The polarization state of a laser beam has a strong influence on the process in almost any
kind of laser material processing. The benefit of material processing with cylindrical …

Recoil pressure is the principal driving force of molten metal in laser processing in the
intensity range 10− 1–10 2 MW cm− 2. It is thus essential to estimate the recoil pressure in …

We demonstrated that azimuthally polarized beams offer high-speed laser micro-hole
drilling compared with radially and linearly polarized beams under a tight focusing condition …

The generation of low surface roughness of the cut edge during laser beam cutting is a
challenge. The striation pattern, which determines the surface roughness, can be …

Hyperspectral imaging (HSI) is a very promising technique for temperature determination in
laser welding without the need for a priori knowledge of the emissivity. HSI is commonly …

The cost of cutting hard-to-machine materials by conventional mechanical machining
processes is high due to the low material removal rate and short tool life, and some …

Abstract Knowledge of the correct temperature distribution on the cutting front is essential to
understand and quantify the thermo-fluid dynamics during laser cutting, which are directly …

Calibration and validation of two temperature measurement techniques both using optical
pyrometry, usable in the framework of the study of the heated metals in highly oxidizing …

The present work deals with the evaluation of gas boundary layer characteristics under
conditions of a high-pressurized gas flow through narrow kerfs as prevalent in laser fusion …

High-speed videos of the cut front and spectrometric measurements were applied to detect
local vaporization on the cut front at high cutting speeds to show that with increasing feed …