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Forecasting of mechanical properties of covered electrode containing La/CeO_2 based on fuzzy neutral network

Rare Metals 2018年第2期37卷 161-166页

作者： Yi-Jun Xu Yong-Huan Guo Hui Fan School of Mechanical and Electrical Engineering Jiangsu Normal University

In order to improve the mechanical properties of deposited metal of ilmenite type welding electrode, CeO2/La rare earth elements were added into electrodes based on E4301 electrode, then electrodes were produced, test plates were welded, and mechanical properties were tested based on National Standards of China. For the sake of solving the problems of large amount of mechanical properties tests, long test cycle and high test cost during the conventional production process of electrode, a prediction model of the mechanical properties of deposited metal based on Takagi-Sugeno （T-S） fuzzy neural network was established. Mn, Si and C contents of medium manganese in electrode, CeO2, and La contents of electrode and welding speed were selected as input variables of the prediction model, and the tensile strength, lower yield strength, elongation, impact energy and hardness of de- posited metal were selected as output variables. Finally, predicting experiment was done under test samples, and results show that average relative prediction error of the tensile strength, lower yield strength, elongation and hardness are 0.91%, 2.57 %, 4.94 % and 1.94 %, respec- tively, which reach the need of actual production. The re- sults of prediction show that the mechanical properties of deposited metal of electrode containing rare earth can be forecasted accurately through material composition of electrode and welding parameters based on T-S fuzzy neural network model.

关键词： covered electrode Rare earth element Fuzzyneural network Mechanical properties Prediction model

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维普期刊数据库

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The review on Chinese welding consumables in the last decade

引用

China Welding 1997年第1期6卷 4-13页

作者：李连胜李春范赵立三

In this paper the situation of Chinese welding consumables production output, exported amount, quality and varieties in the last decade was reviewed. Meanwhile, the imported production facilities for covered electrodes, CO2 welding wires and flux cored wires were introduced. Also, the currently existing problems in welding consumables profession were discussed, and development trend in the future was predicted.

关键词： welding consumables covered electrode welding wire welding flux brazingand soldering filler

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