Effect of Pin Shape on Thermal History of Aluminum-Steel Friction Stir Welded Joint: Computational Fluid Dynamic Modeling and Validation

Materials

Hamed Aghajani Derazkola¹  Mohammed Abed Jawad²  Aleksandra Świerczyńska³  Dariusz Fydrych³  Wanich Suksatan⁴  Mahmoud E. Abdullah⁵  Dmitry Olegovich Bokov⁶ 

[1] Department of Mechanics, Design and Industrial Management, University of Deusto, Avda Universidades 24, 48007 Bilbao, Spain;Department of Medical Laboratory Technology, Al-Nisour University College, Baghdad 6770, Iraq;Faculty of Mechanical Engineering and Ship Technology, Institute of Manufacturing and Materials Technology, Gdańsk University of Technology, Gabriela Narutowicza Street 11/12, 80-233 Gdańsk, Poland;Faculty of Nursing, HRH Princess Chulabhorn College of Medical Science, Chulabhorn Royal Academy, Bangkok 10210, Thailand;Mechanical Department, Faculty of Technology and Education, Beni-Suef University, Beni-Suef 62511, Egypt;Pharmaceutical Natural Sciences Department Institute of Pharmacy, Sechenov First Moscow State Medical University, 8 Trubetskaya St., Bldg. 2, 119991 Moscow, Russia;

关键词: friction stir welding;    aluminum alloy;    St-14 steel;    dissimilar joint;    computational fluid dynamic;    thermal modeling;   

DOI  :  10.3390/ma14247883

来源: DOAJ

【 摘 要 】

This article studied the effects of pin angle on heat generation and temperature distribution during friction stir welding (FSW) of AA1100 aluminum alloy and St-14 low carbon steel. A validated computational fluid dynamics (CFD) model was implemented to simulate the FSW process. Scanning electron microscopy (SEM) was employed in order to investigate internal materials’ flow. Simulation results revealed that the mechanical work on the joint line increased with the pin angle and larger stir zone forms. The simulation results show that in the angled pin tool, more than 26% of the total heat is produced by the pin. Meanwhile, in other cases, the total heat produced by the pin was near 15% of the total generated heat. The thermo-mechanical cycle in the steel zone increased, and consequently, mechanical interlock between base metals increased. The simulation output demonstrated that the frictional heat generation with a tool without a pin angle is higher than an angled pin. The calculation result also shows that the maximum heat was generated on the steel side.

【 授权许可】

Unknown