Laser-arc hybrid welding (LAHW), being a high-efficiency with excellent properties of high
welding speed, deep penetration, and good bridging performance, has been paid close …

Thick-section steel is widely used in large structural applications, taking advantage of its
characteristics, including high strength, good toughness, and low cost. Ultra-high-power …

The currently available high-power laser presents significant opportunities for welding of
thick section components in single-pass. However, weld defects frequently occur and depth …

With the aim to explore the formation mechanisms of surface underfill, full penetration laser
welding of thick stainless steel was conducted, with the use of a 10 kW fiber laser. A …

Abstract 30CrMnSiA high strength low alloy (HSLA) carbon structural steel is typically
applied in equipment manufacturing and aerospace industries. In this work, the effects of …

Advanced welding processes for structural materials are gaining increasing importance for
strategic applications in nuclear, aerospace, automobile, and defence sectors. These …

A defect-free welded joint of 100 mm-thick SUS 304 steel plates is produced by ultra-narrow
gap laser welding with filler wire in the laser conduction mode in 42 layers. The laser beam …

The ultra-high-power laser welding, with obvious characteristics of fast welding speed, small
heat input, small deformation, large aspect ratio, high alignment, and high directivity, has a …

The deep penetration laser welding of a thick section of austenitic stainless steel by a 20 kW
laser is systematically evaluated. The welding phenomena of bead-on-plate and butt …

An innovative laser technique has been developed for welding 16 mm thick 304L stainless
steel in the horizontal (2G) butt joint configuration. Autogenous laser welding (ALW) was …