The root pass represents a challenge for welders. Being the first pass of the joint, it requires
full penetration and is more prone to metallurgical defects. There needs to be a balance …

In welding processes, many factors contribute in achieving a required quality of the welds.
Those factors are numerous and they may interact with each other, affecting response …

Penetration depth is a relevant output for laser welding, since its increment enables the
joining of thick plates in one pass, thus contributing to productivity. A usual way of achieving …

The laser powder bed fusion (LPBF) process has historically been operated with high-
brilliance fibre laser sources with continuous wave (CW) emission. Nonetheless, temporal …

The architecture of contemporary fiber laser sources enables users a wide choice in terms of
spatial and temporal profiles during the laser powder bed fusion (LPBF) process. Given the …

Continuous Wave (CW) emission is typically employed in powder bed fusion by laser beam
melting (PBF-LB/M) to additively manufacture components. Contemporary fiber laser …

This study aimed to assess and to understand the effect of modulation frequency on weld
bead porosity. A fiber laser source with a maximum power of 10 kW was used on SAE 1020 …

Alloys developed by fusion-based additive manufacturing often suffer from the coarse
columnar grain structure and their effect on properties. This work involves the practical …

Welding of shipbuilding steels is considered a challenge. First, because of the requirement
to keep the metallurgical continuity that gives the material mechanical strength and …

In the present work, we have compared the results of microstructural and mechanical
property characterization of AISI 430 ferritic stainless steel spot welds made remotely using …