熔覆层的焊道几何形状，质量和生产率的数学建模

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摘要

In recent years, industrial settings are seeing a rise in the use of stainless steel claddings. The anti-corrosive surfaces are made from low cost materials such as carbon steel or low alloy steels. To ensure the final quality of claddings, however, it is important to know how the welding parameters affect the process’s outcome. Beads should be defect free and deposited with the desired geometry, with efficiency, and with a minimal waste of material. The objective of this study then is to analyze how the flux-cored arc welding (FCAW) parameters influence geometry, productivity, and the surface quality of the stainless steel claddings. It examines AISI 1020 carbon steel cladded with 316L stainless steel. Geometry was analyzed in terms of bead width, penetration, reinforcement, and dilution. Productivity was analyzed according to deposition rate and process yield, and surface quality according to surface appearance and slag formation. The FCAW parameters chosen included the wire feed rate, voltage, welding speed, and contact-tip-workpiece distance. To analyze the parameters’ influences, mathematical models were developed based on response surface methodology. The results show that all parameters were significant. The degrees of importance among them varied according to the responses of interest. What also proved to be significant was the interaction between parameters. It was found that the combined effect of two parameters significantly affected a response; even when taken individually, the two might produce little effect. Finally, the development of Pareto frontiers confirmed the existence of conflicts of interest in this process, suggesting the application of multi-objective optimization techniques to the sequence of this study.
机译：近年来，工业环境中不锈钢包层的使用正在增加。防腐蚀表面由低成本材料制成，例如碳钢或低合金钢。但是，为了确保包层的最终质量，重要的是要知道焊接参数如何影响工艺结果。珠粒应无缺陷，并以所需的几何形状，有效的效率和最少的材料浪费进行沉积。然后，本研究的目的是分析药芯焊丝焊接（FCAW）参数如何影响不锈钢熔覆层的几何形状，生产率和表面质量。它检查了AISI 1020碳钢复合316L不锈钢。根据珠子的宽度，渗透，增强和稀释来分析几何形状。根据沉积速率和工艺产量分析生产率，并根据表面外观和熔渣形成分析表面质量。选择的FCAW参数包括送丝速度，电压，焊接速度和尖端工件距离。为了分析参数的影响，基于响应面方法开发了数学模型。结果表明，所有参数均显着。其中的重要程度根据兴趣的响应而变化。事实也很重要，那就是参数之间的相互作用。发现两个参数的综合作用显着影响响应。即使单独服用，两者可能也没有效果。最后，帕累托边疆的发展证实了这一过程中存在利益冲突，这暗示了多目标优化技术在本研究序列中的应用。

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