Numerical Simulation of Friction Stir Welding for Dissimilar Metal Welding

2017 ◽  
Vol 4 (10) ◽  
pp. 11265-11269 ◽  
Author(s):  
Abhinand
Keyword(s):  
Numerical Simulation ◽  
Friction Stir Welding ◽  
Friction Stir ◽  
Dissimilar Metal ◽  
Dissimilar Metal Welding ◽  
Metal Welding

Controlling Interfacial Reaction during Dissimilar Metal Welding of Aluminium Alloys

2014 ◽  
Vol 794-796 ◽  
pp. 416-421 ◽  
Author(s):  
Li Wang ◽  
Yin Wang ◽  
Chao Qun Zhang ◽  
Lei Xu ◽  
Joseph Robson ◽  
...  
Keyword(s):  
Grain Size ◽  
Interfacial Reaction ◽  
Aluminium Alloys ◽  
Critical Thickness ◽  
Reaction Rates ◽  
Experimental Results ◽  
Friction Stir ◽  
Dissimilar Metal ◽  
Dissimilar Metal Welding ◽  
Metal Welding

A critical issue when joining aluminium alloys to dissimilar metals such as magnesium, titanium, and steel is to control the formation of brittle intermetallic compounds (IMCs) that occur due to the reaction at the joint interface. It is demonstrated that once the IMC exceeds a critical thickness, failure of welds always occurs in a brittle manner, with cracks propagating through the IMC. One approach to minimize IMC thickness is to use a solid state joining process, such as friction stir or ultrasonic welding. However, even using these processes, an IMC that exceeds the critical thickness can either form during welding or post-weld heat treatment. In this paper, a number of approaches are discussed to control IMC formation in welds between aluminium alloys and magnesium alloy. Modelling predictions indicate that interfacial reaction rates and grain size of the IMC phases are two critical factors to control layer growth. Experimental results demonstrate that the grain size of IMC layers changes as the layers grow. These modelling predictions and experimental results offer new design strategies to optimize dissimilar metal welding involving aluminium.

Numerical simulation of S355JR-316L dissimilar metal welding

2021 ◽  
Author(s):  
Bensheng Huang ◽  
Ziyi Fang ◽  
Jiang Yang ◽  
Jianneng Zheng ◽  
Shuibo Wang
Keyword(s):  
Numerical Simulation ◽  
Dissimilar Metal ◽  
Dissimilar Metal Welding ◽  
Metal Welding

Characteristics of electrospark deposition of a nickel-based alloy on 410 stainless steel for purpose of facilitating dissimilar metal welding by laser

2016 ◽  
Vol 87 (9-12) ◽  
pp. 2821-2828 ◽  
Author(s):  
Seyed Hamzeh Baghjari ◽  
Farshid Malek Ghaini ◽  
Hamid Reza Shahverdi ◽  
Mohammad Ebrahimnia ◽  
Carlo Mapelli ◽  
...  
Keyword(s):  
Stainless Steel ◽  
Electrospark Deposition ◽  
Dissimilar Metal ◽  
Dissimilar Metal Welding ◽  
Nickel Based Alloy ◽  
Metal Welding

Numerical Simulation of Plunge Force During the Plunge Phase of Friction Stir Welding and Ultrasonic Assisted FSW

2008 ◽  
Author(s):  
Kwanghyun Park ◽  
Bongsuk Kim ◽  
Jun Ni
Keyword(s):  
Numerical Simulation ◽  
Friction Stir Welding ◽  
High Frequency ◽  
Hybrid Welding ◽  
Ultrasonic Vibrations ◽  
Welding Quality ◽  
Friction Stir ◽  
Ultrasonic Assisted ◽  
Welding Force ◽  
Welding Technique

Ultrasonic assisted friction stir welding (UaFSW) is an hybrid welding technique, where high frequency vibration is superimposed on the movement of a rotating tool. The benefit of using ultrasonic vibration in the FSW process refers to the reduction in the welding force and to the better welding quality. The UaFSW system is being developed and its mechanism needs to be understood using both the experiments and the numerical simulations. In this paper, FE simulations of FSW and UaFSW using ABAQUS/Explicit were carried out to examine plunge forces during the plunge phase of FSW and UaFSW, respectively. First, the simulations of the conventional FSW process were validated. Then, simulation of UaFSW process was performed by imposing sinusoidal horizontal ultrasonic vibrations on the tool.

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