Effect of Submerged Arc Welding Parameter on Crack Growth Energy on St37

Publish Year: 1396
نوع سند: مقاله ژورنالی
زبان: English
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شناسه ملی سند علمی:

JR_JSMA-9-4_015

تاریخ نمایه سازی: 12 اسفند 1398

Abstract:

In this article the influence of welding parameters such as electrical current, feed rate and stick out on crack growth energy was investigated. Therefore, prepared specimens were welded in various conditions. Using the Minitab software, 18 states of 36 possible states were chosen and applied. Then a crack was crated on the weld metal and the force-displacement diagram was plotted. Comparison of results shows that in high electricity current, the extra heat flux is the dominant factor, which causes coarse grains of microstructures. On the other hand, in low electricity current, lack of fusion and penetration reduce the crack propagation energy. Furthermore, the neural network could predict the amount of energy with high accuracy.                                    

Authors

J.A Khodaii

Department of Mechanical Engineering ,Amirkabir University of Technology, Tehran, Iran

A Mostafapour

Department of Mechanical Engineering ,University of Tabriz, Tabriz, Iran

M.R Khoshravan

Department of Mechanical Engineering ,University of Tabriz, Tabriz, Iran

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