Mechanical Behaviour of Inconel 718 Thin-Walled Laser Welded Components for Aircraft Engines

Table 2

Optimal welding parameters and resulting welded specimen.

Welding parameters
Welding speed [mm/min]		4000
Power [W]		2500
Primary gas (He) [l/h]		1500
Shielding gas (Ar) [l/h]		15
Focus [mm]		0.2
Weld macrography
	Dimensional specifications	Welded specimen	Target range
	Welding penetration [mm]; Weld width at 0.4 mm [mm]	1.2; 0.7; No defects observed	1.0 ÷ 1.2; 0.7 ÷ 0.8