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. 2019 Feb 8;12(3):516. doi: 10.3390/ma12030516

Table 3.

Parameters for hybrid laser arc welding (HLAW) (laser beam—GMAW) T-joints. Remarks: gas shielding, argon; gas flow rate, 20 dm3/min; preheating drying temperature, 65 °C; arc heat source was placed 4 mm behind the laser beam.

Joint Designation Laser Beam Power (W) Welding Current (A) Welding Speed (m/min) Quality Assessment
HYB1 8500 280 2.0 High quality, small angular plate displacement
HYB2 7000 295 High quality, no visual defects
HYB3 7000 295
HYB4 7000 290
HYB5 7600 290 Low quality, penetration throughout with liquid metal leakage along the entire length of the joint
HYB6 8500 290