Effect of transverse magnetic field on arc characteristics and droplet transfer during laser-MIG hybrid welding of Ti-6Al-4 V
نویسندگان
چکیده
In this study, the effect of transverse magnetic field on arc characteristics and droplet transfer behavior is investigated during Laser-MIG hybrid welding Ti-6Al-4 V. Especially, fields with 0 mT, 8 16 24 32 mT are studied. Results indicate that an appropriate can increase stability characteristics, improve detachment efficiency, reduce defects such as incomplete fusion undercut. By applying 24-mT field, maximum area decrease by 48.7% its variance changing from 2.81 to 1.06 mm2, indicating shrink stability. The reason shrinkage electric streamline in rotates away laser side due influence external field. On other hand, process becomes more uniform under This phenomenon mainly attributed change Lorentz force direction rotation, which resultantly increases effective energy. leads reduction contact time between molten pool. form changes short-circuit meso-spray because time. Therefore, undercut disappears. At last, appropriated parameters laser-MIG (2 kW, 160 A, 2 m/min) concluded B = mT.
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ژورنال
عنوان ژورنال: The International Journal of Advanced Manufacturing Technology
سال: 2021
ISSN: ['1433-3015', '0268-3768']
DOI: https://doi.org/10.1007/s00170-021-08089-w