An advanced numerical model of friction stir welding of DH36 steel
- Al-Moussawi M. ,
- Smith A. ,
- Young A. ,
- et al
- Al-Moussawi M. ,
- Smith A. ,
- Young A. ,
- Faraji M. and
- Cater S.
Links
Repository
Description
The CFD (computational fluid dynamics) technique was employed to develop a numerical model of friction stir welding (FSW) of DH36 steel (0.16%C, 1.2%Mn, 0.02%Cr, 0.02%Nb, 0.04%Al, 0.03%Cu) plate (thickness 6 mm) under low and high welding speed conditions (rotational speed 200 or 550 rpm, traverse speed 100 or 400 mm/min, respectively). Welding was conducted using a polycrystalline BN-WRe FSW tool. Welded joint microstructure, defects and phase changes were observed by infinite focus microscopy and SEM. Mechanical properties were characterised by tensile and fatigue tests. The numerical model was developed to take into account heat generation due to plastic deformation, material flow around the tool, heat losses from workpiece surfaces, temperature distributions in the tool and workpiece, strain rate distribution, viscosity variation around the tool, and torque in the contact region.
11th International Symposium, 17-19 May 2016, Poster Session, Paper 07
Related Records
