Comparison study of 6082 Al alloy laser welding using 455 nm blue laser and 1080 nm near-infrared laser

Microstructure and molten pool morphology of TiB2/ AlSi7Mg composites fabricated by infrared-blue hybrid laser powder bed fusion

“…In 2020, Zediker et al [ 30 ] compared the welding process of copper and 1100 series aluminum under 1000 W blue laser and found that the welds produced without hot cracking and spatters, but the welding width is limited by the spot diameter. Zhou et al [ 31 ] compared the surface morphology and microstructure of welded joints of 6082 aluminum alloy under 550 W/750 W/950 W infrared laser and blue laser. The molten pools are all quasi-semicircular and the blue laser welds have larger molten pool size and columnar crystal size.…”

MICROSTRUCTURE AND PROPERTIES OF LASER-WELDED BUTT JOINTS OF AlSi1MgMn ALUMINIUM ALLOY

“…titanium, magnesium alloys or composites based on carbon fibres. Therefore, they are widely used in aerospace and space constructions, but also in means of civil transport, including cars [1][2][3]. Aluminium and most of its wrought alloys are considered well weldable.…”

“…Lower degree of reflection occurs in the case of lasers emitting a laser beam in a shorter wavelength range of about 1.0 µm or less. Therefore, nearinfrared lasers are preferred for aluminium welding [1]. In the field of laser welding, many studies have been carried out, mainly focused on the influence of welding parameters on the quality of joints and mechanical parameters.…”