Creation of pores and defects during laser powder bed fusion (LPBF) can lead to poor
mechanical properties and thus must be minimized. Post-build inspection is required to …

The AA6082 aluminum alloy was welded by oscillating laser-MIG hybrid welding. By using
beam oscillation, the porosity can be effectively suppressed in the range of 100− 300 A arc …

Laser-induced keyholing occurs in additive manufacturing and welding processes, but the
keyhole dynamics have not been well understood. A multiphase and multiphysics numerical …

Laser welding trials were conducted under low vacuum to reduce porosity defects. The effect
of vacuum on the characteristics of porosity was quantitatively evaluated using 3D micro-CT …

Known as challenging material combination, the welding of aluminium and copper, both with
strongly different thermophysical properties, causes joining failures such as pores, cracks or …

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 …

In laser beam welding of aluminum alloy there is a high susceptibility of pore formation at
low feed rates. Porosity can be improved by application of several laser spots to form the …

The rapid development of laser beam sources and adapted welding technologies in recent
years lead to an increased use of laser welding techniques in automated production …

Page 1 Page 2 Page 3 Laser in der Materialbearbeitung Forschungsberichte des IFSW M. Boley
Bestimmung und Regelung der Kapillar- und Nahttiefe beim Laserstrahlschweißen Page 4 Laser …

The ongoing development of lasers with integrated beam-shaping features offers new
opportunities for research in the field of laser beam welding. Main challenges for laser …