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首页> 外文期刊>Proceedings of the Institution of Mechanical Engineers. Part L, Journal of Materials: Design and Application >Optimization of A-TIG welding process parameters for RAFM steel using response surface methodology
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Optimization of A-TIG welding process parameters for RAFM steel using response surface methodology

机译：使用响应面法优化RAFM钢的A-TIG焊接工艺参数

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摘要

In the present work, the optimization of Activated TIG (A-TIG) welding process parameters to achieve the desired weld bead shape parameters such as depth of penetration, bead width, and heat-affected zone (HAZ) width have been carried out using response surface methodology (RSM). The main problem faced in fabrication of weld joints is the selection of optimum combination of input variables for achieving required quality of welds. This problem can be solved by development of mathematical model and execution of experiments by RSM. Central composite design of RSM has been used to generate the design matrix for generating data on the influence of A-TIG welding process parameters. The input variables considered were welding current, torch speed, electrode tip angle, and arc gap. The response variables considered were depth of penetration, bead width and HAZ width. A second-order response surface model is developed for predicting the response for the set of given input process parameters. Then, numerical and graphical optimization is performed using RSM to obtain the desired depth of penetration, bead width, and target HAZ width using desirability approach.
机译：在当前工作中，使用响应进行了优化的活化TIG（A-TIG）焊接工艺参数，以实现所需的焊缝形状参数，例如熔深，焊缝宽度和热影响区（HAZ）宽度。表面方法学（RSM）。焊接接头制造中面临的主要问题是如何选择输入变量的最佳组合以实现所需的焊接质量。通过开发数学模型和执行RSM进行实验可以解决此问题。 RSM的中央复合设计已用于生成设计矩阵，以生成有关A-TIG焊接工艺参数影响的数据。考虑的输入变量为焊接电流，焊炬速度，电极尖端角度和电弧间隙。考虑的响应变量是渗透深度，珠子宽度和HAZ宽度。开发了一个二阶响应表面模型，用于预测给定输入过程参数集的响应。然后，使用期望方法，使用RSM进行数值和图形优化，以获得所需的穿透深度，焊缝宽度和目标HAZ宽度。

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