During laser powder bed fusion additive manufacturing, laser power absorption is governed
by a protean pool of molten metal that can present as a highly reflective surface, a deeply …

Laser welding of copper is being used with increasing demand for contacting applications in
electric components such as batteries, power electronics, and electric drives. With its local …

The production of parts involving the combination of different materials has gained a lot of
interest in recent years as a strategy for achieving weight reduction. Particular attention has …

Laser welding with high beam intensity generates a metal vapor, which partially displaces
the metal melt, forming a narrow keyhole-shaped fusion zone. This study conducted …

Electric drives continue to grow in importance for future mobility. In recent years, hairpin
winding has become established for stator production. For connecting rectangular hairpin …

Melting modes have a profound impact on heat transfer and fluid flow in laser material
processing. In order to have a better understanding of the thermo-fluidic behavior of the melt …

Full-penetration laser beam welding is characterized by a weld seam whose depth equals
the material thickness. It is associated with a stable capillary and is therefore widely used for …

The increasing demand for contacting applications in electric components such as batteries,
power electronics and electric drives is boosting the use of laser-based copper processing …

Deep penetration laser beam welding is simulated using the mesh-free Lagrangian
Smoothed Particle Hydrodynamics (SPH) method. The physical phenomena modeled are …

The degree of penetration can directly reflect the forming quality of laser welding. The fine-
grained feature of the molten pool/keyhole image brings challenges to the vision-based …