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Assist gas plays a central role in laser fusion cutting. In this work, the aerodynamic interactions between the assist gas and the workpiece are reviewed. An insight into those phenomena that hinder the cutting quality and performance is provided. These phenomena include shock waves, choking, boundary layer separation, etc. The most relevant and promising attempts to overcome these common problems related to the gas dynamics are surveyed. The review of the current scientific literature has revealed some gaps in the current knowledge of the role of the assist gas dynamics in laser cutting. The assist gas interactions have been investigated only under static conditions; and the dynamic interaction with the molten material on the cutting front has not been addressed. New nozzle designs with improved efficiency of molten material removal are required to improve cut quality; and cutting speed in current industrial laser cutting machines; especially in those assisted by new high-brightness laser sources.

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C Free Full-Text The Role Of Functionalization In The Applications Of Carbon Materials: An Overview

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Electron Structure and Magnetic Property of Strongly Correlated Material Systems (1) : What is the Electron Correlation? - Materials Square

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Structural models of three alkali metal-free materials obtained by

IAdChem on X: Dear colleagues, Join us on January 16th at @CienciasUAM for a day dedicated to porous organic materials. Free admission until full capacity. Submit poster author names and title to