双相不锈钢TIG焊接工艺参数的主成分分析与灰色田口分析比较

Sandip Mondal, G. Nandi, P. K. Pal
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引用次数: 0

摘要

通过科学技术的发展,对双相不锈钢(DSS)的钨惰性气体(TIG)焊接工艺进行精确的了解和控制,使其更加容易、舒适和实用。在特定的焊接工艺参数控制下,对DSS进行了TIG焊接。焊接质量在很大程度上取决于这些工艺参数。在本研究中,选取了一些有价值的焊接参数。这些是焊接电流,保护气体流速和焊接速度。采用主成分分析(PCA)方法和基于灰色的田口L9正交阵列(OA)实验方案,以信噪比(N/S)为概念,对ASTM/UNS 2205 DSS焊缝的TIG焊接工艺参数进行优化。然后,对上述两种TIG焊接工艺参数分析的压缩结果进行了计算。从极限抗拉强度、屈服强度和伸长率三个方面评价了DSS上TIG焊接的质量。两种分析的压缩结果表明,持续改善DSS焊接质量在化工、石油和天然气行业不同部件中的应用是可行的。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Comparison between PCA analysis and Grey based Taguchi analysis of TIG welding process parameters on Duplex stainless steel
Tungsten inert gas (TIG) welding on Duplex stainless steel (DSS) is more easy, comfortable and useful, if the process is precisely understood and controlled through development of the science & technology. TIG welding on DSS has been performed with the help of specific controlled welding process parameters. Welding quality has been strongly depended on these process parameters. In this study, some valuable welding parameters are chosen. These are welding current, shielding gas flow rate and speed of welding. These process parameters of TIG welding for ASTM/UNS 2205 DSS welds are optimized by using Principal Component Analysis (PCA) method and Grey based Taguchi’s L9 Orthogonal array (OA) experimental plan with the conception of signal to noise ratio (N/S). After that, compression results of above mentioned two analyses of TIG welding process parameters have been calculated. The quality of the TIG welding on DSS has been evaluated in term of ultimate tensile strength, yield strength and percentage of elongation. Compression results of both analyses indicate application feasibility for continuous improvement of welding quality on DSS in different components of chemical, oil and gas industries.
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