MATEC Web Conf.
Volume 224, 2018International Conference on Modern Trends in Manufacturing Technologies and Equipment (ICMTMTE 2018)
|Number of page(s)||6|
|Section||Manufacturing Technologies, Tools and Equipment|
|Published online||30 October 2018|
Effect of applied load on welding stress at different time periods
Samara National Research University, Department of Metals Technology and Aviation Materials, 443086, 34, Moskovskoye Shosse, Samara, Samara, Russia
2 Wenzhou University, School of Mechanical and Electrical Engineering, Chashan Education Town, 325035, Wenzhou, Zhejiang, China
3 Siberian State Industrial University, Department of Natural Sciences, 654007, 42, Kirova str., Novokuznetsk, Russia
* Corresponding author: email@example.com
In this study, pressure finite element welding simulations has been carried out. The welding model is a butt filled weld. The objective is to study the effect of pressure on welding stress of high strength steel at different time periods. From the study we can find that no matter at the first half of welding or and the last half welding or at the cooling time apply the load have little effect to improve the stress. Only under the entire welding process that the distribution of residual stress can be greatly improved. The results show that the residual stresses of the welding workpiece under specific pressure throughout the welding process decreased by 16.2% when compared with weld group without load applied. The maximum residual stresses of weld group without load applied are more than with the specific pressure load plates 120 MPa. But under other times putting the load cannot be improved. This paper just presents a simulation results that have a certain guiding significance.
© The Authors, published by EDP Sciences, 2018
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